JP2958498B2 - Automatic accompaniment device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic accompaniment apparatus for an electronic musical instrument, and more particularly, to an automatic accompaniment apparatus that displays a moving image together with an automatic accompaniment.

[Conventional technology]

With the spread of electronic musical instruments such as electronic keyboards, electronic wind instruments, and electronic stringed instruments, it has become possible to easily enjoy playing with various types of musical sounds, and one electronic musical instrument can produce many types of musical sounds. It is becoming easier to obtain.

Further, many electronic musical instruments equipped with an automatic accompaniment device have been developed in order to obtain a variety of performance effects with a simple operation.

In this case, the automatic accompaniment is performed in such a manner that the automatic accompaniment is performed using a rhythm instrument sound, a bass and a chord (chord)
Some perform automatic accompaniment by accompaniment, and these enhance musical expressiveness.

Here, in an automatic accompaniment apparatus that performs automatic accompaniment by bass chord accompaniment, the timing for generating a chord sound is, for example, a pattern in which 16 steps (corresponding to a sixteenth note) are set as one set (hereinafter, this is referred to as a chord pattern). Call). That is, it is specified whether or not to generate a chord sound at each step, and the 16-step chord pattern is sequentially read out at a fixed tempo, and while determining and controlling whether or not to sound at each step, the chord sound is generated. If the sounding timing is controlled and played while repeatedly reading out the above 16 steps, a musically rhythmic accompaniment effect can be obtained.

At this time, the designation of the chord progression of the chord sound produced by the chord pattern, that is, how the chord type is designated in accordance with the progress of the music, is determined by the player in a specific key area (hereinafter, referred to as a key area) on the keyboard. This is called an accompaniment key) at any time, or the performer pre-stores the chord progression in a predetermined chord memory and performs an automatic accompaniment based on the chord progression.

[Problems to be solved by the invention]

However, as described above, the conventional automatic accompaniment apparatus performs automatic accompaniment using rhythm instrument sounds, bass and chord accompaniment. Although a realistic play feeling can be obtained, a visual play feeling cannot be obtained.

Of course, if a video monitor is provided on the electronic musical instrument main body and a moving image is displayed on the video monitor, it is possible to obtain a visual sense of play. However, such means can provide image data for displaying a moving image. Becomes enormous. In addition, since image display is performed by the automatic accompaniment device, it is essential that the selected accompaniment pattern or chord progression data and the displayed image are synchronized in rhythm timing. It is necessary to store image data corresponding to accompaniment patterns or chord progression data. As a result, the amount of image data has become further enormous, and practical use has been difficult.

It is an object of the present invention to provide an automatic accompaniment apparatus that can display a moving image corresponding to a plurality of accompaniment patterns or chord progression data with a small storage capacity.

[Means for solving the problem]

In order to solve the above-mentioned problems, in the present invention, a plurality of performance operators, an accompaniment pattern storage means for storing a plurality of accompaniment patterns, and a plurality of types of chord progression data indicating a chord progression order are stored. First selecting means for selecting one of the chord progression data stored in the chord progression data storage means and one of the accompaniment patterns stored in the chord progression data storage means; A first reading means for reading the accompaniment pattern selected by the first selecting means at a predetermined timing; a second reading means for sequentially reading the chord progression data selected by the first selecting means at a predetermined timing Reading means, and code data generating means for generating code data according to the operation of any of the plurality of performance operators, A second selecting means for selecting one of the code data generated from the code data generating means and the code progress data read from the chord progress data storage means; and a code selected by the second selecting means. An automatic accompaniment device comprising: data or chord progression data; and an accompaniment sound generating means for generating an accompaniment sound signal based on the accompaniment pattern read by the first reading means. Screen data storage means for storing a plurality of types of screen data to be displayed, and screen progress data indicating a combination of the plurality of types of screen data stored in the screen data storage means; A screen storing first kind of screen progress data and a plurality of kinds of second screen progress data corresponding to the chord progress data When the line data storage means and the code data generated by the code data generation means are selected by the second selection means, a first screen advance corresponding to the accompaniment pattern selected by the first selection means is performed. Third reading means for selecting and sequentially reading data; and when the chord progression data is selected by the second selection means, a second reading means corresponding to the chord progression data selected by the first selection means. A fourth selecting means for selecting and sequentially reading chord progression data, and a corresponding screen from the screen data storage means based on the screen progression data read by the third selecting means or the fourth reading means. Screen data supply means for sequentially reading data and supplying the data to the display means.

Further, the first screen progress data includes a plurality of types of time data for determining a time interval until the next screen data is read out by the third reading means. Preferably, the screen data is sequentially read out at a corresponding read timing, and the second screen progress data is a plurality of types of time data for determining a time interval until the next screen data is read out by the fourth reading means. It is preferable that the screen data supply means sequentially reads the screen data at a read timing corresponding to the time data.

In addition, it is preferable that the minimum read timing of the first read unit, the second read unit, the third read unit, and the fourth read unit is the same.

Preferably, the first reading means and the third reading means repeatedly read the accompaniment pattern selected by the first selecting means and the first image progress data corresponding to the accompaniment pattern, It is preferable that the second reading means and the fourth reading means repeatedly read the chord progression data selected by the first selection means and the second image progression data corresponding thereto.

Further, when code data from the code data generating means is selected by the external operating means and the second selecting means, the first reading means and the third reading means respond to the operation of the external operating means. The reading operation of the reading means is started, and when the chord progression data is selected by the second selecting means, the second reading means and the fourth reading means are responded to the operation of the external operating means. It is preferable that control means for starting the read operation be further provided.

Further, in the screen data stored in the screen data storage means, specific screen data, which is screen data of a specific screen to be displayed when each of the reading means is in a state before starting reading, is included in the accompaniment pattern and chord progression. When the first reading means and the third reading means are in a state before the start of reading, a plurality of specific screen data corresponding to the accompaniment pattern selected by the first selecting means are stored. And the fourth reading means and the fourth reading means.
It is preferable that the specific screen data corresponding to the accompaniment pattern selected by the first selecting means be supplied to the screen data supplying means when the reading means is before the start of the reading.

(Operation)

In the above configuration, when any of the accompaniment patterns is selected by the first selecting means, the accompaniment patterns are sequentially read by the first reading means. Further, any one of the chord progression data is selected by the first selecting means, and the chord progression data is sequentially read by the second reading means. Either the chord progression data or the chord data corresponding to the operation of the plurality of performance operators is selected by the second selecting means, and an accompaniment sound signal is generated based on the selected chord data and the accompaniment pattern. The accompaniment signal is generated and an automatic accompaniment is performed.

On the other hand, in synchronization with this, the screen progress data corresponding to the selected accompaniment pattern or chord progress data is sequentially read from the screen progress data storage means by the second reading means. The screen progress data is data indicating a combination of a plurality of screen data stored in the screen data storage means, and the screen data supply means includes a screen read from the screen progress data storage means. Screen data is sequentially read from the screen data storage means in accordance with the progress data and supplied to the display means.

That is, as data of the moving image displayed by the display means,
The screen data storage means only stores the individual screen data, while the screen progress data stores data indicating a combination of a plurality of screen data constituting a moving image. Therefore, when a moving image corresponding to a plurality of accompaniment patterns is changed in accordance with the accompaniment pattern to obtain a visual play feeling, the screen data storage means includes a plurality of types of individual screen data for composing the moving image. If the screen progress data storage means has a capacity to store only a combination of the individual screens, the storage capacity is sufficient.

In addition, since the screen progress data includes a plurality of types of time data for reading the next screen data,
The third reading means and the fourth reading means have a plurality of reading timings corresponding to the time data,
The screen data is read. Thereby, the moving image displayed on the display means changes at a plurality of timings.

Further, since the first, second, third and fourth reading means have the same minimum reading timing, it becomes easy to match the change timing between the accompaniment sound and the moving image displayed on the display means.

In addition, the accompaniment pattern and the first screen progress pattern,
Alternatively, the moving image is repeatedly displayed in synchronization with the repetition of the accompaniment pattern or the chord progression data by repeatedly reading the chord progression data and the second screen progression data.

In addition, the external operation means allows the first and third reading means or the second and fourth reading means to start reading according to the operation instruction, whereby the automatic accompaniment and the moving image display start in synchronization. Is done.

Further, since the specific screen data is stored in the screen data storage means, when the first and third reading means are allowed to start reading, that is, when the apparatus is in a standby state, the accompaniment pattern is added. When the corresponding specific screen is displayed on the display means, or when the reading of the second and fourth reading means is permitted to start,
Specific screens corresponding to the chord progression data are displayed on the display means, and these specific screens can display information on the accompaniment pattern or chord progression data to be started from now on.

〔Example〕

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<< Configuration of Embodiment >> FIG. 1 is a configuration diagram of an embodiment of the present invention.

A central control device (CPU, hereinafter the same) 101 is a control device for controlling the entire operation, and has a flag counter register group (FCR, the same applies hereinafter) 1011 therein.

The CPU 101 includes a keyboard section 104, a switch section 105, a pattern memory section 106, a chord progression memory section 107, a chord judge section.
108, a screen memory unit 113, a screen progress memory unit 114, a display unit 115, and a timer clock generation unit 102 are connected.
A rhythm counter 103 that counts up by +1 based on the timer clock from the timer clock generator 102 is connected. Then, the CPU 101 controls the melody sound generation unit 109, the accompaniment sound generation unit 110, and the rhythm sound generation unit 111, and emits a musical sound through the sound system 112.

As exemplified in the accompaniment sound generation unit 110, the melody sound generation unit 109, the accompaniment sound generation unit 110, and the rhythm sound generation unit 111 include, for example, a DCO (Digital c
Controlled Oscillator (1101), DCW (Digital Control) that controls the tone of the output waveform of the envelope generator 1102 and DCO1101
led Wave) 1103, an envelope generator 1104 for determining the temporal change of the tone characteristics, and a DCA (Digital Controlled) for controlling the volume of the output waveform of the DCW 1103.
Amplifier) 1105 and an envelope generator 1106 that determines the time-dependent change in the volume characteristic of the amplifier. Various parameters of the envelope generators 1102, 1104, and 1106 are changed to realize various tone waveforms. I do. Note that the present invention is not limited to the above-described configuration. For example, the rhythm sound generation unit 111 stores a musical tone waveform of an actual rhythm instrument in a memory, and reads out and outputs this in synchronization with a rhythm pattern described later. A configuration of a PCM sound source type may be adopted.

The sound system 112 is means for amplifying and emitting the music waveform output from the melody sound generation unit 109, the accompaniment sound generation unit 110, and the rhythm sound generation unit 111, and is, for example, an amplifier and a speaker.

FIG. 2 shows the appearance of the keyboard unit 104 shown in FIG. As shown in the drawing, the key 1041 is composed of a plurality of keys 1041. In the present embodiment, C ₂ from 0 octave (OC = 0) to 5 octave (OC
= 5) capable of generating a scale of 5 octaves to C ₇ of the.
Of these, the accompaniment key 1042 to C ₂ .about.B ₃ is in the normal play functions as an ordinary key for musical note, in the normal mode of the automatic accompaniment to be described later, serves as a key code specified.

In addition, adjacent to the keyboard unit 104, the switch unit 105 shown in FIG.
Are arranged as shown in FIG. The switch unit 105 is a switch group for performing various settings for automatic accompaniment.

Rhythm switch (hereinafter, switch is referred to as SW) 1051
Consists of six switches # 1 to # 6.
By pressing the button, the rhythm for automatic accompaniment can be specified. In this case, rhythms such as rock, waltz, march, samba, folk and fusion are assigned to the rhythm SW1051 of # 1 to # 6.

The auto chord progression SW 1052 is a switch for specifying an auto chord progression mode, which will be described later. When this switch is pressed, the LED above it turns on.

A start SW 1054 is a switch for designating the start of the automatic accompaniment and an image display described later.
Is a switch for instructing stop of automatic accompaniment and image display.

Intro SW1053, Fill-in SW1056 and Ending
SW1057 is a switch for starting an intro performance, a fill-in performance, and an ending performance, respectively.

The tempo-up SW 1058 and the tempo-down SW 1059 are switches for increasing and decreasing the tempo of the automatic accompaniment, respectively.

As shown in FIG. 5, the display unit 115 has a rectangular shape having 192 pixels in the horizontal direction and 48 pixels in the vertical direction and having 9216 pixels.
LCD.

In the screen memory unit 113, as shown in FIG.
128 types of screen data from screen # 0 to screen # 127 are stored, and the screens # 0 to # 127 are further divided into 1152 blocks of pixel blocks 0 to 1151.
The above-mentioned pixel blocks 0 to 1151 are composed of eight pixel groups in one row in the horizontal direction, and are stored as off = 0 and on = 1 for each pixel.

The screen progress memory unit 114 stores normal mode screen progress data [FIG. 7 (A)], auto code progress mode screen progress data [FIG. (B)], normal mode initial screen data [FIG. C)], and initial screen data for auto code progress mode [FIG. (D)].

The normal mode screen progress data corresponds to each rhythm of # 1 to # 6 of the rhythm SW1051. # 1 to #
6, the screen progress data for the main pattern, the screen progress data for the fill-in pattern, the screen progress data for the intro pattern, and the screen progress data for the ending pattern. It is stored with up to 15 steps.

The same applies to the screen progression data for the auto chord progression mode, and the screen progression data for the main pattern of # 1 to # 6 corresponding to the rhythms of # 1 to # 6 of the rhythm SW1051.
It consists of fill-in pattern screen progress data, intro pattern screen progress data, and ending pattern screen progress data, and each progress data is stored with steps from 0 to 31.

As the initial screen data for the normal mode and the initial screen data for the auto code progress mode, a single screen data among the screen data # 0 to # 127 is the rhythm # 1.
1 to # 6 are stored.

FIG. 8 shows the data structure of the screen progress memory unit 114. The screen number data GD for displaying the initial screen is stored in the header. Screen data Nos. 0 to 127 are stored as 8-bit data for each of 7, 0 to 15, and 0 to 31, and screen sound length data as time data until screen data of the next step is read out. GOD,
Stored for each step. The duration data GOD
Is set such that “0001” = 16th note length is set as the minimum read cycle, and “0100” = 4th note is set as the maximum read cycle.

Here, the minimum read cycle is the same as the minimum note length (sixteenth note length) in the accompaniment pattern described later.
The temporal length of each note data GOD is the same as the minimum note length of note data indicating the note length of the accompaniment sound in the accompaniment pattern.

9 (A) to 9 (G) illustrate the screen memory unit.
An example in which an image is actually displayed on the display unit 115 based on the data 113 is shown. In a normal mode initial screen such as a screen # 1 based on the normal mode initial screen data shown in FIG. Indicates an explanation of the rhythm (rhythm # 1 = rock). (C) (D) (E)
Is an example of a screen change when "lock" of rhythm # 1 is selected. In this example, a graphic is displayed.
In the same figure (B), rhythm # 1 "lock" is selected,
In addition, an example of a display based on the initial screen data when the auto chord progress mode is selected is shown, and each chord progression of the intro, main (main pattern), fill-in, and ending in the rhythm is shown.

(F) and (G) show the case where screen # 6 is displayed as progress screen 1 for auto-code progress mode, and the case where screen # 7 is displayed as progress screen 2 for auto-code progress mode. The chord name of the bar and the position to be pressed are indicated, and the next chord is indicated by the position to be pressed.

<< Schematic Operation of Embodiment >> The schematic operation of the embodiment having the above configuration will be described first.

First, during normal performance without automatic accompaniment, key information KI shown in FIG. 4 is input from the keyboard section 104 shown in FIG. The key information KI includes ON / OFF information OF indicating key depression / key release, a keyword KC indicating one scale out of 12 scales, and an octave code OC indicating an octave. When any key 1041 (FIG. 3) on the keyboard 104 is depressed, the CPU 101
Is based on the above key code KC and octave code OC.
The pitch information corresponding to the depressed key is generated and supplied to the melody sound generation unit 109. As a result, the melody sound generator 1
09 generates a melody sound based on the pitch information and emits the sound via the sound system 112.

Next, at the time of automatic accompaniment, it is possible to designate two types, a normal mode and an auto chord progression mode.

First, in the normal mode, the player can select one of six rhythms such as rock, waltz, and ‥‥‥. When one of the rhythms is selected, an initial screen corresponding to the selected rhythm is displayed on the display.
Displayed at 115. After that, when the automatic accompaniment is started, the rhythm accompaniment sound is started from the rhythm sound generation unit 111 of FIG. 1 in a rhythm pattern including 16 independent steps for each rhythm instrument sound. It is repeated. In this case, 16 steps correspond to 1
Corresponding to a bar, and therefore, for example, the same rhythm pattern is repeated for each bar.

Also, in synchronization with the start of the automatic accompaniment, the initial screen disappears, and the display unit 115 displays the above-described screens shown in FIGS. 9C and 9D based on the screen progress data corresponding to the selected rhythm.
(E) The image display as illustrated is performed.

In this state, the player operates the keyboard 104 shown in FIG. 1 or FIG.
Any by depressed the accompaniment 1042, the accompaniment tone generating unit 110 of FIG. 1, at root corresponding to the accompaniment, 16 steps different from the rhythm pattern between the C ₂ .about.B ₃ The sound of the accompaniment sound with the predetermined bass sound is started and repeated in the base pattern of. At the same time, the first
From the accompaniment sound generation unit 110 shown in the figure, a chord corresponding to the accompaniment key, a chord pattern including 16 steps different from the rhythm pattern and the base pattern, and a chord composed of a predetermined chord tone, for example, 3 or 4 tones Accompaniment sound is started and repeated.

As described above, in the normal mode, for example, when a rock rhythm is selected, a rhythm accompaniment of a rock rhythm pattern by a plurality of rhythm instrument sounds is performed, and a moving image corresponding to the rock is displayed on the display unit 115. At the same time as specifying the chord with the accompaniment key 1042 in FIG. 3, based on the chord type and root note, the base accompaniment of the rock base pattern / base tone and the chord accompaniment of the rock chord pattern / chord timbre Automatic accompaniment can be started. In this case the player may by the key 1041 of the higher scale than B ₃ of the keyboard portion 104 of FIG. 2, freely perform a melody or the like in addition to the accompaniment.

Next, in the auto chord progress mode, when the rhythm is selected and the automatic accompaniment is started, as in the normal mode, the rhythm accompaniment is started in the same manner as in the normal mode, and an image corresponding to the selected rhythm is displayed. Display 115
At the same time, reading of a base pattern and a chord pattern different from the rhythm pattern also starts. In this case, the base pattern and the chord pattern repeat a predetermined 16-step pattern corresponding to the selected rhythm. At this time, the scales of the base sound and the chord sound correspond to the previously stored chords corresponding to the selected rhythm. Are automatically specified by sequentially reading out the chord progression data consisting of a combination of
The player does not need to use the keyboard unit 104 to enter chords.

In this manner, in the auto chord progression mode, for example, when a rock rhythm is selected, in addition to the rhythm accompaniment of the rock rhythm pattern by a plurality of rhythm instrument sounds, the bass accompaniment of the rock base pattern / bass progression and the rock chord are performed. Automatic accompaniment can be performed by the chord accompaniment of the pattern chord progression. And, the performer
A melody performance or the like can be freely performed in accordance with the accompaniment by using an arbitrary key 1041 of the keyboard section 104 shown in FIG.

Note that in both the normal mode and the auto chord progression mode, the player can use the intro SW1053, FIG.
Various performance effects can be added by the fill-in SW 1056 and the ending SW 1057, and the rhythm SW 1051 in FIG. 3 can be switched even during the performance. And the above intro SW1053, fill-in SW1056, ending SW10
When 57 is operated, the image displayed on the display unit 115 also changes according to each of the intro, fill-in, and ending patterns.

<< Detailed Operation in Normal Mode >> Next, a detailed operation in the normal mode during automatic accompaniment will be described.

Description of FCR First, the FCR 1011 in FIG. 1 is shown in FIG. 21 and listed below.

Rhythm number register RR (FIG. 21 (a)); 3-bit register pattern register PR (FIG. 21 (a) indicating which rhythm is currently specified among rhythm SW 1051 of # 1 to # 6 in FIG. b)); 2-bit register indicating whether the current rhythm pattern or chord pattern is a regular pattern, a fill-in pattern, an intro pattern, or an ending pattern, a prerhythm number register PRR (FIG. 21 (c));
A 3-bit register indicating the rhythm number immediately before the current rhythm is specified. Accompaniment flag BF (FIG. 21 (e)); 1 bit indicating whether an automatic accompaniment or an automatic rhythm is currently being performed. The tempo data register TR (FIG. 21 (f)) is a 5-bit register that indicates the current tempo, and the count value RC of the rhythm counter 103 counts up based on this tempo. 21 (g)); 1-bit flag indicating whether or not the mode is the auto code progress mode. Pattern change standby flag PTF (FIG. 21 (h));
The rhythm is switched or the ending SW1057 (3rd
Figure) is pressed until the pattern is actually switched.
A 1-bit flag indicating whether or not the apparatus is on standby. Duration counter OC (FIG. 21 (i)); Counter for counting by subtracting the duration of chord progression Code counter CC (FIG. 21 (j)); Counter for incrementing the address of chord progression data Code name register OCR (Fig. 21 (k)); Register for storing code name data CD Screen sound length counter GCO (Fig. 13 (m)); Counter that subtracts and measures the sound duration Screen counter GC (Fig. 13 (n)); Counter that counts up the address of screen progress data Screen number register GNR (Fig. 13 (o)); 4-bit register indicating current screen # The operation of the normal mode will be described below.

Standby Operation First, when the player turns on the power of the main body (not shown), the main operation flowchart of FIG. 10 starts, and initial processing is first performed in SA01. The details of this process are shown in FIG. That is, SB01-
Various flags and counters are initialized in SB12. The reason why the content of the tempo data register TR is initialized to 16 is that the tempo is set to an intermediate value since the register can take a value of 0 to 31 as described later. After these processes, the initial process ends.

After the initial processing in FIG. 10 SA01, the processing loop of SA02 to SA07 is repeated.

First, in SA02, tempo processing is performed. The details of this process are shown in FIG. That is, it is determined at SC01 whether or not the tempo-up SW 1058 in FIG. 3 has been pressed. If it is determined that the same switch has been pressed, the value of the tempo data register TR is incremented by 1 at SC03.
Then, the tempo is raised, and the tempo processing ends. If the determination in SC01 is NO, it is determined in SC02 whether the tempo-down SW 1059 in FIG. 3 has been pressed, and if it is determined that the same switch has been pressed, the value of the tempo data register TR is decremented by 1 in SC04, To end the tempo processing. The value of the register is controlled so that it does not become 0 or less or 31 or more, although not particularly shown. If the determination in SC02 is NO, the tempo processing ends without performing the tempo control.

After the tempo processing in FIG. 10 SA02, the initial rhythm switching processing is performed in SA03. The details of this process are shown in FIG. That is, it is determined whether or not the rhythm SW 1051 in FIG. 3 has been switched at SD01. The rhythm is switched, and the initial rhythm switching process ends. Here, as shown in FIG. 21 (a), corresponding to rhythm numbers # 1 to # 6 (see also FIG. 3), values of 0 to 5 are set in a 3-bit binary number.
On the other hand, the rhythm SW1051 is not switched and the judgment of SD01 is made.
If NO, the initial rhythm switching process ends without doing anything.

After the end of the initial rhythm switching in SA03 in FIG. 10, an initial display process is performed in SA04. The details of this process are shown in FIG.
That is, first, it is determined whether or not ACF = 0, and if the mode is the normal mode, this determination is YES as shown in FIG. 21 (g). Therefore, the screen progress memory unit 1 in SI02
Read the rhythm # indicated by RR in the normal mode initial screen data in 13.

That is, for example, if the lock of rhythm # is selected here, "0" (0 = rhythm # 1) is stored in the rhythm number register RR (FIG. 21 (a)). The initial screen for the normal mode indicated by "is read. Next, the screen number data GD (13th
(FIG. 21) is stored in the screen number register GNR (FIG. 21 (o)). Further, at SI04, a screen # indicated by the screen number register GNR in the screen memory unit 113 is read and transferred to the display unit 115 for display. Therefore, this SI04
Is executed, the display unit 115 displays an initial screen as a specific screen as illustrated in FIG. 9A.

For this reason, by displaying information about the accompaniment pattern (lock) to be started from this initial screen during the standby operation, the user of the electronic musical instrument can use the time during the standby operation to perform the performance. We can give useful information.

When the determination of SI01 is NO, FIG. 21 (g)
As shown in, the mode is the auto chord progress mode. In this case, the rhythm # indicated by RR of the auto chord progress initial screen data in the screen progress memory unit 114 is read in SI05,
Similarly, proceed from SI03 to SI04. Therefore, in this case, the initial screen for the auto code illustrated in FIG. 9B is displayed.

After the initial display switching process in FIG.
It is determined whether or not the auto code progress SW 1052 in the figure has been pressed. Since the switch is not pressed in the normal mode, the determination is NO.

Subsequently, it is determined whether the intro switch SW1053 in FIG. 3 has been pressed in SA06. The case where the button is pressed will be described later.

If the judgment of SA06 is NO, the start SW10 of FIG.
It is determined whether 54 has been pressed.

If the start SW1054 is not pressed, the above SA02 to SA07
Is repeated, and the auto code progress SW 1052 in FIG.
It waits until either the intro SW1053 or the start SW1054 is pressed. Therefore, during this time, the initial screen is continuously displayed.

Reproduction operation of rhythm sound only In the standby state shown in FIGS.
When the start switch 1054 shown in the figure is pressed, a playback operation of only the rhythm sound starts.

First, after the determination in SA07 is YES, it is determined in SA10 whether or not the content of the accompaniment flag BF is 1, that is, whether or not the automatic accompaniment is being performed or the automatic rhythm is being performed. Since the flag is initially set to 0 in the initial processing of SA01 (SB08 in FIG. 11), the auto rhythm is initially performed and the determination of SA10 is NO.

Subsequently, if the player does not press the accompaniment key 1042 in FIG. 2, the determination in SA22 is also NO, and the normal mode display progress processing is performed in SA25. The details of the normal mode display progress processing are shown in FIG. That is, first, in SJ01, it is determined whether or not the value of the pattern register PR is “1”, that is, whether or not the fill-in SW 1056 is pressed. If this determination is NO, SJ02
Then, it is determined whether or not the value of the screen sound length counter GOC is “0”. If this determination is YES, it is time to read the next screen data, and it is further determined in SJ03 whether or not screen sound length data GOD = F. The case where the screen sound length data GOD becomes “F” is the case where one display pattern is completed as shown in FIG. 27 (A).
If the judgment is YES, the screen counter GC is set to “0” in SJ04.
Is set. Therefore, by executing SJ03 and SJ04, the image is repeatedly read and displayed every time the image display based on the currently executed screen progress data ends. At this time, since the accompaniment pattern is also repeated in the same manner, it is possible to learn the accompaniment pattern by visually relating the image display by repeating both.

On the other hand, if the determination in SJ03 is NO, it is determined whether PR = 2, that is, whether the intro SW 1053 has been pressed (SJ0
Five). If this determination is NO, it is further determined whether PR = 3, that is, whether the ending SW 1057 has been pressed (SJ
06), if this determination is also NO, read the GC step of the rhythm # indicated by RR in the normal mode main pattern screen progress data (SJ07). That is, assuming that the example of FIG. 27A is the progress of the main pattern screen of rhythm # 1 and that the current step is “3”, GD = # 4, GOD = 1
Is read.

Then, GOD = 1 is stored in GOC (SJ08), and GD = # 4 is stored in GNR (SJ09). Then, the location of the screen # (FIG. 6) indicated by the GNR in the screen memory unit 113 is read and transferred and displayed on the display unit 115 (SJ10). Further, the GC is incremented (SJ11), and the GCO is counted down (SJ12).

That is, as understood from the processing of SJ07 and SJ10 and FIGS. 6 and 8, the screen memory unit 113 merely stores the individual screen data # 0 to # 127. The unit 114 merely stores screen progress data obtained by combining a plurality of screen data # 0 to # 127, that is, data on screen progress for each accompaniment pattern.

Therefore, even if a plurality of types of accompaniment patterns are set, the screen memory unit 113 only needs to have a capacity to store only a plurality of pieces of screen data used for it, regardless of the number of types of the accompaniment patterns. , Screen progress memory
In the case of 114, a capacity for storing only the order of the screen data and the sound length data regardless of the contents of the screen data is sufficient. Therefore, by using the memory units 113 and 114 having a small capacity, display according to the accompaniment pattern is performed on the display unit 115, and it is possible to obtain a visual sense of play and the like.

The case where the determinations of SJ01, SJ05, and SJ06 are each YES will be described later.

Then, after performing the normal mode display advance processing in SA25 as described above, BF = 1 is determined in SA10 in FIG. 10, but since this determination is NO as described above at this time,
Perform rhythm playback processing of SA17. The details of this process are shown in FIG.

First, in SE01, SE02, and SE03, it is determined whether the value of the pattern register PR is 1, 2, or 3, that is, whether the pattern to be automatically accompanied is a fill-in pattern, an intro pattern, or an ending pattern. When the player presses the start SW1054, the register is initialized to 0 in the initial processing of SA01 (the
At the beginning, this pattern is used, and the determinations in SE01 to SE03 are all NO, and the process proceeds to SE04.

In SE04, it is determined whether the value of the pattern change waiting flag PTF is 0 or not. Although the function of this flag will be described later, since the flag is initially set to 0 in the initial processing of SA01 (SB07 in FIG. 11), the determination in SE04 is NO.
, And the process proceeds to SE05.

In SE05, a process of reading the step indicated by the counter value RC of the rhythm counter 103 in FIG. 1 from the 16-step main rhythm pattern corresponding to the rhythm number indicated by the rhythm number register RR is performed. Now, a rhythm pattern (a chord pattern and a base pattern will be described later) having a configuration as shown in FIG. 22 is stored in the pattern memory unit 106 connected to the CPU 101. As shown in the figure, the rhythm pattern is composed of four patterns: a main pattern, a fill-in pattern, an intro pattern, and an ending pattern. Further, each of these patterns has 16 steps of 0 to 15 for each of the rhythms # 1 to # 6. It consists of a pattern.

FIG. 23 (a) shows a rhythm pattern of each of the 16 steps shown in FIG. As shown in the figure, at the time of automatic accompaniment, it is possible to specify whether or not to produce a rhythm sound for each step by a binary number of 0 or 1 for each of eight rhythm instrument sounds. here,
BD is a bass drum sound, SN is a snare drum sound, CH is a closed hi-hat sound, OH is an open hi-hat sound, T1 to T2 are toms 1 to 3, and CY is a cymbal sound. With these configurations, in SE05 in FIG. 14, the CPU 101 in FIG.
From the main rhythm pattern of FIG. 22 stored in the pattern memory unit 106, the first rhythm pattern of the rhythm number (any of # 1 to # 6) corresponding to the value indicated by the rhythm number register RR is used. Rhythm counter in the figure
The step corresponding to the counter value of 103 is read.

Subsequent to the above-described operation, in SE06 of FIG. 14, the rhythm sound generation unit 111 of FIG. At this time, as shown in FIG. 23 (a), about eight kinds of rhythm sounds are generated in parallel, so that the above operation also requires eight timbres. This is because the rhythm sound generation unit 111 of FIG. By performing the time division operation, each rhythm sound can be performed independently. As a result, the rhythm sound generation unit 111 generates a rhythm sound for each rhythm sound at a timing based on the rhythm pattern, and emits the sound via the sound system 112.

When the processing of SE06 ends, the rhythm sound reproduction processing for one step ends.

When the rhythm reproduction process for one step is completed in SA17 of FIG. 10, the process waits for input of a timer clock from the timer clock generator 102 in FIG. 1 by repeating SA18.

When the timer clock is input, the rhythm counter 103 in FIG. 1 is counted up in SA19.

After the processing of SA20 and SA21 (described later), SA
10, each determination of SA22 is NO (these are also described later),
The normal mode display progress processing of SA25 and the rhythm reproduction processing of SA17 are performed again. In this case, in SJ07 of FIG.
Since the value of the rhythm counter 103 shown in the figure is incremented by one, it corresponds to the value indicated by the rhythm number register RR in the main rhythm pattern of FIG. 27 (A) stored in the screen progress memory unit 114 of FIG. Rhythm number (# 1 to # 6)
The step read out from the rhythm pattern of any of (1) is advanced by one from the previous processing.

Similarly, in SE05 of FIG. 14, the rhythm counter of FIG.
Since the value of 103 is incremented by 1, the rhythm number (# 1 to ##) corresponding to the value indicated by the rhythm number register RR among the main rhythm patterns of FIG. 22 stored in the pattern memory unit 106 of FIG. 6), the step read from the main rhythm pattern proceeds by one from the previous processing.

Then, according to the read step, SJ10 in FIG.
The transfer display processing to the display unit 113 is performed in
At step SE06 in FIG. 4, a rhythm sound generation process is performed.

As described above, SA10 → SA22 → SA25 → SA14 → SA in FIG.
By repeating the loop processing from 17 to SA21 to SA10, the rhythm # (# 1) corresponding to the value indicated by the rhythm number register RR in the screen progress data for the main pattern in FIG.
(Steps # 6 to # 6) in eight steps (0 to 7) of screen progress data are sequentially read out and displayed on the display unit 115 based on the data. In the rhythm pattern of FIG. 14,
The 16-step main rhythm pattern of the rhythm number (any one of # 1 to # 6) corresponding to the value indicated by the rhythm number register RR is sequentially read, and a rhythm sound is generated in accordance with the pattern.

In this case, the rhythm counter 103 in FIG. 1 is a hexadecimal counter, and after counting up from step 0 to step 15 (for 16 steps), returning to step 0 again, each rhythm sound repeats for a predetermined 16 steps. Pronounced. Then, these 16 steps correspond to, for example, one bar on the musical score. In other words, about eight kinds of rhythm sounds at the time of automatic accompaniment repeatedly play a fixed rhythm pattern for each bar.

On the other hand, as shown in FIG. 27 (A), the present pattern screen progress data is composed of 0 to 4 steps (for 5 steps), but since the pitch of 4 steps is “4”,
This corresponds to eight steps for the reading step of the main rhythm pattern. For this reason, as shown in the first bar of FIG.
The same display pattern is repeated twice on the display unit 115 while the display unit 115 is executed twice. As a result, at the beginning of the second bar, which is the next bar, the sound of the main rhythm pattern and the image on the display unit 115 again match. Therefore, the rhythm pattern is synchronized with the start point and the end point of the screen progress, so that an image with automatic accompaniment can be always displayed.

In addition, since the minimum read cycle of the present rhythm pattern and the screen advance are both 16th note lengths, the two are rhythmically matched, and thus the rhythm timing of the automatic accompaniment is visually recognized by the player. Can be perceived.

In this embodiment, the time length of one screen progression pattern is half that of the present rhythm pattern. However, if the time lengths of both patterns are the same, the automatic accompaniment can be further improved. Rhythm timing can be visually perceived.

Further, in the progress of the present pattern screen shown in FIG. 27 (A), the screen sound length data of the four steps is “4” as described above.
However, since the timing of reading the next screen data is longer than other steps, the change in the screen displayed on the display unit 115 does not become monotonous, and the visual sense of play is improved. You can do it.

When the tempo is switched during the playback operation of only the rhythm sound In the playback operation of only the rhythm sound, the sounding speed of the rhythm sound is determined by SA19 in FIG. 10 and the rhythm counter 10 in FIG.
The speed at which 3 is counted up, that is, the speed at which the timer clock is input from the timer clock 102 in FIG. The input timing of the timer clock is determined by the CPU 101 shown in FIG.
It is determined in 31 steps according to the value of TR from 0 to 31. The value of the tempo data register TR is initially set to the intermediate value 16 in the initial processing of SA01 in FIG. 10 (SB02 in FIG. 11), and can be changed in SA02 in FIG. 10 before the automatic accompaniment. .

In addition to this processing, the player performs the third
By operating the tempo-up SW 1058 or the tempo-down SW 1059 shown in FIG.
The value of TR can be changed. This processing is exactly the same as the tempo processing of SA02, and is shown in FIG. 12 already described.

Through the above processing, the player can change the tempo of the rhythm sound being sounded even during automatic accompaniment.

When the rhythm is switched during the reproduction operation of only the rhythm sound In the reproduction operation of only the rhythm sound, the main rhythm pattern of any one of # 1 to # 6 is selected from the main rhythm patterns of FIG. Are # 1 to # 6 corresponding to the values 0 to 5 indicated by the rhythm number register RR.
Is determined by the rhythm number.

The value of the rhythm number register RR is changed in SA03 in FIG. 10 before the automatic accompaniment starts, and even during the reproduction of the rhythm sound, the player can change the rhythm SW1051 of # 1 to # 6 in FIG.
The rhythm pattern can be arbitrarily changed by selecting a desired one from among the above. This operation is realized as a part of various switching processes of SA21 in FIG. 10, and details of the process are shown in FIG.

First, the determinations of SF01 to SF03 are all NO (this will be described later), and the process proceeds to SF04. Here, the rhythm SW in FIG.
If 1051 is not switched, the determination of SF04 is NO, and various switching processes are terminated. On the other hand, if the SW is switched, the determination of SF04 is YES, and the process proceeds to SF05 and SF06.

In SF05, the previous value of the rhythm number register RR is copied to the prerhythm number register PRR. Next SF06
Then, the rhythm is switched by setting a value corresponding to the rhythm number of the rhythm SW 1051 in the rhythm number register RR.

Next, in SF07, the counter value RC (indicating the next step to be sounded) of the rhythm counter 103 in FIG.
That is, it is determined whether or not it is a timing at which the present rhythm pattern of 16 steps is just a good break.

When the determination of SF07 is YES, that is, when the timing is just a good break, the process proceeds to SF08 and the auto code progress flag
It is determined whether the value of ACR is 1 or not. Currently, the mode is the normal mode, and the contents of the ACR are initially set to 0 in the initial processing of SA03 in FIG. 10 (SB03 in FIG. 11).
If the determination is NO, the process proceeds to SF11. In SF11, after the value of the pattern change standby flag PTF is set to 0, various switching processes are ended. In other words, at the timing where the 16-step rhythm pattern
Becomes 0.

On the other hand, if the determination in SF07 is NO, that is, if the timing is in the middle of the 16-step rhythm pattern, the process proceeds to SF16, in which the value of the pattern change standby flag PTF is set to 1, and the various switching processes are terminated. That is, at a timing in the middle of the 16-step rhythm pattern, the value of the PTF becomes 1.

After the value of the rhythm number register RR is changed and the value of the pattern change standby flag PTF is set as described above, the determination of SA10, SA14, and SA22 in FIG. 10 becomes NO, and the normal state of SA25 is returned again. The mode display progress processing and the rhythm reproduction processing of SA14 are started.

Here, if the rhythm is switched at a timing at which the present rhythm pattern of 16 steps is just a good break, the value of the pattern change standby flag PTF is 0,
After passing through SE01 to SE03 in the figure, the determination in SE04 is YES. Accordingly, in the next SE05, the rhythm number corresponding to the new value indicated by the rhythm number register RR due to the switching of the rhythm among the main rhythm patterns of FIG. 22 stored in the pattern memory unit 106 of FIG. Are sequentially read from step 0, and thereafter, a rhythm sound is generated with the changed rhythm pattern.

On the other hand, at this time, in the normal mode display progress processing of FIG. 19, the determination of SJ01, SJ05, SJ06 is NO, and the rhythm is switched at the timing that the rhythm pattern is easily separated as described above. If the value of the change standby flag PTF is 0, the judgment of SJ02 is YES, and after passing through SJ03 to SJ06 in FIG. 19, the SJ07 is stored in the screen progress memory unit 114 of FIG. 1 in SJ07. Fig. 7 (A)
Of the screen progress data for this normal mode pattern,
Read the rhythm # GC step indicated by RR. At this time, if the present rhythm pattern is sequentially read from step 0 as described above, the screen progress data is also read from step 0 similarly from the time length of both data described above, and thereafter, the changed screen progress The display is made with data.

On the other hand, if the rhythm is switched at a timing in the middle of the 16-step rhythm pattern, the value of the pattern change standby flag PTF is 1, and after passing SE01 to SE03 in FIG. 14, the determination of SE04 becomes NO. Proceed to SE07.

In SE07, among the main rhythm patterns of FIG. 2 stored in the pattern memory unit 106 of FIG. 1, the main rhythm pattern of the rhythm number corresponding to the value indicated by the pre-rhythm number register PRR is used. Counter 103
The step corresponding to the counter value RC is read out. Here, since the value corresponding to the rhythm number before the rhythm is switched is stored in the prerhythm number register PRR, the value RC of the rhythm counter 103 in FIG.
Until is determined to be 15, the process proceeds to SE06, and a rhythm sound is generated in the present rhythm pattern before the rhythm is switched.

Then, the rhythm reproduction processing of SA17 is repeated by the loop of SA10 to SA21 in FIG. 10, and when the value RC of the rhythm counter 103 becomes 15 in SE08 in FIG. Is the last 15 steps, the determination is YES, and the next determination in SE10 is NO (the ACR value is 0 because it is in normal mode), and the value of the pattern change standby flag PTF is changed in SE12. It returns to 0 and proceeds to SE06 to sound the final step of the rhythm pattern before the rhythm is switched. After this operation, when the rhythm reproduction process of SA17 is started again after going around the loop of SA10 to SA21 in FIG. 10, since the PTF is set to 0, STF in FIG.
When the determination at E04 is YES, the new value indicated by the rhythm number register RR due to the rhythm switching among the rhythm patterns of FIG. 22 stored in the pattern memory unit 106 of FIG. Is sequentially read from step 0, and thereafter, a rhythm sound is generated with the changed rhythm pattern. As described above, when the rhythm is switched at a timing in the middle of the 16-step main rhythm pattern, the rhythm is switched to a new main rhythm pattern after the sound is generated in the main rhythm pattern before the rhythm is switched from the break to the timing.

Then, the main rhythm pattern of the rhythm number is sequentially read from step 0, and if the rhythm sound is generated in the changed rhythm pattern, the screen is similarly displayed from the time length of both data as described above. The progress data is also read from step 0, and thereafter the display is made with the changed screen progress data.

When the fill-in SW is pressed during the playback operation of only the rhythm sound While the normal mode display progress processing of SA25 and the rhythm playback processing of SA14 are repeated by the loop of SA10 to SA21, the player The operation when the fill-in SW 1056 is pressed will be described. In this case, a rhythm sound is generated in a fill-in rhythm pattern from the timing to the fifteenth step, and thereafter, the process returns to the main rhythm.

The switching preparation process for this is performed in various switching processes of SA21 in FIG. That is, in FIG. 15, SF
When the determination of 01 is YES, the process proceeds to SF17, where the value 1 is set in the pattern register PR, and then ACF =
It is determined whether it is 1 or not. At this time, since the mode is the normal mode, the determination is NO, and the rhythm counter 103 shown in FIG.
Is stored in the GC (SF19), and the various switching processes in SA18 in FIG. 10 are completed.

After the value of the pattern register PR and the value of the screen counter GC are changed as described above, the determination of SA10 and SA22 in FIG. 10 becomes NO, and the normal mode display processing of SA25 and the rhythm reproduction of SA14 are performed again. Processing and SA25 normal mode display processing are entered.

In FIG. 14, since the above PR = 1, the judgment of SE01 is YE
In S, the process proceeds to SE13. In SE13, among the fill-in rhythm patterns of FIG. 22 stored in the pattern memory unit 106 of FIG. 1, the fill-in rhythm pattern of the rhythm number corresponding to the value indicated by the rhythm number register RR is converted to the rhythm counter 103 of FIG. The step corresponding to the counter value is read out.

After that, until the value of RC is determined to be 15 in the next SE14,
Proceeding to SE06, a rhythm sound is generated in a fill-in rhythm pattern.

On the other hand, in FIG. 19, the judgment of SJ01 is YES because the above PR = 1.
And the process proceeds to SJ14. In SE14, the fill-in rhythm of the rhythm # number corresponding to the value indicated by the rhythm number register RR among the normal mode fill-in screen progress data of FIG. 7A stored in the screen progress memory unit 114 of FIG. The step indicated by the screen counter GC is read from the pattern. (At this time, the GC
It is set in SF19. Then, it is determined whether or not GNR = GD (SJ16). If this determination is NO, that is, only when the display screen needs to be changed, the processing of SJ09 and SJ10 is performed to save the screen number register. Change the contents and change the display.

FIG. 27 (B) shows an example of the fill-in screen progress data in the normal mode.
The screen progress is stored for each step proceeding in the length of the sixth note (the minimum time length in this embodiment). In other words, since it is uncertain at which point in time the fill-in is to be switched, no matter at which point the switch-in is performed, the screen number data corresponding to this point can be immediately read out for each step consisting of the minimum time length. The screen number data is stored. Therefore, in the fill-in screen progress data, when the same screen is displayed for a time longer than the minimum time length, the same screen number data GD continues as in steps 8 to 11. In such a case, if the same data is transferred and displayed on the display unit 115 at every sixteenth note length, a flicker occurs on a screen displaying the same image. Therefore, if the determination of GNR = GD is YES, only the processing of SJ11 and SJ12 is performed, and the same image is displayed continuously.

As described above, even when the rhythm is switched at an intermediate timing of the 16-step main rhythm pattern, the screen is immediately changed to the fill-in rhythm pattern and the fill-in screen. As a result, the performer switches the fill-in SW shown in FIG.
At the timing when 1056 is pressed, a fill-in effect can be added to the sounding rhythm sound and a fill-in screen can be displayed.

Based on the above operation, SA10 → SA22 → SA25 →
In the loop of SA14 to SA21, the normal mode display progress processing of SA25 and the rhythm reproduction processing of SA14 are repeated, and FIG.
In SE14, when the value of the rhythm counter RC103 in FIG. 1 becomes 15, that is, when the rhythm pattern to be sounded next becomes the last 15 steps, the determination in SE14 in FIG. 14 is made.
YES, proceed to SE15.

In SE15, the content of the pattern register PR is returned to 0, and preparation for returning to the present rhythm pattern is made. Next, SE16
Steps SE18 to SE18 are performed, and these processes are processes in an auto code progress mode described later. After these processes, the process proceeds to SE06, where the rhythm sound of the last step of the fill-in rhythm pattern is generated.

After the above operation, SA10 → SA22 → SA25 → SA14 ~ SA in FIG.
When the rhythm reproduction process of SA17 is started again after the loop of 21 → SA10, the PR is set to 0, so that the determination of SE01 to SE03 in FIG. 14 becomes NO, and the sound generation operation based on the rhythm pattern is returned. The determination of SJ01, SJ05, and SJ06 in FIG. 19 is also NO, and the screen returns to the normal mode main pattern screen.

When the ending switch is pressed during playback of only the rhythm sound, the loop from SA10 → SA22 → SA25 → SA14 to SA21
The operation when the player presses the ending SW 1057 in FIG. 3 while the normal mode display progress processing of SA25 and the rhythm reproduction processing of SA14 are being repeated will be described. In this case, after the rhythm sound is generated to the point where it is well-divided by the present rhythm pattern, the rhythm sound is generated by the ending rhythm pattern of 16 steps, and the automatic accompaniment by the rhythm sound ends.

The switching preparation process for this is performed in various switching processes of SA21 in FIG. That is, in FIG. 15, SF
When the determination of 02 is YES, the process proceeds to SF15, where the value 3 is set in the pattern register PR, and the flow proceeds to the determination of SF07.

In SF07, the counter value RC of the rhythm counter 103 in FIG.
Is determined to be 0, that is, whether or not the timing of the rhythm pattern of the 16 steps is good.

If the determination of SF07 is YES, that is, just a good timing for the break, the determination of SF08 is NO and the process proceeds to SF11,
After the value of the pattern change waiting flag PTF is set to 0, various switching processes are terminated. That is, similarly to the case of the rhythm switching during the rhythm sound reproducing operation, the value of the PTF becomes 0 at a timing at which the present rhythm pattern of 16 steps is exactly separated.

On the other hand, when the determination of SF07 is NO, that is, when the timing is in the middle of the 16-step rhythm pattern, the process proceeds to SF14, and the value of the pattern change standby flag PTF is set.
The various switching processes are completed. That is, at a timing in the middle of the 16-step rhythm pattern, the value of the PTF becomes 1. This is the same as in the case of the rhythm switching.

After the value of the pattern register PR is changed and the value of the pattern change waiting flag PTF is set as described above, the determination of SA10 and SA22 in FIG.
The normal mode display progress processing and the rhythm reproduction processing of SA14 are started.

Then, the determination at SE03 in FIG. 14 becomes YES, and the process proceeds to SE19 and proceeds to the processing of the ending rhythm pattern.

Here, the ending rhythm SW shown in FIG.
If 1057 is pressed, the pattern change wait flag PTF
Is 0, the determination in SE19 is YES. Accordingly, in the next SE21, the ending rhythm pattern of the rhythm number corresponding to the value indicated by the rhythm number register PR among the ending rhythm patterns of FIG. 22 stored in the pattern memory unit 106 of FIG.
, And then the value of RC103 is set to 1 in the next SE22.
Until determined to be 5, the program proceeds to SE06, where a rhythm sound is produced in the ending rhythm pattern.

Then, the rhythm reproduction process of SA17 is repeated by the loop of SA10 → SA22 → SA25 → SA14 to SA21 in FIG.
When the value of 103 becomes 15, that is, when the rhythm pattern to be sounded next becomes the last 15 steps, the determination in SE22 becomes YES, and the last step of the ending rhythm pattern is sounded in SE23.

After this operation, the process jumps from SE23 to the determination of SF20 via the paths of FIG. 15 in the various switching processes of SA18 in FIG. Then, since the determination of SF20 is NO (the ACR value is 0 in the normal mode), the process jumps from SF20 to the process after SB03 via the route of FIG. 11 in SA01 of FIG. To end. After this processing, FIG. 10 SA01
After the initial processing of (3) in FIG. 11 (processing after SB03 in FIG. 11), the processing in SA02 to SA07 is repeated, and the process waits until any of the auto code progress SW1052, intro SW1053 or start SW1054 in FIG. 3 is pressed. Note that SB01 in FIG.
The initial setting of the rhythm number register RR and tempo data register TR of SB02 and SB02 is not performed, and when the start SW1054 or the like is pressed next, automatic accompaniment starts with the rhythm number and tempo up to now.

Further, in FIG. 19, the judgment of SJ06 is YES,
Proceeding to J13, the GC step of the rhythm # indicated by RR in the normal mode ending screen progress data (FIG. 7 (A)) is read, and the subsequent processing SJ08, SJ09, SJ10 is the same as described above. Through these processes, the normal mode ending screen is displayed on the display unit 115.

If the ending SW 1057 in FIG. 3 is pressed at a timing in the middle of the 16-step rhythm pattern, the value of the pattern change standby flag PTF is 1, so that the first
The determination at SE19 in FIG. 4 is NO, and the process proceeds to SE20.

In SE20, among the main rhythm patterns of FIG. 22 stored in the pattern memory unit 106 of FIG. 1, the main rhythm pattern of the rhythm number corresponding to the value indicated by the rhythm number register RR is read from the rhythm counter of FIG. The step corresponding to the counter value RC of 103 is read. That is, until the value RC of the rhythm counter 103 in FIG. 1 is determined to be 15 in the next SE08, the process proceeds to SE06, and a rhythm sound is generated in the present rhythm pattern.

Then, the normal mode display progress processing of SA25 and SA14 are performed by the loop of SA10 → SA22 → SA25 → SA14 to SA21 in FIG.
When the value RC of the rhythm counter 103 becomes 15 in SE08 of FIG. 14,
That is, when the rhythm pattern to be sounded next has reached the final 15 steps, the determination is YES, and then the determination in SE09 is NO (the ACR value is 0 because it is a normal mode), and then in SE12. The value of the pattern change standby flag PTF is returned to 0, and the process proceeds to SE06, where the last step of the present rhythm pattern is sounded.

After this operation, SA10 → SA22 → SA25 → SA14 ~ SA in FIG.
When the normal mode display progress processing of SA22 and the rhythm reproduction processing of SA14 are started again after the loop of 21, the PTF is set to 0, so that the determination in SE19 of FIG. 14 becomes YES, and the subsequent 1
For six steps, a rhythm sound is produced in the ending rhythm pattern by the processing of SE19 → SE21 → SE22 → SE06.

On the other hand, regarding the image displayed on the display unit 115, when the ending SW 1057 is pressed, the determination of SF02 in FIG.
At S, "3" is set in SF15, so the determination of SJ06 in FIG. 19 is YES at this point, and the ending image display by the ending screen progress data is started.

Then, when the sound processing of the rhythm sound is repeated and the value of RC103 becomes 15, the judgment of SE22 becomes NO, and after the last step of the ending rhythm pattern is sounded in SE23, the automatic At the same time as the accompaniment operation ends, the image display ends.

When starting with the intro SW at the start of the rhythm sound-only playback operation, the SA10 → SA22 → SA25 → SA14 ~ SA21
When starting the normal mode progress processing of 25 and the rhythm reproduction processing of SA14, the performer switches the intro SW1053 of FIG.
The operation when the user presses to start the operation will be described. In this case, first, a rhythm sound for 16 steps is generated in the intro rhythm pattern, and then the operation shifts to a rhythm sound generation operation in the present rhythm pattern.

First, in the standby state by the processing loop of SA02 to SA07 in FIG. 10, if the player presses the intro SW1053 in FIG. 3, the determination of SA06 becomes YES, the process proceeds to SA08, and the value 2 is set in the pattern register PR. Then, it enters the mode of the introrhythm pattern. After that, start SW1054 (3rd
As in the case of pressing (FIG.), The determinations of SA10 and SA22 are NO, and the normal mode display progress processing of SA25 and the rhythm reproduction processing of SA14 are started.

In this case, the determination at SE02 in FIG. 14 becomes YES, and the flow proceeds to SE27. In SE27, among the introrhythm patterns of FIG. 22 stored in the pattern memory unit 106 of FIG. 1, the introrhythm pattern of the rhythm number corresponding to the value indicated by the rhythm number register RR is sequentially read from step 0.

Thereafter, until the value of RC103 in FIG. 1 is determined to be 15 in the next SE28, the process proceeds to SE06, and a rhythm sound is generated in an introrhythm pattern.

Based on the above operation, SA10 → SA22 → SA25 →
The rhythm reproduction process of SA14 is repeated by the loop of SA14 to SA21.

On the other hand, in FIG. 19, the determination of SJ01 is NO, the determination of SJ02 is YES (see SB11 in FIG. 11), and the determination of SJ03 is NO (since the intro is started), and the process proceeds to SJ05. And the SJ05
Is YES, the process proceeds to SJ15 and FIG. 7 (A)
The GC step of the rhythm # indicated by the rhythm number register RR is read in the normal mode intro screen progress data shown in FIG. Thereafter, by proceeding from SJ08 → SJ09 → SJ10 → SJ11 → SJ12, each step proceeds, and an image for each step is displayed on the display unit 115.

Then, at SE28 in FIG. 14, the rhythm counter 10
When the value RC of 3 becomes 15, that is, when the next rhythm pattern to be sounded is the last 15 steps, the determination in SE28 in FIG. 14 is YES, and the process proceeds to SE29. In SE29, the content of the pattern register PR is changed to 0, and preparation for shifting to the present rhythm pattern is made. After this processing, it is determined whether or not AFC = 1 (SE30). At this time, since the mode is the normal mode, this determination is NO, and therefore, the GC and GOC are set to “0”.
Is stored (SE31), and the process further proceeds to SE06 to sound the final step of the introrhythm pattern. Therefore,
When the automatic accompaniment of the introrhythm pattern ends, both GC and GCO are set to “0”.

After the above operation, SA10 → SA22 → SA25 → SSA14 ~ S in FIG.
After returning to the normal mode display processing of SA25 and the rhythm reproduction processing of SA14 again around the loop of A21, in SE29 of FIG. 14,
Since PR is set to 0, the determinations of SJ01, SJ05, and SJ06 in FIG. 19 are each NO, and the operation shifts to the display operation using the normal mode main pattern. Further, since PR is set to 0, the determination of SE01 to SE03 in FIG. 9 becomes NO, and the operation shifts to the sounding operation according to the rhythm pattern.

As described above, the player performs the third
By pressing the intro SW1053 in the figure, the effect of the intro can be easily added to the rhythm pattern, and a screen display for the intro can be obtained on the display unit 115.

When the stop switch is pressed during the playback operation of only the rhythm sound, the player proceeds to the process shown in FIG. 3 while the normal mode display progress processing and the rhythm playback processing of SA10 → SA22 → SA25 → SSA14 to SA21 are repeated. The operation when the stop SW 1055 is pressed will be described.

In this case, in various switching processes of SA21 in FIG.
The determination of SF03 in FIG. 15 is YES, and the process proceeds to SF20. And S
Since the determination of F20 is NO (the value of ACR is 0 in the normal mode), the process jumps from SF20 to the processing after SB03 via the path in FIG. 11 in SA01 in FIG. 10 and ends the automatic accompaniment. At the same time, the display operation of the display unit 115 ends.
The subsequent processing is performed by the ending SW 10 shown in FIG.
This is the same as pressing 57.

When the accompaniment key is pressed during the playback operation of the rhythm sound only, the loop SA10 → SA22 → SA25 → SSA14 ~ SA21
On the way rhythm reproduction of SA14 of A25 is repeated, the keyboard section 104 of FIG. 1 player, of FIG. 2 C ₂ .about.B
An operation when any of the accompaniment keys 1042 between ₃ NOs is pressed will be described.

In this case, key information KI shown in FIG. 4 corresponding to the pressed accompaniment key is input from keyboard section 104 to CPU 101 in FIG.

This input state is detected at SA22 in FIG. 10 while the rhythm sound is being generated, and the determination is YES.

As a result, first, the accompaniment flag BF is set to 1 in SA23, and the mode shifts to the accompaniment mode.

Subsequently, a code judge is performed at SA24. This is because the key information K is transmitted from the CPU 101 of FIG.
By passing I, the code judge unit 108
Determine the key code KC and octave code OC in KI,
This is a process of determining the root note and chord of the pressed key.

Next, after performing the normal mode display progress processing (SA2
5), it is determined whether BF = 1 (SA14), and since the determination in step SA23 is YES, the base sound reproduction process is performed in SA15. This processing is performed by the code judge unit 108 shown in FIG.
This is a process for performing an accompaniment with a bass sound at the pitch of the root tone determined in step. The same process as the rhythm reproduction process in SA14 is performed except that a pitch is specified. Accordingly, the details thereof are in accordance with the details of the rhythm reproduction process shown in FIG.

In this case, the pattern memory unit 106 shown in FIG.
A base pattern having the same configuration as that of the rhythm pattern shown in the figure is stored. That is, the base pattern is composed of four patterns, namely, a main pattern, a fill-in pattern, an intro pattern, and an ending pattern, and each pattern is composed of patterns of 16 steps for each rhythm of # 1 to # 6. FIG. 23 (C) shows a base pattern of each of the 16 steps shown in FIG. As shown in the figure, at the time of automatic accompaniment, it is possible to specify whether or not to produce one type of bass sound for each step by using a binary number of 0 or 1.

In conjunction with the above configuration, the base playback process of SA12 in FIG.
By performing in accordance with the rhythm reproduction process of SA17, the main base pattern, fill-in base pattern, and ending are synchronized with the reproduction process of the rhythm sound based on the main rhythm pattern, fill-in rhythm pattern, ending rhythm pattern, and intro rhythm pattern. A bass sound reproduction process based on the base pattern and the intro base pattern is performed. That is, the fill-in SW shown in FIG.
The operation at the time of reproducing the bass sound for the 1056, the ending SW 1057, the intro SW 1053, and the like is exactly the same as the case of reproducing the rhythm sound.

Although the bass sound (single sound) is produced by the accompaniment sound generator 110 in FIG. 1, the chord sound described later is also produced by the accompaniment sound generator 110. Can be generated in parallel by time division processing.

Next, a chord sound reproduction process is performed in SA16. This process
This is a process of performing a chord accompaniment with the chord determined by the chord judge unit 108 in FIG. 1, and performs the same process as the rhythm reproduction process in the SA 17 except that a chord is specified. Therefore, as in the case of the bass sound reproduction, the details thereof are in accordance with the details of the rhythm reproduction processing of FIG.

In this case, the pattern memory unit 106 shown in FIG.
A chord pattern having the same configuration as that of the rhythm pattern shown in the figure is stored. FIG. 23 (b) shows the
The code patterns for each of the 16 steps in the figure are shown. As shown in the figure, at the time of automatic accompaniment, it is possible to specify whether or not to generate one type of chord sound (3 to 4 sounds are simultaneously pronounced as chords) for each step by a binary number of 0 or 1. It is.

Along with the above configuration, the code reproduction process of SA16 in FIG.
By following the rhythm playback process of SA17, the present chord pattern, fill-in chord pattern, ending chord pattern, and ending chord pattern are synchronized with the rhythm sound reproduction process based on the main rhythm pattern, fill-in rhythm pattern, ending rhythm pattern, and intro rhythm pattern. A reproduction process of a chord sound based on the intro chord pattern is performed. That is, the operation of the chord sound reproduction for the fill-in SW 1056, the ending SW 1057, the intro SW 1053, and the like in FIG. 3 is exactly the same as the case of the reproduction of the rhythm sound.

The reproduction of the chord sound is performed by the accompaniment sound generation unit 110 shown in FIG. 1 as described above. In this case, since the chord sounds usually have three to four sounds, the plurality of sounds are generated in parallel by time division processing.

In the above bass and chord sound reproduction process,
Once the key information KI is input from the accompaniment key 1042 (FIG. 2) at SA22 in FIG. 10, the accompaniment flag BF is set to 1 at SA23.
Will be set to, so the next step will determine SF10
The result is YES, and the determination in SA11 is NO (the ACR value is 0 because of the normal mode), and the code judge is directly performed in SA24. Therefore, in the reproduction of the bass sound and the chord sound at each step by repeating the loop of SA10 to SA21, if there is no input of new key information KI, the sound is repeated with the same pitch and chord of the root note, and the player When the accompaniment key 1042 in FIG. 2 is newly pressed, the pitch and chord of the root note are changed accordingly.

As described above, when the player presses the accompaniment key 1042 in FIG. 2 during the reproduction of the rhythm sound, the rhythm sound, the bass sound, and the chord sound are reproduced while repeating an independent 16-step pattern. By pressing the accompaniment key 1042 one after another, automatic accompaniment can be performed while changing the pitch of the bass sound and the chord type of the chord sound at that timing.

At this time, the display unit 115 is performing the normal mode progress processing shown in FIG. 19, and the display progresses irrespective of the operation of the accompaniment key 1042.

<< Detailed Operation in Auto Chord Progression Mode >> Next, a detailed operation in the auto chord progression mode during automatic accompaniment will be described.

Auto chord progress mode processing First, when the player turns on the main body (not shown), in the standby state described in the normal mode, that is, in the repetitive operation of FIGS. Press the auto code progress SW1052 of SA05
Is YES, the process proceeds to SA09 auto code progress mode processing. This process is a process in a standby state before starting the auto chord progression operation.
Shown in the figure.

First, in SG01, a value 1 indicating an auto code progress mode is set in an auto code progress flag ACR.

In the next SG02, the LED above the auto chord progress switch 1052 in FIG. 3 is turned on to notify the player that the auto chord progress mode has been set.

Subsequently, in SG03, a value 1 indicating that accompaniment is being performed is set in the accompaniment flag BF. This is because in the auto chord progression mode, the accompaniment operation by the bass sound and the chord sound is always performed.

Further, in SG04, tempo data TD corresponding to the rhythm number currently specified by the rhythm number register RR is set in the tempo data register TR. Now, in the chord progression memory unit 107 in FIG. 1, tempo data TD is stored as a rhythm header corresponding to each of the rhythm numbers # 1 to # 6 as shown in FIG. Details of the tempo data TD are shown in FIG. As shown in the figure,
The tempo data TD is 5-bit binary data, which can designate a tempo from 0 to 31. By having the tempo data TD corresponding to each rhythm number, every time the player switches to the rhythm SW 1051 in FIG. 3, the tempo data TD corresponding to the selected rhythm number is stored in the chord progression memory in FIG. It is read from the rhythm header of the unit 107 and set in the tempo data register TR. This is because, for example, a rock has a fast tempo and a waltz has a relatively slow tempo, so that an optimal tempo is automatically set when the rhythm is switched.

Further, initial display processing is performed in SG05, and the contents thereof are as already described with reference to FIG.

After the above-described processing of SG01 to SG05, an input waiting state of each switch is entered by repeating SG06 to SG12. That is, in the auto chord progression mode, the performer determines the start SW1054 and the rhythm shown in FIG. 3 by the respective determination processes of SG07, SG08 and SG09.
Pressing either SW1051 or intro SW1053 starts the auto chord progress mode. Each of these will be described later.

In this case, the SG06 is operated by the player while the auto chord progress mode is on standby.
1059 is a process for arbitrarily changing the tempo when the automatic accompaniment is to be performed, and is the same as the tempo process of SA02 in FIG. 10 during normal mode standby (see FIG. 12).

SG12 is a process for exiting from the auto chord progression mode and returning to the initial state again when the player presses the auto chord progression SW 1052 in FIG. 3 again while waiting in the auto chord progression mode. That is, when the auto chord progress SW 1052 is pressed, the determination of SG12 becomes YES,
As a result, the value of the auto code progress flag ACF is returned to 0 at SG13 to return to the normal mode, and the LED above the auto code progress SW 1052 in FIG. 3 is turned off at SG14. After these operations, the SG14 to the first in SA01 of FIG.
The process jumps to the process after SB03 via the route shown in FIG. 1 and ends the automatic accompaniment. The subsequent processing is the same as the processing at the end of the automatic accompaniment when the player presses the ending SW 1057 in FIG. 3 in the normal mode.

Auto-Chord Progression Processing While waiting in the auto-chord progression mode of SG06 to SG12 in FIG. 16, the player switches the start SW1054 or the rhythm SW1051 in FIG.
When one of the keys is pressed, the process enters the auto chord progress processing. When the intro SW1053 is pressed,
It will be described later.

First, when the start SW 1054 is pressed, the determination of SG08 is YES, the auto code progress mode process of SA09 in FIG. 10 is ended, and the process proceeds to the auto code progress process of SA12.

If any of the rhythm SW1051 is pressed, the SG
The determination at 09 is YES, and the process proceeds to SG10. The SG10 sets the value corresponding to the rhythm number of the pressed rhythm SW1051 in the rhythm number register RR to switch the rhythm. In the next SG11, the tempo data TD corresponding to the rhythm number set in the rhythm number register RR is set in the tempo data register TR, similarly to the operation of the SG04. After these processes, the auto code progress mode process of SA12 in FIG. 10 ends, and the process proceeds to SA12 auto code progress process.

As described above, the start SW1054 or the rhythm SW1051
Is pressed to enter the auto code advance processing of SA12 in FIG. 10, and thereafter, every time the value RC of the rhythm counter 103 is counted up by the timer clock from the timer clock generator 102 in FIG. , Figure 10 S
The processing of A10 to SA21 is repeated. In this case, the judgment of SA10 is YES because the accompaniment flag BF is set to 1 in SG03 of FIG. 16, and the judgment of SA11 is also SG01 in FIG.
YES because the auto code progress flag ACR is set to 1
Becomes Therefore, in the auto code progress processing, SA10 → SA
The loop processing of 11 → SA12 → SA13 → SA14 to SA21 → SA10 is repeated. Hereinafter, this processing will be described.

First, in the loop of SA10 to SA21, the rhythm reproduction process of SA17 is exactly the same as the rhythm reproduction process in the normal mode, and the rhythm sound is repeated in a 16-step rhythm pattern. In addition, the base playback processing of SA15 and
The chord reproduction process of SA16 is the same as the operation when the player presses the accompaniment key 1042 in FIG. 2 in the normal mode. Is repeated. That is, for example, a rhythm sound having the same rhythm pattern, a base sound having the same base pattern, and a chord sound having the same chord pattern are repeated every bar. Note that the rhythm pattern, the base pattern, and the chord pattern are independent patterns.

In the above operation, the pitch at the time of the bass reproduction processing and the chord type at the time of the chord reproduction processing were specified by the player in the normal mode by sequentially specifying the accompaniment key 1042 in FIG. In the mode, their designation is automatically performed over a plurality of measures, which is a great feature that the burden on the player is significantly reduced.

In order to realize the above operation, the chord progression memory unit 107 connected to the CPU 101 in FIG. 1 stores chord progression data having a configuration as shown in FIG. As shown in the figure, the chord progression data consists of four types of chord progressions: main chord progression, fill-in chord progression, intro chord progression, and ending chord progression. 0 to 31 for each rhythm
It consists of chord progression data of 32 steps.

FIG. 26 shows chord progression data for each of the 32 steps in FIG. The scale data OTD specifies a scale name such as A or F using 4-bit binary data. Code name data CD
Specifies a minor (m), a major (M), a seventh (7th), and the like using 4-bit binary data. Therefore, the chord type for each step is determined by the scale data OTD and the chord name data CD. The duration data OD is
The 4-bit binary data specifies how long each chord is to be sounded. The minimum unit is one step of a rhythm pattern or the like, which corresponds to a sixteenth note, an eighth note ‥‥‥, or the like. Then, the duration data OD for each step is
As described later, the value is subtracted during sound generation, and when the value becomes 0, the process proceeds to the next step. It should be noted that, as shown in FIG. 26 (shown in the third step in FIG. 26), the sound length data OD of an appropriate step out of the 31st step is “111” indicating the end.
It contains data of 1 "(" F "in hexadecimal notation), and a code type with an arbitrary step length can be specified by steps other than this step.

In this case, the concept of the steps in FIG. 24 or FIG. 26 is different from the steps of the rhythm pattern, the base pattern, the chord pattern, and the like in FIG. 22 or FIG. That is, one step of the chord progression data corresponds to a plurality of steps such as a rhythm pattern defined by the duration data OD as described above. Hereinafter, in order to distinguish them, a step of a rhythm pattern or the like is called a pattern step, and a step of chord progression data is called a code step. Therefore, while the base pattern and the chord pattern repeat 16 pattern steps for each bar, the chord progression data defining the base interval and chord type at that time are, for example, the chord of the 0th chord step is C, and the pitch is chord length. 8, the code of the first chord step is Am, the duration is 8, the code of the second chord step is F, the duration is 8,
If the code of the third chord step is G ₇ , the duration is 4, the code of the fourth chord step is C, and the duration is 4, ‥‥‥,
The first eight pattern steps in the first bar are C code, the next eight pattern steps are Am code, the first eight pattern steps in the second bar are F code, and the next four pattern steps are
G ₇ code, last 4 pattern steps are C code, ‥‥
While the chord is designated as ‥, the automatic accompaniment in the auto chord progress mode proceeds. The designation of the bass interval is, for example, the root tone (first tone) of each chord.
Specified by

FIG. 17 shows details of SA12 in FIG. 10 for realizing the above-mentioned code designation operation.

First, the judgment of SH01 is made because the sound length counter OC is initially set to 0 in the initial processing of SA01 in FIG.
(FIG. SB09) At first, the determination is YES.

Next, whether the value of the progress register SR is 1, 2, or 3 in SH02, SH03, and SH04, that is, whether the chord progression to be automatically accompanied is a fill-in chord progression, an intro chord progression, or an ending chord progression Is determined. The performer starts the start SW1054 or the rhythm SW1051 shown in FIG.
In the state where is pressed, the register is initialized to 0 in the initial processing of SA01 in FIG. 10 (SB06 in FIG. 11).
Initially, this code progresses, and all judgments of SH02 to SH04 are NO
And the process proceeds to SH05.

In SH05, from the main chord progression data of FIG. 24 stored in the chord progression memory unit 107 of FIG. 1, the counter value of the chord counter CC is obtained from the main chord progression data corresponding to the rhythm number indicated by the rhythm number register RR. The process of reading the code step indicated by is performed. Now, the value of the code counter CC becomes 0 in the initial processing shown in FIG. 10 SA01.
(SB10 in FIG. 11), so that the
The code progress data of the code step is read.

Next, until the last step, the determination of SH06 is NO, and the process proceeds to SH09. Here, first, the tone length data OD (see FIG. 113) of the 0th chord step is set in the tone length counter OC, and in the next SH10, the scale data of the 0th chord step is set.
OTD is set in the scale code register OTCR, and in SH11, the code name data CD is set in the code name register CCR. Thus, the designation of the code type corresponding to the 0th code step is completed.

After the above processing, the count value of the code counter CC is incremented by 1 in SH12, and the count value of the sound duration counter OC is incremented by-in SH13.
Then, in the next SH13, the auto code progress processing of FIG. 10 SA12 is completed.

In SA13 following SA12, an auto code progress display progress process is performed, and details thereof are shown in FIG. That is,
In SK01, it is determined whether or not the value of the screen sound length counter GOC is "0", and if this determination is YES, it is determined whether or not the sound length data GOD is "F". If this determination is YES, "0" is set to the screen counter GC (SK03), then SR = 1 or not (SK04), SR = 2 or not (SK05), SR = 3 or not (SK05) SK
06) is determined. If all the determinations of SK04 to SK06 are NO, it means that the pattern is the main pattern, so the GC step of the rhythm # indicated by RR in the auto-chord progression main pattern screen progress data is read (SK07). Thereafter, the processing of SK09 to SK12 is the same as the processing of SJ08 to SJ12 in FIG. 19 described above.

The case where the determination of SK04, SK05, and SK06 is YES will be described later.

After the above processing, it is determined at SA14 whether or not BF = 1, and if this determination is YES, bass reproduction processing is performed at SA15, but the scale at this time is set in the scale code register OTCR. Scale data OTD of the 0th chord step
Is specified.

Further, a code reproduction process is performed in SA16. At this time, the code type is the scale data OTD of the 0th code step set in the scale code register OTCR and the code name data CD set in the code name register CCR. Specified based on

In addition to the above-mentioned base playback process and code playback process,
By performing the rhythm reproduction process in SA17 in FIG.
Automatic accompaniment for the pattern steps is completed.

Thereafter, the timer clock is input from the timer clock generator 102 in FIG. 1 by repeating SA18, and the first clock is input in SA19.
RC103 in the figure is counted up. And SA20, SA21
After the above processing (described above), each judgment of SA10 and SA11 is YE
At S, the SA12 auto code progress processing is performed again.
In this case, in SH01 of FIG. 17, since the sound length data OD of the 0th code step was previously set in the sound length counter OC, the determination of SH01 is NO until the value becomes 0. In this case, only the process of decrementing the counter value of the tone length counter OC by -1 is performed in SH14, and the auto chord progression process of SA12 in FIG. Therefore, the base playback process of SA15 in FIG.
In the 16 chord reproduction process, the same scale and chord type as in the previous pattern step are specified.

The same applies to SJ01 in FIG. 20.Since the screen sound length data GOD of the 0th step was previously set in the screen sound length counter GOC, the judgment of SJ02 is continued until the value becomes 0.
NO. Therefore, in this case, the screen sound length counter GO
Only the process of decrementing the value of C by one is performed, and the auto code progress display progress process of SA13 in FIG. 10 ends.

The above state is maintained until the value of the duration counter OC is subtracted to 0, that is, the duration data of the 0th code step.
This is repeated until the pattern steps for OD are repeated, and until the screen sound length counter becomes 0, so that the same image is continuously displayed on the display unit 115 during that time.

When the value of the sound length counter OC is determined to be 0 in SH01 of FIG. 17, after the determination of SH02 to SH04 becomes YES, the SH05 is determined.
Performs a process of reading a code step indicated by the counter value of the code counter CC from the chord progression data corresponding to the rhythm number indicated by the rhythm number register RR. Now, since the code counter CC is incremented by 1 in SH12 at the beginning of the reading of the 0th step, the code counter CC indicates a value of 1. Therefore, here, the code progress data of the first code step is read. Similarly to the 0th code step, the contents of the tone length counter OC, scale code register OTCR, and code name register CCR are set to the contents corresponding to the chord progression data of the first code step in SH09 to SH11, and the code is executed in SH12. The value of the counter CC is incremented by one, the value of the tone length counter OC is decremented by one in SH14, and the automatic chord progression processing in SA12 in FIG. 10 is completed.

By the above processing, the base reproduction processing of SA15 in FIG. 10 and
In the chord reproduction process of SA16, the scale and chord type are specified based on the scale data OTD and the chord name data CD of the first chord step, and this state is maintained until the pattern steps corresponding to the duration data OD of the first step are repeated. Continue.

The above operation is repeated while sequentially reading out each chord step of the present chord progression data, and when the last chord step of the present chord progression data is read out in FIG. Since it is "F" in hexadecimal notation, the determination of SH06 is YES. As a result, the code counter CC is reset to 0 in the next SH07, the code progression data of the 0th code step is read out again in SH08, and the processing from SH09 is repeated.

Therefore, when the present code progress data is read and reaches the last code step, this code step is not read, and the process returns to the 0th code step and repeats the same code progress.

On the other hand, the value of the screen sound length counter GCO is 0 in SK01 in FIG.
If DOD = 0, the process proceeds to SK02 (SK0
2) After setting GC to 0, otherwise directly SK0
After the determination of 4 to SK06 is NO, in SK07, among the main chord progression data corresponding to the rhythm # indicated by the rhythm number register RR in the auto chord progression main pattern screen progression data, the counter value of the screen counter GC is determined. A process for reading the indicated code step is performed. Now, screen counter GC
Indicates the value 1 since it is incremented by 1 in SK11 at the beginning of the reading of the 0th step. Therefore, here, the screen progress data of the first step is read. Then, as in the 0th code step, the contents of the screen sound length counter GOC and the screen number register GNR are set to the contents corresponding to the screen progress data of the first step in SK08 to SK12, and the GNR in the screen memory unit 13 is set. Is read, and transferred and displayed on the display unit 115 (SK09). Then, at SK11, the value of the screen counter GC is incremented by 1, and at SH12, the screen sound length counter GO
The value of C is decremented by one, and the auto code advance processing of SA13 in FIG. 10 ends.

By the above processing, the base reproduction processing of SA15 in FIG. 10 and
In the code reproduction process of SA16, the scale and chord type are designated based on the scale data OTD and the chord data CD of the first chord step, and this state is maintained until the pattern steps for the duration data OD of the first step are repeated. Continue.

The above operation is repeated while sequentially reading out each chord step of the present chord progression data, and when the last chord step of the present chord progression data is read out in FIG. Since it is "F" in hexadecimal notation, the determination of SH06 is YES. As a result, the code counter CC is reset to 0 in the next SH07, the code progression data of the 0th code step is read out again in SH08, and the processing from SH09 is repeated.

Therefore, when the present code progress data is read and reaches the last code step, this code step is not read, and the process returns to the 0th code step and repeats the same code progress.

In FIG. 20, SK08, when the step of GOD = F is read out in the screen progression data for chord progression, SK02
Is YES. As a result, the screen counter GC is reset to 0 in the next SK03, the screen progress data in the 0th step is read out again in SK07, and the processing from SK08 onward is repeated.

When tempo or rhythm is changed during auto chord progression processing During the above auto chord progression processing, the player
By operating the tempo-up SW 1058 or the tempo-down SW 1059 in the figure, the tempo data register is set in SA20 in FIG.
You can change the value of TR. This processing is exactly the same as the tempo processing of SA02, and is shown in FIG.

Next, an operation when the rhythm is switched during the auto chord progress processing will be described. This processing conforms to the processing when the rhythm is switched during the reproduction operation of only the rhythm sound. However, in the auto chord progress mode, as described above, the chord progress memory unit 10 shown in FIG.
A rhythm header as shown in FIG. 24 is stored in FIG. 7, and when the rhythm is switched, the tempo data is also switched correspondingly. Therefore, it is necessary to add this processing.

That is, first, if the determination of SF07 in FIG. 15 is YES, that is, if the rhythm is switched at a timing that is just a good break of the 16-step rhythm pattern, the determination of SF08 is NO in the normal mode, Although the pattern change standby flag PTF was set to 0 in SF11, the determination of SF08 is YES and the determination of SF09 is NO during auto chord progression processing (the value of the pattern register PR is Therefore, the process proceeds to SF10. Here, similar to the operation of SG04 in FIG. 16, SF10 in FIG.
The tempo data TD corresponding to the rhythm number set in the rhythm number register RR
Set to TR. After this process, the pattern change standby flag is set in SF11 as in the normal mode.
The PTF is set to 0, and the various switching processes in FIG. 10 are completed.

On the other hand, when the rhythm is switched in the middle of the 16-step rhythm pattern, in the normal mode, SE04 → SE07 → FIG.
By executing the processing from SE08 to SE06, after the sound is generated in the main rhythm pattern before the rhythm is switched, when the timing of the break is good, the determination of SE09 in FIG. 14 becomes YES, and the determination of SE10 is further performed. Although the answer was NO, the pattern change standby flag PTF was set to 0 in SE12 to switch the rhythm, but at the time of the auto chord progression processing, the determination in SE08 in FIG. Thereafter, the determination in SE09 is YES. Furthermore, the judgment of SE10 is NO
(Because the PR value is currently 0), go to SE11 to
Similarly to the operation of SG04 in the figure, tempo data TD corresponding to the rhythm number set in the rhythm number register RR in SF06 in FIG. 15 is set in the tempo data register. Then, in SE12, 0 is set to the pattern change waiting flag PTF.

As described above, when the rhythm is switched, the content of the tempo data register TR is switched to a new value, and thereafter, the timing at which the timer clock is input in SA18 in FIG. 10 is determined according to the content of this register, First in SA20
The speed at which the RC103 in the figure is counted up is determined.

In the case where the rhythm is switched in the middle of the 16-step main rhythm pattern, in the rhythm reproduction process of FIG. The rhythm is switched so that the actual bass pattern in the bass playback process of SA15 and the actual chord pattern in the chord playback process of SA16 are the same. When switching, SH05 in Fig. 17
The operation immediately switches to the chord progression data corresponding to the new rhythm number indicated by the rhythm number register RR. The same applies to the main chord screen progress data in the auto chord progress display progress processing of SA13. When the rhythm is switched, this chord screen corresponding to the new rhythm # indicated by the rhythm number register RR is immediately indicated by SK07 in FIG. It operates to switch to the progress data.

When the fill-in SW is pressed during the auto-chord progress processing, the player presses the fill-in SW 1056 in FIG. 3 while the automatic accompaniment in the auto-chord progress mode is repeated by the loop of SA10 to SA21 in FIG. The operation in the case of the above will be described.

In this case, in the rhythm reproduction process of FIG.
As in the case of the normal mode, Fig. 14 SE01 → SE13 → SE
14 → SE06 is repeated to fill in
When SW1056 is pressed, the rhythm pattern immediately changes to a fill-in rhythm pattern. SA15 base playback processing and
The same applies to the base pattern and the code pattern in the code reproduction process of SA16.

On the other hand, in the auto code progression processing of SA12, the progress register
The content of SR does not change, and indicates the value 0, that is, the progress of this code. Then, the rhythm reproduction process shown in FIG. 14 (SA1 in FIG. 10)
In 7), the contents of the SR remain 0 until the pattern step of the fill-in rhythm pattern reaches the final 15th pattern step and the determination of SE14 becomes YES, so that the 17th pattern step is performed.
The processing state in the figure does not change, and the chord progression is maintained.

In the rhythm reproduction process of FIG. 14, when the pattern step of the fill-in rhythm pattern is the final fifteenth step and the determination of SE14 is YES, the pattern register PR is set to 0 in SE15 and returns to the main rhythm pattern. . On the other hand, since the progress register SR is set to 1 in SE16, the code progress data becomes fill-in code progress. In SE17 and SE18, the code counter CC and the pitch counter OC, and the screen counter GC and the screen pitch counter GOC
Is forcibly set to 0. At this time, in the base reproduction processing of SA15 in FIG. 10 and the code reproduction processing of SA16, the base pattern and the code pattern have also returned to this pattern.

As a result, the determination of SH01 in FIG.
The determination at H02 becomes YES, and the process proceeds to SH15. Here, in the fill-in chord progression data corresponding to the rhythm number indicated by the rhythm number register RR, the code step indicated by the counter value of the code counter CC, that is, the 0th step
Performs processing to read code steps. After this, SH17
The process proceeds from SH09 to SH10 to SH11 to SH12 to SH14, and the 0th code step of the fill-in code progress data is set.

Hereinafter, the operation is exactly the same as that of the present chord progression data. In the base reproduction processing of SA15 and the chord reproduction processing of SA16 in FIG.
Chord scale data OTD and chord name data CD
Specifies the scale and chord type, and this state continues until the pattern steps for the duration data OD of the 0th step are repeated.

Then, when the value of the tone length counter OC is determined to be 0 in SH10 of FIG. 17, the process proceeds again to SH01 → SH02 → SH15, and the next first step fill-in chord progression data is read out. A pronunciation process is performed.

The above operation is repeated while sequentially reading each code step of the fill-in code progress data, and FIG.
When the last chord step of the fill-in chord progression data is read out,
Is "F" in hexadecimal notation, so the determination of SH17 is YE
Becomes S. As a result, the progress register SR becomes 0 at the next SH17.
And returns to the chord progress mode. Then, at SH19, the code counter CC is reset to 0, and at SH05, the chord progression data of the 0th code step of the chord progression is read, and thereafter, the chord progression proceeds.

In the auto code progress display progress processing of SA13, the counter values of the screen counter GC and the screen sound length counter GOC are forcibly set to 0 in SE18 as described above. As a result, the determination of SK01 in FIG.
Is NO, SK04 is YES and SK14
Proceed to. Then, here, the step of the screen counter GC of the rhythm # indicated by the rhythm number register RR in the auto chord progression fill-in screen progress data is read. Thereafter, the process proceeds in the order of SK08 → SK09 → SK10 → SK11 → SK12.

Then, if the value of the screen sound length counter GOC is determined to be 0 in SK01 in FIG. 20, the process proceeds again from SH01 to SK12 to SH15, and the next first step auto-code progress fill-in screen progress data is read out. The transfer display is performed on the display unit 115 based on this.

The above operation is repeated while sequentially reading each screen step of the auto chord progression fill-in screen progression data, and in FIG. 20 SK14, the screen in which the screen sound length data GOD of the auto chord progression fill-in screen progression data is "F" When the step is read, the determination of SK02 is YES. Thereby, the screen counter GC is returned to 0 in the next SK03, and the processing from SK04 is subsequently repeated.

When the ending SW is pressed during the auto chord progression processing, the player presses the ending SW 1057 in FIG. 3 while the automatic accompaniment in the auto chord progress mode is repeated by the loop of SA10 to SA21 in FIG. The operation in the case of the above will be described.

First, when the ending SW 1057 is pressed at a timing at which the present rhythm pattern of 16 code steps is just a good break, in the various switching processes in FIG.
15 The process proceeds from SF02 to SF15 to set a value of 3 in the pattern register PR, and further proceeds from SF07 to SF08 to SF09 to SF11 to reset the counter values of the tone length counter OC and the code counter CC to 0, The value 3 is set in the progress register SR. Then, the process proceeds to SF11, where 0 is set to the pattern change waiting flag PTF. By the above operation, SA1 in Fig. 10
In the rhythm reproduction process of FIG. 7, since the value of the pattern change standby flag PTF is 0, as in the case of the normal mode, the process proceeds in the order of FIG. 14 SE03 → SE19 → SE24, and the ending rhythm pattern is sequentially changed from pattern step 0. Is read. The same applies to the base pattern and the code pattern in the base reproduction process of SA15 and the code reproduction process of SA16 in FIG.

On the other hand, in the auto code progress processing of SA12, in FIG. 17, the processing advances from SH01 to SH02 to SH03 to SH04, the determination of SH04 becomes YES, and the processing advances to SH13. Here, among the ending chord progression data of FIG. 24 stored in the chord progression memory unit 107 of FIG.
The code step indicated by the counter value of the code counter CC, that is, the 0th code step is read from the ending chord progress data corresponding to the rhythm number indicated by. And after this, SH09 → SH10 → SH11 → SH12
The process proceeds to SH14 to set the 0th code step of the ending code progress data and the like.

Hereinafter, the operation is exactly the same as that of the present chord progression data. In the bass reproduction processing of SA15 and the chord reproduction processing of SA116 in FIG. 10, sound is generated in the scale / chord type based on the ending chord progression data.

On the other hand, in FIG. 20, when GCO = 0, S
The processing of K02 and thereafter is executed, and the determination of SK06 is YES.
Therefore, the process proceeds to SK13 to read the step indicated by the screen counter GC of the rhythm # indicated by the rhythm number register RR in the ending screen progress data for the auto chord progression (SK1).
3). After that, SK08 → SK09 → SK1
Go from 0 to SK11 to SK12 and display the ending screen while increasing the value of the screen counter GC.

On the other hand, if the ending SW 1057 in FIG. 3 is pressed at a timing during the main rhythm pattern of 16 chord steps, in the various switching processes in FIG.
Proceeding with SF15, the value 3 is set in the pattern register PR,
At this time, since the value of the rhythm counter 103 is not 0, the process proceeds to SF16 to set the pattern change standby flag PTF to 1
Is set.

By the above operation, in the rhythm reproduction process of FIG. 10 SA17, the value of the pattern change standby flag PTF is 1, so that SE03 → SE19 → SE as in the normal mode.
Proceeding to step 20, reads out the steps of this rhythm pattern.
The same applies to the base pattern and the code pattern in the base reproduction process of SA15 and the code reproduction process of SA16 in FIG.

On the other hand, in the auto code progression processing of SA12, the value of the progress register SR still indicates the main code progression with the value 0, so that the reading of the main code progression data described above is continued. Therefore, in the bass reproduction process of SA15 and the chord reproduction process of SA16 in FIG. 10, the scale and chord type are designated by the scale data OTD and the chord name data CD of each chord step based on the chord progression data, and sound is generated.

Then, the automatic accompaniment process by the loop of SA10 to SA21 in FIG. 10 is repeated, and when the value of the rhythm counter 103 in FIG. 1 becomes 15 in SE08 in FIG. 14, the determination becomes YES, and SE08 → SE09. And proceed. And the pattern register PR
Is 3 in Fig.10 SF12, so the judgment of SE10 is
YES, proceed from SE24 → SE25 → SE26, progress register SR
Is set to 3 and the sound length counter OC and the code counter CC, and the screen counter GC and the screen sound length counter GO
The counter value of C is reset to 0. Then, the process proceeds to SE12, where 0 is set to the pattern change waiting flag PTF.

After the above process, in the rhythm reproduction process of FIG. 10 SA17, the value of the pattern change standby flag PTF has become 0, so that the ending rhythm pattern is sequentially read in the order of SE03 → SE19 → 21, and FIG. The same applies to the base pattern and code pattern in the base reproduction process of SA15 and the code reproduction process of SA16. Further, in the auto code progress processing of SA12, in FIG. 17, SH01 → SH02 → SH03 →
Proceeding to SH04, the determination of SH04 becomes YES, proceeding to SH13, read out the ending code progress data, SA15 of FIG.
In the bass reproduction process and the chord reproduction process of SA16, the sound is generated in the scale / chord type based on the ending chord progression data.

Then, the automatic accompaniment process is repeated by the loop of SA10 to SA21 in FIG. 10, and the value of the rhythm counter 103 in FIG.
When it becomes 5, that is, when the rhythm pattern to be sounded next has the last 15 steps, the determination in SE22 is NO, and the last step of the ending rhythm pattern is sounded in SE23.

After this operation, the process jumps from SE23 to the process of SF20 via the paths of FIG. 15 in the various switching processes of SA21 of FIG. The ending chord progression is forcibly terminated with the end of the ending rhythm pattern. And
Since the determination in SF17 in FIG. 10 is YES (the ACR value is 1 in the auto code progress mode), various flags, counters and registers are reset in SF21 to SF28, and thereafter, in FIG. The process jumps to the processing after SG06 via the path of, and the automatic accompaniment ends. After this processing, SG05-SG
The process of step 12 is repeated, and the process waits until one of the start switch 1054, the intro switch 1053, and the rhythm switch 1051 in FIG. 3 is pressed. Note that the initial settings of the rhythm number register RR and tempo data register TR are not performed.
When 1054 or the like is pressed, automatic accompaniment starts at the rhythm number and tempo up to now. In FIG. 16, since the auto chord progress mode is on standby, the auto chord progress flag ACR and the accompaniment flag BF remain unchanged.

On the other hand, in the auto code progress display progress processing of SA13 in FIG. 10, when SK06 in FIG. 20 is YES, that is, when 3 is set to SR, the SK13 auto code progress ending screen progress data includes Rhythm number register
It starts from the step of the screen counter GC of the rhythm # indicated by RR. That is, when SF07, SF08, and SF09 in FIG. 15 become YES and the processing of SF12 to SF14 is completed, the display of the ending screen is started, thereby synchronizing with the start of the ending automatic accompaniment. To display the ending screen.

Also, both the ending code progressing screen progress data shown in FIG. 7 (B) and the ending code shown in FIG. 24 are composed of 0 to 31 steps and have the same data length. The automatic accompaniment of the ending and the start and end points of the display are synchronized, so that an image can be displayed in accordance with the automatic accompaniment.

In the case of starting with the intro SW at the time of the start of the auto code progress processing When the auto code progress processing of SA12 in FIG. 10 is started by the loop of SG06 to SG12 in FIG. 16 of the auto code progress mode processing in SA09 in FIG. Next, the operation when the player presses the intro SW1053 in FIG. 3 to start it will be described.

In this case, first, the determination of SG07 in FIG.
The process proceeds from G15 to SG16, the value 2 is set in the pattern register PR and the progress register SR, and the mode becomes the introrhythm pattern mode. After that, start SW1054 (Fig. 3)
The process proceeds to the auto chord progression processing in FIG. 10 SA12 in the same manner as when is pressed.

Hereinafter, the loop of SA10 to SA21 in FIG. 10 repeats the automatic accompaniment in the auto chord progress mode.
In the rhythm reproduction process of No. 17, as in the case of the normal mode, the process of SE02 → SE27 → SE28 → SE06 in FIG. 14 is repeated, so that the automatic accompaniment starts in the introrhythm pattern. Then, the automatic accompaniment in the intro pattern is repeated for 16 pattern steps, and when the value CR of the rhythm counter 103 (FIG. 1) becomes 15, the judgment of SE28 is YES.
In SE29, the pattern register PR is set to 0. Thereafter, it is determined whether or not AFC is 1 in SE30. If the AFC is 1 in the auto chord progress mode, the final intro rhythm pattern is sounded in SE06, and then the operation shifts to the main rhythm pattern. . The same applies to the base pattern and the code pattern in the base reproduction process of SA15 and the code reproduction process of SA16 in FIG.

Next, in the auto chord progression processing of SA12, the value of the progress register SR becomes 2 by pressing the intro SW1053, and the value of the tone length counter OC is 0 at the start, as described above. The determination of SH01 in Fig. 17
After YES, SH02 is NO, SH03 is Y
Become ES and proceed to SH16. Then, here, a process of reading the code step indicated by the counter value of the code counter CC, that is, the 0th code step, from the intro chord progress data corresponding to the rhythm # indicated by the rhythm number register RR in the intro chord progress data. Thereafter, the process proceeds from SH17 to SH09 to SH10 to SH11 to SH12 to SH14, and the 0th code step of the intro code progress data is set.

Hereinafter, the operation is exactly the same as that of the present chord progression data. In the bass reproduction processing of SA15 and the chord reproduction processing of SA16 in FIG. The scale and chord type are specified by CD, and this state is 0th.
The process continues until the pattern steps corresponding to the tone length data OD of the step are repeated.

Then, when the value of the tone length counter OC is determined to be 0 in SH01 of FIG. 17, the process proceeds again to SH01 → SH02 → SH03 → SH16, and the next intro chord progression data of the first step is read out. A sound generation process is performed based on the sound generation process.

The above operation is repeated while sequentially reading each code step of the intro code progress data, and in FIG. 17 SH17,
When the last chord step of the intro chord progression data is read, since the tone length data OD (see FIG. 26) is "F" in hexadecimal notation, the determination of SH17 is YES.
As a result, the progress register SR is returned to 0 at the next SH18,
Move to this chord progress mode. Then, the code counter CC is reset to 0 in SH19, and the screen counter GC and the screen sound length counter GCO are reset to 0 in SH20.
In step 5, the chord progression data of the 0th code step of the chord progression is read, and thereafter, the chord progression is performed.

On the other hand, in FIG. 20, GCO = 0 at this start time.
, The processing after SK02 is executed, and
The determination of SK05 is YES. Therefore, the process proceeds to SK15, and reads the step indicated by the screen counter GC of the rhythm # indicated by the rhythm number register RR in the intro screen progression data for auto chord progression (SK13). After that, the process proceeds in the same manner as described above in the order of SK08 → SK09 → SK10 → SK11 → SK12, and the screen counter
Display the intro screen while increasing the GC value.

At this time, as illustrated in FIG. 29, assuming that the screen number data GD of steps 0 and 1 are both # 6 and the screen sound length data GOD is 8 both,
The total note length of 1 and 1 corresponds to one measure (GOD = 1 is a sixteenth note length). Therefore, as shown in FIG. 30, an image of # 6 is continuously displayed in one bar. Also, in steps 2 to 5 in FIG. 29, since the screen number data GD is both # 7 and the screen sound length data GOD is both 8, the total sound length in steps 2 to 4 is 2 Equivalent to a bar. Therefore, as shown in FIG. 30, the screen of # 7 is continuously displayed in the second and third measures.

In FIG. 30, the initial screen # 2 is displayed before the point at which the intro switch indicated by the dotted line is pressed.

When the stop switch is pressed during the auto chord progression processing The player presses the stop SW 1055 in FIG. 3 while the automatic accompaniment in the auto chord progress mode is repeated by the loop of SA10 to SA21 in FIG. The operation in the case of the above will be described.

In this case, in various switching processes of SA21 in FIG.
15 The determination in SF03 in FIG. 15 becomes YES, and the process proceeds to SF20. And SF2
Since the judgment of 0 is YES (in the auto chord progress mode,
The ACF value is 1), the process proceeds to SF21, and the processes from SF21 to SF28 are performed. Thereafter, the automatic accompaniment is performed in the same manner as the automatic accompaniment ending process when the ending SW 1057 (FIG. 3) is pressed. To end.

At this time, the screen sound length counter GCO and the screen counter G
After C is reset to 0, it stops in a standby state in which it enters a loop of SG06 to SG12 from FIG. 16 and ends the display.

〔The invention's effect〕

As described above, according to the present invention, as data relating to a moving image displayed by the display unit, the screen data storage unit stores individual screen data constituting the moving image, and the screen progress data storage unit stores the screen data of the screen data. Screen progress data, which is data related to a combination, is stored. Therefore, with a much smaller storage capacity than having the data of the moving image to be displayed for each accompaniment pattern or chord progression data, the moving images corresponding to the plurality of accompaniment patterns are changed according to the accompaniment pattern or the chord progression data,
This makes it possible to obtain a visual sense of play.

Further, since the screen progress data includes a plurality of types of time data, the moving image displayed on the display means can be changed with complicated timing, and even if the storage capacity is small, the moving image is visually recognized. A sufficient playing feeling can be obtained.

Also, since the minimum read timing of the accompaniment pattern or chord progression data and the screen progression data is the same, both can be matched rhythmically, and thereby the rhythm timing of the accompaniment can be immediately played visually. Can be perceived by others.

Also, by displaying a moving image corresponding to the accompaniment pattern or the chord progression data, it is possible to visually learn the form of the accompaniment pattern or the chord progression data.

Also, by providing external operation means for instructing the first and third read start timings and the second and fourth read start timings, a user of this automatic accompaniment apparatus can automatically play an automatic accompaniment and a moving image representing the same. Optionally, they can be started simultaneously.

Further, since the specific screen is displayed in the standby state, it is possible to use the specific screen in the standby state to display and provide the user with information effective in performing the music. Become.

[Brief description of the drawings]

1 is a configuration diagram of an embodiment of the present invention, FIG. 2 is an external configuration diagram of a keyboard unit, FIG. 3 is an external configuration diagram of a switch unit, FIG. 4 is a data configuration diagram of key information, FIG. 5 is an explanatory diagram of a display unit, FIG. 6 is a configuration diagram of a screen memory unit, FIG. 7 (A) is a configuration diagram of normal mode screen progress data, and FIG. FIG. 7 (C) is a configuration diagram of normal mode initial screen data, FIG. 7 (D) is a configuration diagram of auto code progress mode initial screen data, FIG. FIG. 8 is a data configuration diagram of a screen progress memory unit. FIG. 9 (A) is an explanatory diagram showing an example of screen # 1 based on normal mode initial screen data. FIG. 9 (B) is an auto code progress mode. FIG. 9 (C) is an explanatory view showing an example of screen # 2 based on the initial screen data for use. Normal mode progress screen 1 screen # 3
FIG. 9 (D) shows a normal mode progress screen 2 screen # 4.
FIG. 9 (E) is a normal mode progress screen 3 screen # 5.
FIG. 9 (F) shows a progress screen 1 for the auto code progress mode.
FIG. 9 (G) shows an example of screen # 6, and FIG.
FIG. 10 is a diagram showing an example of screen # 7, FIG. 10 is a main flowchart of this embodiment, FIG. 11 is an operation flowchart of initial processing of the embodiment, and FIG. 12 is an operation flowchart of tempo processing of the embodiment. FIG. 13 is an operation flowchart of an initial rhythm switching process of the embodiment, FIG. 14 is an operation flowchart of a rhythm reproduction process of the embodiment, FIG. 15 is an operation flowchart of various switching processes of the embodiment, FIG. 16 is an operation flowchart of an auto code progress mode process of the embodiment, FIG. 17 is an operation flowchart of an auto code progress mode process of the embodiment, and FIG. 18 is an operation of an initial display process of the embodiment. Flowchart, FIG. 19 is an operation flowchart of a normal mode display progress processing of the embodiment, and FIG. 20 is an operation flow of an auto code progress display processing of the embodiment. FIGS. 21 (a) to 21 (o) are configuration diagrams of a flag counter register group (FCR), FIG. 22 is a configuration diagram of a pattern memory unit, and FIGS. 23 (a) to 23 (c) are FIG. 24 is a block diagram of a chord progression memory section, FIG. 25 is a data block diagram of tempo data, FIG. 26 is a data block diagram of each chord progression data, FIG. FIG. 27A is a configuration diagram showing the normal mode screen progress data and the present pattern screen progress data. FIG. 27B is a configuration diagram showing the normal mode screen progress data and an example of the fill-in screen progress data. Fig. 28 is a configuration diagram showing an example of screen progression in normal mode, Fig. 29 is a configuration diagram showing an example of screen progression data for auto chord progression intro, and Fig. 30 is an example of screen progression in auto chord progression mode. FIG. 101: Central control unit (CPU), 102: Timer clock, 103: Rhythm counter (RC), 104: Keyboard part, 105: Switch part, 106: Pattern memory part, 107: Chord progression memory Section 108 chord judge section 110 accompaniment sound generation section 111 rhythm sound generation section 112 sound system 113 screen memory section 114 screen progress memory section 115 display section.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G10H 1/00-1/46 G06T 13/00

Claims (8)

(57) [Claims] An accompaniment pattern storage means for storing a plurality of accompaniment patterns; a chord progression data storage means for storing a plurality of types of chord progression data indicating a chord progression order; A first selecting means for selecting any of the accompaniment patterns stored in the pattern storing means and selecting any of the chord progression data stored in the chord progression data storing means; First reading means for reading the selected accompaniment pattern at a predetermined timing; second reading means for sequentially reading the chord progression data selected by the first selecting means at a predetermined timing; A chord data generating means for generating chord data according to any operation of the performance operator; Second selecting means for selecting one of the chord data generated from the chord progression data and the chord progression data read from the chord progression data storage means, and the code data or chord progression data selected by the second selecting means. And an accompaniment sound generating means for generating an accompaniment sound signal based on the accompaniment pattern read by the first reading means. An automatic accompaniment apparatus comprising: a display means; and a plurality of types to be displayed on the display means. Screen data storage means that stores the screen data of the above, and screen progress data indicating a combination of a plurality of types of screen data stored in the screen data storage means, wherein a plurality of first data sets corresponding to the respective accompaniment patterns are provided. Screen progress data storage means for storing screen progress data and a plurality of types of second screen progress data corresponding to the chord progress data; When the serial code data generated from the code data generating means by the second selection means is selected, the first
A third reading means for selecting and sequentially reading the first screen progression data corresponding to the accompaniment pattern selected by the selection means, and a third reading means when the chord progression data is selected by the second selection means. A fourth selecting means for selecting and sequentially reading the second chord progression data corresponding to the chord progression data selected by the first selecting means; and the fourth reading means read by the third selecting means or the fourth reading means. A screen data supply unit for sequentially reading out corresponding screen data from the screen data storage unit based on each screen progress data and supplying the screen data to the display unit. 2. The first screen progress data includes a plurality of types of time data for determining a time interval until the next screen data is read out by the third reading means. 2. The automatic accompaniment apparatus according to claim 1, wherein said screen data is sequentially read at a read timing corresponding to time data. 3. The second screen progress data includes a plurality of types of time data for determining a time interval until the next screen data is read by the fourth reading means. 2. The automatic accompaniment apparatus according to claim 1, wherein said screen data is sequentially read at a read timing corresponding to time data. 4. The apparatus according to claim 1, wherein said first read means, said second read means, said third read means and said fourth read means have the same minimum read timing. Or the automatic accompaniment device according to 3. 5. The first reading means and the third reading means for repeatedly reading the accompaniment pattern selected by the first selecting means and the first image progress data corresponding thereto. The automatic accompaniment device according to claim 1, wherein: 6. The second reading means and the fourth reading means repeatedly read the chord progression data selected by the first selection means and the corresponding second image progression data. 2. The automatic accompaniment device according to claim 1, wherein: 7. When the code data from the code data generating means is selected by the second operating means, the first reading means responds to the operation of the external operating means. The reading operation of the third reading means is started, and when the chord progression data is selected by the second selecting means, the second reading means and the fourth reading means respond to the operation of the external operating means. 2. The automatic accompaniment device according to claim 1, further comprising control means for starting a reading operation of the reading means. 8. The screen data stored in the screen data storage means includes specific screen data, which is screen data of a specific screen to be displayed when each of the reading means is in a state before the start of reading, the accompaniment pattern and When a plurality of data are stored corresponding to the chord progression and the first reading means and the third reading means are in a state before the start of reading,
When the second reading means and the fourth reading means have not started reading the specific screen data corresponding to the accompaniment pattern selected by the first selecting means, the first selecting means selects the specific screen data. 8. The automatic accompaniment apparatus according to claim 7, wherein specific screen data corresponding to the chord progression data is supplied to said screen data supply means.