JPH04172390A - Automatic accompanying device - Google Patents

Abstract

PURPOSE:To execute an animated display corresponding to plural accompanying patterns and code proceeding for small memory capacity by storing plural kinds of the first animation proceeding data corresponding to each accompanying pattern and plural kinds of the second animation proceeding data corresponding to code proceeding data. CONSTITUTION:An individual picture datum to form an animation is stored in a memory means 113, and the first picture proceeding data and the second picture proceeding data which are data about the combination of the picture data are stored in a picture proceeding data memory means 14. Thus both the animation corresponding to an accompanying pattern based on the first picture proceeding data and the animation corresponding to code proceeding based on the second picture proceeding data can be obtained for small memory capacity.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an automatic accompaniment device for an electronic musical instrument, and more particularly to an automatic accompaniment device that displays moving images along with 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 a variety of musical tones. It is becoming easier to obtain.

Additionally, many electronic musical instruments are equipped with automatic accompaniment devices in order to obtain a wide variety of performance effects with simple operation.
being developed.

In this case, the automatic accompaniment can be performed using rhythm instrument sounds, bass and hood (chord) accompaniment, etc., which enhance musical expressiveness.

In an automatic accompaniment device that performs automatic accompaniment using bass chord accompaniment, the timing at which chord tones are sounded is, for example, 16 steps (corresponding to a 16th note).
It is specified by a pattern to be paired (hereinafter referred to as a code pattern).

In other words, specify whether or not to generate a chord sound for each step, read out the 16-step chord turns sequentially at a constant tempo, and determine and control whether or not to generate a chord sound for each step. By controlling the sounding timing of the sound and playing it while repeatedly reading out the above 16 steps, a musically rhythmic accompaniment effect can be obtained.

At this time, the performer determines how to specify the chord progression of the chord notes to be sounded in the above chord pattern, that is, how to specify the food type according to the progression of the song, by selecting a specific key area on the keyboard (hereinafter referred to as This can be performed at any time using the accompaniment keys (called accompaniment keys), or by storing chord progression data indicating the chord progression in advance and performing automatically based on the chord indicated by the chord progression data. It will be done.

[Problem to be solved by the invention]

However, the above-mentioned automatic accompaniment device uses specified chords or chords based on pre-stored chord progression data.
Since automatic accompaniment is performed by changing the rhythm instrument sounds and the pitch of the bass, it provides a sense of auditory play, as well as a sense of visual play, through arbitrary accompaniment patterns and chord progressions. It's not a thing.

It is possible to obtain a sense of visual play by installing a video monitor on the main body of an electronic musical instrument and displaying a moving image on the video monitor, but with such a method, the image data for displaying the moving image is becomes enormous. Furthermore, since today's automatic accompaniment devices can not only automatically play accompaniment patterns as mentioned above, but also automatically perform food progressions, it is a hot topic to synchronize accompaniment patterns and videos. It is also essential that the progress and video be synchronized. Therefore, in order to synchronize both with the video, it is necessary to store image data corresponding to each accompaniment pattern and chord progression, which results in an even larger amount of image data, making it difficult to put it into practical use. It was.

An object of the present invention is to provide an automatic accompaniment device that is capable of displaying moving images corresponding to a plurality of accompaniment patterns and chord progressions with a small storage capacity.

[Means to solve the problem]

In order to solve the above problems, the present invention includes a plurality of performance operators, an accompaniment pattern storage means for storing a plurality of types of accompaniment patterns, and one of the accompaniment patterns stored in the accompaniment pattern storage means. a first selection means for selecting the accompaniment pattern selected by the first selection means; a first reading means for reading out the accompaniment pattern selected by the first selection means at a predetermined timing; and generating chord data in accordance with the operation of the performance operator. a chord progression data generating means for storing a plurality of types of chord progression data indicating the progression order of the hood; and a chord progression data storage means for sequentially reading out the chord data stored in the chord progression data storage means at a predetermined timing. 2 reading means, and a second selection means for selecting either the chord data or the chord progression data;
an automatic accompaniment sound generating means for generating an accompaniment sound signal based on the chord data or chord progression data selected by the second selection means and the accompaniment pattern read out by the first reading means; In an accompaniment device, a display means, a screen data storage means storing a plurality of types of screen data to be displayed on the display means, and screen progress data indicating a combination of the plurality of types of screen data stored in the screen data storage means. a screen progress data storage means storing a plurality of types of first screen progress data corresponding to each of the accompaniment patterns and a plurality of types of second screen progress data corresponding to the chord progression data; When one of the accompaniment patterns is selected by the first selection means, a third screen reading means sequentially reads out the first screen progress data corresponding to the selected accompaniment pattern in synchronization with the first reading means. When chord progression data is selected by the reading means and the second selection means, the second screen progression data corresponding to the selected chord progression data is selected by the second selection means.
a fourth readout means that reads in synchronization with the readout means; and corresponding screen data from the screen data storage means based on each of the screen progress data read out by the third readout means or the fourth readout means. and screen data supply means for sequentially reading out and supplying the screen data to the display means.

[For production]

In the above configuration, when any accompaniment pattern is selected by the first selection means, the accompaniment pattern is selected from the first accompaniment pattern.
are sequentially read out by the reading means. At this time, when any one of the plurality of performance operators is operated, chord data corresponding to the operation of the performance operator is generated, and an accompaniment sound signal is generated from the chord data and the accompaniment pattern,
Automatic accompaniment is performed using the accompaniment signal.

Meanwhile, in synchronization with this, the first screen progress data corresponding to the selected accompaniment pattern is sequentially read out from the screen progress data storage means by the third reading means. The first 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 reads out data from the screen progress data storage means. Screen data is read out from the screen data storage means and supplied to the display means in accordance with the screen progress data.

Further, when any chord progression data is selected by the second selection means, the food progression data is sequentially read out by the second reading means. Then, an accompaniment sound signal is generated based on the chord data and the accompaniment pattern, and automatic accompaniment is performed using the accompaniment signal.

On the other hand, in synchronization with this, second screen progress data corresponding to the selected chord progression data is sequentially read out from the screen progress data storage means by the fourth reading means. The second 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 reads out the screen progress data from the screen progress data. Screen data corresponding to the screen progress data is read from the screen data storage means and supplied to the display means.

In other words, the screen data storage means only stores the individual screen data of the moving image displayed by the display means, while the first and second screen progress data are for the plurality of screens making up the moving image. It stores data indicating combinations of data. Therefore, when changing a video corresponding to a plurality of accompaniment patterns in accordance with the accompaniment pattern or a chord progression based on a plurality of chord progression data to obtain a sense of visual play, the screen data storage means
If it has a capacity to store a plurality of types of individual screen data for composing a moving image, and the screen progress data storage means has a capacity to store only the progress of these individual screens, the storage capacity will be sufficient.

〔Example〕

Hereinafter, the present invention will be described in detail with reference to the drawings.

(Configuration of Example) FIG. 1 is a configuration diagram of an embodiment of the present invention.

A central control unit (CPU, hereinafter the same) 101 is a control device that controls the overall operation, and has a flag counter register group (FOR, hereinafter the same L:) 1011 inside.

The CPUl0I includes a keyboard section 104, a switch section 105,
pattern memory section 106, chord progression memory section 107,
A code judge section 108, a screen memory section 113, a screen progress memory section 114, a display section 115, and a timer clock generation section 102 are connected. Also connected is a rhythm counter 103 that counts up by +1 based on the timer clock from the timer clock generator 102. The CPU 101 then controls the melody sound generation section 10.
9. Control the accompaniment sound generation section 110 and the rhythm sound generation section 111 to emit musical tones via the sound system 112.

As illustrated in the accompaniment sound generation section 110, the melody sound generation section 109, the accompaniment sound generation section 110, and the rhythm sound generation section 111, for example, have DC control that determines the volume and the basic waveform of the generated musical tones.
○(Digital Controlled Oscil
lator) 1101, an envelope generator 1102 that determines temporal changes in its characteristics, and DC○1101
D CW (
(Digital Controlled Wave)
I L O3, an envelope generator 1104 that determines temporal changes in its timbre characteristics, and a DCA (Digi
tal Controlled Amplifier)
1105, an envelope generator 1106, etc. that determines temporal changes in the volume characteristics, and by changing parameters given to the envelope generators 1102, 1104, 1106, etc., various musical sound waveforms can be generated. Note that the configuration is not limited to the above configuration, and for example, the rhythm sound generation section 111 stores the musical sound waveform of an actual rhythm instrument in a memory, and reads and outputs it in synchronization with a rhythm pattern to be described later. PC
An M sound source type configuration may also be used.

The sound system 112 includes a melody sound generator 109,
It is means for amplifying the musical waveforms output from the accompaniment sound generating section 110 and the rhythm sound generating section 111 and emitting the sound, and is, for example, an amplifier, a speaker, or the like.

FIG. 2 shows the appearance of the keyboard section 104 shown in FIG. 1.

As shown in the figure, it is composed of a plurality of keys 1041, and in this embodiment, it generates a scale for one five octave from C2 of the 0 octave (OC=O) to C1 of the 5 octave (OC=6). can. Among these, accompaniment key 1 up to C, -83
042 functions as a key for specifying a normal scale during normal performance, but functions as a key for specifying a chord in a normal mode during automatic accompaniment, which will be described later.

Also, adjacent to the keyboard section 104, the switch section 1 of FIG.
05 are arranged as shown in FIG.

The switch section 105 is a group of switches for making various settings during automatic accompaniment.

Rhythm switch (hereinafter referred to as SW) 105
1 consists of six switches #1 to #6, and by pressing any one of them, the rhythm during automatic accompaniment can be specified. In this case, each of the rhythms 5W1051 from #1 to #6 is assigned, for example, rock, waltz, march, samba, folk, and fujijin rhythms.

The auto chord progression 5W1052 is a switch for specifying an auto chord progression mode, which will be described later, and when this is pressed, the LED above it lights up.

Start 5W1054 is a switch for instructing the start of automatic accompaniment and image display, which will be described later.
1055 is a switch for instructing to stop automatic accompaniment and image display.

Intro 5W1053, fill-in 5W1056, and ending 5W1057 are switches for starting intro performance, fill-in performance, and ending performance, respectively.

Tempo up 5W105B and tempo down 5W105
9 are switches for increasing and decreasing the tempo of automatic accompaniment, respectively.

As shown in FIG. 5, the display section 115 has a horizontal dimension of 192
It is a rectangular LCD consisting of 9216 pixels, with 48 pixels in the 92-pixel direction.

As shown in FIG. 6, the screen memory portion 113 includes:
128 types of screen data are stored from screen #0 to screen #127, and the screens #0 to #127 are further divided into 1152 blocks of pixel blocks 0 to 1151. The above pixel blocks 0 to 1151 consist of a group of eight pixels in one row in the horizontal direction, and each pixel is turned off = 0,
It is stored as lighting=1.

The screen progress memory portion 114 includes screen progress data for normal mode [FIG. 7(A)], screen progress data for autocode progression mode [FIG. 7(B)], and initial screen data for normal mode [FIG. 7(B)]. (C)] and initial screen data for auto chord progression mode [(D) in the same figure] are stored.

The screen progress data for the normal mode is #1, which corresponds to each rhythm of #1 to #6 of the Rhythm 5W1051.
It consists of screen progress data for main pattern ~#6, screen progress data for fill-in pattern, screen progress data for intro pattern, and screen progress data for ending pattern, and each progress data includes steps from O to 7,
Alternatively, the steps from 0 to 15 are stored.

The screen progression data for the auto chord progression mode is the same, and the screen progression data for main patterns #1 to #6 and the screen progression data for fill-in patterns correspond to the rhythms #1 to #6 of the rhythm 5W1051. , screen progress data for intro pattern, and screen progress data for ending pattern, and each progress data is O~
It is stored with steps up to 31.

The above initial screen data for the normal mode and the initial screen data for the auto chord progression mode include the above screen data #
Among 0 to #127, a single screen data corresponds to the above rhythm #
1 to #6 are stored.

FIG. 8 shows the data structure of the screen progress memory part 114, in which screen number data GD for displaying the initial screen is stored in the header, and step 0 is subsequently stored in accordance with the length of the screen progress data. ~7, O~15.0~
Screen data No. 0 to 127 is stored for each step as 8-bit data, and screen sound length data COD as time data until the screen data of the next step is read out is stored for each step. has been done.

The tone length f-event GOD is set to have a minimum readout period of roooIJ=16th note length and a maximum readout period of roooIJ=1/4th note.

Here, the minimum readout period is the same as the minimum note length (16th note length) in the accompaniment pattern described later,
Further, the temporal length of each tone length data COD is the same as the minimum note length of the tone length data indicating the tone length of the accompaniment tone in the accompaniment pattern.

Note that FIGS. 9(A) to 9(G) show the screen memory part 1.
An example of the case where an image is actually displayed on the display unit 115 based on the data of No. 13 is shown, and as shown in screen #l based on the initial screen data for normal mode shown in FIG. is rhythm (rhythm #1
= lock) is displayed. Same figure (C) (D) (E
) is an example of a screen change when "lock" of rhythm #1 is selected, and in this example, a graphical display is made. In addition, (B) of the same figure shows an example of the display based on the initial screen data when rhythm #l "lock" is selected and the auto chord progression mode is selected. ), fill-in,
Each chord progression of the ending is shown.

Also, (F) and (G) in the same figure show the case where screen #6 is displayed as the progress screen 182 for the auto chord progression mode, and the case where the screen #7 is displayed as the progress screen 2 for the auto chord progression mode. The chord name of the measure and the position at which the key should be pressed are indicated, and the next hood is indicated by the position at which the key should be pressed.

(Schematic operation of the example) First, the general operation of the embodiment having the above configuration will be explained.

First, during normal performance without automatic accompaniment, key information KI shown in FIG. 4 is input from the keyboard section 104 of FIG. 1.

The key information Kl is 0N10FF information OF indicating key press/release.
, a key code KC indicating one of the 12 scales, and an octave code OC indicating the octave. Then, when any key 1041 (FIG. 3) on the keyboard section 104 is pressed, the CPU 10I outputs the key code K.
Based on C and octave hood OC, pitch information corresponding to the pressed key is generated and supplied to the melody sound generating section 109. As a result, the melody sound generating section 109 generates a melody sound based on the pitch information, and the sound is emitted via the sound system 112.

Next, during automatic accompaniment, it is possible to specify two types: /-maru mode and auto chord progression mode.

First, in the normal mode, the performer can select one of six types of rhythms such as rock, waltz, etc. Then, when any rhythm is selected, FIG. 9 (A) corresponding to this selected rhythm is displayed.
An initial screen as shown in is displayed on the display unit 115. After that, when automatic accompaniment is started, the rhythm sound generation unit 111 shown in FIG. 1 starts producing rhythm accompaniment sounds using a plurality of rhythm instrument sounds in a rhythm pattern consisting of 16 independent steps for each rhythm instrument sound. repeated.

In this case, 16 steps correspond to, for example, one measure on the musical score, and therefore, for example, the same rhythm pattern is repeated for each measure.

In addition, in synchronization with the start of the automatic accompaniment, the initial screen disappears, and the screen shown in FIGS. 9 (C), (D) (
E) An image as illustrated is displayed.

In this state, the player presses the keyboard section 104 in FIG. 1 or 2.
C! By pressing any accompaniment key 1042 between ~B, the accompaniment sound generating section 110 in FIG.
With a bass pattern consisting of six steps, accompaniment tones based on a predetermined bass tone are started and repeated. At the same time, the accompaniment sound generating section 110 of the 1st figure generates a chord corresponding to the accompaniment key, a chord pattern consisting of 16 steps different from the rhythm pattern and the bass pattern, and a predetermined chord tone of, for example, 3 notes or Accompaniment tones based on a chord consisting of four tones are started and repeated.

In this way, in the normal mode, for example, if a rock rhythm is selected, the rhythm accompaniment of the rock rhythm pattern is performed using a plurality of rhythm instrument sounds, and a moving image corresponding to the rock is displayed on the display unit 115. At the same time as specifying a chord using the accompaniment key 1042 in FIG. Automatic accompaniment can be started. At this time, the player selects B on the keyboard section 104 in FIG.
By using the keys 1041 of scales higher than 3, it is possible to freely perform melodies and the like along with the accompaniment.

Next, in the auto chord progression mode, when you select a rhythm and start automatic accompaniment as in the normal mode, the rhythm accompaniment will start as in the normal mode, and the 9th chord corresponding to the selected rhythm will start. Figure (E) (G)
At the same time that an image like that shown in FIG. In this case, the bass pattern and the food pattern repeat a predetermined 16-step pattern corresponding to the selected rhythm, but at this time, the scale of the bass note and chord note is set to a pre-stored chord corresponding to the selected rhythm. The chord progression data consisting of the combinations of
There is no need to input the code using 04.

In this way, in the auto chord progression mode, for example, when you select a rock rhythm, in addition to the rhythm accompaniment of the rock rhythm pattern using multiple rhythm instrument sounds, you can also hear the rock bass pattern, bass progression accompaniment, and rock chord pattern. - Automatic accompaniment can be created by chord accompaniment of chord progression. Then, the performer can freely perform a melody or the like in accordance with the accompaniment using any key 1041 of the keyboard section 104 shown in FIG.

In addition, in both normal mode and auto chord progression mode, the performer can play the intro 5W105 in Figure 3.
3. Fill-in 5W1056 and ending 5W10
57, various performance effects can be added, and the rhythm 5W1051 in FIG. 3 can be switched even during the performance. When the intro 5W 1053, fill-in 5W 1056, and ending 5W 1057 are operated, the image displayed on the display unit 115 also changes according to the intro, fill-in, and ending patterns.

(Detailed Operation in Normal Mode) Next, detailed operation in normal mode during automatic accompaniment will be explained.

Description of FCH First, FORIO II of FIG. 1 is shown in FIG. 21 and listed below.

Rhythm number register RR (Fig. 21(a)); 3rd
A 3-bit register pattern register PR (Fig. 21(b)) that indicates which rhythm is currently specified among the rhythms 5W1051 of #1 to #6 in the figure; the current rhythm pattern or chord pattern is ,
2-pit register Rhythm number register PRR indicating whether it is a fill-in pattern, intro pattern, or ending pattern (Figure 21 (C))
; 3-bit register accompaniment flag BF (Fig. 21(e)) indicating the rhythm number immediately before the current rhythm is specified; 1 indicating whether automatic accompaniment or autorhythm is currently in progress Bit flag tempo data register TR (FIG. 21(f)): A 5-bit register that indicates the current tempo, and a rhythm counter based on this tempo.

The counter value RC of 3 is counted up (auto code progress flag ACR (Figure 21-(g));
1-bit flag pattern change standby flag PTF indicating whether auto chord progression mode is enabled (Figure 21 (h)
): Rhythm is switched or ending 5W105
7 (Figure 3) is pressed and until the pattern actually changes, a 1-bit flag tone length counter OC (Figure 21 (i)) that indicates whether or not the pattern is on standby; Counter code counter CC (second
1 (j)); Counts up the address of chord progression data (counter code name register xyOcR (Fig. 21 (k)); register screen that stores chord name data
(Fig. 21 (m)); A counter that measures the screen progress by subtracting the sound length. Screen counter GC (Fig. 21 (n)); A counter that counts up the address of the screen progress data. A screen number register GNR ( FIG. 21(0)); 4-bit register indicating the current screen # in the screen progress data Below, the operation in the normal mode will be explained.

Wait 11 First, when the performer turns on the power to the main body (not shown), the main operation flowchart shown in FIG. 10 starts, and initial processing is first performed in SAO1. The details of this process are shown in FIG. That is, various flags and counters are initialized in steps 5B01 to 5B12 in the figure. The reason why the content of the tempo data register TR is initialized to 16 in 5BO2 is to set the tempo to an intermediate value since the register can take values from 0 to 31, as will be described later. After these processes, the initial process ends.

After the initial processing of 5AO1 in FIG. 10 above, 5AO2
~5AO7 processing loop is repeated 1 First, 5AO
In step 2, tempo processing is performed. The details of this process are shown in FIG. That is, sc.

Use l to determine whether tempo up 5W1058 in Figure 3 has been pressed, and if it is determined that the same sw has been pressed, 5CO3
The value of the tempo data register TR is increased by 1, the tempo is increased, and the tempo processing is ended. 5COI judgment is NO
In the case of 5CO2, the tempo down in Figure 3 is 5W1059
Determine whether or not the SW has been pressed, and if it is determined that the SW has been pressed, set the value of the tempo data register TR by -1 using 5CO4.
Then, the tempo is lowered and the tempo processing ends. In addition,
Although the value of this register is not specifically shown, the value is 0 or less or 31
It is controlled so that it does not exceed this level. 5C02 judgment is N
In the case of o, tempo processing is ended without performing tempo control.

After the tempo processing in FIG. 10, 5AO2, initial rhythm switching processing is performed in 5A03. The details of this process are shown in FIG. In other words, rhythm 5W105 in Fig. 3 at SDO1
Determine whether or not 1 has been switched, and if YES, proceed from SDO1 → 5DO2 and rhythm 5W1051
A value corresponding to the rhythm number of is set in the rhythm number register RR to switch the rhythm, and the initial rhythm switching process is completed. Here, as shown in FIG. 21(a), corresponding to rhythm numbers #1 to #6 (see also FIG. 3),
A value from 0 to 5 is set as a 3-bit binary number. On the other hand, if the rhythm 5W 1051 has not been switched and the determination of SDO1 is NO, the initial rhythm switching process is ended without doing anything.

5 after the initial rhythm switching in Figure 10 5AO3 above is completed.
Perform initial display processing with AO4. The details of this process are explained in Section 18.
As shown in the figure. That is, first, it is determined whether ACF=0 or not, and if the mode is normal mode, this determination is YES as shown in FIG. 21(g). Therefore, 5I02
Then, read the rhythm # indicated by RH in the initial screen data for normal mode in the screen progress memory part 113.

In other words, if, for example, the rhythm # lock is selected here, then the rhythm number register RR (Fig. 21 (
"o" (0=rhythm #1) is stored in a)), and the initial screen for normal mode that this 0" indicates is read. Next, in 5I03, the screen number data CD
(Figure 13) is screen number register GNR (21st
(0)). Further, in step 3104, the screen # indicated by the screen number register GNR in the screen memory part 113 is read and transferred and displayed on the display section 115.

Therefore, when the process of 5I04 is executed, an initial screen that is a specific screen as illustrated in FIG. 9(A) is displayed on the display unit 115.

For this reason, such an initial screen during standby operation
By displaying information regarding the accompaniment pattern (lock) that is about to start, it is possible to utilize the time during the standby operation to provide the user of the electronic musical instrument with information that is effective for performance.

Further, if the determination of 5IOI is NO, as shown in FIG. 21(g), it is the auto food progress mode,
In this case, at 5IO5, the rhythm # indicated by RR of the initial screen data for auto food progression in the screen progression memory part 114 is read, and the process similarly proceeds from 5IO3 to 5IO4. Therefore, in this case, the initial screen for autocode illustrated in FIG. 9(B) is displayed.

After the initial display switching process in FIG. 10, 5AO4, SAO
5m” Figure 3 (7) t-) Near-to progress 5W10
52 is pressed. Currently, in the normal mode, the SW is not pressed, so the determination is No.

Subsequently, at 5AO6, it is determined whether or not the intro 5WIO53 in FIG. 3 has been pressed. The case where the button is pressed will be described later.

Judgment of 5A06, if 6<NO12), 5A07t
'Star in Figure 3) Determine whether SW1054 has been pressed.

star) If SW1054 is not pressed, the above 5AO
Repeat the processes 2 to 5AO7 and wait until any of the auto food advance 5W1052, intro 5W1053, or start 5W1054 in FIG. 3 is pressed. Therefore, the initial screen continues to be displayed during this time.

Reproduction operation of only rhythm sounds When the performer presses the start 5W1054 in FIG. 3 in the standby state of FIG. 10, 5AO2 to 5AO6, the reproduction operation of only rhythm sounds starts.

First, after the determination at 5AO7 becomes YES, it is determined at 5AIO whether the content of the accompaniment flag BP is 1, that is, whether automatic accompaniment or autorhythm is being performed. now,
Since the flag is initially set to 0 in the initial processing of SAOl (FIG. 11, 5BO8), the autorhythm is in progress at first, and the determination of 5AIO is NO.

Subsequently, if the performer does not press the accompaniment key 1042 shown in FIG. 2, the determination at 5A22 becomes No, and the normal mode display progress process is performed at 5A25. Details of this normal mode display progress processing are shown in FIG. In other words, first 5JO
In I, it is determined whether the value of the pattern register PR is "1", that is, whether the fill-in 5W1056 is pressed or not. If this determination is No, the process advances to 5JO2 and the value of the screen sound length counter GOC is ”. If this determination is YES, it is time to read the next screen data, and it is further determined in 5JO3 whether or not the screen sound length data C0D=F. The screen sound length data COD becomes "F" when one display pattern is completed as shown in FIG. 27(A). If this determination is YES, the screen counter GC is set to "0" in 5JO4. Therefore, 5JO3゜5
By executing JO4, each time the image display based on the currently executed screen progress data ends, it is repeatedly read out and the image display is repeated. At this time, since the accompaniment pattern is also repeated in the same way,
By repeating both, it becomes possible to visually learn the accompaniment pattern by associating it with the image display.

On the other hand, if the determination of 5JO3 is No, it is determined whether PR=2, that is, whether or not intro 5WLO53 has been pressed (SJO5). If this determination is NO, it is further determined whether PR=3, that is, whether or not the ending 5W1057 was pressed (5JO6), and this determination is also NO.
If so, read the GC step of the rhythm # indicated by RR in the main pattern screen progress data for normal mode (S
JO7). That is, if the example in FIG. 27(A) is the main pattern screen progression of rhythm #l, and if the current step is "3", then GD=#4, C0D
=1 is read.

Then, store the C0D=1 in the GOC.5JOB
), and store GD=$4 in GNH (S J 0
9). Then, the screen # (FIG. 6) indicated by GNH in the screen memory part 113 is read and transferred and displayed on the display section 115 (SJIO). Furthermore, the GC is incremented (SJII) and the GOC is counted down (SJII).
J12).

That is, the processing of 5JO7 and 5JIO described above and FIG.
As understood from FIG. 8, the screen memory part 113 only stores individual screen data #0 to #127, while the screen progress memory part 114 stores a plurality of screen data #0 to #127. It merely stores screen progress data formed by combining the following, that is, data related to screen progress, for each accompaniment pattern.

Therefore, even if a plurality of types of accompaniment patterns are set, the screen memory part 113 only needs to have the capacity to store only the plurality of screen data used for the accompaniment patterns, regardless of the number of types of accompaniment patterns. On the other hand, the screen progress memory part 114 only needs to have a capacity to store only the order and tone length data of the screen data, regardless of the contents of the screen data. Therefore, by using the memory sections 113 and 114 each having a small capacity, it is possible to display a display according to the accompaniment pattern on the display section 115, thereby providing a visual game section or the like.

In addition, the judgment of 5JOI, 5JO5, and 5JO6 is YE.
The case where it is S will be described later.

After the normal mode display advance processing is performed at 5A25 in this way, BF-4 is determined at 5AIO in FIG. Perform playback processing. The details of this process are shown in FIG.

First, it is determined whether the value of the pattern register PR is 1.2 or 3 in SEOL, 5EO2, and 5EO3, that is, whether the pattern to be automatically accompanied is a fill-in pattern, an intro pattern, or an ending pattern. When the performer presses SW1054 (Star), the register is initialized to 0 by the initial processing of 5AOI (5BO5 in Fig. 11), so the pattern will initially be this, and all judgments from 5EOI to 5EO3 will be No. Then, proceed to the processing of 5EO4.

At 5EO4, it is determined whether the value of the pattern change standby flag PTF is 0 or not. The function of this flag will be described later, but initially the flag is initially set to 0 during the initial processing of SAO1 (Figure 11, 5BO7).
, 5EO4 is NO, and the process proceeds to 5EO5.

5EO5, the counter value R of the rhythm counter 103 in FIG.
The process of reading out the step indicated by C is performed. Now, the CPU
The pattern memory unit 106 connected to IO1 stores a rhythm pattern (chord pattern and bass pattern will be described later) having a configuration as shown in FIG. As shown in the figure, the rhythm pattern is the main pattern,
It consists of four patterns: a fill-in pattern, an intro pattern, and an ending pattern, and for each of these patterns, each rhythm of #1 to #6 is O~! It consists of 5 16 step patterns.

FIG. 23(a) shows the rhythm pattern of each of the 16 steps in FIG. 22. As shown in the figure, during automatic accompaniment, it is possible to specify whether or not a rhythm sound is to be generated for each step using a binary number of 0 or 1 for each of the eight rhythm instrument sounds. Here, BD is bass drum sound, SN is snare drum sound, cH
is a closed buy-butt sound, OH is an open buy-butt sound, T1 to T2 are tom l to tom three sounds, and cY is a cymbal sound. From these configurations, in 5EO5 of FIG. 14, the CPLI 101 of FIG. 1 corresponds to the value indicated by the rhythm number register RR of the main rhythm pattern of FIG. 22 stored in the pattern memory section 106. The step corresponding to the counter value of the rhythm counter 103 in FIG. 1 is read from the main rhythm pattern of the rhythm number (any one of #1 to #6).

Following the above operation, at 5EO6 in FIG. 14, an instruction is given to the rhythm sound generating section 111 in FIG. 1 to generate the rhythm sound for which "1" is designated by the read Ste knob.

At this time, as shown in FIG. 23(a), in order to generate about 8 types of rhythm sounds in parallel, the above operation is also necessary for 8 tones, but this is because the rhythm sound generation section 111 of FIG. By time-division operation, each rhythm sound can be performed independently. As a result, the rhythm sound generation section 111 generates rhythm sounds for each rhythm sound at timings based on the rhythm pattern, and the sounds are emitted via the sound system 112.

When the processing of 5EO6 is completed, the reproduction processing of the rhythm sound for one step is completed.

When the rhythm reproduction process for one step is completed at 5A17 in FIG. 10, the process enters a waiting state for inputting a timer clock from the timer clock generator 102 in FIG. 1 by repeating 5A18.

When the timer clock is input, the rhythm counter 103 in FIG. 1 is counted up at 5A19.

After going through the processes of 5A20 and 5A21 (described later), each determination of 5AIO and 5A22 becomes No (these will also be described later), and the normal mode display progress process of 5A25 and the rhythm playback process of 5A17 are performed again. In this case, in 5JO7 in FIG. 19, the rhythm counter 1 in FIG.
Since the value of 03 is +1, the rhythm number corresponding to the value indicated by the rhythm number register RR among the main rhythm patterns of FIG. 27(A) stored in the screen progress memory part 114 of FIG. The steps read from the main rhythm pattern (any of #1 to #6) are:
Advance one step from the previous process.

Similarly, in 5EO5 of FIG. 14, since the value of the rhythm counter 103 of FIG. 1 is incremented by 1, the rhythm The step of reading out the main rhythm pattern of the rhythm number (any one of #1 to #6) corresponding to the value indicated by the number register RR is one step ahead of the previous processing.

Then, in accordance with the read steps, processing for transferring and displaying them to the display unit 113 is performed at 5JIO in FIG. 19, and processing for generating rhythm sounds is performed at 5EO6 in FIG. 14.

As mentioned above, 5AIO → 5A22 → 5A2 in Figure 10
By repeating the loop process of 5→5A14→5A17 to SA21→5AIO, the rhythm # (#1 to ##) corresponding to the value indicated by the rhythm number register RR in the screen progress data for this pattern in FIG. any of 6)
The 8-step (0 to 7) screen progress data are sequentially read out and displayed on the display section 115 based on this data. Also,
Among the main rhythm patterns in FIG. 14, the rhythm numbers (#1 to
The main rhythm pattern of 16 steps (any one of #6) is sequentially read out, and rhythm sounds are generated in accordance with the 16-step main rhythm pattern.

In this case, the rhythm counter 103 in FIG. 1 is a hexadecimal counter, and steps 0 to 15 (16 steps) are used.
After counting up, the process returns to step O, so that each rhythm sound is repeatedly sounded for a predetermined 16 steps. These 16 steps correspond to, for example, one bar on the musical score. That is, each of the approximately eight types of rhythm tones during automatic accompaniment is played repeatedly in a fixed rhythm pattern for each bar.

On the other hand, as shown in FIG. 27(A), this pattern screen progress data consists of steps 0 to 4 (5 steps), but since the tone length of the 4th step is 4', the above 8 for the readout step of this rhythm pattern
Corresponds to the number of steps. For this reason, as shown in the first measure of FIG. 28, while the main rhythm pattern is repeated once within one measure, the same display pattern is repeated twice on the display section 115. 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 section 115 will match again.

Therefore, the main rhythm pattern and the start and end points of the screen progression are synchronized, so that images that match the automatic accompaniment can always be displayed.

Moreover, since the minimum readout cycle of the rhythm pattern and the screen progression are both 16th note length, they are rhythmically matched, and this allows the performer to visually adjust the rhythm timing of the automatic accompaniment. It becomes possible to make people perceive it.

In addition, in this example, the time length of one screen progression pattern is 1/2 of the time length of the main rhythm pattern, but if the time lengths of both are made the same, - layer automatic It becomes possible to visually perceive the rhythm timing of the accompaniment.

When the tempo is changed during the rhythm sound only playback operation In the above rhythm sound only playback operation, the rhythm sound production speed is the speed at which the rhythm counter 103 in FIG. 1 is counted up at 5A19 in FIG. 5A1
8 is determined by the speed at which the timer clock is input from the timer clock 102 in FIG. The input timing of this timer clock is CPU I O1 in FIG.
is determined according to the value of 0 to 31 of the tempo data register TR.
Decided on stage 31. The value of the tempo data register TR is set to the intermediate value 16 in the initial processing of SAO1 in FIG.
(5BO2 in FIG. 11), and can be changed at 5AO2 in FIG. 10 before automatic accompaniment.

In addition to this processing, the performer also performs tempo up 5W1058 or tempo down 5W10 in FIG.
By operating 59, the value of the tempo data register TR can be changed at 5A20 in FIG. This process consists of 5
This is exactly the same as the tempo processing of AO2, and is shown in FIG. 12, which has already been explained.

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

When the rhythm is switched during the rhythm sound only playback operation In the above rhythm sound only playback operation, which rhythm pattern of rhythm number #1 to #6 is selected in the main rhythm pattern shown in Figure 2.2? #1 to 5 corresponding to the values O to 5 indicated by the rhythm number register RR
It is determined by the rhythm number #6.

The value of this rhythm number register RR is changed at 5AO3 in FIG. 10 before the automatic accompaniment starts, but the value of the rhythm number register RR is changed at 5AO3 in FIG. By selecting the desired one,
You can change the rhythm pattern arbitrarily. This operation is the first
This process is realized as a part of the various switching processes of 5A21 in FIG. 0, and the details of the process are shown in FIG.

First, all judgments from 5FOI to 5FO3 are No (
(This will be described later), then proceed to the processing of 5FO4.

Here, if the rhythm 5W1051 in FIG. 3 is not switched, the determination of 5FO4 is No, and the various switching processes are ended. On the other hand, if the same SW is switched, 5FO
The determination in step 4 becomes YES, and the process proceeds to steps 5FO5 and 5FO6.

At 5FO5, the previous value of the rhythm number register RR is copied to the rhythm number register PRR. In the next 5FO6, a value corresponding to the rhythm number of rhythm 5W1051 is set in the rhythm number register RR to switch the rhythm.

Next, at 5FO7, the rhythm counter 103 in FIG.
It is determined whether or not the counter @RC (indicating the next step to be sounded) is O, that is, whether or not it is the right timing to break up the 16-step main rhythm pattern.

If the determination in 5FO7 is YES, that is, the timing is just before or after the break, the process advances to 5FOB and it is determined whether the value of the autocode progress flag ACF is 1 or not. Currently in normal mode, the contents of ACF are 5A in Figure 10.
Since it is still initially set to O in the initial processing of O3 (Fig. 11, 5BO3), this judgment is NO and 5FII
Proceed to processing. At 5F11, after the value of the pattern change standby flag PTF is set to O, various switching processes are ended. In other words, at the perfect timing of the 16-step main rhythm pattern, the PTF value is O.
becomes.

On the other hand, if the judgment of 5FO7 is No, that is, the timing is in the middle of the 16-step main rhythm pattern, 5F16
After the pattern change standby flag PTF is set to 1, the various switching processes are ended. That is,
At a timing in the middle of the 16-step main rhythm pattern, the value of PTF becomes 1.

As described above, after changing the value of the rhythm number register RR and setting the pattern change standby flag PTF(7) value, the 10th v! JnoSA 10.5A14
．． The determination in 5A22 becomes No, and the normal mode display proceeding process in 5A25 and the rhythm playback process in 5A14 are started again.

Here, if the rhythm changes at the right timing of the main rhythm pattern of 16 steps, the value of the pattern change standby flag PTF is 0, so after going through SEO1 to 5EO3 in Fig. 14, the judgment of 5EO4 is made. becomes YES. Therefore, in the next 5EO5, a rhythm corresponding to the new value indicated by the rhythm number register RR due to the rhythm switching among the main rhythm patterns of FIG. 22 stored in the pattern memory section 106 of FIG. The main rhythm pattern of the number is sequentially read out from step 0, and from then on, rhythm sounds are produced using the changed rhythm pattern.

On the other hand, at this time, in the normal mode display progress processing shown in FIG. If the value of change wait flag PTF is 0, 5J
Since the O2 determination is YES, 5J03~ in Figure 19
After passing through 5JO6, in 5JO7, the GC step of the rhythm # indicated by RR is selected in the screen progress data for the main pattern for normal mode in FIG. 7(A) stored in the screen progress memory part 114 in FIG. I Read. At this time, if the main rhythm pattern is read out sequentially from step 0 as described above, the screen progress data will also be read out from step 0 based on the time length of both data mentioned above, and after this, the changed screen progress data will be read out sequentially from step 0. A display is made with data.

On the other hand, if the rhythm is switched in the middle of the 16-step main rhythm pattern, the value of the pattern change standby flag PTF is 1, so the SEo in FIG.
After passing through 1 to 5EO3, the judgment of 5EO4 is No and 5
Proceed to EO7.

5EO7 selects the main rhythm pattern shown in FIG. 1 from among the main rhythm patterns shown in FIG. 2 stored in the pattern memory section 1.6 shown in FIG. The step corresponding to the counter value RC of the rhythm counter 103 is read out. Here, in the Brirhythm number register PRR,
Since the value corresponding to the rhythm number before the rhythm is switched is stored, the value RC of the rhythm counter 103 in FIG. 1 is determined to be 15 at the next 5EO8.
Proceeding to step 6, rhythm sounds are produced using the main rhythm pattern before the rhythm is switched.

Then, the above rhythm reproduction process of 5A17 is repeated through the loop of 5AIO to SA21 in FIG. 10, and the value RC of the rhythm counter 103 is
becomes 15, that is, when the rhythm pattern to be sounded next becomes the final 15 steps, the judgment becomes YES, and after the judgment of the next 5 EIO becomes No (
Since it is normal mode, the ACF value is O), 5E1
At step 2, the value of the pattern change standby flag PTF is returned to 0, and the program proceeds to step 5EO6, where the final step of the main rhythm pattern before the rhythm is switched is sounded.

After this operation, the loop from 5AIO to SA21 in FIG.
Since TF was set to 0, the judgment of 5EO4 in Figure 14 is YE.
S, and the pattern memory section 10 in FIG. 1 is 5EO5.
Among the main rhythm patterns shown in FIG. 22 stored in step 6, the main rhythm patterns whose rhythm numbers correspond to the new values indicated by the rhythm number register RR due to the rhythm switching are sequentially read out from step 0. After this, rhythm sounds are produced using the changed rhythm pattern. In this way, when the rhythm is switched in the middle of the 16-step main rhythm pattern, the main rhythm pattern before the rhythm is switched until the timing near the end is sounded, and then the new main rhythm pattern is switched.

Then, if the main rhythm pattern of the rhythm number is read out sequentially from step 0 in this way and the rhythm sound is produced with the changed rhythm pattern, then the screen will be displayed in the same manner from the time length of both data as described above. The progress data will also be read from step O, and from then on, the changed screen progress data will be displayed.

The operation when the performer presses fill-in 5W1058 in FIG. 3 while the normal mode display progressing process in 5A25 and the rhythm playback process in 5A14 are being repeated in the loop from 5AIO to SA21 will be described. In this case, the rhythm sound is produced using the fill-in rhythm pattern from that timing until the 15th step, and then
Return to the original rhythm.

The switching preparation process for this purpose is performed in the various switching processes of 5A21 in FIG. That is, in FIG. 15, since the determination of SFO1 is YES, 5F17
Then, it is determined whether the value 1 in the pattern register PR is set/toshi, and then it is determined whether ACF=1. At this time, since it is the normal mode, this determination becomes No, and the count value RC of the rhythm counter 103 in FIG. 1 is stored in the GC (5F19), and the various switching processes in FIG. 10, 5A1B, are completed.

After the value of the pattern register PR and the value of the screen counter GC are changed as described above, 5AIO in FIG.
1SA22's determination is No, and 5A25's normal mode display processing, 5AI4's rhythm playback processing, and 5
The process enters the normal mode display process of A25.

In FIG. 14, since the above PR=1, the determination in 5E01 becomes YES and the process proceeds to 5E13. In 5E13, the fill-in rhythm of FIG. 22 stored in the pattern memory section 1°6 of FIG. The step corresponding to the counter value of the rhythm counter 1.degree.3 in FIG. 1 is read out from the fill-in rhythm pattern of the rhythm number corresponding to the value indicated by the rhythm number register RR at the other end of the pattern.

Thereafter, until the RC value is determined to be 15 in the next step 5E14, the process proceeds to 5EO6 and rhythm sounds are generated in the fill-in rhythm pattern.

On the other hand, in FIG. 19, since the PR=1, the determination in 5JO1 becomes YES, and the process proceeds to SJ14.

5E14, the fill-in number of the rhythm # corresponding to the value indicated by the rhythm number register RR among the fill-in screen progress data for the normal mode shown in FIG. 7(A) stored in the screen progress memory part 114 shown in FIG. The step indicated by the screen counter GC is read out from the rhythm pattern.

(At this time, GC is set in 5F19 above.) After sono, it is determined whether GNR=GD or not (5JI6), and if this determination is NO, that is, if the display screen must be changed. 5J09.5JIO processing to change the contents of the screen number register and change the display.

FIG. 27(B) shows an example of fill-in screen progress data in normal mode. This fill-in screen progress data does not use screen sound length data COD, but uses sixteenth note length (in this example). Screen progress data is stored for each step that progresses over a minimum time length). In other words, since it is uncertain at what point the fill-in will change, each step of the minimum time length is The screen number data GD is stored in the . Therefore, in this fill-in screen progress data, when displaying the same screen for a time longer than the minimum time,
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 section 115 for each sixteenth note length, flickering will occur on the screen displaying the same image. Therefore, if the determination of GNR=GD is YES, 5
Only JII and 5J12 processing is performed, and the same image is displayed continuously.

As shown above, even if the rhythm is switched in the middle of the 16-step main rhythm pattern, the rhythm is immediately changed to the fill-in rhythm pattern and the fill-in screen. This allows the performer to perform fill-in 5 in Figure 3.
At the timing when W1056 is pressed, a fill-in effect can be added to the rhythm sound being generated, and a fill-in screen can be displayed.

Based on the above operation, 5AIO → 5A22 in Figure 10
→ 5A25 → 5A2 by loop of 5A14 to 5A21
The normal mode display progressing process in 5 and the rhythm playback process in 5A14 are repeated, and at 5E14 in FIG.
When the value RC of the rhythm counter 103 reaches 15, that is, the next rhythm pattern to be generated is the final 15.
When the step is reached, the judgment of 5E14 in Figure 14 is Y.
It becomes ES and proceeds to 5E15.

At 5E15, the contents of the pattern register PR are returned to O, and preparations are made to return to the main rhythm pattern. continue,
Processes 5E16 to 5E18 are performed, and these processes are performed in an autochord progression mode, which will be described later. After these processes, the process proceeds to step 5EO6, where the rhythm sound of the final step of the fill-in rhythm pattern is generated.

After the above operation, 5AIO → 5A22 → 5A2 in Figure 10
When the loop of 5→5A14 to SA21→5AIO is repeated and the rhythm playback process of 5A17 is started again, since PR has been set to O, the judgments of SEO1 to 5EO3 in FIG. Go back, again
Judgments for 5Jot, 5JO5, and 5JO6 in Figure 19 are also No.
Then, the screen returns to the main pattern for normal mode.

When the ending switch is pressed during playback of only rhythm sound
The operation when the performer presses the ending 5W1057 in FIG. 3 while the normal mode display progressing process of 5A25 and the rhythm playback process of 5A14 are being repeated in the loop of 1 will be described. In this case, after the rhythm tones are generated up to a point with good separation using the main rhythm pattern, the rhythm tones are generated using the 16-step ending rhythm pattern, and the automatic accompaniment using the rhythm tones is ended.

The switching preparation process for this purpose is performed in the various switching processes of 5A21 in FIG. That is, in FIG. 15, since the determination of 5FO2 is YES, 5F15
The process moves on to the process, where the value 3 is set in the pattern register PR, and the process proceeds to the determination of 5FO7.

At step 5FO7, it is determined whether the counter value RC of the rhythm counter 103 in FIG.

If the judgment of 5FO7 is YES, that is, the timing is just right, the judgment of 5FOB is NO, and 5FII
After the pattern change standby flag PTF is set to O, the various switching processes are terminated. That is, as in the case of rhythm switching during the above-mentioned rhythm sound reproduction operation, the value of PTF becomes O at the timing at which the main rhythm pattern of 16 steps has a good break.

On the other hand, if the judgment of 5FO7 is No, that is, the timing is in the middle of the 16-step main rhythm pattern, 5F16
After the pattern change standby flag PTF is set, the various switching processes are completed. That is, 16
At the timing in the middle of the main rhythm pattern of the step,
The value of PTF becomes 1. This is also the same as the case of rhythm switching described above.

After the value of the pattern register PR is changed and the value of the pattern change standby flag PTF is set as described above, the determination of 5AIO1SA22 in FIG. 10 becomes No, and the normal mode display progress processing of 5A25 and 5A14 rhythm playback processing begins.

Then, the judgment of 5EO3 in Fig. 14 becomes YES,
The program then advances to 5E19 to begin processing the ending rhythm pattern.

At this point, at the perfect timing of the 16-step main rhythm pattern, play the ending rhythm 5 in Figure 3.
When W1057 is pressed, the value of the pattern change standby flag PTF is 0, so the determination of 5E19 is YES.
becomes. Therefore, in the next 5E21, among the ending rhythm patterns of FIG. 22 stored in the pattern memory 11106 of FIG. M1, the rhythm number register RR is
The ending rhythm pattern of the rhythm number corresponding to the value indicated by is read out sequentially from step 0, and then
Until the value of Re2O3 is determined to be 15 in the next step 5E22, the process proceeds to 5EO6 and rhythm sounds are generated in the ending rhythm pattern.

Then, 5AIO4SA22 → 5A25 in Figure 10
→The above rhythm playback process of 5A17 is repeated through the loop of 5A14 to 5A21, and when the value of RCIO3 becomes 15, that is, when the rhythm pattern to be generated next becomes the final 15 steps, the judgment of 5E22 is YES.
S, and the final Ste knob of the ending rhythm pattern is sounded at 5E23.

After this operation, the process jumps from 5E23 to the determination at 5F20 via the path shown in FIG. Then, since the judgment of 5F20 is No (the value of ACF is O in normal mode), 5
From F20, the process jumps to 5BO3 and subsequent processes via the route shown in FIG. 11 (■) in SAOl in FIG.

After this processing, after the initial processing of SAO1 in Fig. 10 is performed (processing after 5BO3 in Fig. 11), 5AO2
~Repeat the process of 5AO7, auto chord progression 5W1052, intro 5W1053 or start 5 in Figure 3
Wait until one of W1054 is pressed. In addition,
Initial settings of the rhythm number register RR and tempo data register TR of 5BO1 and 5BO2 in Fig. 11 are not performed, and when the star) SW1054 etc. is pressed next, automatic accompaniment starts with the previous rhythm number and tempo. .

In addition, in FIG. 19, the determination in 5JO6 is YES, and the process advances to 5J13, reads the GC step of the rhythm # indicated by RR in the ending screen progress data for normal mode (FIG. 7 (A)), and performs the subsequent processing. 5JO8, 5JO
9,5 JIO is the same as above. Through these processes, the normal mode ending screen is displayed on the display unit 115.

Note that if ending 5W1057 in FIG. 3 is pressed during the middle of the 16-step main rhythm pattern, the value of the pattern change standby flag PTF is l, so the determination in 5E19 in FIG. 14 is No and 5E20 is pressed.
Proceed to.

5E20, the main rhythm pattern color of the rhythm number corresponding to the value indicated by the rhythm number register RR among the main rhythm patterns of FIG. 22 stored in the pattern memory section 1.6 of FIG. Zum counter 1
The step corresponding to the counter value RC of 03 is read out.

That is, at the next 5EO8, the rhythm counter 10 in FIG.
Until RC of 3 is determined to be 15, the process advances to 5EO6 and rhythm sounds are produced using the main rhythm pattern.

Then, 5AIO → 5A22 → 5A25 → 5 in Figure 10
Through the loop from A14 to SA21, the normal mode display progressing process in 5A25 and the rhythm playback process in 5A14 are repeated, and when the value RC of the rhythm counter 103 reaches 15 at 5EO8 in FIG. When the desired rhythm pattern reaches the final 15 steps, the judgment becomes YES, and after the judgment of the next 5EO9 becomes No (because it is normal mode, the value of ACF is 0), the pattern change standby flag PTF is set at 5EL2. The value of is returned to O, and the process advances to 5EO6, where the final step yp of the main rhythm pattern is sounded.

After this operation, 5AIO → 5A22 → 5A2 in Figure 10
5 → 5A14 ~ SA21 loop and return to 5A22
When entering the normal mode display progress process and the rhythm playback process in 5A14, the PTF is set to O, so 5E in FIG.
19 is YES, and for the subsequent 16 steps, rhythm sounds are generated in the ending rhythm pattern through the processing of 5EI9→5E21 +5E22→5EO6.

On the other hand, regarding the image displayed on the display unit 115, when the ending 5W1057 is pressed, the 5FO in FIG.
Since the determination in step 2 becomes YES and "3" is set in 5F15, the determination in step 5JOB in FIG. 19 becomes YES at this point, and the display of the ending image based on the ending screen progress data is started.

Then, when the rhythm sound generation process is repeated and the value of Re2O3 becomes 15, the judgment at 5E22 becomes No, and after the final step of the ending rhythm pattern is sounded at 5E23, the automatic At the same time as the accompaniment movement ends, the image display ends.

When starting the playback operation of rhythm sound only, use the intro SW to select the above 5.
A10 → 5A22 → 5A25 → 5A14 ~ SA21 loop allows normal mode progress processing of 5A25 and 5A1
The operation when the performer presses the intro 5W1053 in FIG. 3 to start the rhythm reproduction process in step 4 will be described. In this case, first, rhythm tones for 16 steps are generated using the intro rhythm pattern, and then the rhythm tones are generated using the main rhythm pattern.

First, in the standby state due to the processing loop of 5AO2 to 5AO7 in FIG.
When you press 053, the judgment of 5AO6 becomes YES, and 5
Proceeding to AO8, the value 2 is set in the pattern register PR to enter the intro rhythm pattern mode. After that,
In the same way as when the start 5W1054 (Figure 3) was pressed, each judgment of 5AIO1SA22 (7) becomes No, and 5
A25 normal mode display progress processing and 5A14 rhythm playback processing are entered.

In this case, the determination of 5EO2 in Fig. 14 is YES and 5
Proceed to E27. At step 5E27, among the intro rhythm patterns shown in FIG. 22 stored in the pattern memory section 106 shown in FIG. 1, the intro rhythm patterns of the rhythm number corresponding to the value indicated by the rhythm number register RR are sequentially read out from step 0.

After that, in the next 5E28, the value of Re2O3 in Figure 1 becomes 15.
Until it is determined that this is the case, the process proceeds to 5EO6 and rhythm sounds are generated using the intro rhythm pattern.

Based on the above operation, 5AIO → 5A22 in Figure 10
→ 5A25 → 5A1 by loop of 5A14 ~ SA21
The rhythm reproduction process of step 4 is repeated.

On the other hand, in Figure 19, the determination of 5JOI is N05SJ
O2 judgment is YES (see Figure 11 5BII), 5J
The judgment in O3 is No (because it is at the start of the intro), and the process proceeds to 5JO5. Since the determination in 5JO5 is YES, the program advances to 5JI5 and reads the GC step of the rhythm # indicated by the rhythm number register RR in the normal mode intro screen progress data shown in FIG. 7(A).

From then on 5J08 → 5JO9 → 5JIO → 5JII4SJ1
By proceeding to step 2, the process advances to each step, and an image for each step is displayed on the display section 115.

When the value RC of the rhythm counter 103 reaches 15 at 5E2B in FIG. 14, that is, when the rhythm pattern to be generated next becomes the final 15 steps, the determination at 5E28 in FIG. 14 becomes YES. , 5E
Proceed to step 29. At 5E29, the contents of the pattern register PR are changed to 0, and preparations for transition to the main rhythm pattern are made.

After this process, it is determined whether ACF=1 or not (SE30
), since it is normal mode at this time, this judgment is NO.
Therefore, “0” is stored in GC and GOC (
SE31), and then proceeds to 5Eo6, where the final step of the intro rhythm pattern is sounded. Therefore, at the time when the automatic accompaniment of the intro rhythm pattern ends, the GC.

Both GOCs are set to 0''.

After the above operation, 1O Figure 17) SAIO-8A22→5
A25 → 5A14 ~ SA21 loop and return to 5A
When entering the normal mode display processing of 25 and the rhythm playback processing of 5A14, since PR was set to 0 at 5E29 of FIG. 14, 5J01.5JO5, 5JO6 (7
) Since the determination is No in each case, the display operation shifts to the normal mode main pattern. Further, since PR is set to 0, the determinations of 5EOI to 5EO3 in FIG. 9 become No, and the process shifts to the sound generation operation based on the main rhythm pattern.

As shown above, the performer can easily add an intro effect to the rhythm pattern by pressing the intro 5W1053 in FIG. can be obtained.

Above 5AIO-8A22-SA25 →SA14~SA
The operation when the performer presses the stop button 5W1055 in FIG. 3 while the normal mode display proceeding process and rhythm playback process of 21 are being repeated will be described.

In this case, in the various switching processes of SA21 in FIG. 10, the determination of 5FO3 in FIG. 15 is YES, and 5F20
Proceed to. Then, since the determination of 5F20 is NO (the value of ACF is 0 in normal mode), 5
The process jumps to BO3 and subsequent processes, the automatic accompaniment ends, and at the same time, the display operation of the display unit 115 ends. The subsequent processing is performed by the performer at the ending 5W105 in Figure 3.
The process is the same as when pressing 7.

Sakaikura where the accompaniment key was pressed during playback of only rhythm sounds 5A10 → 5A22 → 5A25 → 5A14 to SA2
While the rhythm playback process of 5A25 and 5A14 is being repeated by the loop of 1, the player presses the keyboard section 10 of FIG.
4, the operation in the case of C1 in FIG. 2 will be explained.

In this case, from the keyboard section 104 to the CPU101 in FIG.
Key information Kl shown in FIG. 4 corresponding to the pressed accompaniment key is input.

This input state corresponds to 5A22 in Fig. 10 while the rhythm sound is being generated.
is detected, and the determination is YES.

As a result, first, at 5A23, the accompaniment flag BF is set to 1, and the mode shifts to accompaniment mode.

Next, at 5A24, a food judge will be held. This is performed from the CPUl0I to the code judge section 108 in FIG.
This is a process in which the chord judge unit 108 determines the key code KC and octave code OC in the key information KI, and determines the root note and chord of the pressed accompaniment key.

Next, after performing normal mode display progress processing (SA2
5) , BF-4 is determined. 5A14) Since this determination becomes YES through the processing in 5A23, 5A1
In step 5, bass sound reproduction processing is performed.

This process is a process for accompaniment with a bass note at the pitch of the root note determined by the chord judge unit 108 in FIG. . Therefore, the details are also similar to the details of the rhythm reproduction process shown in FIG.

In this case, in the pattern memory section 106 of the jFI1 diagram,
A base pattern having the same structure as the rhythm pattern shown in FIG. 22 is stored.

That is, the base pattern consists of four patterns: a main pattern, a fill-in pattern, an intro pattern, and an ending pattern, and each pattern is composed of 16 step patterns for each rhythm #1 to #6. FIG. 23(C) shows the base pattern of each of the 16 steps in FIG. 22.

As shown in the figure, it is possible to specify whether or not one type of bass tone is to be produced for each step during automatic accompaniment using a two-way number of 0 or 1.

In conjunction with the above configuration, the bass playback process of 5A12 in FIG. 10 is performed in accordance with the rhythm playback process of 5A17, so that rhythm sounds based on the main rhythm pattern, fill-in rhythm pattern, ending rhythm pattern, and intro rhythm pattern can be reproduced. In synchronization with the playback process, the playback process of the bass sound based on the main bass pattern, fill-in bass pattern, ending bass pattern, and hint bass pattern is performed. That is, the operation when playing the bass sound for fill-in 5W1056, ending 5W1057, intro 5W1053, etc. in Fig. 3 is as follows.
This is exactly the same as when playing rhythm sounds.

Note that the bass note (which is a single note) is generated by the accompaniment tone generating section 110 shown in FIG.
is configured to be able to generate multiple musical tones in parallel through time-sharing processing.

Next, in 5A16, chord tone reproduction processing is performed. This process is a process for performing chord accompaniment using the chord determined by the chord judge section 108 in FIG. 1, and except for the chord specification, the same process as the rhythm reproduction process in 5A17 above is performed. Therefore, as in the case of bass sound reproduction, the details are
This corresponds to the details of the rhythm playback process shown in FIG.

In this case, the pattern memory section 106 in FIG.
A chord pattern having the same structure as the rhythm pattern shown in FIG. 2 is stored.

FIG. 23(b) shows the hood pattern of each of the 16 steps in FIG. 22. As shown in the figure, during automatic accompaniment, you can specify whether or not to generate one type of chord tone (3 to 4 notes are sounded as a chord at the same time) for each step.
Can be specified in decimal numbers.

In addition to the above configuration, since the chord playback process of 5A16 in FIG. 10 is based on the rhythm playback process of 5A17, the rhythm sound In synchronization with the playback process 11, chord tone playback processing based on the main chord pattern, the fill-in chord pattern, the ending chord pattern, and the introneed pattern is performed. That is, the fill-in 5 in FIG.
W1056, Ending 5W1057, Intro 5W
The operation when playing a chord tone such as 1053 is exactly the same as when playing a rhythm tone.

Note that the reproduction of the chord sound is performed by the accompaniment sound generation section 110 shown in FIG. 1, as described above. In this case, since the chord tones usually consist of 3 to 4 tones, these multiple tones are produced in parallel by time-sharing processing.

In the above bass tone and chord tone reproduction processing, the first
At 5A22 in Figure 0, once the accompaniment key 1042 (Figure 2)
After the key information Kl is input from , the accompaniment flag BF is set to 1 in 5A23, so from the next step onwards, the determination of 5AIO becomes YES, and furthermore, the determination of 5All becomes No, ( ACF because it is in normal mode
is O), the code is judged directly in 5A24. Therefore, when playing the bass note and chord note at each step by repeating the loop from 5AIO to SA21, if no new key information Kl is input, the same root note pitch and chord will be repeated, and the player will be If the accompaniment key 1042 in FIG. 2 is pressed anew, the pitch and chord of the root note will be changed accordingly.

As described above, when the performer presses the accompaniment key 1042 shown in FIG. By pressing the accompaniment keys 1042 one after another, automatic accompaniment can be performed while changing the pitch of the bass note and the chord type of the chord note at that timing.

At this time, on the display unit 115, the normal mode progress process shown in FIG. 19 is being performed, and the accompaniment key 1042 is
The display progresses regardless of the operation.

(Detailed operation of auto-chord progression mode) Next, detailed operation in the auto-chord progression mode during automatic accompaniment will be explained.

Auto chord progression mode processing First, when the performer turns on the power to the main unit (not shown), the standby state described in the above normal mode,
That is, in the repeated operations 5A02 to 5AO7 in FIG. 10, the performer repeats the autochord progression 5W10 in FIG.
When 52 is pressed, the determination in 5A05 becomes YES and the process proceeds to the auto chord progression mode process in 5AO9. This process is a standby process before starting the autochord progression operation, and its details are shown in FIG. 16.

First, in SGO1, go to the autocode progress flag ○F,
A value 1 indicating the auto chord progression mode is set.

In the next 5GO2, the auto chord progression 5W10 in Figure 3
The LED above 52 is lit to notify the performer that the auto chord progression mode has been entered.

Subsequently, in 5GO3, the accompaniment flag BF is set to a value 1 indicating that accompaniment is in progress. This is because in the autochord progression mode, an accompaniment operation using bass notes and chord notes is always performed.

Furthermore, in 5GO4, tempo data TD corresponding to the rhythm number currently designated by the rhythm number register RR is set in the tempo data register 9TR.

Now, the court progress memory section 107 in FIG.
Tempo data TD is stored as a rhythm header corresponding to each of rhythm numbers #1 to #6 as shown in the figure. Details of the tempo data TD are shown in FIG. 25.

As shown in the figure, the tempo data TD is 5-bit binary data, and can specify a tempo from 0 to 31. By having tempo data TD corresponding to each rhythm number, each time the performer switches to rhythm 5W1051 in FIG. 3, the tempo data TD corresponding to the selected rhythm number is stored in the chord progression memory in FIG. The data is read from the rhythm register of section 107 and set in the tempo data register TR. This is because, for example, rock has a fast tempo and waltz has a relatively slow tempo, so when the rhythm is switched, the optimum tempo is automatically set.

Furthermore, initial display processing is performed in 5GO5, the contents of which are as outlined with reference to FIG.

After processing SGO1 to 5GO5 above, 5G06 to 5G1
By repeating step 2, each switch enters the state of waiting for human power.

In other words, in the auto chord progression mode, 5GO7,5
Through each determination process of GO8 and 5GO9, the performer
By pressing either star 1-3 WI054, rhythm 5W1051, or intro 5W1053 in the figure, the auto chord progression mode starts. Each of these will be described later.

Here, 5GO6 is a process that allows the performer to arbitrarily change the tempo when performing automatic accompaniment from now on using tempo up 5WIO58 or tempo down 5W1059 in FIG. 3 while waiting in the auto chord progression mode. , is the same as the tempo processing of 5AO2 in FIG. 10 during normal mode standby (see FIG. 12).

Further, 5G12 is a process for exiting the auto chord progression mode and returning to the initial state again when the performer presses the auto chord progression 5W1052 in Figure 3 again while waiting in the auto chord progression mode. . That is, when auto chord progression 5W1o52 is pressed, the determination in 5G12 becomes YES, and as a result, in 5G13, the value of the auto chord progression flag ACF is returned to 0, returning to normal mode, and further, in 5G14, as shown in FIG. The LED above the auto chord progression 5W1052 is turned off.

After these operations, the process jumps from 5G14 to steps 5BO3 and subsequent steps via the route shown in 5A01 in FIG. The subsequent processing is performed when the performer performs the ending 5W10 in Figure 3 in normal mode.
This is the same process as when the automatic accompaniment ends when 5.7 is pressed.

Autochord Advance'-Process When the performer presses either Start 5W1054 or Rhythm 5W1051 in FIG. 3 while waiting in the autochord progression mode shown in FIG. 16, 5GO6 to 5G12, autochord progression processing begins. Note that the case where the intro 5W1053 is pressed will be described later.

First, if Start 5W1054 is pressed, 5GO
8 becomes YES, the autochord progression mode process of 5AO9 in FIG. 10 ends, and the process proceeds to the autochord progression process of 5A12.

Further, if any of the rhythm S'W1051 is pressed, the determination in 5GO9 becomes YES and the process proceeds to 5C10.

In 5GIO, a value corresponding to the rhythm number of the pressed rhythm 5W1051 is set in the rhythm number register RR to switch the rhythm. Furthermore, in the next 5GII, the tempo data TD corresponding to the rhythm number selected in the rhythm number register RR is set in the tempo data register TR, similar to the operation in 5GO4. After these processes, the autochord progression mode process of 5AO9 in FIG. 10 is ended, and the process proceeds to the autochord progression process of 5A12.

As described above, start 5W1054 or rhythm 5
When W1051 is pressed, the auto food progress process shown in FIG. Then, the processes from 5AIO to SA21 in FIG. 1O are repeated. In this case, the determination of 5AlO is YES because the accompaniment flag BF is set to 1 in 5GO3 in FIG. 16, and the determination of 5AIL is also YES in S
Since the autocode progress flag ACF is set to 1 in GO1, the result is YES. Therefore, in the auto code progression process, 5AIO → 5AIL → 5A12 → 5A13 → 5A
The loop process from 14 to SA21→5AIO is repeated. This process will be explained below.

First, in the loop of 5AIO to 5A21, 5A17
The rhythm playback process is exactly the same as the rhythm playback process in the normal mode, and the rhythm tones are repeatedly generated in a 16-step rhythm pattern. Furthermore, the bass playback process of 5A15 and the hood playback process of 5AlB are similar to the operations when the performer presses the accompaniment key 1042 in FIG. Repeat accompaniment with bass notes and chord notes in a chord pattern. That is, for example, the production of rhythm tones of the same rhythm pattern, bass tones of the same bass pattern, and chord tones of the same chord pattern are repeated for each measure. In addition, the rhythm pattern,
The base pattern and the code pattern are each independent patterns.

In the above operation, the pitch during the bass playback process and the chord type during the chord playback process were specified by the performer sequentially using the accompaniment keys 1042 shown in FIG. 2 in the normal mode. mode, these specifications are automatically made over multiple measures,
A major feature of this is that the burden on the performer is significantly reduced.

In order to realize the above operation, chord progression data having a structure as shown in FIG. 24 is stored in the chord progression memory section 107 connected to the CPU 101 in FIG. 1. As shown in the figure, the chord progression data includes the main chord progression,
It consists of four types of chord progressions: fill-in chord progression, intro chord progression, and ending chord progression, and each of these chord progressions is composed of 32 steps of chord progression data from O to 31 for each rhythm of #1 to #6. Ru.

FIG. 26 shows chord progression data for each of the 32 steps in FIG. 24. The scale data OTD specifies scale names such as A and F using 4-bit two-way data. The chord name data CD is based on 4-bit binary data, including minor (m), meji + - (M), and seventh (7th h).
etc. Therefore, the code type for each stage and stage is as follows:
It is determined by scale data OTD and chord name data CD. The tone length data OD is 4-bit two-way data that specifies how long each chord is to be sounded, and its minimum unit is one step of a rhythm pattern, etc.
It corresponds to 6th note, 8th note, etc.

The tone length data OD for each step is subtracted during sound generation, as will be described later, and when it becomes 0, the process moves to the next step. Note that the tone length data OD for appropriate steps up to the 31st step includes "111" indicating the end, as shown in FIG. 26 (the 31st step is shown in the figure).
1” (“F” in 18-way expression) data is included,
A code type with an arbitrary step length can be specified by using the following steps excluding this step.

In this case, the concept of the steps in FIG. 24 or 26 is different from the steps of the rhythm pattern, bass pattern, chord pattern, etc. in FIG. 22 or 23. That is, one step of the chord progression data corresponds to a plurality of steps such as a rhythm pattern defined by the note length data OD as described above. Hereinafter, in order to distinguish them, steps such as rhythm patterns will be referred to as pattern steps, and steps of chord progression data will be referred to as chord steps. Therefore, while the bass pattern and chord pattern repeat 16 pattern steps for each bar, the chord progression data that defines the bass pitch and chord type at that time is, for example, a chord of the 0th chord step, 01 note length, 8 , the code of the first code step is Am, the code of H is 8, the code of the second code step is F1
Set note length to 8, 3rd chord step chord to Off, note length to 4, 4th chord step chord to C1 note length to 4, etc.
...Then, the first 8 pattern steps of the first measure are a C chord, the next 8 pattern steps are an Am chord, the first 8 pattern steps of the second measure, and the second B are an F chord.
The next 4 pattern steps are G.

Chord, the last 4 patterns Ste Ab is C chord...
As the chords are specified, the automatic accompaniment progresses in the auto chord progression mode. Note that the bass pitch is specified, for example, by the root note (first note) of each chord.

Figure 10 5A1 for realizing the operation specified by the hood above
The details of No. 2 are shown in FIG. 17.

First, the determination for SHO1 is initially YES because the tone length counter OC is initially set to O in the initial processing of SAO1 in FIG. 10 (FIG. 11, 5BO9).

Next, check whether the value of the progression register SR is 1, 2, or 3 in 5HO2, 5HO3, and 5HO4, 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. When the performer presses Start 5W1054 or Rhythm 5W1051 in Figure 3, SA in Figure 10
Since the register is initialized to O in the initial processing of O1 (FIG. 11, 5BO6), this code progresses at first, and all determinations of 5HO2 to 5HO4 become No, and the process proceeds to 5HO5.

In 5HO5, the counter value of the chord counter CC is calculated from the main chord progression data corresponding to the rhythm number indicated by the rhythm number register RR among the main chord progression data shown in FIG. 24 stored in the chord progression memory section 107 shown in FIG. Performs processing to read the code step indicated by . Now, the value of the code counter CC is initialized to 0 in the initial processing of SAO1 in FIG.
(FIG. 5BIO), initially, the chord progression data of the 0th chord step knob is read out.

Next, until the final step, the judgment of 5HO6 is N
o and proceed to 5HO9. 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 5HIO, the tone length data OTD of the 0th chord step is set in the tone length counter OC.
In the following 5H11, the code name data CD is set in the code name register OCR. This completes the designation of the code type corresponding to the 0th code step.

After the above processing, in 5H12, the counter value of the chord counter CC is +1, in 5H13, the counter value of the tone length counter oC is -1, and in the next 5H13, as shown in FIG.
Terminates the autocode progression process.

Further, following 5A12, at <5A13, an auto chord progress display progress process is performed, the details of which are shown in FIG. That is, in SKO1, the value of the screen sound length counter GOC is “
If this determination is YES, it is determined whether the tone length data COD is "F". If this determination is YES, "0" is set in the screen counter GC. After setting (SKO3), whether 5R=1 or not (SKO4)
, 5R=2 or not (SKO5), 5R=3 or not (SKO5)
Determine KO6). If all of the determinations for 5KO4 to 5KO6 are No, this is the main pattern, and the GC step of the rhythm # indicated by RR in the main pattern screen progress data for autochord progression is read (SKO7). From then on, the processing from 5K09 to 5K12 is the same as the 19th process described above.
The processing is similar to the processing from 5JO8 to 5J12 in the figure.

Note that cases where the determination of 5KO4, 5KO5, and 5KO6 is YES will be described later.

After the above processing, it is determined in 5A14 whether or not it is BF-4, and if this determination is YES, bass playback processing is performed in 5A15, but at this time, the ω scale is set in the scale code register 0TCH. The scale corresponding to the scale data OTD of the 0th chord step is specified.

Furthermore, chord reproduction processing is performed in 5A16, but the chord type at this time is the scale data OTD of the O-th chord step set in the scale code register 0TCH and the chord name data CD set in the chord name register OCR. specified based on.

In addition to the above bass playback processing and chord playback processing, the first
By performing the rhythm reproduction process at 5A17 in FIG. 0, the automatic accompaniment for one pattern Ste knob is completed.

Thereafter, by repeating 5A18, the timer clock is input from the timer clock generator 102 in FIG. 1, and 5A1
At 9, Re2O3 in FIG. 1 is counted up. Then, after undergoing the processing of 5A20.5A21 (described above),
Each judgment of 5AIO and 5AIL becomes YES, and 5AIO and 5AIL are judged as YES.
A12 autochord progression processing is performed. In this case, the first
In SHO1 in Figure 7, the tone length data OD of the 0th chord step was set in the tone length counter OC last time, so
Until the value becomes O, the determination of SHO1 becomes NO.

In this case, only the process of decrementing the counter value of the tone length counter OC by 1 is performed at 5H14, and the autochord progression process of FIG. 1O, 5A12 is completed.

Therefore, the base playback process of 5A15 and 5A of FIG.
In the chord reproduction process No. 16, the same scale and chord type as those of the previous pattern step knob are specified.

The same is true for 5JOI in FIG. Since the screen sound length data COD of 5JO2 has been set, the determination of 5JO2 will be NO until its value becomes 0.

Therefore, in this case, only the process of decrementing the value of the screen tone length counter GOC by 1 is performed in 5J12, and the autocode road display progress process of FIG. 10, 5A13, is ended.

The above state continues until the value of the tone length counter OC is subtracted to 0, that is, the tone length data 2 of the 0th chord step.
until the pattern step of 00 minutes is repeated, and
This is repeated until the screen sound length counter reaches O, and therefore,
During that time, the open image continues to be displayed on the display unit 115.

Then, if the value of the tone length counter OC is determined to be 0 at 5)(01 in FIG. 17), the determination of 5HO2 to 5HO4 is YES.
After reaching S, at 5HOF), a process is performed to read out the chord step indicated by the counter value of the chord counter CC from among the main hood progress data corresponding to the rhythm number indicated by the rhythm number register RR. Now, the food counter CC is 5) 1 at the beginning of reading the 0th step.
Since it is +1 at 12, it points to the value 1, and therefore,
Here, the hood progress data of the first code step is read out. Then, as in the 0th food step above, the contents of the tone length counter OC, scale code register 0TCR, and chord name register CCR are set in 5H09 to 5H11 to correspond to the chord progression data of the 1st chord step, and in 5H12. The value of the chord counter CC is incremented by 1, and the value of the tone length counter OC is incremented by -1 at 5HL4, and the chord progression process of 5A12 in FIG. 10 is completed.

As a result of the above processing, in the bass playback process 5A15 and chord playback process 5A18 in FIG. 10, the scale and chord type are specified based on the scale data OTD and chord name data CD of the first chord step, and this state is The pattern continues until the step tone length of 200 minutes is repeated.

The above operation is repeated while sequentially reading out each code step of this chord progression data, and in FIG. 12 5HO5,
When the last chord step of this food progression data is read out, the tone length data OD is "F" in hexadecimal representation as described above, so the determination of 5HO6 is YE.
It becomes S. As a result, the code counter CC is reset to 0 at the next 5) IO'7, the chord progression data of the 0th chord step is read out again at 5H08, and 5H09
Repeat the following process.

Therefore, when the main chord progression data is read and the final chord step is reached, this code step is not read out, and the program returns to the 0th chord step again to repeat the same chord progression.

On the other hand, if the value of the screen sound length counter GOC is determined to be 0 at 5KOI in FIG. After the judgment of 5KO4 to 5KO6 becomes No, in 5KO7, the counter value of the screen counter GC is selected from among the main chord progression data corresponding to the rhythm # indicated by the rhythm number register RR in the main pattern screen progress data for auto chord progression. Performs processing to read the code step shown. Now, the screen counter GC is incremented by 1 by 5KII at the beginning of the 0th step reading, so the value l
Therefore, the screen progress data of the first step is read out here. Then, similarly to the 0th code step above, the screen sound length counter GOC is set at 5KO8 to 5K12.

The contents of the screen number register GNH are set to correspond to the screen progress data of the first step, and the screen # indicated by GNH in the screen memory part 13 is read and transferred and displayed on the display section 115 (SKO9). . And 5K1
1, the value of the screen counter GC is incremented by 1, and 5K12, the value of the screen sound length counter GOC is decremented by 1, and the value of the screen sound length counter GOC is incremented by 1 at 5K12.
13 ends the ode chord progression process.

As a result of the above processing, in the bass playback process 5A15 and chord playback process 5A16 in FIG. 10, the scale and food type are specified based on the scale data OTD and chord name data CD of the first chord step, and this state is The pattern step continues until the step tone length of 700 minutes is repeated.

The above operation is repeated while sequentially reading out each code step of this chord progression data, and in FIG. 17 5HO5,
When the last chord step of this chord progression data is read out, as mentioned above, the tone length data OD is "F" in hexadecimal representation, so the determination of 5HO8 is YE.
It becomes S. As a result, the chord counter CC is reset to 0 in the next 5HO7, the chord progression data of the 0th chord step is read out again in the 5HO8, and the processing from 5HO9 onwards is repeated.

Therefore, when the main chord progression data is read and the final chord step is reached, this code step is not read out, and the program returns to the 0th chord step knob and repeats the same chord progression.

Further, at 5KO8 in FIG. 20, the step number C0D=F is read out in the screen progression data for chord progression.

! A. The decision for 5KO2 is YES.

As a result, the screen counter GC is reset to 0 at the next 5KO3, the 0th step screen progress data is read again at the 5KO7, and the processing from 5K08 onwards is repeated.

During the above autochord progression process, the performer can perform tempo up 5W105B or tempo down 5W10 in Fig. 3.
By operating 59, the value of the tempo data register TR can be changed at 5A20 in FIG. This process is
It is exactly the same as the tempo processing of 5AO2, and the first part is
This is shown in Figure 2.

Next, the operation when the rhythm is switched during the autochord progression process will be described. This process is similar to the process when the rhythm is switched during the operation of reproducing only the rhythm sound. However, in the auto chord progression mode, as already explained, the chord progression memory section 10 of FIG.
A rhythm header as shown in Fig. 24 is stored in 7.
When the rhythm is switched, the tempo data is also switched accordingly. Therefore, it is necessary to add this processing.

That is, first, the determination of 5FO7 in FIG. 15 is YES,
In other words, if the rhythm is switched at exactly the right timing of the 16-step main rhythm pattern, in normal mode, after the judgment of 5FO8 becomes NO, 5
I had set the pattern change standby flag PTF to 0 in FII, but when processing the autochord progression, the judgment of 5FO8 was YES, and then the judgment of 5FO9 was No (the value of the pattern register PR is currently set to 0) 0 because of the pattern), proceed to 5F10.

Here, similar to the operation of 5GO4 in FIG. 16, the tempo data TD corresponding to the rhythm number set in the rhythm number register RR in 5FIO of FIG. 15 is set in the tempo data register TR. After this process, the pattern change standby flag PTF is set to O at 5FII, as in the normal mode, and the various switching processes shown in FIG. 10 are completed.

On the other hand, in the normal mode, the rhythm is switched in the middle of the 16-step main rhythm pattern.
By executing the processing of 5EO7 → 5EO8 → 5EO6, after the main rhythm pattern before the rhythm is switched, when the break is at a good timing, the determination of 5EO9 in FIG. 14 becomes YES, and furthermore, The judgment was NO, so I set the pattern change standby flag PTF to 0 at 5E12 and switched the rhythm.
During the autochord progression process, when the break is at a good timing, the determination at 5EO8 in FIG. 14 becomes YES, and then the determination at 5EO9 becomes YES. Furthermore, since the judgment of 5EIO is NO (because the current PR value is 0), 5EIO
11, the tempo data TD corresponding to the rhythm number set in the rhythm number register RR in 5FO6 of FIG. 15 is set in the tempo data register TH, similar to the operation of 5GO4 in FIG. 16. And then 5
At E12, the pattern change standby flag PTF is set to 0.

As described above, when the rhythm is switched, the contents of the tempo data register TR are changed to a new value, and thereafter, the timing at which the timer clock is input is determined at 5A1B in FIG. 10 according to the contents of this register. 5A
At step 20, the speed at which Re2O3 in FIG. 1 is counted up is determined.

Note that if the rhythm is switched in the middle of the 16-step main rhythm pattern, in the rhythm playback process of the first OESA 14, the rhythm will be played after the main rhythm pattern before the rhythm is switched to a good timing. The main bass pattern in the bass playback process of 5A15 and the main chord pattern in the chord playback process of 5A16 are the same, but the main chord progression data in the auto chord progression process of 5A12 changes the rhythm. At 5HO5 in FIG. 17, the chord progression data is immediately switched to the main chord progression data corresponding to the new rhythm number indicated by the rhythm number registers R, R. Also, 5A
The main chord screen progress data in the auto chord progression display progress process of 13 is the same, and when the rhythm is switched, the main chord screen progress data corresponding to the new rhythm # indicated by the rhythm number register RR is immediately displayed at 5KO7 in FIG. 20. It operates to switch to .

When the fill-in SW is pressed during auto-chord progression processing When the performer presses the fill-in 5W1056 in Figure 3 while the automatic accompaniment in the auto-chord progression mode is being repeated by the loop from 5AIO to SA21 in Figure 10 above. We will explain the operation in this case.

In this case, in the rhythm playback process of FIG. 10, 5A17, as in the normal mode, the SEO1 of FIG.
-8E 13 → SE 14 → 5EO6 is repeated, so that when the fill-in SW 1056 is pressed, the main rhythm pattern immediately changes to the fill-in rhythm pattern. The same applies to the base pattern and chord pattern in the 5A15 bass playback process and the 5A16 hood playback process.

On the other hand, in the auto chord progression process of 5A12, the content of the progression register SR does not change just by pressing the fill-in 5W 1056, but indicates the value O, that is, the main chord progression. Then, in the Norism reproduction process in FIG. 14 (10th rIASAL?), the contents of SR are 0 until the pattern step, y step of the fill-in rhythm pattern reaches the final 15th pattern step and the determination in 5E14 becomes YES. Therefore, the processing state in FIG. 17 does not change, and this chord progression is maintained.

In the rhythm playback process shown in FIG. 14, when the pattern step of the fill-in rhythm pattern reaches the 15th and final step and the determination in 5E14 becomes YES,
At step 15, the pattern register PR is set to 0 and the program returns to the main rhythm pattern.

On the other hand, since the progress register SR is set to 1 at 5E16, the chord progression data becomes a fill-in chord progression. Then, at 5E17.5EI8, the counter values of the code counter CC, tone length counter OC1, screen counter GC, and screen tone length counter GOC are forcibly set to O. At this time, the base pattern and chord pattern have also returned to the main pattern in the bass regeneration process of FIG. 10, 5A15, and the hood regeneration process of 5A16.

As a result, the determination of SHO1 in FIG. 17 is YES,
Furthermore, the determination of 5HO2 becomes YES, and the process proceeds to 5H15. Then, from among the fill-in chord progression data corresponding to the rhythm number indicated by the rhythm number register RR, a process is performed to read out the chord step indicated by the counter value of the chord counter CC, that is, the 0th chord step.

After this, 5H17 → 5HO9 → 5HIO-43H11
→5H12 →5H14, and the cent of the 0th chord step of the fill-in chord progression data is performed.

Below, it operates exactly the same as in the case of this chord progression data,
In the bass playback process 5A15 and the chord playback process 5A16 in FIG. 10, the scale and chord type are specified by the scale data OTD and chord name data CD of the 0th chord step based on the fill-in chord progression data, and this state is This continues until the pattern steps corresponding to the step's tone length data OD are repeated.

Then, when the value of the tone length counter OC is determined to be 0 in SHO1 in FIG. 17, the SHO1 → 5H02 → 5H15
Then, fill-in chord progression data for the next first step is read out, and sound generation processing is performed based on this data.

The above operation is repeated while sequentially reading each fill-in chord progression day 9 (D), and the 17th E
When the last chord step of the fill-in chord progression data is read out in SH17, the tone length data OD is expressed as "F" in hexadecimal as described above.
The determination in 5H17 becomes YES. This allows the next 5H
At 1B, the progress register SR is returned to O, and the program returns to the main code progress mode. Then, in 5H19, the chord counter CC is reset to 0, and in 5HO5, the chord progression data of the 0th chord step of the main chord progression is read out, and from then on, the main chord progression is used.

Further, in the auto chord progression display progress process of 5A13, the counter values of the screen counter GC and the screen sound length counter GOC are forcibly set to 0 in 5E18 as described above. As a result, the determination of 5KOI in Figure 20 is YES.
Then, after the judgment of 5K02 became No, 5K
The O4 decision is YES and the process proceeds to 5K14. and,
Here, the step of the screen counter GC of the rhythm # indicated by the rhythm number register RR in the auto food progress fill-in screen progress data is read. After this, 5K08→
Proceed as 5KO9 → 5KIO → 5K11 → 5K12.

Then, at 5KOI in Figure 20, the screen sound length counter GOC
If the value of is determined to be 0, 5HO1 → 5HO2 → 5
The process advances to H15, and the fill-in screen progress data for the next first step autochord progression is read out, and based on this data, the data is transferred and displayed on the display section 115.

The above operation is repeated while sequentially reading out each screen step of the fill-in screen progression data for auto chord progression, and at 5K14 in FIG. When the step is read out, the judgment of 5KO2 is YES
becomes. As a result, the screen counter GC will be reached in the next 5KO3.
is returned to 0, and the process from 5KO4 is repeated.

If the ending sw is pressed during auto chord progression processing, the performer presses the ending 5W1057 in FIG.
We will explain the operation when you press .

First, at the perfect timing of the main rhythm pattern of 16 chord steps, the ending 5W1057 is played.
When is pressed, in the various switching processes of 5A21 in FIG. 1O, the process proceeds from 5FO2 to 5F15 in FIG.
Progressing in the order of 5FO8→5FO9→5FII, the counter values of the tone length counter OC and chord counter CC are reset to 0, and the value 3 is set in the progress register SR. Then, the process advances to 5FII and the pattern change standby flag PTF is set to 0. Due to the above startup operation, the value of the pattern change standby flag PTF is 0 in the rhythm playback process of 5A17 in FIG.
→5E24, and the ending rhythm pattern is sequentially read out from pattern step 0. 5 in Figure 10
The same applies to the base pattern and chord pattern in the A15 bass reproduction process and the 5A16 chord reproduction process.

On the other hand, in the auto chord progression process of 5A12, in Fig. 17, 5HOI → 5HO2 → 5HO3 → 5H
Proceed to O4, 5HO4 decision becomes YES, 5H13
Proceed to. Here, among the ending chord progression data of FIG. 24 stored in the chord progression memory section 107 of FIG. 1, the ending chord progression data corresponding to the rhythm number indicated by the rhythm number register RR is selected.
A process is performed to read out the code step indicated by the counter value of the code counter CC, that is, the 0th code step. And after this, 5HO9 → 5HIO → 5HII → 5H
The process advances from 12 to 5H14, and the 0th code step of the ending code progression data is set.

Below, the operation is exactly the same as in the case of this code road trip data,
In the bass playback process 5A15 and the chord playback process 5A16 in FIG. 10, sound is produced using the scale and chord type based on the ending chord progression data.

On the other hand, in FIG. 20, when GOC=O, the processing after 5KO2 is executed, and the determination for 5KO6 becomes YES. Therefore, the process advances to 5K13 and reads 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 autochord progression (S K l 3). From then on, 5KO8 → 5KO9 → 5KIO-SKI as described above.
The process proceeds from I to 5K12, and the ending screen is displayed while incrementing the value of the screen counter GC.

On the other hand, if the ending 5W1057 in FIG. 3 is pressed in the middle of the main rhythm pattern of 16 chord steps, in the various switching processes of SA21 in FIG.
In FIG. 15, the process proceeds from 5FO2 to 5FI5, and the value 3 is set in the pattern register PR, and at this time, the threshold counter 10
Since the value of 3 is not O, the process advances to 5F16 and the pattern change standby flag PTF is set to 1.

As a result of the above operation, the value of the pattern change standby flag PTF is set to 1 in the rhythm playback process of FIG. 5A17.
Therefore, as in the case of normal mode, 5EO3
→ 5E19 → 5E20 and read out the steps of this rhythm pattern.

The same applies to the base pattern and chord pattern in the bass reproduction process of 5A15 and the chord reproduction process of 5AI6 in FIG.

On the other hand, in the auto chord progression process of 5A12, since the value of the progression register SR is still 0, indicating the main chord progression, reading of the above-mentioned main chord travel data is continued. Therefore, in the bass playback process of 5A15 and the chord playback process of 5A16 in FIG. 1O, the scale and chord type are specified and produced by the scale data OTD and chord name data CD of each chord step based on the present chord path data.

Then, the automatic accompaniment process by the loop from 5AIO to SA21 in FIG. 10 is repeated, and when the value of the rhythm counter 103 in FIG. 1 reaches 15 at 5EO8 in FIG. 14, the determination becomes YES. →Proceed to 5EO9. Then, the value of the pattern register PR is
12 is 3, so the judgment of 5E10 is YES and the sequence progresses from 5E24 to 5E25 to 5E26, and the value 3 is set in the progress register SR, and the note length counter O.
The counter values of C, code counter CC1, screen counter GC, and screen sound length counter GOC are reset to O (y). Then, the process proceeds to 5E12, where the pattern change standby flag PTF is set to 0.

After the above process, in the rhythm playback process of FIG. 10, 5A17, the value of the pattern change standby flag PTF is O.
Therefore, the ending rhythm pattern is sequentially read out in the order of 5EO3 → 5EI9 → SE21, and the 10th
The same applies to the base pattern and chord pattern in the bass reproduction process 5A15 and the chord reproduction process 5A16 in the figure. In addition, in the auto chord progression process of 5A12, in FIG. 17, SHO1 → 5HO2 → 5HO3 → 5
Proceed to HO4, 5HO4 decision becomes YES, 5H1
Proceed to step 3 to read the ending code progress data,
In the bass playback process 5A15 and the chord playback process 5A16 in FIG. 10, sound is produced using the scale and chord type based on the ending chord progression data.

Then, the automatic accompaniment process is repeated through the loop from 5AIO to SA21 in FIG. 10, and the rhythm counter 1 in FIG.
When the value of 03 becomes 15, that is, when the next rhythm pattern to be sounded is the final 15 steps,
The determination at E22 is NO, and the final step of the ending rhythm pattern is sounded at 5E23.

After this operation, the process jumps from 5E23 to the process of 5F20 via the route shown in FIG. Note that the ending chord progression is forcibly ended at the end of the ending rhythm pattern. Then, since the determination at 5F17 in FIG. 10 is YES (the value of ACH is 1 in the autocode progression mode), various flags, counters, and registers are reset to initial settings at 5F21 to 5F2B, and after that, the 16th The process jumps to the process after 5GO6 via the route ◯ in the figure, and the automatic accompaniment ends. After this processing, the processing of 5G05 to 5G12 is repeated, and the process waits until either the star SW 1054, the intro 5W 1053, or the rhythm 5W 1051 in FIG. 3 is pressed. In addition, the rhythm number register R
R and tempo data register TH are not initialized, and when start 5W1054 or the like is pressed next, automatic accompaniment starts at the previous rhythm number and tempo.

Furthermore, in FIG. 16, since the autochord progression mode is on standby, the autochord progression flag ACF and the accompaniment flag BF remain as they were.

On the other hand, in the auto code progress table water row process of FIG.
3, the process starts from the step of the screen counter GC of the rhythm # indicated by the rhythm number register RR in the ending screen progress data for auto chord progression. In other words, the 15th
5FO7, 5FOB, and 5FO9 in the diagram are YES,
When the processing of 5F12 to 5F14 is completed, the display of the ending screen will start, and as a result,
The ending screen is displayed in synchronization with the start of the ending automatic accompaniment.

Furthermore, since both the ending code progression 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, making it possible to display images that match the automatic accompaniment.

Fig. 10 5 AO9 auto chord progression mode processing first
The 10th
The operation when the performer presses the intro 5W1053 of FIG. 3 to start the autochord progression process of 5A12 in the figure will be described.

In this case, first, the determination at 5GO7 in FIG. 16 is YES and the process proceeds from 5G15 to 5G16, where the value 2 is set in the turn register PR and the progress register SR, and the intro rhythm pattern mode is entered. Thereafter, in the same way as when the start 5W1054 (FIG. 3) is pressed, the process proceeds to the autochord progression process of FIG. 10, 5A15.

Below, by the loop from 5AIO to SA21 in Figure 10,
The automatic accompaniment in auto chord progression mode is repeated, but
In the rhythm playback process of 5A17 in FIG. 10, as in the normal mode, 5EO2→5E27 in FIG.
By repeating the process of →5E28 →5EO6, automatic accompaniment starts with the intro rhythm pattern.

Then, the automatic accompaniment with the intro pattern is repeated for 16 pattern steps, and the rhythm counter 103 (first
When the value CR in the figure) becomes 15, the determination at 5E2B becomes YES, and the pattern register PR is set to 0 at 5E29. After that, it is determined in 5E30 whether ACF=1 or not, and since AFC=1 in auto chord progression mode, the final intro rhythm pattern is sounded in 5E06, and then the main rhythm pattern is started. .

The same applies to the base pattern and food pattern in the bass reproduction process of 5A15 and the chord reproduction process of 5A16 in FIG. 10.

Next, in the auto chord progression process of 5A12, the value of the progression register SR becomes 2 by pressing the intro 5W1053, and since the value of the note length counter OC is 0 at the start as already explained, The judgment of SHO1 in Fig. 17 is .

After YES and 5HO2 judgment becomes NO, 5H
The determination at O3 is YES, and the process proceeds to 5H16. Here, among the intro chord progression data, the chord counter CC of the rhythm # indicated by the rhythm number register RR is
The code step indicated by the counter value, that is, the 0th code step is read out. After this, 5H17→
The sequence progresses in the order of 5HO9→5H10→5H11→5H12→5H14, and the 0th chord step of the intro chord progression data is set.

Below, it operates exactly the same as in the case of this chord progression data,
In the bass playback process of 5A15 and the chord playback process of 5A16 in FIG. 10, the scale and chord type are specified by the scale data OTD and chord name data CD of the 0th chord step based on the intro chord progression data, and this state is This continues until the pattern steps corresponding to the step's tone length data OD are repeated.

Then, in SHO1 of FIG. 17, the value of the tone length counter OC becomes 0! When 1 is fixed, SHO1 → 5H02 → 5HO again
3→5H16, the intro chord progression data of the next first step is read out, and sound generation processing is performed based on this.

The above operation is repeated while sequentially reading each code step of the intro chord progression data, and as shown in FIG.
When the last food step of the intro chord progression data is read out, the tone length data OD (see FIG. 26) is "F" in hexadecimal representation, so the determination of 5H17 becomes YES. As a result, the progress register SR is returned to 0 in the next 5H1B, and a transition is made to the main code progression mode. Then, in 5H19, the chord counter CC is reset to 0, and in 5H20, the screen counter GC and screen tone length counter GOC are reset to 0, and in 5HO5, the chord progression data of the 0th chord step of the main chord progression is read out. After that, the chord progression will be as follows.

On the other hand, in FIG. 20, at this starting point, GOC-
Since it is 0, the process after 5KO2 is executed, and the determination for 5KO5 is YES. Therefore, 5K1
Proceed to step 5 and read the step indicated by the screen counter GC of the rhythm # indicated by the rhythm number register RR in the intro surface road data for autochord progression (S K l 8
”).From then on, 5KO8 → 5K as above.
The process proceeds from O9 to 5KIO-5KII 4isK12, and the intro screen is displayed while incrementing the value of the screen counter GC.

At this time, as illustrated in FIG. 29, if the screen number data GD of steps 0 and 1 are both #6 and the screen sound length data COD are both 8, then the total of steps 0 and 1 is The note length is one measure (COD=1 is
It is 16th note long. ). Therefore, the third
As shown in Figure 0, images #6 are displayed continuously within one measure. Also, the station in Figure 29
Since the screen number data GD of the knobs 2 to 5 steps are both #7 and the screen sound length data COD is 8, the total sound length of steps 2 to 4 corresponds to 2 bars. Therefore, as shown in Fig. 30, the second
And in the third bar, screen #7 is displayed continuously.

In FIG. 30, the initial screen #2 is displayed before the intro SW indicated by the dotted line is pressed.

When the stop SW is pressed during auto chord progression processing When the performer presses stop 5W1055 in Figure 3 while the automatic accompaniment in the auto food progression mode is being repeated due to the loop from 5AIO to 5A21 in Figure 10 above. We will explain the operation in this case.

In this case, in the various switching processes at SA21 in FIG. 10, the determination at 5FO3 in FIG. 15 becomes YES, and the process proceeds to 5F20. Then, since the judgment of 5F20 is YES (the value of ACF is 1 in auto chord progression mode), 5
Proceeding to F21, processing from 5F21 to 5F2B is performed, and after this, ending 5W1057 (Figure 3)
The automatic accompaniment ends in the same way as the automatic accompaniment ending process when is pressed.

In addition, at this time, after the screen sound length counter GOC1 screen counter GC is reset, 5GO6~
It stops in the standby state where it enters the 5G12 loop and ends the display.

〔Effect of the invention〕

As explained above, in the present invention, the screen data storage means stores individual screen data constituting the video as data related to the video displayed by the display means, and the screen progress data storage means stores the screen data. The first screen progress data and the second screen progress data, which are data related to the combination, are stored. Therefore, a moving image corresponding to the accompaniment pattern based on the first screen progression data and a moving image corresponding to the chord progression based on the second screen progression data can be obtained with a small storage capacity. Therefore, it is possible to obtain a sense of visual play not only according to the accompaniment pattern but also according to the chord progression, and it is also possible to display a video according to the accompaniment pattern or a video according to the chord progression. , can be freely selected by the selection means, so by arbitrarily selecting both, it is possible to obtain a great sense of visual play with a small storage capacity.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram of an embodiment of the present invention; FIG. 2 is an external configuration diagram of a keyboard section; FIG. 3 is an external configuration diagram of a switch section; FIG. 4 is a data configuration diagram of key information; FIG. 5 is an explanatory diagram of the display unit, FIG. 6 is a configuration diagram of a part of the screen memory, FIG. 7(A) is a configuration diagram of screen progress data for normal mode, and FIG. 7(B) is A configuration diagram of screen progress data for auto chord progression mode, FIG. 7 (C) is a configuration diagram of initial screen data for normal mode, FIG. 7 (D) is a configuration diagram of initial screen data for auto chord progression mode, FIG. 8 is a data configuration diagram of a part of the screen progress memory, FIG. 9(A) is an explanatory diagram showing an example of screen #l based on initial screen data for normal mode, and FIG. 9(B) is an auto code An explanatory diagram showing an example of screen #2 based on initial screen data for progress mode, FIG. 9(C) is a diagram showing an example of progress screen 1 screen $3 for /-mar mode, FIG. 9(D) is Progress screen 2 screen #4 for normal mode
A diagram showing an example, FIG. 9 (E) is normal mode progress screen 3 screen #5
A diagram showing an example, FIG. 9 (F), is the progress screen 1 for auto chord progression mode.
A diagram showing an example of screen #6, FIG. 9 (G) is progress screen 2 for auto chord progression mode.
Figure 10 is a diagram showing an example of screen #7, and Figure 10 is the main flowchart of this embodiment.
12 is an operational flowchart of the tempo processing of the same embodiment. FIG. 13 is an operational flowchart of the initial rhythm switching process of the same embodiment. FIG. 15 is an operational flowchart of the rhythm playback process of the same embodiment; FIG. 15 is an operational flowchart of various switching processes of the same embodiment; FIG. 16 is an operational flowchart of the autochord progression mode process of the same embodiment; FIG. 18 is an operation flowchart of the initial display processing of the same embodiment; FIG. 19 is an operation flowchart of the normal mode display progress processing of the embodiment; The figure is an operational flowchart of the autocode progression display progression process of the same embodiment. Figures 21 (a) to (0) are configuration diagrams of the flag counter register group (FOR). Figure 22 is the pattern memory. Fig. 23 (a)
) to (C) are data configuration diagrams of each pattern, Figure 24 is a configuration diagram of the chord progression memory section, Figure 25 is a data configuration diagram of tempo data, and Figure 26 is a data configuration diagram of each chord progression data. 27(A) is a configuration diagram showing normal mode screen progress data and shows main pattern screen progress data; FIG. 27(B) is normal mode screen progress data showing fill-in screen progress data. Fig. 28 is a block diagram showing an example of screen progress in normal mode; Fig. 29 is a block diagram showing an example of screen progress data for auto chord progression intro; Fig. 30 is a block diagram showing an example of screen progress data for auto chord progression intro. It is a block diagram which shows the screen progress example of progress mode. 101... Central control unit (CPU), 102... Timer clock, 103... Rhythm counter, 104... Keyboard section, 105... Switch section, 106... Pattern memory section, 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 part 114... Screen progress memory part 115...display section. Patent applicant Casio Computer Co., Ltd. (OF) (QC) (niC)-11
(1) When the head rolls over, data @ to a LCD display ξ) Fig. 5 Fig. 13 Fig. 18 (a) Fig. 23 Fig. 26 ail &, -ry bar data (GD)

Claims (1)

[Claims] (1) a plurality of performance operators, an accompaniment pattern storage means for storing a plurality of types of accompaniment patterns, and a first selection means for selecting one of the accompaniment patterns stored in the accompaniment pattern storage means; a first readout device that reads out the accompaniment pattern selected by the first selection device at a predetermined timing; a chord data generation device that generates chord data according to the operation of the performance operator; and chord progression order. a chord progression data storage means storing a plurality of types of chord progression data indicating the chord progression data; a second reading means for sequentially reading out the chord data stored in the chord progression data storage means at a predetermined timing; a second selection means for selecting either one of the chord progression data; the chord data or the chord progression data selected by the second selection means; and the accompaniment pattern read by the first reading means. an automatic accompaniment device comprising: a display means; a screen data storage means storing a plurality of types of screen data to be displayed on the display means; Screen progress data indicating a combination of a plurality of types of screen data stored in the means, including a plurality of first screen progress data corresponding to each of the accompaniment patterns and a plurality of first screen progress data corresponding to the chord progression data. a screen progress data storage means that stores the screen progress data of No. 2; and when any accompaniment pattern is selected by the first selection means, first screen progress data corresponding to the selected accompaniment pattern; a third reading means for sequentially reading out the chord progression data in synchronization with the first reading means; and when chord progression data is selected by the second selection means, a second reading means corresponding to the selected chord progression data;
a fourth readout means that reads out the screen progress data of the above in synchronization with the second readout means; and a fourth readout means that reads out the screen progress data of An automatic accompaniment device comprising: screen data supply means for sequentially reading out corresponding screen data from a screen data storage means and supplying the same to the display means.