JPH0827627B2 - Automatic playing device - Google Patents

Description

Detailed Description of the Invention

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic performance device that reads out performance data stored in a memory in advance and performs automatic performance, and in particular, enables smooth performance of input operation of performance data prior to automatic performance. The present invention relates to an automatic performance device that can "Prior Art" In general, an automatic performance device stores performance data for one song that has been input in advance in a memory, and when an automatic performance is instructed, the performance data for one song is sequentially output from the memory. The musical tone is generated based on the read performance data. [Problems to be Solved by the Invention] By the way, when storing performance data in a memory in a conventional automatic musical instrument (hereinafter referred to as a writing mode).
When the user records performance data of a plurality of performance patterns (hereinafter referred to as a pattern), and when the patterns stored during reproduction (hereinafter referred to as a reproduction mode) are sequentially read out as the music progresses, the write mode is used. However, in order to confirm what the pattern was like, the write mode was temporarily exited, the reproduction mode was set, and the pattern was actually reproduced and confirmed. For this reason, it is necessary to switch between the write mode and the playback mode each time writing and checking are performed, and the checking operation is bothersome, and the writing and checking operations cannot be switched immediately, resulting in poor work efficiency. It was The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide an automatic performance device capable of eliminating the troublesomeness involved in the confirmation work of a pattern written in the writing mode and improving the work efficiency. Has an aim. "Means for Solving the Problem" The present invention relates to a mode designating means for designating either a writing mode or a reproduction mode, a writable storage means for storing performance information of a musical composition, and performance information input. Input means for writing, and a writing means for writing the performance information input by the input means in the storage means when the writing mode is designated by the mode designating means, a confirmation instruction operator, and the mode designation When the writing mode is designated by the means, in response to the operation of the confirmation instruction operator, based on the performance information related to the predetermined section in which the performance information is written immediately before by the writing means, Confirmation means for performing an automatic performance of a section and returning to the written state again after the automatic performance of the section is finished, and when the reproduction mode is designated by the mode designating means, it is stored in the storage means. It is characterized by further comprising: a performance means for sequentially reading out the performance information that is being played as the music progresses and performing an automatic performance based on the read performance information. [Operation] According to the above configuration, when the confirmation instruction manipulator is operated in the writing mode, in response to the operation, the confirmation means is related to the predetermined section in which the performance information is written immediately before by the writing means. The automatic performance of the section is performed based on the performance information, and after the automatic performance of the section is completed, the writing state is restored again. That is, in the writing mode, even if the operation for switching from the writing mode to the reproducing mode is not performed, the performance information of a predetermined section, for example, the performance information for one measure can be confirmed by operating the confirmation instruction operator. Then, when the confirmation is completed, the writing state is automatically restored again. As a result, it becomes possible to perform the confirmation work of writing the performance information extremely smoothly and in a short time. [Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

【Constitution】

FIG. 1 is a block diagram showing the configuration of an electronic musical instrument to which the automatic musical instrument according to the embodiment is applied. This electronic musical instrument basically has two functions,
The first is a melody playing function as a normal electronic organ, that is, a basic function of generating a musical tone corresponding to a keyboard pressed by a player, and the second is an automatic rhythm playing function, That is, this is a function for automatically performing rhythm performance in accordance with the melody performance by the performer by inputting and setting the types of various rhythm patterns for each measure in advance as performance data. This electronic musical instrument includes a keyboard 10 and an operation panel 20. The keyboard 10 is composed of a plurality of keys that specify musical tones, and the pressing and releasing of each key is detected by opening and closing a plurality of key switches provided in the key switch circuit 10a corresponding to each key. The key switch circuit 10a is connected to the bus line BUS. As shown in FIG. 2, the operation panel 20 is provided with various switches and an indicator. Of these, the main ones will be described below. □ Rhythm pattern selection switch RS _{1 to} RS ₄₀ … In addition to pops such as rock, pop, funk, 16 beat, shuffle, and Latin such as reggae, samba, tango, bossa nova, waltz, march, twist, swing,
Jazz a switch for selecting an arbitrary rhythm pattern from the 40 kinds of rhythm patterns, including, RS ₁ to RS
₂₀ also has a function as a song number selection switch for selecting an arbitrary number from song numbers 1 to 20. □ Song switch 21 …… Switch to switch from pattern mode for normal rhythm performance to song mode, or from song mode to pattern mode. □ Write switch 22 ... A switch for switching the mode from the normal read mode to the write mode. □ Bar increment switch 23 …… This switch specifies the bar number to be processed. When pressed once, it advances from the bar currently being processed to the next bar. □ Bar decrement switch 24 …… Switch that specifies the bar number to be processed. Press once to return from the bar currently being processed to the previous bar. □ Clear switch 25 …… A switch for deleting the rhythm type chords (performance data) that have been set for all measures of the song currently being processed. □ Tempo up switch 26 …… Sets the tempo when a musical tone is generated to 1
A switch to increase the number of steps. □ Tempo down switch 27 …… Sets the tempo when a musical sound is generated to 1
A switch to reduce by the amount of steps. □ Start switch 28 …… A switch for instructing the start of automatic rhythm performance. □ Stop / Continue switch 29 …… A switch for instructing to stop the performance during automatic rhythm performance, and for restarting the rhythm performance when the performance is stopped. □ Pattern variation switch PV _{1 to} PV ₃ …… 40 above
A switch for giving a variation (change) to each of the rhythm patterns of different types can select one of the three variations. □ Fill-in selection switch FA, FB ... A switch for giving fill-in variations to each of the 40 types of rhythm patterns described above, and one of two types of fill-in can be selected. This fill-in is, for example,
In the last measure of a phrase, it means adding an irregular rhythm to adjust the appearance of the rhythm. □ LCD (liquid crystal) display 31 …… Displays the measure number and rhythm pattern type name. □ Song LED (light-emitting diode) 32 …… Lights up in song mode, and flashes at the beginning of each beat during automatic rhythm performance. □ Pattern LED (light emitting diode) 33 …… Lights up in pattern mode, and flashes at the beginning of each measure during automatic rhythm performance. Next, returning to FIG. 1 again, the operator switch circuit 20a encodes the outputs of the various switches described above into bus lines.
Further, the display control circuit 20b controls the display of the LCD display 31 and the lighting of the song LED 32 and the pattern LED 33. Further, a tempo oscillator 40, a rhythm sound signal generation circuit 51, a keyboard musical sound signal generation circuit 52, an automatic performance musical sound signal generation circuit 53, a data storage circuit 60 and a microcomputer 70 are connected to the bus line BUS. Tempo oscillator 40
Outputs a tempo clock signal as a rhythm interrupt signal to the microcomputer 70 via the bus line BUS according to the set tempo. The rhythm sound signal generation circuit 51 has a plurality of percussion sound signal forming circuits that form percussion sound signals corresponding to percussion instruments such as cymbals and bass dras, and converts the rhythm pattern data supplied from the microcomputer 70 via the bus line BUS. In response, the percussion instrument sound signal is formed and output. The keyboard tone signal generation circuit 52 and the automatic performance tone signal generation circuit 53 each have a plurality of tone signal formation channels for forming tone signals corresponding to musical instruments such as piano and violin. Generates and outputs a tone signal on the basis of performance data supplied from the microcomputer 70 via the bus line BUS in response to a key press on the keyboard 10 or an operation of a tone color selection switch (not shown). The automatic performance tone signal generation circuit 53 is stored in the data storage circuit 60, is read out by the microcomputer 70, and forms and outputs a tone signal based on the automatic performance data supplied via the bus line BUS. The tone signals from the rhythm tone signal generating circuit 51, the keyboard tone signal generating circuit 52 and the automatic performance tone signal generating circuit 53 are mixed and supplied to the amplifier 54. The output of the amplifier 54 is connected to a speaker 55, and the musical tone signal supplied from the amplifier 54 by the speaker 55 is sounded as a musical tone. The data storage circuit 60 comprises a rhythm pattern data memory 61, a performance data memory 62 and a buffer register 63 which are connected to the bus line BUS. The rhythm pattern data memory 61 is constituted by a ROM, and stores rhythm pattern data for instructing the formation and output of each percussion instrument sound signal in the rhythm sound signal generation circuit 51 in time series for each rhythm type over one bar length. are doing. In this case, the rhythm pattern data memory 61 has a total of 240 (= 40 × 40) of 40 types of basic rhythm patterns such as rock 1, rock 2 and pop 1, plus 3 types of variations and 2 types of fill-ins.
6) Kinds of rhythm pattern data are stored. 24 stored in this rhythm pattern data memory 61
A rhythm type code RHYCD (= 1, 2, 3, ... 240) is assigned to each of the 0 types of rhythm patterns, as shown in FIG. The rhythm type code RHYCD is obtained by referring to a rhythm type code reference table RT stored in a program memory 71 of the microcomputer 70, which will be described later.
In the 71, read addresses required for sequentially reading the rhythm pattern data corresponding to each of the rhythm type codes RHYCD (= 1 to 240) from the rhythm pattern data memory 61 are stored. The performance data memory 62 is composed of RAM,
As shown in FIG. 4, each bar number data BAR (= 1 to 256
2560 storage locations SON specified by (0) as an address
G (BAR) and each of these storage locations SONG (BA
R) stores each rhythm type code RHYCD, so that the rhythm type code RHYCD for 20 songs, totaling 2560 measures, is stored in 128 measures per song. In addition, the performance data memory 62 also stores various automatic performance data input by operating the keyboard 10 or tone color selection switches (not shown), but the description thereof is omitted. The microcomputer 70 includes a program memory 71, a CPU 72, and a working memory 73, which are connected to the bus line BUS. The program memory 71 is composed of a ROM, and stores a main program (see FIG. 5), its subroutine program (see FIGS. 6 to 14), and a rhythm interrupt program (see FIG. 15).
The CPU 72 starts executing the main program when the power switch (not shown) is turned on, and repeatedly executes the same program until the power switch is turned off.
When the tempo clock signal from the tempo oscillator 40 arrives, the processing of the main program is interrupted and the rhythm interrupt program is interrupted. Working memory 73
Is composed of RAM, and temporarily stores a plurality of data and flags necessary for executing the program. The main ones of these data and flags are listed below. □ Pattern mode flag PTN …… When this flag PTN is set to “1”, it becomes the normal pattern mode in which the rhythm pattern selected by the rhythm pattern selection switches RS _{1 to} RS ₄₀ is played. The song mode is in which an automatic rhythm performance is performed based on the types of various rhythm patterns input as. □ Rhythm run flag RUN …… When this flag RUNN is “1”, the automatic rhythm performance is executed, and when it is “0”, the automatic rhythm performance is stopped. □ Writing mode flag WRT …… In the song mode,
When this flag WRT is set to "1", the rhythm type code RHYCD for each storage position SONG (BAR) of the performance data memory 62
It becomes the writing mode in which the writing is possible. □ Verify check mode flag VCPLY ... In the write mode, if this flag VCPLY is set to "1", immediately before that, each storage position SONG (BAR) of the performance data memory 62 is set.
A rhythm pattern for one measure is played based on the rhythm type code RHYCD written in. □ Stop reserve flag STPRSV …… When this flag STPRSV is set to “1” during automatic rhythm performance, the automatic rhythm performance will stop at the next bar line. □ Variation fill-in flag VARFIL …… Rhythm pattern selection switch RS _{1 to} RS ₄₀ in write mode
After is pressed, the pattern variation switch PV _{1 to} P
When V ₃ or the fill-in selection switches FA and FB are pressed,
This flag VARFIL becomes "1", and processing corresponding to this is performed. □ Tempo count data TCNT ... This data is incremented each time the tempo oscillator 40 outputs a tempo clock signal, and is reset to “0” when it reaches “48”.
That is, the tempo count data TCNT is “0” to
The tempo clock signal is repeatedly counted during “47”. This tempo count data TCNT indicates the progress timing of one bar, and this data TCNT is "48" (= 0).
Is the timing of the bar line. □ Measure number data BAR: Data indicating which rhythm type code RHYCD is currently being written to or read from each storage position SONG (BAR) of the performance data memory 62, as shown in FIG. As shown in
It is any value from "1" to "2560". □ Leading bar number data HEADBAR ... This is the data indicating the leading bar number of the song currently being processed. As shown in FIG. 4, it is of “1”, “129”, “257”, ..., “1432”. Takes one of the values. □ Rhythm reserve data RHYRSV …… Data in which the rhythm type code RHYCD obtained based on the operation of the rhythm pattern selection switches RS _{1 to} RS ₄₀ is temporarily set. □ Rhythm selection data RHYSEL …… The data for temporarily setting the rhythm type code RHYCD obtained based on the operation of the rhythm pattern selection switches RS _{1 to} RS _40. The type name of the rhythm pattern corresponding to this data RHYSEL Is displayed on the LCD display 31.

【motion】

 Next, the operation of the electronic musical instrument having the above configuration will be described with reference to FIGS.
This will be described with reference to the flowchart shown in the figure. First of all, the performer, who has the basic function of an electronic musical instrument,
I will explain the operation of the melody playing function, and then
The operation of the automatic rhythm playing function, which is the gist of the present embodiment
The work will be described in detail. (1) Melody performance function In the normal performance mode, this electronic musical instrument
Operates as an electronic organ. That is, first, the power switch (not shown) is turned on.
Then, the CPU 72 executes the main program shown in FIG.
Then, in step 101, various data in the working memory 73
Clear registers and flags, or set initial values
This resets the microcomputer 70 to its initial state.
Set. In this case, the pattern mode flag PTN is "1".
Is set. After this initialization, the CPU 72 proceeds to step 102
Each key switch and operator switch in the switch circuit 10a
By scanning each operator switch in path 20a
Key release information about the keyboard 10 and the operation panel 20.
Operate information of various switches via the bus line BUS
Read, and then in step 103, read and release key
Based on the information and the operation information, the key release event on the keyboard 10
Check whether there is an operation event on the control panel or the operation panel 20.
Put out. Now, none of the keys on the keyboard 10 are pressed and the operation panel
If none of the switches on the
2 determines that there is no event in step 103, and
Return to step 102 and the circulation process consisting of these steps 102 and 103.
Keep doing the reason. On the other hand, one of the keys on keyboard 10 has been pressed or operated.
When any switch on the control panel 20 is operated, the CPU7
2 determines that there is an event in step 103, and
In step 104, the type of event is determined. At this point, the performer presses each key on the keyboard 10,
Or, if a tone color selection switch (not shown) is operated,
The CPU 72 proceeds from step 104 to subroutine 105, and the sixth
The key / tone event routine shown in the figure is executed. In this key / tone event routine,
On the keys and tone selection switches etc. operated on 201
All event data related to
Once captured in the event buffer register
It Then, in step 202, all event days
Keyboard tone signal generation circuit 52 for the keyboard via the bus line BUS
Is output to The keyboard tone signal generation circuit 52
At the same time as capturing and storing event data, these
The generation of the tone signal is controlled based on the event data.
In this case, the event data is related to the key depression on the keyboard 10.
If so, the keyboard tone signal generation circuit 52
Create a tone signal of the corresponding pitch and cancel the tone signal.
It is supplied to the speaker 55 via the microphone 54. This allows
A tone with the pitch corresponding to the key pressed by the
Be done. Also, the event data relates to the key release of the keyboard 10.
That is, the keyboard tone signal generation circuit 52
In this way, it corresponds to the released key that was being formed until now
The formation of the tone signal is stopped, which causes the speaker 55 to
Musical sounds are no longer pronounced. On the other hand, the event supplied to the musical tone signal generation circuit 52 for the keyboard
Data is related to the tone color selection switch,
The generation circuit 52, based on the supplied event data,
The tone color of the generated tone signal is controlled according to the operated switch.
This changes the tone color of the tones that are produced.
It After such processing of step 202, the CPU 72
Go to 203, and
After clearing the event data, the key and tone event
After the processing of chin is completed, the process returns to step 102 in FIG. So
The CPU 72 then repeats the above steps 102 and 103.
Repeatedly execute the process, and keep the keyboard 10
Pressing and releasing the key or operating the tone selection switch
Control the generation of musical tones by the processing of steps 104 and 105 described above
I do. The above are the electronic options in the normal normal play mode.
It is an operation as Lugan. (2) Automatic rhythm performance function Now, the automatic rhythm performance which is the gist of this embodiment.
The operation related to the function will be described. First, the CPU 72 executes the above-mentioned main program (Fig. 5).
In the process of cyclically processing steps 102 and 103 of
When the various switches on the channel 20 are operated, step 103 or
To determine the type of event from step 104,
Depending on the type of event from step 104, various subs
Routine 106 to 114, and execute the processing shown in FIG. 7 to FIG.
To go. CPU7 in these various subroutines 106-114
The processing operation of No. 2 will be described below. Tempo up switch 26 or tempo down switch
When the chi 27 is pressed, the process proceeds to the subroutine 106 and the work
Tens for automatic rhythm performance stored in memory 73.
At the same time the tempo control data that controls the po is updated,
Updated data tempo oscillation via bus line BUS
The tempo clock supplied to the instrument 40 and output from the oscillator 40.
The main program after the frequency of the
Return. Rhythm pattern selection switch RS₁~ RS₄₀One of
When the button is pressed, the process proceeds to the subroutine 107 and the process shown in FIG.
Execute the process. First, in step 211, the pattern mode flag P
Determine whether TN is “1”, that is, whether it is pattern mode
And the pattern mode flag PTN is "1".
Determines that it is the pattern mode, and then proceeds to step 212.
If the flag PTN is "0", the song mode
And proceeds to step 216. Here, in the case of the pattern mode, step 212
It is determined whether or not the rhythm run flag RUN is "1".
Be separated. If this rhythm run flag RUN is "1"
If it is “0”, go to the next step 213.
Go to page 214. In step 213, stop resizing
The save flag STPRSV is set to “1” and the rhythm reserve data
The rhythm type code RHYCD is set as RHYRSV.
In this case, the rhythm type code RHYCD is the pressed rhythm.
Pattern selection switch RS₁~ RS₄₀Value i (= 1
It is calculated by substituting ~ 40) into the formula of (i-1) × 6.
Use the value as an address and refer to the rhythm type code shown in Fig. 3.
It is a value obtained by referring to the table RT. Ie the example
For example, rhythm pattern selection switch RS₁When is pressed
In this case, since i = 1, (i−1) × 6 = 0,
Rhythm from the reference table RT using "0" of
The classification code RHYCD = 1 is obtained, and this value is the rhythm reserve.
It is set as BDATA RHYRSV. Next, in step 214, the rhythm selection data RHY
The same rhythm type code RHYCD as above is set as SEL.
Be done. Then, in the next step 215, rhythm selection
Corresponds to the rhythm type code RHYCD set in the data RHYSEL.
The type name of the corresponding rhythm pattern is displayed on the LCD display 31.
Is displayed. For example, rhythm pattern selection switch RS₁
When is pressed and “ROCK1” is specified, the rhythm type
Mode RHYCD = 1, display control circuit via bus line BUS
20b, and this display control circuit 20b drives the LCD display 31.
Drive and display "ROCK1". On the other hand, if it is the song mode, the above step 21
From step 1 to step 216, in this step 216, write
Embedded mode flag WRT is "1", that is, write mode
It is determined whether the write mode flag WRT is “1”.
If it is, write mode is determined and the process proceeds to step 217.
When the flag WRT is "0", it means the read mode.
And proceeds to step 218. Then, in step 217, the performance data memory 6
Storage location SONG of 2 with bar number data BAR as address
(BAR), rhythm pattern selection switch RS₁~ RS₄₀Manipulation of
Rhythm type code RHYCD obtained based on the work is written
Rare, then written to this storage location SONG (BAR)
Rhythm type code RHYCD and rhythm selection data RHYSEL
Then, the process proceeds to step 215 described above. In step 218, the rhythm run flag RUN
Is determined to be "1", and if it is "1", the step
If it is “0”, the process proceeds to step 220. In step 219, the stop reserve flag STP
Set RSV to “1” and set rhythm reserve data RHYRSV to
Rhythm pattern selection switch RS₁~ RS₄₀Based on the operation of
After setting the rhythm type code RHYCD obtained by
Proceed to step 215 described above. On the other hand, in step 220, the first measure number data H
Rhythm pattern selection switch RS pressed as EADBAR
₁~ RS₂₀The value i (= 1 to 20) corresponding to (i-1) x 1
Set the value calculated by substituting into the formula 28 + 1, and then
The value of the head measure number data HEADBAR is used as the measure number data BAR.
After setting, the procedure proceeds to step 215 described above. Then, after executing the processing of step 215,
Return to the program. Pattern variation switch PV₁~ PV₃Or
When either of the run-in selection switches FA or FB is pressed, the
Proceed to Brutin 108 to execute the processing shown in FIG. First, in step 221, the pattern mode flag P
Determine whether TN is “1”, that is, whether it is pattern mode
And the pattern mode flag PTN is "1".
Determines that it is the pattern mode and proceeds to the next step 222.
If the flag PTN is "0", the song mode
Then, the process proceeds to step 226. Here, in the case of the pattern mode, step 222
It is determined whether or not the rhythm run flag RUN is "1".
Be separated. If this rhythm run flag RUN is "1"
If it is “0”, proceed to the next step 223.
Go to 224. In step 223, the variation
The fill-in flag VARFIL is set to "1". Then, in step 224, the original rhythm selection data
Pattern variation switch pressed on the RHYSEL
PV₁~ PV₃Or fill-in selection switch FA, FB
The new rhythm selection data RHYSEL
Is set as. In this case, the pattern variation
Switch PV₁~ PV₃N = 1 to 3 are assigned corresponding to
In addition, corresponding to the fill-in selection switch FA, FB
n = 4,5 is assigned. And, for example, Liz
Pattern selection switch RS₁Is pressed and the suble
Routine 107 with rhythm reserve data RHYRSV
If "1" is set in the
Switch PV₂If is pressed, n = 2 is input.
Because it was done with the new rhythm selection data RHYSEL
Then, the rhythm selection code RHYCD = 3 is set. Next
Then, in step 225, the rhythm selection data RHYSEL
Rhythm corresponding to the rhythm type code RHYCD set to
The type name of the pattern is displayed on the LCD display 31.
For example, rhythm pattern selection switch RS₁Followed by Patta
PV variation switch PV₂Is pressed and the “ROCK1
If "Turn Variation 2" is specified, the rhythm type
Another code RHYCD = 3, display control via bus line BUS
It is supplied to the circuit 20b, and this display control circuit 20b is supplied to the LCD display 3
Drive 1 and display "ROCK1 VARI2". On the other hand, if it is the song mode, the above step 22 is performed.
From 1 to step 226, in this step 226, write
Embedded mode flag WRT is "1", that is, write mode
It is determined whether the write mode flag WRT is “1”.
If it is determined that the writing mode is set, the process proceeds to step 227,
When the flag WRT is "0", it means the read mode.
And proceeds to step 228. Then, in step 227, the performance data memory 6
Storage location SONG of 2 with bar number data BAR as address
In the rhythm type code RHYCD written in (BAR),
Pressed pattern variation switch PV₁~ PV₃Also
Is the value n corresponding to the fill-in selection switches FA and FB
Value is set as a new rhythm type code RHYCD.
And then written to this storage location SONG (BAR)
The rhythm type code RHYCD is the rhythm selection data RHYSEL.
After being written, the process proceeds to step 225 described above. In step 228, the rhythm run flag RUN
Is determined to be "1", and if it is "1", then
Go to step 223. If "0", go to step 225.
Mu. Then, after executing the processing in step 225,
Return to the program. When the start switch 28 is pressed, the subroutine 109
Then, the processing shown in FIG. 9 is executed. First, in step 231, the pattern LED 33 is turned on.
Turn on. Then write in step 232
Whether or not the mode flag WRT is “1” is determined, and the same flag WRT
If is “1” (write mode), go to the next step 234.
However, if the flag WRT is "0" (read mode), the
Go to 236. Then, in the case of the writing mode, in step 234,
The verify check mode flag VCPLY is set to "1",
Proceed to next step 235. In this step 235,
The rhythm run flag RUN is set to “1” and the song LED 32 is turned off.
The light is on and the tempo count data TCNT is
It is initially set to a value "0" corresponding to minging. On the other hand, in the read mode, step 232 to step 2
Proceed to 36, and in step 236,
Leading bar set in step 220 in routine 107
The number data HEADBAR is set as the measure number data BAR.
After that, the process proceeds to step 235 described above. Then, after executing the processing of step 235,
Return to the program. When song switch 21 is pressed, go to subroutine 110
Then, the process shown in FIG. 10 is executed. First, in step 241, the pattern mode flag P
Invert TN. That is, the pattern mode flag PTN is
If it is "0", the flag PTN is "1". If it is "1",
Set to “0”. Then, in step 242, the song L
Reverse the on / off status of ED32 and pattern LED33.
It In this case, if the pattern mode flag PTN is "0".
When the song LED32 lights up, the pattern LED33 goes out,
Conversely, if the pattern mode flag PTN is "1", the pattern
LED 33 for song lights up, and LED 32 for song goes out. This station
After executing the process in step 242, return to the main program.
It When light switch 22 is pressed, go to subroutine 111
Then, the process shown in FIG. 11 is executed. At step 251, the write mode flag WRT is inverted.
Then go back to the main program. Bar increment switch 23 or bar decreme
Button 24 is pressed, the program proceeds to subroutine 112.
Then, the processing shown in FIG. 12 is executed. First, in step 261, the bar increment
Switch 23 or the decrement switch 24
Is determined, and the bar increment switch 23 is
If so, proceed to step 262 and complete the bar de climen.
If the switch 24 is pressed, the process proceeds to step 265. In step 262, "1" is added to the bar number data BAR.
After is added, the process proceeds to the next step 263. This step
In 263, bar number data BAR = i × 128 + 1
Or not, that is, the bar number data BAR is currently
A value corresponding to the last measure (bar 128) of the song being processed
It is determined whether or not it has become "1" greater than (i x 128).
Be done. And the bar number data BAR is the above value (i × 128)
In the following cases, proceed directly to step 268 and i × 128 +
If it becomes 1, the process proceeds to step 264. This step 2
In 64, "1" is subtracted from the bar number data BAR.
Operation of the bar increment switch 23 is disabled,
This ensures that the bar number data bar is always being processed.
The value is limited to the value (i × 128) or less corresponding to the last measure of
Then, proceed to step 268. Meanwhile, the bar decrement switch 24 is pressed and the step
When you proceed to page 265, "1" is subtracted from the bar number data BAR.
After that, go to the next step 266. In this step 266
The bar number data BAR = (i-1) × 128
Or not, that is, the bar number data BAR is currently being processed
Value corresponding to the first measure (first measure) of the song
1) × 128 + 1}, is it smaller than "1"?
To be determined. And the bar number data BAR is the above value
If {(i-1) x 128 + 1} or more, the
Proceed to step 268, and if (i-1) x 128, the step
Go to 267. In this step 267, measure number
"1" is added to the data BAR, and the bar decrement switch
The operation of switch 24 is disabled, so that the measure number
A value corresponding to the first bar of the song currently processing the data BAR
Limit to {(i-1) × 128} or more, then step 2
Continue to 68. Then, in step 268, bar number data BAR
Subtract the above value {(i-1) × 128} from
The current bar number data BAR is matched to the bar number of each song.
Is it correct, i.e. find the actual measure number and
The measure number (1 to 128) of is displayed on the LCD display 31.
It After the processing of step 268, return to the main program.
It When the stop / continue switch 29 is pressed,
Proceed to subroutine 113 to execute the processing shown in FIG.
It First, in step 271, the rhythm run flag RUN
Whether or not it is “0” is determined, and the rhythm run flag RUN is set.
If "0", in step 272 the rhythm run flag R
After UN is set to "1", return to the main program. on the other hand,
If the rhythm run flag RUN is “1”, go to step 273.
The stop reserve flag STPRSV was set to "1".
Then return to the main program. When the clear switch 25 is pressed, the subroutine 114 is executed.
Then, the process shown in FIG. 14 is executed. At step 281, each item in the performance data memory 62 is
Of the memory position SONG (BAR), (i-1) × 128 + 1 or more,
Measure number data BAR less than i × 128 + 1 as address
The memory content of each designated memory location SONG (BAR) is set to "0".
That is, for each measure in the song currently being processed
After erasing the set rhythm type code RHYCD,
Return to in-program. Next, the CPU 72 executes the above-mentioned main program (Fig. 5).
In the process of cyclically processing steps 102 and 103 of
When the oscillator 40 generates the tempo clock signal, the CPU 72
Main program and subroutines 106 to 114 described above
Interrupt the process of the rhythm interrupt program shown in Fig. 15.
Start the program. Below, this rhythm interrupt
The program will be described. First, in step 301, the rhythm run flag RUN
Whether it is “1” or not is determined, and the rhythm run flag RUN is set.
If it is “0”, return to the main program and
If the run flag RUN is "1", the next step 302
Go to. In this step 302, the rhythm selection data RHYSE
Rhythm type code RHYCD set as L
Pocount data TCNT (initially set to "0"
Rhythm pattern memory 61 based on the
System pattern data and read this data
Supply to rhythm sound signal generation circuit 51 via bus line BUS
I do. The rhythm sound signal generation circuit 51
Form a percussion instrument sound signal specified by turn data,
This signal is supplied to the speaker 55 via the amplifier 54,
According to the rhythm pattern data from the speaker 55.
A percussion sound is produced. Liz corresponding to 1/48 of one bar by this step 302
After the muzzle sound generation process, the process proceeds to step 303, and the song LED 32
Flashes the light, which causes the end of each beat of one measure
The song LED 32 flashes at the head timing. Then, in step 304, the tempo count day
After adding “1” to TCNT, in step 305,
Tempo count data TCNT is the final value of each measure, that is,
It is determined whether or not it becomes "47". If the tempo count data TCNT is less than "47",
If so, return to the main program and set the tempo oscillator 40
Each time the poclock signal is generated, the rhythm interface described above is generated.
Repeat steps 301 to 305 of the Rapt program
Run. Repeat the above steps 301-305 48 times
By doing so, the rhythm sound for one bar is played. On the other hand, when the tempo count data TCNT becomes "47",
Proceed from step 305 to the next step 306, where the measure number
Add "1" to the data bar and then go to step 307
And subtracted (i-1) × 128 from the bar number data BAR.
LCD display of the value, that is, the bar number of the song to be processed thereafter
It is displayed by the device 31. Then proceed to step 308,
Flash the pattern LED 33 by flash,
The pattern LED 33 flashes at the beginning of each measure.
Light up. Then, in step 309, the stop reserve
It is determined whether or not lag STPRSV is "1".
Stop reserve flag STPRSV
It is set to “0” and the rhythm reserve is stored in the rhythm selection data RHYSEL.
The data RHYRSV is set and the rhythm run flag RUN is “0”.
After that, the process proceeds to step 318. On the other hand, if the flag STPRSV is “0”, step 311
In the verification check mode flag VCPLY
It is determined whether it is "1". And the verify check mode flag VCPLY
If the value is “1”, the rhythm run flag is set in step 312.
RUN and verify check mode flag VCPLY
After being set to "0", the process proceeds to step 318. If the flag VCPLY is “0”, go to step 313.
The variation fill-in flag VARFIL is “1”.
It is determined whether or not. And the variation fill-in flag VARFIL
If it is "0", proceed to the next Step 316, and set the same flag VARFI.
If L is "1", in step 314, the flag VARFIL is set.
Is set to “0”, and then in step 315, the rhythm
The selection data RHYSEL is set in subroutine 108.
After the updated value n is subtracted, the process proceeds to step 316.
move on. In this step 316, the pattern mode flag P
If TN is "1" and if the flag PTN is "1"
Goes to the next step 318, and if the flag PTN is "0"
At step 317, the rhythm selection data RHYSEL
And specify the new bar number data BAR as an address.
The rhythm type code RHYCD in the stored location SONG (BAR) is
It is set, and then proceeds to step 318. Then, in step 318, the tempo count data T
Return to the main program after "0" is set in CNT.
It Next, operate the various switches described above to perform automatic rhythm performance.
A series of operations for playing will be described. First, the power switch is turned on and the CPU 72 is initialized.
In this state, the pattern mode flag PTN is set to "1".
It is fixed. Here, when the song switch 21 is pressed,
Execute the processing of subroutine 110 (Fig. 10) and
The mode flag PTN is set to "0", and the song mode is set. Next, rhythm selection switch RS₁~ RS₂₀Is pressed
When the song number is specified, the processing of subroutine 107 is performed.
(Fig. 7) is executed and steps 211 → 216 → 218 → 220 are processed.
By reason, the measure corresponding to the first measure number of the specified song
Number data BAR is set. Next, when the light switch 22 is pressed, the subroutine
By executing the processing of 111 (Fig. 11), the write mode flag WRT
The write mode is set to "1". Next, rhythm selection switch RS₁~ RS₄₀Is pressed
And the rhythm pattern type is selected.
Execute the processing of Chin 107 (Fig. 7), and step 211 → 216
→ Corresponds to the specified rhythm pattern by processing 217
The selected rhythm type code RHYCD is stored in the performance data memory 62.
Storage location SONG with the bar number data BAR as the address
Written in (BAR). In this case, the rhythm selection switch
Chi RS₁~ RS₄₀Followed by the pattern variation selection
Itch PV₁~ PV₃Or fill-in selection switch FA, FB
When is pressed, the processing of subroutine 108 (Fig. 8) is executed.
And in step 227, in storage location SONG (BAR)
Data of the switch PV₁~ PV₃, FA, FB corresponding to FB
It is rewritten to the type code RHYCD. Next, when the bar increment switch 23 is pressed,
Execute the processing of subroutine 112 (Fig. 12), and measure number
The data BAR is incremented by "1" and the bar
When the decrement switch 24 is pressed, the measure number data
The BAR is decremented by "1", so that
The measure number to be processed is specified. As described above, the types of rhythm patterns for one song
Input is set sequentially for each measure, but during this input work
Then, for example, enter the type of rhythm pattern at bar 10.
The rhythm pattern you entered at bar 10
To confirm, press the start switch 28. When this start switch 28 is pressed, the subroutine
The process of 109 (FIG. 9) is executed, and steps 231 → 232 → 234
→ By the processing of 235, the verification check mode flag
G VCPLY is “1”, rhythm run flag RUN is “1”, tempo
The count data TCNT is set to "0". After that, as shown in Figure 15.
Rhythm interrupt program steps 301 → 302 →
By repeating the process of 303 → 304 → 305 48 times,
A rhythm depending on the type of rhythm pattern input at the measure
A mud sound is played. In this case, when you finish playing one bar
In points, steps 305 → 306 → 307 → 308 → 309 shown in FIG.
→ Proceed to 311 and proceed from step 311 to step 312
Rhythm run flag RUN and verify check mode
Since both flag flags VCPLY are set to “0”,
Rhythm sound corresponding to rhythm pattern is automatically generated only once
To be played. This allows you to select the type of rhythm pattern you just entered.
, Just press the start switch 28 to check immediately
be able to. In the above-mentioned embodiment, the performance data is
Input data according to the type of rhythm pattern in advance.
If you want to perform automatic rhythm performance based on this data,
As explained in the example, the operating information of the keyboard 10
Enter the data for automatic performance based on the
Of course, it is also applicable to electronic musical instruments that perform automatic melody based on
can do. [Advantage of the Invention] As described above, according to the present invention, the write mode
Sometimes the confirmation means responds to the operation of the confirmation instruction operator and
The specified section in which the performance information was written immediately before by the inserting means.
Automatically for the section based on the performance information (pattern) related to
Performs a performance, and after the automatic performance of the section ends, enters the writing state again
It works to restore. Therefore, write in write mode.
Troublesome operations associated with checking the patterns
The effect that it can be solved and work efficiency can be improved
Can be obtained.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of an electronic musical instrument provided with an automatic musical instrument according to an embodiment of the present invention, FIG. 2 is a plan view showing the external configuration of an operation panel of the electronic musical instrument, and FIG. FIG. 4 is a diagram for explaining a rhythm type code reference table stored in a program memory of the musical instrument, FIG. 4 is a diagram for explaining a storage format of a performance data memory of the electronic musical instrument, and FIGS. 3 is a flow chart for explaining the operation of the electronic musical instrument. RS _{1 to} RS ₄₀ ... Rhythm pattern selection switch (input means), 21 ... Song switch, 22 ... Light switch, 23 ...
Bar increment switch, 24 ... Bar decrement switch (above 23 and 24 are section designating means), 28 ... Start switch (operation means for confirmation), 51 ... Rhythm sound signal generating circuit, 54 ... Amplifier, 55 ... Speaker, (above, 51, 54 and 55 are musical sound generating means), 61 ... Rhythm pattern data memory, 62 ...
Performance data memory (memory), 70 ... Microcomputer (writing means, reading means).

Claims (1)

[Claims] 1. A mode designating means for designating either a writing mode or a reproducing mode, a writable storage means for storing performance information of a musical composition, an input means for inputting performance information, and the mode designating. When the writing mode is designated by the means, the writing means for writing the performance information input by the input means to the storage means, the confirmation instruction operator, and the writing mode is designated by the mode designating means. In response to the operation of the confirmation instruction operator, an automatic performance of the section is performed based on the performance information related to the predetermined section in which the performance information is written immediately before by the writing unit. When the playback mode is designated by the mode designating means, the confirming means for returning to the written state again after the automatic performance of the section is finished, and the performance information stored in the storing means is used to advance the music. Sequentially reads out automatic performance device comprising comprising a playing means for performing an automatic performance, the based on the read performance information in accordance with.