JPS62151898A - Automatic performer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The invention will be explained in the following order.

Industrial field of application Overview of the invention Conventional technology Problems to be solved by the invention Background and main points of the invention Description of embodiments Explanation of the structure of the electronic musical instrument in Figure 1, Explanation of the operation of the electronic musical instrument in Figure 1, 1, Main Processing (Fig. 4) 2. Program processing (Fig. 5) 3. Data input/editing processing (Fig. 6) 4. Chord/rest data input processing (Fig. 7) 5. Symbol data input processing (Fig. 8) 6. Registration data input processing (Fig. 9) 1. Cursor movement processing (Fig. 10) 8. Auto cursor processing (Fig. 11) 9. Auto cursor interrupt processing (Fig. 12) Effects of the invention [Industrial Field of Application] The present invention relates to an automatic performance device that has a memory that can be rewritten and performs automatic performance of a melody or accompaniment based on the performance data stored in the memory, and particularly relates to an automatic performance device that has a memory that can be rewritten and automatically performs a melody or accompaniment based on the performance data stored in the memory. The present invention relates to an automatic performance device that simplifies operations when editing.

[Summary of the invention] This invention compiles data for automatic performance! ! (Edit) When editing an automatic performance device that is capable of editing, the data that has already been written to the specified correction location (old data) and the data that is newly written to this location (new data)
Depending on the combination with This makes it possible to omit the insert mode instruction switch.

[Prior Art] A conventional automatic performance device has a readable and writable memory, and automatically performs melodies and accompaniment (chords) based on performance data written in this memory, and allows a performer etc. to use this memory. There are known devices in which performance data can be freely written and edited (for example, Patent Application No. 1983).

FIG. 13 shows an example of a performance data format in the memory of such a device. This memory contains a registration data area 40 in which registration data indicating the setting status of panel controls such as rhythm type, instrument type, and volume balance of each instrument is stored, as well as chord name or rest data and beat count data. sequence data, and Dalcegno (D.

A musical score data area 41 is provided in which music progress data consisting of repetition symbol data such as S, ), segno (8), da cabo (D, C,), and cog (4+) is stored. Nine types of registration data, including song start registration data C and registration data 1 to 8, can be written in the registration data area 40. Furthermore, registration number data can be written in the musical score data area 41 as desired. During automatic performance, the data in the score data area 41 is read out sequentially at a predetermined timing,
When the accompaniment corresponding to the music progression data is automatically played and the registration number n is read out, at that point the setting state of the on-panel controls is changed to the registration data area 4.
The setting is changed to the state stored as registration data n at 0.

By the way, in such a device, it is possible to insert registration number data while pointing at a desired location, for example, a music progression data location with a cursor, or insert registration number data into another registration number while pointing at a registration number data location with a cursor. It is possible to exchange (replace) data. In conventional devices, when inserting registration number data, ■turn on the edit switch, ■turn on the insert switch, ■specify the change location with the cursor, and then press the ■registration number designation switch to select the desired registration number. I was supposed to enter data.

Also, when exchanging registration number data, after turning on the edit switch but not turning on the insert switch, ■ Specify the change part with the cursor, and then input the desired registration number data with the registration number designation switch. However, if the error occurred when the insert switch was turned on, it was necessary to switch to exchange mode by turning on the edit (or exchange) switch again before specifying the change location or inputting the changed data. .

Also, when changing (adding or inserting) chord data, you can use the insert switch to switch to insert mode, specify the changes with the cursor and insert the chord data, or use the edit switch to switch to exchange mode. , it was necessary to specify the location with the cursor and exchange the code data.

[Problems to be Solved by the Invention] In other words, in the conventional device, when editing, it is difficult to specify a changed part in musical score data with a cursor, and to determine the type of change, that is, whether the data at the changed part is to be deleted. Delete (delete) depending on whether you want to replace with new data or insert new data in the changed place.
It was a hassle to have to specify the insert or exchange operation mode each time.

In view of the above-mentioned problems with the conventional type, the present invention provides an apparatus that has a rewritable memory and performs automatic performance based on performance data stored in the memory, in which an operation for editing data in the memory is provided. The purpose is to simplify.

A further object is to reduce the number of switches for editing.

[Backstory and main points of the invention] As a result of various studies to achieve the above object, the inventors have found that: ■Changes in register number data or repeat symbol data (hereinafter referred to as register data, etc.) are limited to certain performance data such as chords. It is meaningful if it is entered. That is, since the registration data etc. should exist between song progress data such as chord sequence data or at the beginning of the song, other data such as chord data should be left as is and placed immediately before these data. In other words, insert mode is suitable, exchange mode is not suitable.

■On the other hand, exchange mode is suitable for changing chord data, and chord data insert mode is rarely used.

We obtained this knowledge and arrived at this invention.

That is, in the present invention, when changing the performance data in the memory, especially the musical score data, in the automatic performance device,
Compare the data written in the changed area (old data) with the new data entered for the change, and decide whether to make the change in exchange mode or insert mode depending on the combination of the old and new data. is automatically determined, making it possible to omit mode specifications such as exchange and insert.

According to one embodiment of the present invention, when the new data is registration number data, if the old data is registration number data, the exchange mode is automatically set, and if the old data is data different from the registration number. If so, it will automatically switch to insert mode.

[Explanation of Examples] Hereinafter, the present invention will be explained in detail using the drawings.

(Explanation of the overall configuration of the electronic musical instrument shown in FIG. 1) FIG. 1 shows the overall configuration of an electronic musical instrument to which an automatic performance device according to an embodiment of the present invention is applied. This device has an upper keyboard (LIKE), a lower keyboard (LK), and a pedal keyboard (PK).
In addition to having keyboard performance functions as a normal electronic musical instrument, it also has a function to automatically play accompaniment (chords) based on performance data stored in performance data memory, etc., which will be described later, and an autorhythm function to automatically play rhythm sounds. Equipped with functions, etc.

Furthermore, it has a function of automatically playing a melody based on melody performance data stored in a performance data memory or the like.

In FIG. 1, the key switch circuit 10 includes the key WUK.
, LK, and PK, and generates key data representing the pressed keys of these 11513 keys.

The control operator circuit 12 scans the operators such as switches and volume controls arranged on the panel section shown in FIG. 2, and takes in the data set to these operators.

The panel section (Figure 2) includes panel data setting operators and code sequence programs (1J, lower C8P).
) are arranged with controls for inputting data and commands, etc. The controls for setting panel data are on the left side of the panel.
Rhythm type selection switch 51 for autorhythm, rhythm start/stop switch 52, rhythm volume setting switch 53, and the above 8 keys! l! Instrument/voice selection switch 54 for tones or unsamples for each UK, LK, and PK
-56, volume setting switches 57-59, accompaniment/rhythm tempo setting switch 60. Further, setting switches 61 to 66 for auto bass chord, albeggio chord, melody on chord, reproduced sound vibrato, tremolo, sustain, etc. are arranged.

As C8P data/command input operators, registration switches 70-78 are arranged on the left side of the panel, and automatic performance music selection switches 79.degree. 80 and menu switches 81-92 are arranged on the left side of the panel.

The menu changeover switch 93 is connected to each menu switch 81.
-92 uses, and each menu switch is assigned a use v1 to be displayed on the menu display window. The display within this menu display window is switched in conjunction with the menu changeover switch 93. FIG. 3 shows an example of a menu that can be changed by the menu changeover switch 93. For example, the menu switch 81 is set to the program mode switch in FIG. 2, but by switching the menu changeover switch 93, automatic chord play
A play switch for setting and canceling modes, a registration menu switch for setting manufacturer-set registration data on the panel, a voice menu switch for assigning a desired tone to each tone selection switch 54 to 56, or a suspension switch. It can function as a teen switch, etc.

Roughly speaking, each switch has a built-in LED to indicate that the mode corresponding to turning on the switch is set, but in the following, these LEDs are also represented by the same number as the corresponding switch. shall be taken as a thing.

The electronic musical instrument shown in Figure 1 is controlled by a central processing unit (C
PtJ) 14,
The CPU 14 is connected to the key switch circuit 10 and the control operator circuit 12 via a bidirectional path line 16.
In addition, there is a program memory 18 in which a control program for the CPU 14 is stored, and a working memory 20 provided with various working areas for temporarily storing various data generated when the CPU 14 executes the control program. , a registration memory 22 for registering a plurality of settings, for example nine types, of panel data setting operators when performing automatic performance, a performance data memory 24 in which automatic performance data for chords is stored, and automatic performance for rhythm sounds. Rhythm pattern memory 2 where data is stored
6. A tempo oscillator 28 consisting of a variable frequency oscillator or a frequency divider with a variable frequency division ratio, a musical tone forming circuit 30 for forming melody sounds, rhythm sounds, chord sounds, etc. are connected. The musical tone forming circuit 30 includes an amplifier 32 and a speaker 3.
A sound system consisting of 4 etc. is connected, and converts the musical tones formed by the musical tone forming circuit 30 into sound.

The working area in the working memory 20 is
Edit flag EF to indicate that the current mode is edit mode, pointer PNT to specify the read/write address of performance data memory 24, rhythm counter RNT to address rhythm pattern memory 26, automatic Rhythm run flag RR indicating whether or not the performance is in progress
Pointers such as F, beat length counter HLT, flags, counters, etc. are provided.

(Explanation of the operation of the electronic musical instrument shown in FIG. 1) Next, the operation of the electronic musical instrument shown in FIG. 1 will be explained with reference to the flowcharts shown in FIGS. 4 to 12.

1. Main Process Referring to FIG. 4, after the electronic musical instrument starts operating (step 100), the outputs of the key switch circuit 10 and the control operator circuit 12 are inspected in a loop of step 102 and 106, and the operation is performed. Detects the key switch and operator that have been set, and their switch or operator information.

Then, C8P play switch (menu switch 81
) is turned on, the chord automatic performance process of step 110 is started, and the edit/clear switch 92 and C
When a switch other than the 8P play switch 81 is operated, such as the voice menu switch or the sustain switch (both menu switches 81), the process corresponding to the operation (step 120) is performed as in the conventional case.
).

In this electronic musical instrument, when the edit/clear switch 92 is turned on alone in the loop processing of steps 102 to 106 described above, the edit mode is turned on/off each time the edit/clear switch 92 is turned on.
Performs a toggle operation to switch off. Also, Edit/
When the clear switch 92 and the treble clef switch 82 are pressed at the same time, the song selection switch 79.
At step 80, all data in the selected area is rewritten (cleared) with reset data, and performance data can be written into this area. That is, in this case, a new recording (NEW REC) mode is set.

That is, when the edit/clear switch 92 is turned on, depending on whether the treble clef switch 82 is turned on at the same time, if the treble clef switch 82 is not turned on, that is, the edit/clear switch 92 is turned on alone. When the edit flag EF is set in the next step 108, the treble clef switch 8 is turned on.
If both 2 and the edit/clear switch 92 are turned on at the same time, the process directly proceeds to the next step 200 of program (RECP) processing. This edit flag EF4. This is used to select either the process for the edit mode (step 206) or the process for the new recording mode (step 211) in step 205 described below.

2. Program Processing Referring to FIG. 5, in step 201, the speaker 34
Stops the sound from and displays the program mode LE.
After turning on D81 and setting the image display LEDs 79 and 80 to a blinking state, in steps 202 and 203, the process waits for a predetermined period of time, for example, up to 30 seconds, until any of the song selection switches is pressed. If neither the song selection switch 79 nor 80 is pressed within this predetermined time, the pressing of the edit/clear switch 81 is determined to be an erroneous operation, and the process skips from step 203 to step 230, where the program mode display LED 81 is
After turning off the screen display LEDs 79 and 80, this program processing is terminated and step 102 (FIG. 4)
Return to

In step 202, one of the song selection switches 19
(or 80) is detected, the process advances to step 204, and the image display of the selected song L E
D Turn on 79 (or 80) and display other images LE
D80 (or 79) turns off. Next step 205
Now, the edit flag EF is checked.

If the flag EF is "1", the current mode is the edit mode, and therefore the register data C, 1 to 8 are stored in the performance data area of the song selected in step 206.
is loaded into the registration memory 22, and the song start registration data C is set on the panel.Furthermore, in step 207, the pointer PNT is set to the position of the first data (PCI in FIG. 13) of the musical score data 41, and this first data is After reading and displaying (registration data, etc.) or generating sound (code data), step 22
Transition to 0. On the other hand, in step 205, the flag E
When it is determined that F is 0'', the current mode is the new recording mode, so the process advances to step 211.

Then, in step 211, the reset data is loaded into the performance data area of the selected song, and the registers of the selected song are cleared, and in step 212, the registration data on the panel is set as the song start registration data C in the performance data area. After loading, the process moves to step 220.

Step 220 checks whether the program mode has been turned off. The program mode turns off as follows: ■ If the edit/clear switch 92 is pressed again while the program mode is being set; ■ If the song selection switch 80 (or 79) of a song that is not currently being programmed is pressed; ■ This is the case when the menu changeover switch 93 is operated, and the case when the playback switch (2) is pressed. If the program mode is not turned off at this point, the data input wAgJ step 300 (FIG. 6)
Perform A process.

3.--9 Input/li collection processing In this data input/edit processing, step 301
In steps 305 to 305, each data input/edit switch is inspected, and steps 400 to 400 correspond to the pressed switch.
900 processing is performed.

4. JJ/note - one night processing When any one of the beat length switches 89 to 91 is pressed, the process moves from step 301 to step 400, and chord/rest data input processing is performed. That is, referring to FIG. 7, in step 401 the beat indicator LED corresponding to the depressed beat indicator switch is turned on, and in step 402 it is checked whether memory space remains in the musical score data area 41. If there is memory space remaining, the process advances to step 403 and the position indicated by the pointer PNT (hereinafter referred to as
After clearing the data at the pointer position, it is checked in step 404 whether any key on the lower W1 board is being pressed. If the lower keyboard is being pressed, step 405
Step 406 loads the beat length data assigned to the pressed beat length switch and the chord data detected from the pressed state of the lower keyboard into the pointer position. On the other hand, if there is no pressed key on the lower keyboard, step 406 The process advances to and loads the beat data and rest data to the pointer position. Next, in step 407, the beat length LED is turned off, and the pointer PN
After stepping T and displaying or sounding the next data, this chord/rest data input process is completed. In other words, the process returns to step 220 (FIG. 5).

Also, during the above chord/rest data input process, step 40
If the result of checking in step 2 is that there is no memory space,
Since no more data can be read in, a warning sound is generated in step 410, and the beat length LED is turned on in step 411.
After turning off the light, this chord/rest data input process is completed.

5.1-Ichiyo Processing In the data input/editing process in Figure 6, step 30
If it is detected in step 2 that one of the symbol switches 83 to 85 has been pressed, the process moves from step 302 to symbol data input processing in step 500. In other words, the 8th
Referring to the diagram, the symbol LE corresponding to the pressed switch
D is lit (step soi > m, it is determined whether the data at the pointer position is symbol data (step 502). If it is symbol data, step 50
After clearing the data at the pointer position through step 3 and step 504, the input symbol data is loaded into the pointer position (step 505). That is, the data at the pointer position is exchanged with the newly input symbol data.

On the other hand, if the determination in step 502 is "no", that is, the data at the pointer position is not symbolic data, step 510
After that, in step 511, the data after the pointer position is set to 1.
The data is shifted byte by byte, and in step 505, the new symbol data is loaded to the pointer position. That is, new symbol data is inserted at the pointer position.

In the following step 506, it is determined whether the symbol data input and loaded in the above step is a road symbol. Then, if it is not a road symbol, step 5
At 07, turn off the symbol LED, advance the pointer PNT,
If it is a road symbol that displays or sounds the next data, the symbol data input process is immediately terminated and the process returns to step 220 (FIG. 5).

Note that in steps 503 and 510, it is checked whether there is memory space remaining, but as explained in the above chord/rest data input process, if there is no memory space remaining, writing of data is performed. This is because it is inappropriate to continue, so an alarm is generated (step 521), and the process is terminated at the symbol [ED is turned off (step 522)].

6. Registration data input process If it is detected in step 303 of the data input/edit process (FIG. 6) that any of the registration switches 70 to 78 has been pressed, the process starts from step 303 to step 600 for register data input. Move to processing. That is, referring to FIG. 9, after lighting the registration LED corresponding to the pressed switch (step 601), the pointer position is located at the beginning data (for example, PDl in FIG. 13) of the musical score data of the selected song. It is determined whether or not (step 602). If the pointer position is not the first data position, the contents of the registration data C, 1 to 8 stored in the registration memory 22 that correspond to the pressed registration switch are reproduced on the panel (step 603). .

Subsequently, in step 611, it is determined whether the data at the pointer position is registration data. If it is registration data, confirm that there is memory space (
After step 612), the data at the pointer position is cleared (step 613), and the input registration data is loaded into the pointer position (step 614). on the other hand,
If the judgment in step 611 is "no", that is, the data at the pointer position is data other than registration data, check that there is memory space (step 620).
, the data after the pointer position is shifted backward one byte at a time (step 621) 11, and the process proceeds to step 614, where the input registration data is loaded to the pointer position.

That is, in the processing of steps 611 to 621,
When the input data is register data, if the data at the pointer position is the same register data, the data at the pointer position is exchanged with the input register data; on the other hand, if the data at the pointer position is data other than the register data, the data at the pointer position is exchanged with the input register data. Newly input registration data is inserted immediately before the data at the pointer position.

Following the processing in step 614, the registration LED is turned off in step 615, and the pointer is advanced to display or sound the next musical score data in the performance data area, and then this registration data input processing is ended and step 220 (
Return to Figure 5).

Note that when it is determined that there is no memory space in step 612 or 620, it is determined that no more data can be changed or added, a warning sound is generated (step 630), and the registration LED is turned off (step 631). ) tl, this registration data input process is completed and the process returns to step 220 (FIG. 5). In addition, in the determination in step 602 above, if the pointer position is the first data position of the musical score data, the process advances to step 604, and the registration data on the panel is changed to the music start registration data C.
After the registration data is loaded into the registration memory 22 and the registration LEDs 70 to 78 are turned off in step 631, this registration data input process is ended and the process returns to step 220 (FIG. 5).

7. Cursor movement process If it is detected that the cursor switch 86 or 87 has been pressed in step 304 of the data input/editing process (FIG. 6), the process proceeds from step 304 to step 7.
The process moves to 00 cursor movement processing.

That is, referring to FIG. 10, the cursor LED is turned on in step 701, and the cursor movement direction is determined in step 702. If the left cursor switch 86 for moving the cursor to a smaller number has been pressed, the process moves to step 703. Step 703
Then, it is checked whether the current pointer position is the first data of the musical score data. If it is the first data, there is no point in moving the cursor any further to the left, so the process proceeds directly to step 707, turns off the cursor LED, and ends this cursor movement process. That is, the cursor movement command at this time is ignored. On the other hand, if it is determined in step 703 that the data is not the first data, the pointer is decremented in step 104, and it is checked again in step 105 whether or not the pointer position has become the first data. here,
If it is the first data, the registration data C at the beginning of the song is set on the panel in step 706, and on the other hand, if it is not the first data, the process directly advances to step 707. Then, in step 707, the cursor LED is turned off, this cursor movement process is terminated, and step 22
Return to 0 (Figure 5).

On the other hand, if it is determined in step 702 that the right cursor switch 87 has been pressed, the process advances to step 710. In step 710, the data at the current pointer position is examined. If this data is road symbol data or reset data, no musical score data has been written after this pointer position, and there is no point in moving the cursor further to the right, so proceed to step 707 and display the cursor LED. If the function is turned off, this cursor movement process ends. That is, the cursor movement command at this time is ignored. On the other hand, if the data inspected in step 110 is neither road symbol data nor reset data, the pointer is incremented in step 711, and then the cursor LED is turned off in step 707 to end this cursor movement processing, and step 220 (step 220) Return to Figure 5).

8. Auto cursor processing If it is detected in step 305 of the data input/editing process (FIG. 6) that the rhythm start switch has been pressed, the process moves from step 305 to auto cursor processing in step 800.

That is, referring to FIG. 11, in step 801 data at the pointer position is read out and displayed, and in step 802 it is checked whether the rhythm start switch 52 has been turned off. If the rhythm start switch 52 is not turned off, the rhythm run flag R is set in the next step 803.
Check RF.

This rhythm run flag RRF is set when the rhythm start switch 52 is turned on and when chord or rest data is first read out (step 805), and when the rhythm start switch 52 is turned off (step 812). , auto cursor interrupt processing (first
When there is no more musical score data to be read in FIG. 2) (step 911), it is reset.

Therefore, the rhythm run flag RRF is not set immediately after the rhythm start switch 52 is turned on. In this case, from step 804 onwards, the processes of steps 805 to 808 are executed according to the data read out at step 801.

That is, if the data read in step 801 is sum B or rest data, the process advances to step 805, starts the rhythm counter self-N king, and sets the rhythm run flag R.
After setting the RF, generating a chord tone according to the read data (rests are treated as silent chords), and setting the beat length data to the beat length counter HLT, step 8
Return to 01.

If the data read out in step 801 is registration number data, the corresponding registration data is set on the panel (step 806), or if it is repetition symbol data, the pointer P is moved to step 807.
Step NT and return to step 801.

On the other hand, if the data read out in step 801 is road symbols or reset data, no musical score data has been written after the current pointer position, so this auto cursor processing is immediately terminated, and step 22
Return to 0 (Figure 5).

Once the rhythm run flag RRF is set in step 805, the process waits in a loop of steps 802 and 803 until the rhythm start switch 52 is pressed again and turned off (auto cursor mode).

In this auto cursor mode, it is detected that the rhythm start switch 52 is turned off (step 802).
This ends with this. That is, the process advances from step 802 to step 811, where the data at the pointer position is read out and displayed or sounded.Furthermore, in step 812, the rhythm counter RNT is stopped, the rhythm run flag RRF is reset, and the chord sound is stopped. The cursor processing is completed and the process returns to step 220 (FIG. 5).

9. Auto cursor interrupt processing The above auto cursor mode (steps 802 and 80
During the loop processing (step 3), the following interrupt processing (step 900) is performed using the tempo clock generated from the tempo generator 18 at a cycle corresponding to one beat of automatic performance as an interrupt signal. Referring to FIG. 12, in step 901, a beat length counter HLT is decremented, and in step 902, it is checked whether the counted value of this beat length counter has reached O.

If the count value of the beat length counter is not O,
Just cancel the interrupt and return to the original routine. That is, in this case, since the chord sound generation time has not passed the time indicated by the beat length data, the current sound generation is continued as is.

On the other hand, when the count value of the beat length counter HLT becomes 0, this means that the chord note specified by the previous chord data has been sounded for the number of beats specified by the beat length data, so in step 903 the pointer is The PNT is advanced, data at that position is read and displayed, and the following processing is performed depending on the type of data.

That is, if the read data is chord or rest data, in step 910 a chord sound corresponding to the data is sounded (rests are treated as silent chords), and a chord sound corresponding to the data is sounded (rests are treated as silent chords), and a chord sound corresponding to the data is sounded (rests are treated as silent chords). After setting the beat length data read in the beat length counter HLT, the interrupt is canceled and the process returns to the original routine. As a result, the encroaching chord sound is changed to the chord sound based on this new chord data and is produced.

Also, if the read data is road symbol or reset data, the performance data has ended.
After stopping the rhythm counter, resetting the rhythm run flag RRF, and stopping the chord sound in step 920, this auto cursor processing is ended and step 220 (fifth
Return to figure).

Further, if the read data is registration number data, the corresponding registration data is set on the panel in step 930, and if it is repeated symbol data, the process directly returns to step 903.

That is, in this interrupt processing, all registration data and repeat symbols (usually up to two in total) are read out until the chord or rest data, road symbol, or reset data is read, and the chord or rest data or road symbol is read out. Only after the symbol or reset data is read out will the interrupt be released and the original routine returned.

[Application Examples of the Invention] Note that the present invention is not limited to the above-described embodiments, and can be implemented with appropriate modifications. For example, in the above-described embodiment, the case where the present invention is applied to the automatic performance of chords has been described, but it goes without saying that the present invention can also be applied to the case where the automatic performance of a melody is performed.

[Effect of the Invention] As described above, according to the present invention, the previous data at the changed location is compared with the new data input for the change, and depending on the combination, whether the new data is exchanged with the previous data or Since the change operation mode is automatically determined to determine whether to insert immediately before or after the changed part, switching to insert mode, especially when editing performance data, and changing after setting insert or delete mode There is no need to switch modes, and the editing procedure can be simplified. Furthermore, if the registration is basically changed in insert mode, it is possible to eliminate the insert mode designation switch from the panel.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an electronic musical instrument to which an automatic performance device according to an embodiment of the present invention is applied, FIG. 2 is an external view of the panel portion of the device shown in FIG. 1, and FIG. An explanatory diagram of the menu changeover switch of the device; FIGS. 4 to 12 are flowcharts for explaining the operation of the device of FIG. 1; FIG. 13 is a format of performance data stored in the memory of the device of FIG. 1. It is a diagram. DESCRIPTION OF SYMBOLS 10... Key switch circuit, 12... Control operator circuit, 14... CPU, 18... Program memory, 2
0... Working memory, 22... Registration memory, 24... Performance data memory, 30...
Musical tone forming circuit, 32...Amplifier, 34...Speaker, 70-78...Registration switch, 82
... Treble clef switch, 83-85 repetition symbol switch, 86.87... Cursor switch, 88... Street symbol switch, 89-91... Beat length switch, 92.
...Edit/Clear switch.

Claims (1)

[Claims] 1. An input operator for inputting movement commands and performance data; a rewritable memory in which the performance data is stored; and data stored in this memory in response to operations on the input operator. Specify the changed part and replace the new performance data input from the input controller with the old performance data written in this changed part, or A writing control means to be inserted immediately before or after the performance data, a comparison/judgment means for instructing a change mode of the writing control means according to the combination of the new performance data and the old performance data, and a performance data read from the memory. 1. An automatic performance device comprising: a musical tone generating means for forming and emitting a musical tone based on the musical tone. 2. The performance data includes chord or rest data, beat length data, and repetition symbol data, which are song progression data, and registration data indicating the setting status of each operator on the panel, and the writing control means , when the new performance data input from the input operator when changing the performance data is registration data, if the old performance data at the changed location is registration data, replace the data at the changed location with the new performance data; The automatic performance device according to claim 1, wherein new performance data is inserted immediately before or after the changed location if it is not registered data.