JPH05232938A - Automatic playing device - Google Patents

Abstract

PURPOSE:To easily execute the editing work of automatic playing data. CONSTITUTION:An automatic playing pattern memory 60 is divided into plural rhythm styles and plural sections and each section stores a playing pattern consisting of a series of original playing data. Playing patterns belonging to all the sections corresponding to respective rhythm styles or optional number of playing patterns belonging to the same rhythm style are selectively transferred to a sequencer memory 70 by the operation of an operation panel 20. Playing data to be stored by the transfer or initialization and melody playing data are stored in the memory 70 and both the data are edited (insertion, rewriting and overdubbing) by key playing. In the editing operation, stored data can be changed by a key playing data while repeatedly reproducing an optionally specified section.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic performance device which automatically generates musical tones based on performance data stored in a memory, and more particularly to an automatic performance device capable of editing performance data in the memory. .

[0002]

2. Description of the Related Art Conventionally, an apparatus of this type is disclosed in, for example, Japanese Patent Laid-Open No.
As disclosed in JP-A-1-292689, one of a plurality of accompaniment pattern data stored in advance is designated, the designated accompaniment pattern data is transferred to a rewritable memory, and While playing the transferred accompaniment pattern data and generating musical tones based on the read accompaniment pattern data, a part of the accompaniment pattern data transferred to the memory is played as performance data representing a key played on a keyboard. By performing the replacement, the accompaniment pattern data is edited.

[0003]

However, in the above-mentioned conventional apparatus, the number of accompaniment pattern data that can be transferred to the rewritable memory is limited to one. Therefore, when it is desired to edit many accompaniment pattern data. It took a lot of time to transfer the accompaniment pattern data. Usually, accompaniment pattern data corresponding to accompaniment pattern types such as intro, normal, fill-in, and ending is prepared in advance corresponding to one rhythm style. It is usual to edit a plurality of types of accompaniment pattern data belonging to the above item. In such a case, transfer of a plurality of types of accompaniment pattern data in the editing process becomes a problem.

Further, in the above-mentioned conventional apparatus, even when a part of the accompaniment pattern data is edited while reproducing the same data, the editing is performed while the accompaniment pattern data is reproduced once from the beginning to the end. Had to do. In this case, if the editing is not completed during the reproduction, it is necessary to reproduce the accompaniment pattern data again from the beginning to the end. For these reasons, it is very troublesome to edit the accompaniment pattern data stored in the conventional automatic musical instrument.

The present invention has been made to solve the above problems, and an object of the present invention is to provide an automatic performance device capable of easily editing stored data for controlling the generation of musical tones.

[0006]

In order to achieve the above-mentioned object, the structural feature of the invention described in claim 1 is that a plurality of sets respectively corresponding to a plurality of rhythm styles are provided, and each set has a plurality of sets. It is composed of a plurality of sections respectively corresponding to accompaniment pattern types, and has an accompaniment pattern memory in which accompaniment pattern data of a predetermined length is stored in advance for each section, and an area capable of storing at least accompaniment pattern data belonging to the one set. Writable user memory, style designating means for designating a plurality of rhythm styles, pattern type designating means for designating a plurality of accompaniment pattern types, and transfer for instructing transfer of accompaniment pattern data from the accompaniment pattern memory to the user memory In response to the transfer instruction from the instruction means and the transfer instruction means, The accompaniment pattern data of all the sections belonging to the set corresponding to the specified rhythm style, or stored in the section specified by the pattern type specifying unit that belongs to the set corresponding to the rhythm style specified by the style specifying unit. Transfer control means for selectively transferring and controlling one or more accompaniment pattern data from the accompaniment pattern memory to the user memory, editing means for editing the accompaniment pattern data stored in the user memory, accompaniment pattern memory, and It is provided with a reading means for reading the accompaniment pattern data stored in the user memory with the passage of time, and a tone signal forming means for forming and outputting an accompaniment sound signal according to the accompaniment pattern data read by the reading means. .

Further, the structural feature of the invention described in claim 2 is that the transfer control means of the invention according to claim 1 is:
One or a plurality of accompaniments stored in an arbitrary number of sections designated by the pattern type designating means, which belong to a set corresponding to the rhythm style designated by the style designating means, in response to the transfer designation by the transfer designating means. The pattern data is replaced with transfer control means for controlling transfer from the accompaniment pattern memory to the user memory at the same time.

Further, the constitutional feature of the invention described in claim 3 is that a writable performance data memory for storing a series of musical sound generation control data for controlling the generation of musical sounds over time, and a performance data memory. Read-out means for reading out a series of musical tone generation control data stored in the memory as time passes, musical tone signal forming means for forming and outputting musical tone signals in accordance with the musical tone generation control data read by the reading means, and a performance data memory. A section designating unit for designating a section in which the tone generation control data to be repeatedly read out is stored, out of a series of stored tone generation control data, and a section within the section designated by the section designating unit by controlling the reading unit. Repeat control means for repeatedly reading the tone generation control data and the performance data memory In that a Edetto means for editing a sequence of musical tone generation control data.

[0009]

In the invention according to claim 1 configured as described above, when the transfer instruction means instructs the transfer of the accompaniment pattern data from the accompaniment pattern memory to the user memory, the transfer instruction is responded to. Depending on the function of the transfer control means, the accompaniment pattern data of all the sections belonging to the set corresponding to the rhythm style designated by the style designating means is selectively transferred from the accompaniment pattern memory to the user memory or the style designating means. One or a plurality of accompaniment pattern data belonging to the set corresponding to the rhythm style designated by and stored in the section designated by the pattern type designating means is transferred from the accompaniment pattern memory to the user memory. The accompaniment pattern data transferred to the user memory is edited by the editing means, and the edited accompaniment pattern data is reproduced as an accompaniment sound signal by the reading means and the musical sound signal forming means.

Further, in the invention according to claim 2 configured as described above, the transfer control means, in response to the transfer instruction from the transfer instruction means, forms a set corresponding to the rhythm style specified by the style specifying means. One or a plurality of accompaniment pattern data belonging to an arbitrary number of sections which are continuously or simultaneously designated by the pattern type designating means are simultaneously transferred from the accompaniment pattern memory to the user memory.

In the case of the inventions according to claims 1 and 2,
The edit means is composed of, for example, an insert means, a rewrite means, an overdubbing means, etc., and each of these means stores a new musical tone in a series of musical tone generation control data stored in the user memory and constituting accompaniment pattern data. Generation control data is inserted, and a part of the series of tone generation control data is replaced with new tone generation control data, or new tone generation control data is superposed on the series of tone generation control data.

As described above, according to the first and second aspects of the invention, the accompaniment pattern data corresponding to the accompaniment pattern types such as intro, normal, fill-in, and ending belonging to one rhythm style is edited. It is possible to easily transfer the required one, arbitrary plural or all of the accompaniment pattern data from the accompaniment pattern memory to the user memory, and edit the transferred data (insertion, replacement, superposition, etc.). Therefore, the accompaniment pattern data can be easily edited in a short time.

In the invention according to claim 3 configured as described above, when it is desired to edit a part of data of a series of musical sound generation control data, a specified section including the part is selected by the section specifying means and the repeat is performed. The tone generation control data in the designated section is repeatedly read from the performance data memory by the means and the reading means, and the tone signal based on the repeatedly read tone control data is reproduced by the tone signal forming means. Then, during the repeated reproduction of the tone control data in the designated section, the partial data can be edited by using the editing means.

In this case, the edit means is composed of, for example, a rewrite means, an overdubbing means, etc., and each of these means is included in a series of musical sound generation control data stored in the performance data memory and constituting accompaniment pattern data. Is replaced with new tone generation control data, or new tone generation control data is superposed on the series of tone generation control data.

As a result, according to the third aspect of the invention, when it is desired to edit a part of the musical tone generation control data, the short section including the part is repeated many times. Since it is possible to edit the same portion while playing back, it becomes easy to edit the tone generation control data.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an entire electronic musical instrument incorporating an automatic musical instrument according to the present invention.

This electronic musical instrument has a keyboard 10 and an operation panel 2.
It has 0. The keyboard 10 is composed of a large number of keys, of which the lower keys of the plurality of keys are assigned for accompaniment tone performance, and the upper keys of the keyboard 10 are assigned for melody tone performance. Pressing and releasing of each key of the keyboard 10 is detected by opening and closing a plurality of key switches provided in the key switch circuit 10a corresponding to each key. The operation panel 20, as shown in FIGS.
It has a plurality of lamps and a display 21. The operation of the plurality of operators is detected by opening / closing a plurality of operator switches provided in the operator switch circuit 20a corresponding to the respective operators. The plurality of lamps and the display 21 are controlled by the display control circuit 20b, the lamps are turned on or off, and the display 21 displays characters and the like.

Explaining these lamps and operators, the style operator 22a indicates a rhythm style selection mode for selecting a rhythm style (march, waltz, rock, etc.). Start operator 22b
Is an instruction to start the generation of an automatic accompaniment sound (chord, bass sound, etc.) corresponding to the specified rhythm style,
The stop operator 22c gives an instruction to stop the generation of the automatic accompaniment sound. Up operator 23a and down operator 23b are "1" of various number data STYL, SONG, CUSTOM.
It is to instruct the increase and decrease respectively. The answer operators 24a and 24b are operators for instructing an answer to a question from this device, and the lamp 24c indicates a request state of an answer by this device.

The song operator 25a indicates a record (edit) mode and a play mode of song data (performance data for a melody sound that can be rewritten by the performer). The custom operator 25b is custom accompaniment data (accompaniment data for accompaniment sound that can be rewritten by the performer).
The record mode (edit) and the play mode are designated. The record operator 26a is an operator for switching the record mode and the play mode of the song data and the custom accompaniment data. The record mode operator 26b switches between the insert mode, the overdubbing mode and the rewrite mode in the record mode. The lamps 26c to 26e light up and display the switched insert mode, overdubbing mode or rewrite mode.
The copy operator 27a and the clear operator 27b are for instructing copying and clearing of the custom accompaniment data.

The jump operators 28a and 28b move the read positions of the song data and the custom accompaniment data forward by a predetermined amount, respectively.
Reference characters c and 28d respectively move the read positions of the song data and the custom accompaniment data backward by a predetermined amount. The sequencer start operator 28e is for instructing the start of record and play of the song data and custom accompaniment data.
8f is an instruction to stop the same record and play. The repeat operator 28g is for instructing the repeated reading position of the song data and the custom accompaniment data. The reset operator 28h sets the read position of the song data and the custom accompaniment data to the initial state (head position). The pattern type operators 29a to 29f indicate one of a plurality of accompaniment pattern types consisting of an intro, fill-in 1, fill-in 2, ending, normal and variation belonging to one rhythm style.

Returning to the explanation of FIG. 1, the key switch circuit 10a, the operator switch circuit 20a and the display control circuit 20b are connected to the bus 30.
To 0, a tone signal forming circuit 40, a CPU 50, a program memory 51, a working memory 52, an automatic accompaniment pattern memory 60, a sequencer memory 70, and an external memory input / output device 80 are connected. Music signal forming circuit 40
Depending on the control data supplied via the bus 30,
A melody sound signal and an accompaniment sound signal such as a chord sound and a bass sound are formed and output to the sound system 41. The sound system 41 includes an amplifier and a speaker,
A musical tone corresponding to the various musical tone signals is generated.

The CPU 50 is a power switch (not shown)
When the tempo oscillator 53 receives the tempo clock signal from the tempo oscillator 53, the "interrupt program" shown in FIG. 25 is interrupted. Tempo oscillator 53 is CPU5
It is controlled to 0 and a predetermined cycle (for example, 1 in this embodiment).
The tempo clock signal is output at a period corresponding to a sixth note). The program memory 51 is composed of a ROM, and includes the “main program” (including the subprograms of FIGS. 8 to 24) and the “interrupt program” (FIGS. 26 and 2).
7 subprograms are included). The working memory 52 is composed of a RAM and temporarily stores variables necessary for executing the program.

The automatic accompaniment pattern memory 60 is composed of a ROM, and as shown in detail in FIG. 3, a large number of storage areas 60-1, 60-2, ... Corresponding to a large number of rhythm styles such as march, waltz and rock. It consists of 60-n. Each storage area consists of intro, fill-in 1, fill-in 2, ending, normal and variations 6
It is divided into sections 61 to 66 corresponding to types of accompaniment patterns. Each of these sections 61 to 6
6 is designated by the section number SECT (1 to 6).
An automatic accompaniment pattern of a predetermined length (for example, 2 bars or 4 bars in the present embodiment) is stored in advance in each of the sections 61 to 66, and this automatic accompaniment pattern includes a note code, a key code and timing data. Multiple sets of original accompaniment data (musical sound generation control data)
Are arranged according to the passage of time. In this case, the note code represents that the next data is a key code, the key code represents the pitch of the accompaniment tone (pitch difference with respect to the chord root), and the timing data is the sounding timing (0 to 0) of the accompaniment tone. 31 or 0 to 63). At the end of each of the sections 61 to 66, a section code indicating that the next data is a section number and a section number indicating the section to which the data belong are stored.

The sequencer memory 70 is composed of a song data memory 70A and a custom accompaniment pattern memory 70B, each of which is composed of a RAM, and constitutes a user memory whose contents can be rewritten by the performer. As shown in FIG. 4, the song data memory 70A includes a plurality of (e.g., eight in this embodiment) storage areas 70A-1, 70A-.
2, ..., 70A-8, and each storage area has a large number of sets of song data (musical tone generation control data) with one set of note codes, key codes and timing data similar to the above. ) Is stored over time. The storage areas 70A-1, 70A-2, ..., 70A-8 are designated by the song number data SONG (1-8), and
The key code represents the pitch of the melody tone. Further, each storage area 70A-1, 70A-2, ..., 70A
At the end of -8, an end code indicating the end of song data is stored.

As shown in FIG. 5, the custom accompaniment pattern memory 70B has the storage areas 60-1, 60- shown in FIG.
2, ... 60-n corresponding to a plurality of storage areas 70B-1, 70B-2, (e.g., 8 in this embodiment)
... is divided into 70B-n, and each storage area is 6
It is prepared to be divided into individual sections 71 to 76. In each of these sections 71 to 76, the same six types of accompaniment patterns as described above are stored as custom accompaniment patterns (comprising a large number of custom accompaniment data). Each of these storage areas 70B-
1, 70B-2, ... 70B-n are custom number data CUs
The sections 71 to 76 are designated by the STOM (1 to 8) and the sections number data SECT (1 to 6).

The external memory input / output device 80 exchanges custom accompaniment data and song data between the sequencer memory 70 and an external memory such as a floppy disk or a hard disk.

Next, the operation of the embodiment configured as described above will be described with reference to the flow charts shown in FIGS.
When the power switch is turned on, the CPU 50 starts executing the "main program" in step 100 of FIG.
After the initial setting processing in step 102, step 10
Each operation of the keyboard 10 and the operation panel 20 is detected by repeatedly executing the circulation processing of 4 to 166. On the other hand, when the tempo oscillator 53 outputs a tempo clock signal during this circulation processing, the CPU 50 interrupts the execution of the program being processed and interrupts the "interruption program" of FIG. 25 to perform song data and original accompaniment data. And control the playback of custom accompaniment data. Hereinafter, the specific operations of the present embodiment will be described in terms of the items of the reproduction of the original accompaniment data and the keyboard performance operation and the creation and reproduction of the song data and the custom accompaniment data.

(1) Reproduction of original accompaniment data and keyboard performance operation First, the performer has a style operator 22a and an up operator 2
The rhythm style of automatic accompaniment is selected by operating 3a and the down operator 23b. When the style operator 22a is operated, the CPU 50 determines "YES" in step 104 and executes a "style routine" in step 106 during the circulation processing of the "main program" in FIGS. The details of the "style routine" are shown in FIG. 8, and the CPU 50 starts the execution of the routine in step 200 and executes the processing of steps 202 to 210.

In this case, since the sequencer run flag SCRUN indicating the operating state of the sequencer (the reproduction state of the song data or the custom accompaniment data) is set to "0" by "1", "NO" is determined in step 202. If it is determined that the display mode flag DISPMD is not “0” in the determination processing of step 204, the flag DISPMD is set to “0” in step 206 and previously set in the display control circuit 20b in step 208. The output style number data STYL is output, and the execution of this "style routine" is ended in step 210. Display control circuit 20b
Controls the display 21 of the operation panel 20 to display the rhythm style number represented by the style number data STYL on the display 21. Also, display mode flag DI
If SPMD is "0", the program proceeds to step 210 to end the execution of this "style routine". However, in this case, the rhythm style number is already displayed on the display 21. The display mode flag DISPMD designates the type of data displayed on the display 21. "0" designates the rhythm style number of the automatic accompaniment, "1" designates the song number, and "2". Specifies a custom accompaniment number.

When the up operator 23a or the down operator 23b is operated in such a state, the CPU 50 determines "YES" in step 116 during the circulation processing of the "main program" in FIGS. In step 118, the “increase / decrease routine” is executed. Details of the "increase / decrease routine" are shown in FIG.
Then, the execution of the same routine is started at steps 262 to 29.
The process consisting of 2 is executed.

In this case, since the display mode flag DISPMD has been set to "0" by the above-mentioned processing, it is judged "YES" in step 262, and the automatic accompaniment run flag AARUN is "1" in step 264. It is determined whether or not. This automatic accompaniment run flag AARUN is set to "1" to activate the automatic accompaniment (playback state of the original accompaniment data).
And the stop state of the automatic accompaniment is represented by "0". In this case, since the flag AARUN is set to "0", it is determined as "NO" at step 264 and the program proceeds to step 268. Proceed. The process of step 268 is to increase / decrease the style number data STYL by "1", and when the up operator 23a is operated, the same data STYL is increased by "1" and the down operator 23 is also operated.
When b is operated, the data STYL is decreased by "1". As a result, the rhythm style specified by the style number data STYL is changed. After changing the rhythm style, in step 270, the above-mentioned step 20 is performed.
The changed style number is displayed on the display 21 in the same manner as the process of FIG. 8 (FIG. 8), and the execution of this “increase / decrease routine” is ended in step 292. The automatic accompaniment run flag AARUN is "1" when the automatic accompaniment is in operation.
If it is set to “YE
It is determined to be "S", and the accompaniment sound signal being generated in the musical sound signal forming circuit 40 is erased in step 266.

When the start operator 22b is operated in such a state, the CPU 50 makes a "YES" determination at step 108 during the circulation processing of the "main program" shown in FIGS. The "accompaniment start routine" is executed. The details of the "accompaniment start routine" are shown in FIG. 9, and the CPU 50 starts the execution of the routine in step 220 and executes the processing of steps 222-232.

In this case, since the automatic accompaniment run flag AARUN is set to "0" as described above, step 22
Step 2 of the program is judged as "YES" in 2
Proceed to the determination processing in 24. This judgment process prohibits simultaneous playback of original accompaniment data and custom accompaniment data. In this process, the sequencer run flag SCRUN
Also, it is determined whether the song custom flag SNGCST is "1". In this case, the sequencer run flag
Since SCRUN is set to "0", the above step 2
It is determined to be "NO" in step 24, the automatic accompaniment run flag AARUN is changed to "1" in step 226, and step 228 is executed.
The section number data SECT is set to "5" corresponding to the normal pattern at step 230, the automatic accompaniment start processing is executed at step 230, and the execution of this "accompaniment start routine" is ended at start 232. In this case, in the automatic accompaniment start process, the value of the automatic accompaniment pointer used for reading the original accompaniment data is
The storage areas 60-1 to 60-n corresponding to the rhythm style designated by the style number data STYL, and the section 6 designated by the section number data SECT
It is set to the head address for storing the normal pattern in 1 to 66. Further, in this automatic accompaniment start processing routine, the clock timing CLK indicating the progress state of the automatic accompaniment is set to the initial value "0".

On the other hand, when a performance is started on the keyboard 10 and one of the keys is pressed and released, the CPU 50 gives "YES" at step 164 during the circulation processing of the "main program" of FIGS. The determination is made, and the "key event routine" is executed in step 166. Details of the "key event routine" are shown in FIG.
The execution of the same routine is started at 0, and steps 602 to 6 are executed.
16 processes are performed. In step 602, it is determined to be "YES" based on the automatic accompaniment run flag AARUN set to "1", and in step 606, whether the pressed and released keys belong to the upper range of the keyboard 10 or not. Determine whether it belongs to the key range.

In this case, if the pressed and released keys belong to the upper key range, the melody sound is generated and muted at step 610 based on the determination of "YES" at step 606. .. In this sounding and mute processing, when a key is pressed, a key code representing the same key and a key-on signal are output to the tone signal forming circuit 40.
The musical tone signal forming circuit 40 forms a musical tone signal having a pitch corresponding to the key code and starts to generate it in the sound system 41, from which the musical tone of the pitch of the key pressed by the keyboard 10 is generated. Start being done. When the key is released, the key code representing the released key and the key-off signal are output to the tone signal forming circuit 40 in step 610, and the circuit 40 relates to the released key. The formation and output of the tone signal is stopped. As a result, the musical tone being sounded is muted from the sound system 41. After the processing of step 610, the sequencer run flag SCRUN set to "0" in step 612.
It is determined to be "NO" based on the above, and the execution of this "key event routine" is ended in step 616.

If the key corresponding to the pressed key is in the lower key range, "NO" in step 606.
Then, in step 608, the chord name is determined by the combination of the keys being pressed in the lower key range, and in step 616, the execution of this “key event routine” ends. In this chord name determination process, the key code representing the root note (C, D ...) Of the decided chord name and the decided chord type (Major, Minor ...) are used as root note data ROOT and type data TYPE. Retain.

In this state, the tempo clock signal (signal at every 16th note timing) from the tempo oscillator 53 becomes CP.
Upon arrival at U50, the CPU 50 interrupts the execution of the "main program", starts the execution of the "interrupt program" in step 700 of FIG.
At 02, it is determined whether or not the automatic accompaniment run flag AARUN is "1". In this case, the automatic accompaniment run flag AARUN
Is set to "1", it is judged "YES" in step 702 and the automatic accompaniment process is executed in 704. In this automatic accompaniment process, the original accompaniment data (note code, key code and timing data) pointed to by the automatic accompaniment pointer is read from the automatic accompaniment pattern memory 60, and the read timing data and clock timing CLK. Only when they match, the read key code is converted into a key code representing the pitch corresponding to the chord specified in the lower key range using the root note data ROOT and the type data TYPE, and the tone signal forming circuit is converted. While being output to 40, the automatic accompaniment pointer is advanced to the storage position of the next original accompaniment data. When there are a plurality of original accompaniment data including the same timing data, these original accompaniment data are read out at the same time, and their key codes are pitch-converted. It is output to the forming circuit 40, and the automatic accompaniment pointer is further advanced to the storage position of the next original accompaniment data. Then, the tone signal forming circuit 40 forms an accompaniment tone signal such as a chord tone signal having a pitch represented by the output key code, a bass tone signal, etc.
1, and the system 41 produces an accompaniment sound corresponding to the accompaniment sound signal.

After the processing of step 704, step 7
Sequencer run flag set to "0" in 06
Based on SCRUN, the result of the determination is “NO”, and the program proceeds to step 716. At step 716,
It is determined to be "YES" based on the automatic accompaniment flag AARUN set to "1", and "1" is added to the clock timing CLK in step 718, and step 720
Ends the execution of this "interruption program". And this "interrupt program" is the tempo oscillator 53
Is executed at every arrival of the clock signal from step 71.
Since the clock timing CLK is sequentially stepped up by the processing of 8, the original accompaniment data is sequentially read out with the passage of time, and the accompaniment sound corresponding to the chord specified in the lower key range of the keyboard 10 is automatically generated. It is pronounced sequentially. In addition,
In this case, the original accompaniment data regarding the normal pattern has been read, and regarding this reading, when the last section code and section number in the same data are read by the automatic accompaniment processing in step 704. The automatic accompaniment pointer is returned to the head address of the same data, and the same data is continuously read.

In such a state, the stop operator 22c
When is operated, the CPU 50 performs “YES” in step 112 during the circulation processing of the “main program” in FIGS.
Then, in step 114, the “accompaniment stop routine” is executed. The details of the "accompaniment stop routine" are shown in FIG. 10, and the CPU 50 starts the execution of the routine in step 240 and executes the processing of steps 242 to 248.

At step 242, "Y" is determined based on the automatic accompaniment run flag AARUN set to "1".
ES ”, and the same flag AARUN is determined in step 244.
Is changed to "0", the automatic accompaniment stop process is executed in step 246, and the execution of this "accompaniment stop routine" is ended in step 248. In this case, in the automatic accompaniment stop processing, the accompaniment sound signal being formed and output by the musical sound signal forming circuit 40 is erased. On the other hand, since the automatic accompaniment run flag AARUN is changed to "0" as described above, even if the "interrupt program" is executed by the arrival of the tempo clock signal, steps 702 and 716 are executed.
(FIG. 25), both are determined to be “NO”, and no substantial processing is performed in the program. This allows
After that, the pronunciation of the automatic accompaniment sound stops.

On the other hand, while the automatic accompaniment is in operation (automatic accompaniment run flag AARUN = "1"), pattern type operators 29a-2
When any of 9f is operated, the CPU 50 causes the CPU 50 shown in FIGS.
During the circulation processing of the "main program" of step 144,
In step 146, the "accompaniment pattern routine" is executed. The details of the "accompaniment pattern routine" are shown in FIG. 17, and the CPU 50 starts execution of the routine at step 420, and then at step 4
22 to 436 are executed.

In step 422, "Y" is set based on the automatic accompaniment run flag AARUN set to "1".
ES ", and" 1 "to" 6 "corresponding to the pattern type operators 29a to 29f operated in step 432.
Set the value of as the section number data SECT. Next, in step 434, the value of the automatic accompaniment pointer is set to
Set to the beginning address that stores the automatic accompaniment pattern (original accompaniment data) that belongs to the rhythm style specified by the style number data STYL and that corresponds to the section number data SECT, such as intro, fill-in 1, fill-in 2, ending, and variation. And the clock timing CLK is set to the initial value "0".

Thus, when the "interrupt program" (FIG. 25) is executed by the arrival of the tempo clock signal, each storage area 60-1 to 60-1 of the automatic accompaniment pattern memory 60 in the automatic accompaniment process of step 704.
The original accompaniment data in the respective sections 61 to 64, 66 of 60-n will be reproduced, and a change can be added to the automatic accompaniment sound being generated. In this case, when the reading of the accompaniment pattern (original accompaniment data) such as intro, fill-in 1, fill-in 2, and variations is completed, that is, when the section code and the section number are read, the reading of the accompaniment data is completed and the automatic accompaniment pointer is set. Is set to the head address of the original accompaniment data of the normal pattern so that the normal accompaniment pattern is continuously reproduced. When the reading of the original accompaniment data of the ending accompaniment pattern is completed, the automatic accompaniment run flag AARUN is set to "0" to terminate the generation of the automatic accompaniment sound.

(2) Creation and reproduction operation of song data and custom accompaniment data a. Initial Writing of Song Data First, a method of writing song data into the song data memory 70A for the first time will be described. As a method of writing this data, there are a method of writing data from an external memory device and a method of writing performance data of the keyboard 10 as song data. When writing data from the external memory device, a program process (not shown) activates the external memory input / output device 80 to read the data stored in the external memory device such as a floppy disk or hard disk to read the song data memory 7
It should be written in 0A. When the performance data of the keyboard 10 is used, this is a special case of editing the melody performance data in which the performance data of the keyboard 10 is overwritten as song data in the song data memory 70A in which no song data is stored, which will be described later. Since the description overlaps with the description of the data edit, the description thereof will be omitted.

When the song data is written in the song data memory 70A as described above, the performer has a song operator 25a, an up operator 23a, and a down operator 2.
3b to operate the storage area 70A- of the same memory 70A.
It is necessary to specify 1 to 70A-8. Song operator 2
When 5a is operated, the CPU 50 displays "YE" in step 120 during the circulation processing of the "main program" in FIGS.
When it is determined to be "S", a "song routine" is executed in step 122. The details of the "song routine" are shown in FIG. 12, and the CPU 50 starts the execution of the routine at step 300 and executes the processing of steps 302 to 312.

In this case, the sequencer run flag SCRUN
Is set to "1" and the sequencer is in the operating state, it is determined to be "YES" in step 302, and the substantial process is not executed, and the execution of this "song routine" is ended in step 312. To do. If the sequencer run flag SCRUN is set to "0" and the sequencer is in the stopped state, the processes of steps 304 to 310 are executed based on the determination of "NO" in step 302, and in step 312. The execution of this "song routine" is completed. The processing of these steps 304 to 308 is performed by the steps 204 to 204 of the above-mentioned "style routine" (FIG. 8).
It is similar to the processing of 208, and if the display mode flag DISPMD is not "1" by these processings, the flag DI
SPMD is set to "1" indicating the song number designation mode, and the song number data SO is displayed on the display 21.
Display the value represented by NG. Further, in this case, the processing of step 310 sets the song custom flag SNGCST to "0" indicating the processing mode of the song data. The song custom flag SNGCST indicates the processing mode of the custom accompaniment data by "1".

When the up operator 23a or the down operator 23b is operated in such a state, the CPU 50 determines "YES" in step 116 of the "main program" of FIGS. The "increase / decrease routine" (FIG. 11) is executed. This "increase / decrease routine"
In step 2, since the display mode flag DISPMD is set to "1" and the sequencer run flag SCRUN is set to "0" indicating the stopped state of the sequencer, step 2
62, 272, 274 are sequentially "NO", "NO",
It is determined to be "YES" and the processes of steps 276 to 282 are executed. In steps 276 and 278, the style number data STYL in steps 268 and 270 described above is used.
The song number data SONG is increased / decreased by the operation of the up operator 23a and the down operator 23b in the same manner as in the process of 1.
1 is displayed above. Further, the storage area 70A-1 of the song data memory 70A in which the song pointer is represented by the song number data SONG by the processing of step 280
˜70A-8, the clock timing CLK is set to the initial value “0” by the process of step 282.

B. Initial Writing of Custom Accompaniment Data Next, a method of initially writing the accompaniment data in the custom accompaniment pattern memory 70B will be described.
In addition to the method of writing data from the external memory device and the method of writing key performance data by the keyboard 10 similar to the above, there is also a method of copying the original accompaniment data in the automatic accompaniment pattern memory 60. The case of writing data from the external memory device and the case of using the key performance data by the keyboard 10 is the same as the case of the above-mentioned song data, and therefore its explanation is omitted.

In addition, the custom accompaniment pattern memory 7
Even when the accompaniment data is written to 0B for the first time, the performer must operate the custom operator 25b, the up operator 23a, and the down operator 23b to specify the storage areas 70B-1 to 70B-8 of the memory 70B. There is. When the custom operator 25b is operated, the CPU 50 causes the CPU 50 shown in FIG.
During the circulation process of the "main program" of 7, step 12
It is determined to be "YES" in step 4, and the "custom routine" is executed in step 126. The details of the "custom routine" are shown in FIG.
The execution of the same routine is started at 20, and steps 322 to
332 is executed.

Also in this case, the sequencer run flag SCRUN
Is set to "1" and the sequencer is in the operating state, it is determined to be "YES" in step 322, and the substantial processing is not executed, and the execution of this "custom routine" is ended in step 332. To do. If the sequencer run flag SCRUN is set to “0” and the sequencer is in the stopped state, the processes of steps 324 to 330 are executed based on the judgment of “NO” in step 322, and in step 332. The execution of this "custom routine" is completed. The processing of these steps 324 to 330 is the same as step 304 of the "song routine" (FIG. 8) described above.
It is similar to the processing of ~ 310, and by these processing,
If the display mode flag DISPMD is not "2", the same flag
DISPMD is set to "2" indicating the custom number designation mode, and the value indicated by the custom number data CUSTOM is displayed on the display 21. Also, in this case,
By the processing of step 330, the song custom flag SN
GCST is set to "1" indicating the processing mode of custom data.

When the up operator 23a or the down operator 23b is operated in such a state, the "increase / decrease routine" (FIG. 11) is executed in step 118 of FIG. 6 as in the case of writing the song data. Run. In this "increase / decrease routine", the display mode flag DISPMD is set to "
Since it is set to "2" and the sequencer run flag SCRUN is set to "0" indicating the stop state of the sequencer, steps "262", "272" and "274" are sequentially followed by "N".
It is determined to be “O”, “NO”, or “NO”, and step 284
~ 290 processing is executed. These steps 284-
As in the case of the song number data SONG, the custom number data CUSTOM is increased / decreased and displayed on the display 21 by the processing of 290, and the custom pointer is stored in the custom accompaniment pattern memory 70B designated by the custom number data CUSTOM. Storage area 70B-1
70B-8 is set to the head address and the clock timing CLK is set to the initial value "0".

Next, the original accompaniment data in the automatic accompaniment pattern memory 60 is transferred to the custom accompaniment pattern memory 70.
The case of copying to B will be described. Also in this case, the storage areas 70B-1 to 70B- of the custom accompaniment pattern memory 70B to which the original accompaniment data should be copied.
In order to specify 8, the custom number data CUSTOM is set to a desired value as described above. It is also necessary to specify the storage areas 60-1 to 60-n of the automatic accompaniment pattern memory 60 that stores the original accompaniment data to be copied. In this case, the style number data STYL is set to a desired value by operating the style manipulator 22a, the up manipulator 23a, and the down manipulator 23b, as described in the reproduction of the original accompaniment data.

After setting such custom number data CUSTOM and style number data STYL, the performer operates the copy operator 27a. By the operation of the copy operator 27a, the CPU 50, which is circulating the "main program" of FIGS. 6 and 7, determines "YES" in step 136 and executes the "copy routine" in step 138. The details of the "copy routine" are shown in FIG. 15, and the CPU 50 starts the execution of the routine at step 360 and executes the processing at steps 362-390.

In this case, the automatic accompaniment run flag AARUN is set to "0" which represents the stopped state of the automatic accompaniment, and the sequencer run flag SCRUN represents the stopped state of the sequencer ".
If it is set to 0 ”, step 362,
It is determined that both are "NO" at 364, and the lamp 24c is controlled by controlling the display control circuit 20b at step 366.
Blink. Next, in step 368, the all copy flag ACOPY is set to "1" and step 3
Copy section number data CS for specifying the section number of the original accompaniment data transferred at 70
Clear ECT (1) to CSECT (6), and then step 372-
A circulation process consisting of 378 is executed. During this circulation process,
Pattern type operators 29a to 29f and answer operator 2
If neither of the operators 4a and 24b is operated, the circulation processing is repeatedly executed based on the determination of "NO" in steps 372 and 378.

When any of the pattern type operators 29a to 29f is operated, it is determined "YES" in step 372, and the pattern type operation operated as the copy section number data CSECT (i) in step 374. Child 29
The value (1-6) corresponding to a-29f is set. In addition,
The variable i is sequentially incremented by "1" from "1" to "6" every time the pattern type operators 29a to 29f are operated during the circulation process including steps 372 to 378. .. As a result, one or a plurality of accompaniment patterns are designated as the accompaniment patterns to be copied (consisting of a large number of original accompaniment data).
If at least one accompaniment pattern is designated, the all copy flag ACOPY is set to "0" in step 376.

On the other hand, when the performer operates the answer operation elements 24a and 24b during the circulation processing consisting of steps 372 to 378, it is determined as "YES" in step 378 and the answer operation element 24a ( Answer operator 24b (NO operator) has been operated?
Is operated. In this case, the answer operator 24
If a is operated, "Y" in step 380
Based on the determination of "ES", it is determined in step 382 whether the all copy flag ACOPY is "1". Now, as described above, the pattern type operators 29a to 29f are executed during the execution of the circulation process including steps 372 to 378.
All copy flag AC is operated by any one of
If OPY has been changed to "0", it is determined to be "NO" in step 382, and the automatic accompaniment pattern memory 60 to the custom accompaniment pattern memory 70B is determined in step 384.
Partial copy processing of the accompaniment pattern is executed. Also,
If none of the pattern type operators 29a to 29f are operated during the execution of the circulation process including steps 372 to 378, the all copy flag ACOPY is "1".
Therefore, in step 382, it is determined to be “YES”, and in step 386, a process of copying all the accompaniment patterns from the automatic accompaniment pattern memory 60 to the custom accompaniment pattern memory 70B is executed.

In the partial copy process, the accompaniment patterns stored in the storage areas 60-1 to 60-n designated by the style number data STYL in the automatic accompaniment pattern memory 60 (composed of a large number of original accompaniment data). ), And the pattern type operators 29a to 29f
Section number data for copy set by the operation of
The accompaniment pattern stored in one or a plurality of sections 61 to 66 designated by CSECT (1) to CSECT (6) is a storage area 70B-1 designated by the custom number data CUSTOM in the custom accompaniment pattern memory 70B. ~ 70
Copied to B-8. Further, in the all copy processing, storage areas 60-1 to 60-n designated by the style number data STYL in the automatic accompaniment pattern memory 60.
All the accompaniment patterns stored in the memory are copied to the storage areas 70B-1 to 70B-8 designated by the custom number data CUSTOM in the custom accompaniment pattern memory 70B. As a result, the required number of accompaniment patterns in the automatic accompaniment pattern memory 60 can be easily copied to the custom accompaniment pattern memory 70B.

After the processing of steps 384 and 386, the lamp 24c is turned off in step 388, and step 3
At 90, the execution of this "copy routine" ends. On the other hand, during the circulation process consisting of the steps 372 to 378,
When the answer operator 24b (NO operator) is operated, it is determined to be "NO" in step 380, and step 3
At 88, the lamp 24c is turned off as described above, and at step 390, the execution of this "copy routine" ends. In this case, the accompaniment pattern is not copied.

C. Clearing Song Data and Custom Accompaniment Data As described above, when clearing the data stored in the song data memory 70A or the custom accompaniment pattern memory 70B, the performer must perform the song operation 25a, the custom operation 25b, and the up operation. By operating the child 23a or the down operator 23b, the song number data SONG or the custom number data CUSTOM is set to an arbitrary value and the song custom flag SNGCST is set as described above.
After setting to "0" or "1", the clear operator 27b is operated. When the clear operator 27b is operated, the CPU
50 is the circulation processing of the "main program" of FIGS.
It is determined to be “YES” in step 140, and step 1
At 42, a "clear routine" is executed. The details of the "clear routine" are shown in FIG. 16, and the CPU 50 starts the execution of the routine in step 400 and executes the processing of steps 402 to 410.

In this case, the sequencer run flag SCRUN
Is set to "1" and the sequencer is in the operating state, it is determined to be "YES" in step 402, and the substantial processing is not executed, and the execution of this "clear routine" is ended in step 410. To do. If the sequencer run flag SCRUN is set to "0" and the sequencer is in the stopped state, it is determined to be "NO" in step 402 and the song custom flag SNGCST is determined in step 404.
Is "0". If the song custom flag SNGCST is set to "0" indicating the processing mode of the song data, it is determined to be "YES" at step 404 and designated by the song number data SONG in the song data memory 70A at step 406. Storage area 70
Clear the song data stored in A-1 to 70A-8. If the song custom flag SNGCST is set to "1" indicating the processing mode of the custom accompaniment data, it is determined as "NO" in step 404, and the custom number data in the custom accompaniment pattern memory 70B is determined in step 408. Storage area 70 specified by CUSTOM
The custom accompaniment data stored in B-1 to 70B-8 is cleared.

D. Editing Song Data When editing song data in the song data memory 70A, the performer first operates the song operator 25a, the up operator 23a, and the down operator 23b,
Storage areas 70A-1 to 70A-8 in a song data memory 70A that stores song data to be edited
Is specified. By operating these operators 25a, 23a, 23b, as described above, the song custom flag SN
GCST is set to "0" and song number data
SONG is set to a desired value (1-8). After this operation,
The performer operates the record operator 26a,
Sequencer mode flag SCMD represents the record mode ”
When the record operator 26a is operated, the CPU 50 during the circulation processing of the "main program" in steps 104 to 166 of FIGS.
In step 130, the sequencer mode flag SCMD is inverted (changed from "0" to "1" or changed from "1" to "0").

In such a state, the performer operates the record mode operator 26b to set the record mode. When the record mode operator 26b is operated, C
During the circulation processing of the "main program" of FIGS. 6 and 7, the PU 50 determines "YES" at step 132 and executes the "record mode routine" at step 134.
The details of the "record mode routine" are shown in FIG. 14, and the CPU 50 starts the execution of the routine in step 340 and executes the processing of steps 342 to 356.

In this case, if the record mode flag RCMD was previously "0", "YE" is entered in step 342.
S ", and the flag RCMD is set to" 1 "indicating the rewrite mode in step 352. If the record mode flag RCMD was previously "1", step 34
It is determined to be "NO" and "YES" at 2 and 344, respectively, and the flag RCMD is set to "2" indicating the overdubbing mode at step 350. Record mode flag
If RCMD was previously "2", steps 342, 3
Both are determined to be “NO” at 44 and the repeat flag REPT
Is "0", in step 346 "Y
ES ", and the flag RCMD is set to" 0 "indicating the insert mode in step 348. The reason why the repeat flag REPT is "0" is that the repeat section of the song data due to the repeat is changed when new song data is inserted into the existing song data. This is to avoid After the processing of steps 348-352 as described above,
Record mode flag set in step 354
One of the lamps 26c to 26e corresponding to the RCMD value (0 to 2) is turned on. By turning on the lamps 26c to 26e, the player can visually judge the record mode.

Next, the performer selects the jump operator 28a ...
By operating 28d or the reset operator 28h, the reading start position of the song data memory 70A is set. When any one of these operators 28a to 28d, 28h is operated, the CPU 50 displays "YE" in step 156 during the circulation processing of the "main program" in FIGS.
When it is determined to be "S", the "playback position routine" is executed in step 158. The details of the "playback position routine" are shown in FIG.
, The CPU 50 starts executing the routine in step 540 and executes the processing of steps 542-562.

In this case, since the sequencer is still stopped and the sequencer run flag SCRUN is set to "0", it is determined to be "NO" at step 542 and the program proceeds to step 544 and thereafter. Note that the sequencer run flag SCRUN
Is set to "1" and the sequencer mode flag SCMD
Is set to "0" indicating the record mode, "YES" is determined in the step 542, and the execution of the "reproduction position routine" is ended in the step 562. As a result, when the sequencer is operating in the record mode, changing the read start position of the song data memory 70A is prohibited.

In step 544, it is determined whether the operated operator is the reset operator 28h. If the operated operator is the reset operator 28h, it is determined to be "YES" in step 544, the clock timing CLK is initially set to "0" in step 554, and the song data is used in step 556. The pointer is set to the head address of the storage areas 70A-1 to 70A-8 of the song data memory 70A designated by the song number data SONG, and the repeat flag REPT is cleared to "0" in steps 558 and 560. , Repeat start data REPST is set to "0". In addition,
The repeat flag REPT represents a repeat mode by "1", and the repeat start data REPST represents a repeat start timing in the repeat mode.

If the operated operator is not the reset operator 28h, it is determined to be "NO" in step 544 and the clock timing CLK is determined in step 546.
Is set to a value according to the type of the operated operator among the jump operators 28a to 28d. Jump operator 28
When a is operated, the clock timing CLK is advanced by "1" from the current value, that is, by the amount equivalent to the 16th note. When the jump operator 28b is operated, the clock timing CLK has a value (16, 32, 4) corresponding to the first bar line position in the increasing direction from the current value.
(8, 0), that is, the head position of the next bar is advanced. When the jump operator 28c is operated, the clock timing CLK is returned by a value smaller than the current value by "1", that is, by the amount corresponding to the 16th note. Jump operator 28
When d is manipulated, the clock timing CLK is returned to the value (0, 16, 32, 48) corresponding to the first bar line position in the decreasing direction from the current value, that is, the head position of the current bar.

In step 548, the song data pointer is the storage area 70A-1 to 70A-8 of the song data memory 70A designated by the song number data SONG, and the song which stores the timing data which coincides with the clock timing CLK. Set the data address, clear the repeat flag REPT to "0" in steps 550 and 552, and repeat start data REPST.
Is set to the clock timing value CLK.

In this state, the performer operates the sequencer start operator 28e to instruct to read out the song data in the song data memory 70A, and to edit the song data in the upper key region of the keyboard 10. To start playing the melody. When the sequencer start operator 28e is operated, the CPU 50 displays "Y" in step 148 during the circulation processing of the "main program" in FIGS.
When it is determined to be "ES", a "reproduction start routine" is executed in step 150. The details of the "playback start routine" are shown in Fig. 1.
8, the CPU 50 starts the execution of the routine in step 440 and executes the processing of steps 442-458.

In this case, since the song custom flag SNGCST is set to "0" as described above, step 4
It is judged "NO" at 42, and it is judged at step 444 whether the sequencer run flag SCRUN is "1". In this case, since the sequencer is still stopped and the sequencer run flag SCRUN is "0", it is determined to be "NO" in step 444 and the program proceeds to step 446 and thereafter. If the sequencer is in the operating state and the sequencer run flag SCRUN is already set to "1", it is determined to be "YES" in step 444, and this "reproduction start routine" is executed in step 458. finish.

In the processing after step 446,
At step 446, the sequencer run flag SCRUN is set to "1" indicating the operating state of the sequencer, and step 44
In step 8, the repeat flag REPT is set to "0", in step 450 the repeat start data REPST is set to the clock timing value CLK, and in step 452 the record mode flag RCMD is set to "0" indicating the insert mode. It is determined whether it has been done.

If this record mode flag RCMD is set to "0", it is determined to be "YES" in step 452, and the insert clock timing INSCLK is initialized to "0" in steps 454 and 456 and the insert is performed. Start data INSST is used as clock timing value CLK
Is set, and the execution of this "reproduction start routine" is ended in step 458. It should be noted that the insert clock timing INSCLK represents the elapsed time after entering the insert mode, and the insert start data INSST represents the timing when entering the insert mode. Further, when the record mode RCMD is set to a value other than "0" indicating a mode other than the insert mode, it is determined to be "NO" in step 452 and this "reproduction start routine" of step 458 is executed. Finish execution.

When the tempo clock signal from the tempo oscillator 53 is supplied to the CPU 50 in such a state, C
The PU 50 executes the "interruption program" of FIG. In this program, automatic accompaniment run flag AA
If RUN is set to "1", then step 7 above
By the processing of 04, the key performance in the lower key range of the keyboard 10 and the generation of the automatic accompaniment sound according to the original accompaniment data read from the automatic accompaniment pattern memory 60 are controlled.
In this case, the sequencer run flag SCRUN is "1".
Since it is set to "YES" in step 706.
And the sequencer mode flag is determined in step 708.
SCMD is "1" or record mode flag RC
It is determined whether MD is "2". In this case, since the sequencer mode flag SCMD is set to "0" indicating the record mode, if the record mode flag RCMD is set to "2" indicating overdubbing, it is determined to be "YES" in step 708. Step 7
At 14, a "reproduction processing routine" for reproducing the song data as a melody sound is executed.

If the record mode flag RCMD is set to "0" indicating the insert mode, "NO" is determined in step 708, but "YES" is determined in step 710, and step 712 is performed. Then, "1" is added to the insert clock timing INSCLK to advance the same timing INSCLK. As a result, the insert clock timing INSCLK represents the elapsed time from the start of the insert mode. Further, if the record mode flag RCMD is set to "1" indicating the rewrite mode, it is determined to be "NO" in steps 708 and 710, and the program proceeds to step 716. In this way, in the overdubbing mode, the song data is reproduced as a melody sound, but in the insert mode and the rewrite mode, the song data is not reproduced as a melody sound. Even in this case, step 71
By the processing of Nos. 6 and 718, the clock timing CLK is incremented by "1" each time the tempo clock signal arrives, as in the case described above.

Next, the processing of the "reproduction routine" of step 714 will be described in detail. The CPU 50 starts executing the "reproduction routine" in step 730 of FIG. 26, and in this routine, the remainder obtained by dividing the clock timing CLK by "16" in step 732 is "0".
Is determined, that is, whether or not the same timing CLK indicates the bar line position, and step 73
At 4,740, it is determined whether the repeat flag REPT is "1" or "2". In this case, since the repeat flag REPT is "0", the clock timing
The program proceeds to step 752 of FIG. 27 regardless of whether CLK indicates the bar line position.

In this case, since the song custom flag SNGCUS is set to "0" indicating the processing mode of the song data, it is judged "YES" at step 752 and designated by the song number data SONG at step 754. Storage area 70A-1 of song data memory 70A
The song data pointed to by the song pointer is read from 70A-8, and it is determined at step 758 whether the data includes an end code or a section code. If the read song data does not include an end code or a section code, the timing data in the read song data is compared with the clock timing CLK in step 760. In this comparison, if the timing data and the clock timing CLK do not match, it is determined to be "NO" in step 760 and the execution of this "interruption routine" is finished in step 776. If the timing data and the clock timing CLK match, it is determined to be “YES” in step 760 and the program proceeds to the determination process of step 762.

Also in this case, since the song custom flag SNGCST is set to "0" as described above, it is determined to be "NO" in step 762, and the key code in the read song data is determined in step 766. And the key-on signal are output to the tone signal forming circuit 40, the song pointer is advanced to the next song data in step 768, and the program is returned to step 752. Then, using this advanced song pointer, new song data is read from the same storage area as above, and if the timing data in the same data and the clock timing CLK match, the key code and key-on in this song data are read. The signal is also output to the tone signal forming circuit 40. Then, until a mismatch is detected by the comparison / determination process of step 760,
The circulation process including steps 752, 754, 758 to 768 is repeatedly executed.

In this way, the tone signal forming circuit 40 is set to 1
When a set or a plurality of sets of key codes and key-on signals are supplied, the tone signal forming circuit 40 forms a melody tone signal corresponding to the key code to generate a sound system 41.
The system 41 produces a melody sound corresponding to this melody sound signal. As a result, the melody sounds corresponding to the song data stored in the song data memory 70A are sequentially sounded over time.

On the other hand, when a key belonging to the upper key range is played on the keyboard 10, the CPU 50 causes the CPU 50 of FIG.
"Key event routine" of step 602 is executed.
After passing through the processes of ˜606, the program is surely advanced to step 610. Then, by the processing of step 610, the generation and mute of the melody sound according to the key performance is controlled as described above. Also, in this case, the sequencer run flag
Since SCRUN is set to "1" and the sequencer mode flag SCMD is set to "0", step 612
Based on the determination of “YES” in step 614, the processing of the “recording routine” is executed in step 614.

The details of this "recording routine" are shown in FIG. 24. If the record mode RCMD is set to "0" or "1" indicating the insert mode or the rewrite mode, starting at step 620. , Step 6
It is determined to be "NO" in step 22, and in step 634, the buffer provided in the working memory 52 stores the note code, the key code representing the operated key, and the clock timing CLK as song data, and step 636.
Then, the processing of this "recording routine" is completed. In the storage of this song data, the same data is sequentially accumulated and stored in the buffer memory as time passes.

On the other hand, if the record mode flag RCMD is set to "2" indicating overdubbing, step 6
It is determined to be "YES" at 22 and "at step 624"
It is determined to be "YES" based on the song custom flag SNGCST set to "0", and steps 626 and 628 are executed.
At the song number data SONG
Is additionally written in the storage areas 70A-1 to 70A-8 of the song data memory 70A designated by the step 636, and the processing of the "recording routine" is completed in step 636.
In this case, in step 626, the song data in the designated storage areas 70A-1 to 70A-8, which includes the timing data indicating a value larger than the clock timing value CLK, is divided into song data one by one. It is shifted to the rear one by one. In step 628, the note code, the key code representing the operated key, and the clock timing CLK are stored as new song data in the storage space vacated by the shift.

When the sequencer stop operator 28f is operated during the reproduction of the song data and the performance of the upper key range, the CPU 50 causes the "main program" of FIG. Yes, "
In step 154, the "reproduction end routine" is executed.
The details of the "playback end routine" are shown in FIG.
The CPU 50 starts the execution of the same routine in step 460 and executes the processing of steps 462 to 492.

In this case, the sequencer run flag SCRUN
Is "1", it is determined to be "YES" in step 462, and the sequencer run flag is set to SC in step 464.
Set RUN to "0". Then, in step 466 "
It is determined to be "YES" based on the sequencer mode flag SCMD set to "0", and it is determined in steps 468 and 488 whether the record mode flag RCMD is "0" or "1".

If the record mode flag RCMD is set to "0" indicating the insert mode, step 468
In step 470, it is determined to be "YES", and in step 470 it is determined to be "YES" based on the song custom flag SNGCST, and in steps 472 to 478, the song written in the buffer is written. Data is stored in the storage areas 70A-1 to 70A-8 of the song data memory 70A designated by the song data SONG, and the insert start data INSST (step 45 in FIG. 18).
Insert it at the storage location specified by (6).

In step 472, the song data in the designated storage area and after the designated storage position is shifted backward by the amount of the song data stored in the buffer. In step 474, the insert clock timing INSC is added to the timing data in the shifted song data.
Add LK and store again in the same position. This insert clock timing INSCLK is set in step 712 of FIG. 25 every time the “interrupt program” is executed during the insert mode.
Since the steps are sequentially performed by the processing of step 1, the re-stored song data is shifted backward by the insert mode time. In step 476, the song data in the buffer is copied to an empty area by the shift in the designated storage area, and in step 478, the song data in the buffer is cleared. As a result, the key performance data played in the upper key range of the keyboard 10 is inserted into the designated positions in the designated storage areas 70A-1 to 70A-8 of the song data memory 70A.

If the record mode flag RCMD is set to "1" indicating the rewrite mode, step 4
68 and 488 determine “NO” and “YES”, respectively, and execute the process of “rewrite routine” in step 490. The execution of this "rewrite routine" is shown in FIG.
As will be described in detail in FIG. 5, the determination is “YES” based on the song custom flag SNGCST which is started in step 500 and set to “1” in step 502. , The written song data in the buffer is overwritten in the storage areas 70A-1 to 70A-8 of the song data memory 70A designated by the song data SONG, which store the song data that coincides with the key performance timing. To do.

In step 504, the song data in the designated storage area is indicated by the timing data in the first song data and the timing data in the last song data stored in the buffer. Delete song data including time zone timing data. In step 506, the song data behind the deleted portion is shifted back and forth to match the storage area of the deleted portion with the amount of song data stored in the buffer. In step 508, the song data in the buffer is copied to an empty area by the shift in the designated storage area, and in step 510, the song data in the buffer is cleared. As a result, the key performance data played in the lower key range of the keyboard 10 is stored in the designated storage area 70A of the song data memory 70A.
It is overwritten in the storage position within -1 to 70A-8 and designated by the performance timing.

Furthermore, if the record mode flag RCMD is set to "2" indicating overdubbing, it is determined "NO" in both steps 468 and 488 (FIG. 19), and this "reproduction" is executed in step 492. The processing of the "end routine" is ended. In this case, by the processing of steps 626 and 628 of FIG. 24, the key performance data is added as song data to the designated storage areas 70A-1 to 70A-8 of the song data memory 70A during the key performance. Therefore, when the sequencer is stopped, the song data previously stored in the designated storage area is overlaid with new song data by key performance.

On the other hand, as described above, even if the sequencer stop operator 28f is not operated, the song data memory 70
Even when the end code is read from the A storage areas 70A-1 to 70A-8, the operation of the sequencer is stopped. That is, by reading the end code, it is determined to be “YES” in step 758 of FIG. 27, and it is determined to be “YES” in step 770 based on the sequencer mode flag SCMD set to “0”, and the step is determined. 7
At 72, the above-mentioned "reproduction end routine" is executed. As a result, in this case, the storage areas 70A-1 to 70A- of the song data memory 70A according to each record mode.
Key performance data is written as song data in 8,
Sequencer operation stops.

In editing the song data stored in the song data memory 70A as described above, the same data was reproduced only once, but next, while repeatedly reproducing the song data belonging to the desired section. A repeat edit process for editing the same data will be described.

In this case as well, the performer does not use the song operator 25.
a, one of the storage areas 70A-1 to 70A-8 in the song data memory 70A is designated by the operation of the up operator 23a and the down operator 23b, and the designation is made by the jump operators 28a to 28d and the reset operator 28h. After the reproduction start position (represented by the repeat start data value REPST) of the song data in the designated storage area is designated, the sequencer start operator 28f is operated to start the reproduction of the song data from the designated position. Then, during the reproduction of the song data, the performer
In order to determine the last bar of the repeated reproduction, the repeat operator 28g is operated at an arbitrary timing during the reproduction of the same bar.

By the operation of the repeat operator 28g,
The CPU 50 determines “YES” in step 160 during the circulation processing of the “main program” in FIGS. 6 and 7, and executes the “repeat routine” in step 162. Details of the "repeat routine" are as shown in FIG.
The execution of the routine is started in step 580, and it is determined to be "YES" based on the sequencer run flag SCRUN set to "1" in step 582, and the program is advanced to the determination processing in step 584. In this determination process, if the sequencer mode flag SCMD is set to "0" indicating the record mode and the record mode flag RCMD is set to "0" indicating the insert mode, the determination base is "YES". Then, the program proceeds to step 592 where the execution of the "repeat routine" is completed. As a result, in this case, the song data in the desired section is not repeatedly reproduced.

On the other hand, even if the sequencer mode flag SCMD is set to "0" indicating the record mode, if the record mode flag RCMD is set to "1" or "2" indicating the rewrite mode or the overdubbing mode. , NO in step 584, and step 5
By the processing of 86 and 588, the repeat flag REPT which was previously set to "0" is changed to "1".

When the above-mentioned "interrupt routine" of FIG. 25 is executed in the state where the repeat flag REPT is set to "1", the step of FIG. A repeat process consisting of 732 to 750 is executed. In this repeat processing, if the clock timing does not indicate the bar line position (CL
K mod 16 ≠ 0), it is determined to be “NO” in step 732, and the program proceeds to step 752 in FIG. However, when the clock timing CLK indicates the bar line position, it is determined to be “YES” in step 732 and “YES” in step 734, that is, the repeat flag RE.
It is determined that PT is "1", the repeat flag REPT is changed to "2" in step 736, and the repeat end data REPEND is set to the clock timing value CLK in step 738.

Next, in step 744, the clock timing CLK is set to the repeat start data REPST set in the processing of steps 552 and 560 of the "reproduction position routine" of FIG. Then, in step 746, the song custom flag SNGCST set to "0" is set.
If YES in step 748, the timing data in the storage areas 70A-1 to 70A-8 of the song data memory 70A designated by the song number data SONG and matching the clock timing CLK are determined. The song pointer is set to the storage location of the song data including. Also, in this case, the clock timing CLK
If there is no song data including the timing data that matches with, the song pointer is set to the storage position of the song data including the timing data that matches the timing immediately after the clock timing CLK. As a result, the reproduction position of the song data is returned to the position set by the repeat start data REPST, and the start 7 of FIG.
By the processing of 52 to 768, the reproduction of the song data is started again from the returned position.

When the clock timing CLK again reaches the value indicating the bar line position, it is judged "YES" in step 732 of FIG. 26 and the program is advanced to step 734. However, in this case, since the repeat flag REPT is set to "2", it is determined to be "NO" at step 734 and "Y" at step 740.
ES ", and it is determined in step 742 whether the clock timing CLK is equal to the set repeat end data REPEND. If the clock timing CLK is not equal to the repeat end data REPEND, it is determined as "NO" in step 742 and the program proceeds to step 752 in FIG. Is done. On the other hand, if the clock timing CLK is equal to the repeat end data REPEND, it is determined to be "YES" at step 742, and after executing the song pointer return processing at steps 744 to 748, the program is executed as shown in FIG. Since the processing proceeds to step 752, in this case, the reproduction of the song data is performed again from the repeat start position.

When the repeat operator 28g is operated again in the state where the song data in the designated section is repeatedly reproduced in this way, the CPU 50 causes the step of the "repeat routine" shown in FIG. 58
The repeat flag REPT is set to "0" by the processing of 6,590.
Change to. When the repeat flag REPT is changed to "0", even if "YES" is determined in step 732 of FIG. 26, that is, the clock timing CLK indicates the bar line position, both are "NO" in steps 734 and 740. , And the program directly proceeds to step 752 in FIG. 27. As a result, the repeated reproduction of the song data in the designated section, that is, the repeat state is canceled, and the reading of the next song data continues.

On the other hand, in the repeat state described above, the keyboard 10
When a key in the upper key range is operated, the key performance information is processed by the processing of the "recording routine" of FIG. 24 in the "key event routine" of FIG. 23 and the processing of the "playback end routine" of FIG. Are stored in designated storage areas 70A-1 to 70A-8 of the song data memory 70A. However, as mentioned earlier, song data is not repeated when the record mode is insert mode, so editing of this song data while it is repeatedly played back can only be done in rewrite mode and overdubbing mode. Absent. As a result, when the song data is edited in the rewrite mode or the overdubbing mode, the song data in the desired section among the song data stored in the storage areas 70A-1 to 70A of the designated song data memory 70A. While repeatedly playing back, you can edit the same data by rewriting and overdubbing, making it easier to edit song data.

Furthermore, the reproduction of the song data initially written or edited in the song data memory 70A as described above will be briefly described. Also in this case, the operation of the performer and the operation of the apparatus associated therewith are almost the same as in the case of the record mode at the time of editing described above, but in this case, the operation of the record operator 26a causes the step 128, By the processing of 130,
Set the sequencer mode flag SCMD to "1".

Since the sequencer mode flag SCMD set to "1" determines "NO" in step 612 of the "key event routine" of FIG. 23 during the reproduction of the song data, the step is executed. 614
The "recording routine" is not executed, and the key performance data is not stored in the song data memory 70A. Also,
Even when the reproduction of the song data by the sequencer stop operator 28f is stopped, it is determined as "NO" in step 466 of the "reproduction end routine" in FIG.
The subsequent writing process of the song data to the song data memory 70A is not executed. Furthermore, in this case, the storage area 70A-1 of the designated song data memory 70A
At the end of reading the song data stored in ~ 70A-8, it is determined as "YES" at step 758 of the "reproduction routine" of FIGS. Is determined, the sequencer run flag SCRUN is changed to "0" in step 774, and the sequencer is switched from the operating state to the stopped state.

E. Editing Custom Accompaniment Data When editing the custom accompaniment data in the custom accompaniment pattern memory 70B, the performer first sets the custom operator 25b, the up operator 23a, and the down operator 2.
3b is operated to specify the storage areas 70B-1 to 70B-8 in the custom accompaniment pattern memory 70B storing the custom accompaniment data to be edited. By operating these operators 25b, 23a, 23b, as described above, the song custom flag SNGCST is set to "1" and the custom number data CUSTOM is set to a desired value (1 to 8). (See FIGS. 11 and 13) Next,
The performer has the designated storage areas 70B-1 to 70B.
In order to specify the sections 71 to 76 to be edited in B-8, the pattern type operators 29a to 29f are operated. By operating the pattern type operators 29a to 29f, the CPU 50 executes the "accompaniment pattern routine" of step 146 of the "main program" of FIGS. 6 and 7, that is, the "accompaniment pattern routine" of FIG. 17, as described above. .. In this case, the automatic accompaniment run flag AARUN is "0".
At the same time, the song custom flag SNGCST is also "1".
Therefore, in steps 422 and 424, “N
It is determined to be "O" or "YES", and the values of "1" to "6" corresponding to the pattern type operators 29a to 29f operated in step 426 are set as the section number data SECT. Next, in step 428, it is determined whether or not the section number data SECT having the set value exists in the designated storage areas 70B-1 to 70B-8. If the section number data SECT of the set value exists, it is determined as “YES” in step 428, and in step 430, the value of the custom accompaniment pointer is set to the storage area 70B-1 to 70-1 designated by the custom number CUSTOM. 7
0B-8, set to the start address for storing the custom accompaniment pattern such as intro, fill-in 1, fill-in 2, ending, normal, and variation corresponding to the section number data SECT, and set the clock timing CLK to "0". Initialize. If the performer has designated an accompaniment pattern type (section number) that does not exist in the designated storage areas 70B-1 to 70B-8, it is determined as "NO" in step 428. At step 436, the execution of this "accompaniment pattern routine" ends, so that the performer performs the processing in sections 71-71.
It is necessary to specify 76 again.

After designating the custom number data CUSTOM and the section number data SECT, the performer operates the record operating element 26a and the record mode operating element 26b to perform the sequencer operation as in the case of editing the song data described above. The mode flag SCMD is set to "0" indicating the record mode, and the record mode flag RCMD is "0" indicating the insert, "1" indicating the rewrite mode or "2" indicating the overdubbing mode.
Set to. Also in this case, if the repeat flag REPT is set to "1" indicating the repeat mode, the insert is prohibited. (See FIG. 14) Next, the performer
Jump operators 28a to 28d or reset operator 2
By operating 8h, the designated storage areas 70B-1 to 70B- of the custom accompaniment pattern memory 70B are operated.
The reading start position of the sections 71 to 76 of No. 8 is set. In the processing of the "playback position routine" of FIG. 21 associated with the operation of these operators 28a to 28d, 28h, the clock timing CLK, the repeat flag REPT and the repeat start data REPST are the same as those in the case of editing the above song data. The settings are exactly the same. However, in this case, a custom pointer is adopted as the pointer, and the pointer has a storage area 70B of the custom accompaniment pattern memory 70B designated by the custom number data CUSTOM corresponding to the set clock timing CLK.
Section number data SECT within -1 to 70B-8
Are set to the addresses in the sections 71 to 76 designated by.

In such a state, the performer operates the sequencer start operator 28e to instruct the reading of the custom accompaniment data in the custom accompaniment pattern memory 70B, and at the same time, in the lower key area of the keyboard 10, the custom accompaniment data is displayed. Start playing the accompaniment sound for editing. When the sequencer start operator 28e is operated, the CPU 50 executes the "reproduction start routine" of FIG. 18, as in the case of editing the song data described above. in this case,
Since the automatic accompaniment run flag AARUN is set to "0" and the sequencer run flag SCRUN is also initially set to "0", the processes of steps 446 to 456 are executed, and the sequencer run flag SCRUN and the repeat flag REPT are executed. , Repeat start data REPST, insert clock timing INSCLK and insert start data INSST are set to the same values as in the case of editing the above song data.

In this state, when the tempo clock signal from the tempo oscillator 53 is supplied to the CPU 50, C
The PU 50 executes the "interruption program" of FIG. In this case, in order to avoid simultaneous playback of the original accompaniment data and custom accompaniment data, the automatic accompaniment run flag AA
Since RUN is always set to "0", step 70
It is determined to be "NO" in 2, and the automatic accompaniment process of step 704 is not executed. Also in this case, the CPU 50 executes the "playback routine" shown in detail in FIGS. 26 and 27 in step 714 only when the record mode flag RCMD is set to "2" indicating overdubbing.

The respective processes of this "playback routine" are almost the same as the case of editing the song data, but in this case, the song custom flag SNGCUS is set to "1" representing the processing mode of the custom accompaniment data. Therefore, it is determined to be "NO" in step 752, and in step 756, the storage areas 70B-1 to 70B-1 of the custom accompaniment pattern memory 70B designated by the custom number data CUSTOM are stored.
In 70B-8, the custom accompaniment data designated by the custom pointer is read from the sections 71 to 76 designated by the section number data SECT. Then, in step 762, it is determined to be “YES” based on the song custom flag SNGCST set to “1”, and after the pitch conversion processing in step 762, in the custom accompaniment data read out in step 766. The key code and the key-on signal are output to the tone signal forming circuit 40.

However, in this case, the automatic accompaniment run flag AA
RUN is set to "0" indicating the stop state of automatic accompaniment, sequencer run flag SCRUN is set to "1" indicating the operating state of the sequencer, song custom flag SNGCST is set to "1" indicating the custom mode, Moreover, since the sequencer mode flag SCMD is set to "0" indicating the record mode, both are determined to be "NO" in steps 602 and 604 of the "key event routine" in FIG. 23, and the program proceeds to step 610. Be done. Therefore, in this mode, since the chord detection process of step 608 is not executed, the root note data ROOT and the type data TYPE are cleared, and the substantial pitch conversion process corresponding to the detected chord is not executed and read. The issued key code itself is output to the tone signal forming circuit 40, and the circuit 40 outputs an accompaniment tone signal having a pitch corresponding to the key code. The fact that the pitch conversion process is not executed corresponds to the performance of the accompaniment sound related to the reference chord (C major) in the lower key range of the keyboard 10. Therefore,
At the time of this editing, it is necessary to perform an accompaniment sound belonging to the reference chord in the lower key range of the keyboard 10.

On the other hand, when a key is pressed to play the accompaniment tones in the lower key range of the keyboard 10, the CPU 50 as described above.
23 advances the program to the step 610 in the “key event routine” of FIG. 23, controls the pronunciation of the accompaniment sound of the performance in the step 610, and the sequencer run flag SCRUN set to “1” in the step 612. And "0"
Based on the sequencer mode flag SCMD set to No., "YES" is determined and the "recording routine" detailed in FIG. 24 is executed in step 614. In this "recording routine", the record mode RCMD indicates "insert mode" or "rewrite mode", "0" or "
If it is set to "1", the note code, the key code representing the operated key, and the clock timing CLK are stored in the buffer provided in the working memory 52 in step 634 as in the case of editing the song data. Store as custom accompaniment data.

If the record mode flag RCMD is set to "2" indicating overdubbing, step 6
It is determined to be "YES" at 22 and "at step 624"
Based on the song custom flag SNGCST set to 1 ", it is determined to be" NO ", and in steps 630 and 632, the custom accompaniment data as described above is specified by the custom number data SONG. The storage areas 70B-1 to 70B-8W are written additionally to the sections 71 to 76 designated by the section number data SECT. In this case, in step 630, the specified sections 71 to
The custom accompaniment data of 76, which includes timing data showing a value larger than the clock timing value CLK, is sequentially shifted backward by one custom accompaniment data. In step 632, the note code, the key code representing the operated key, and the clock timing CLK are stored as new custom accompaniment data in the storage position vacated by the shift.

When the sequencer stop operator 28f is operated during the reproduction of the custom accompaniment data and the performance of the accompaniment tone in the lower key range, the CPU 50 causes the "reproduction end" of FIG. Routine. In this case, the song custom flag SNGC
Since ST is set to "1", in this routine, if the record mode flag RCMD is set to "0" indicating the insert mode, "Y" is determined in step 468.
It is determined to be “ES”, it is determined to be “NO” in step 470, and the processes of steps 480 to 486 are executed. The processing of these steps 480 to 486 is the same as step 4 described above.
72 to 478. By this process, the written custom accompaniment data in the buffer is stored in the storage areas 70B-1 to 70B of the custom accompaniment pattern memory 70B specified by the custom number data CUSTOM.
Insert start data in sections 71 to 76 specified by section number data SECT that is -8
Inserted at the storage location specified by INSST.

If the record mode flag RCMD is set to "1" indicating the rewrite mode, the "rewrite routine" of FIG. 20 is executed, and based on the judgment of "NO" in step 502, 512-51
Process 8 is executed. These steps 512-51
The process 8 also corresponds to the processes of steps 504 to 510. By this process, the custom accompaniment data written in the buffer is stored in the storage area 70B-1 of the custom accompaniment pattern memory 70B specified by the custom number data CUSTOM. .About.70B-8, and the custom accompaniment data corresponding to the key performance timing in the sections 71 to 76 designated by the section number data SECT is overwritten in the storage position.

Further, even when the record mode flag RCMD is set to "2" indicating overdubbing, as in the case of editing the above song data, when the processing of this "playback end routine" is finished, The custom accompaniment data previously stored in the designated section is overlaid with new custom accompaniment data by key performance.

On the other hand, as described above, even if the sequencer stop operator 28f is not operated, the section code is read from each section 71 to 76 in the storage areas 70B-1 to 70B-8 of the custom accompaniment pattern memory 70B. If so, the operation of the sequencer also stops. That is, by reading out the section code, it is determined to be "YES" in step 758 of FIG. 27, and step 77
Sequencer mode flag set to "0" by 0
It is determined to be "YES" based on the SCMD, and the "reproduction end routine" described above is executed in step 772. As a result, in this case, the storage areas 70B-1 to 70B of the custom accompaniment pattern memory 70B according to each record mode.
The accompaniment data of the key performance is written in -8 as custom accompaniment data, and the operation of the sequencer stops.

Regarding the custom accompaniment data, the custom accompaniment data in the custom accompaniment pattern memory 70b can be repeatedly reproduced in the repeat mode while the accompaniment sound data is used for the key performance. This operation is almost the same as the case of editing the above song data, but in this case, the song custom flag SN
Since GCST is set to "1", it is determined to be "NO" in step 746 of FIG. 26, and the custom pointer that defines the repeat start position is designated by the custom number CUSTOM in step 750. Storage area 70B of customized accompaniment pattern memory 70B
1 to 70B-8, which is set to a storage position corresponding to the clock timing CLK in the sections 71 to 76 designated by the section number data SECT or a storage position immediately thereafter. Therefore, it becomes easy to edit the custom accompaniment data stored in the specified custom accompaniment pattern memory 70B.

Further, the reproduction of the custom accompaniment data stored in the custom accompaniment pattern memory 70B which has been initially written or changed by editing as described above will be briefly described. In this case as well, the operation of the performer and the operation of the apparatus associated therewith are almost the same as in the record mode at the time of editing the custom accompaniment data described above, but in this case also, the step of FIG. The sequencer mode flag SCMD is set to "1" by the processing of 128 and 130.

With the sequencer mode flag SCMD set to "1", during the reproduction of the custom accompaniment data, "YES" is determined in step 604 of the "key event routine" of FIG. If the operation key belongs to the lower key range, a “YES” determination is made in step 606, a chord is detected in step 608, and the root note data ROOT and the type data TYPE by the chord detection are read as described above. The key code in the custom accompaniment data is pitch-converted. Therefore, in this case as well, like the above-mentioned original accompaniment data, an accompaniment sound is generated in accordance with the read custom accompaniment data and the chord name played in the lower keyboard region of the keyboard 10. of course,
In this case, the key performance data is not stored in the custom accompaniment pattern memory 70A as in the case of reproducing the song data.

Furthermore, when the reading of the custom accompaniment data stored in the sections 71 to 76 in the storage areas 70B-1 to 70B-8 of the specified custom accompaniment pattern memory 70B is completed, the "playback routine of FIGS. In step 758, it is determined to be “YES” due to the detection of the section code, and in step 770, “N”
It is determined to be "O", the sequencer run flag SCRUN is changed to "0" in step 774, and the sequencer is switched from the operating state to the stopped state.

[Brief description of drawings]

FIG. 1 is an overall block diagram of an electronic musical instrument incorporating an automatic performance device according to an embodiment of the present invention.

FIG. 2 is a detailed plan view of the operation panel of FIG.

FIG. 3 is a data format diagram of the automatic accompaniment pattern memory of FIG.

FIG. 4 is a data format diagram of a song data memory in the sequencer memory of FIG.

5 is a data format diagram of a custom accompaniment pattern memory in the sequencer memory of FIG.

6 is the first half of the flowchart of the "main program" stored in the program memory of FIG.

FIG. 7 is the latter half of the flowchart of the same “main program”.

8 is a detailed flowchart of the "style routine" of FIG.

9 is a detailed flowchart of the "accompaniment start routine" of FIG.

FIG. 10 is a detailed flowchart of the “accompaniment stop routine” of FIG.

11 is a detailed flowchart of the "increase / decrease routine" of FIG.

FIG. 12 is a detailed flowchart of the “song routine” of FIG.

13 is a detailed flowchart of the "custom routine" of FIG.

FIG. 14 is a detailed flowchart of the “record mode routine” of FIG.

15 is a detailed flowchart of the "copy routine" of FIG.

16 is a detailed flowchart of the "clear routine" of FIG.

FIG. 17 is a detailed flowchart of the “accompaniment pattern routine” of FIG. 7.

FIG. 18 is a detailed flowchart of the “reproduction start routine” of FIG. 7.

FIG. 19 is a detailed flowchart of the “reproduction end routine” of FIG. 7.

20 is a detailed flowchart of the "rewrite routine" of FIG.

FIG. 21 is a detailed flowchart of the “playback position routine” of FIG. 7.

22 is a detailed flowchart of the "repeat routine" of FIG. 7. FIG.

23 is a detailed flowchart of the "key event routine" of FIG. 7. FIG.

FIG. 24 is a detailed flowchart of the “recording routine” of FIG. 23.

FIG. 25 is a flowchart of an “interrupt program” stored in the program memory of FIG.

FIG. 26 is the first half of the detailed flowchart of the “reproduction routine” in FIG. 25.

FIG. 27 is the latter half of the detailed flowchart of the same “reproduction routine”.

[Explanation of symbols]

10 ... Keyboard, 20 ... Operation panel, 21 ... Display,
22a ... style operator, 22b ... start operator, 2
2c ... stop operator, 23a ... up operator, 23b
... Down operator, 25a ... Song operator, 25b ... Custom operator, 26a ... Record operator, 26b ... Record mode operator, 27a ... Copy operator, 27b ... Clear operator, 28a-28d ... Jump operator, 28e ...
Sequencer start operator, 28f ... Sequencer stop operator, 28g ... Repeat operator, 28h ... Reset operator, 29a to 29f ... Pattern type operator, 40 ... Tone signal forming circuit, 50 ... CPU, 51 ... Program memory, 52 ... Working memory, 60 ... Automatic accompaniment pattern memory, 60-1 to 60-n ... Storage area, 61 to 66
Section, 70 ... Sequencer memory, 70A ... Song data memory, 70A-1 to 70A-8 ... Storage area, 70B ... Custom accompaniment pattern memory, 70B-1
-70B-8 ... storage area, 71-76 ... section.

Claims (3)

[Claims] 1. A plurality of sets corresponding to a plurality of rhythm styles, and each set includes a plurality of sections corresponding to a plurality of accompaniment pattern types, and accompaniment pattern data of a predetermined length is stored in advance for each section. An accompaniment pattern memory, a writable user memory having an area capable of storing at least accompaniment pattern data belonging to the one set, a style designating unit for designating a plurality of rhythm styles, and a plurality of accompaniment pattern types Pattern type specifying means, transfer instruction means for instructing transfer of accompaniment pattern data from the accompaniment pattern memory to the user memory, and rhythm specified by the style specifying means in response to the transfer instruction by the transfer instruction means. All sections that belong to the set that corresponds to the style Accompaniment pattern data,
Alternatively, one or a plurality of accompaniment pattern data belonging to a set corresponding to the rhythm style designated by the style designating means and stored in a section designated by the pattern type designating means is stored in the accompaniment pattern memory by the user. Transfer control means for selectively controlling transfer to the memory; edit means for editing the accompaniment pattern data stored in the user memory; and accompaniment pattern data stored in the accompaniment pattern memory and the user memory over time. An automatic performance device comprising: a reading means for reading the data in accordance with the above; and a tone signal forming means for forming and outputting an accompaniment tone signal according to the accompaniment pattern data read by the reading means. 2. A plurality of sets corresponding to a plurality of rhythm styles, and each set includes a plurality of sections corresponding to a plurality of accompaniment pattern types, and accompaniment pattern data of a predetermined length is stored in advance for each section. Specified accompaniment pattern memory, a writable user memory having an area capable of storing accompaniment pattern data belonging to at least one set, style specifying means for specifying a plurality of rhythm styles, and a plurality of accompaniment pattern types Pattern type designating means, transfer instructing means for instructing transfer of accompaniment pattern data from the accompaniment pattern memory to the user memory, and rhythm style designated by the style designating means in response to the transfer instruction by the transfer instructing means And the pattern type finger that belongs to the group corresponding to Transfer control means for controlling transfer of one or a plurality of accompaniment pattern data stored in an arbitrary number of sections designated by the means from the accompaniment pattern memory to the user memory at the same time, and stored in the user memory. Editing means for editing the accompaniment pattern data; reading means for reading the accompaniment pattern data stored in the accompaniment pattern memory and the user memory over time; and accompaniment music according to the accompaniment pattern data read by the reading means. An automatic performance device comprising a tone signal forming means for forming and outputting a tone signal. 3. A writable performance data memory for storing a series of musical sound generation control data for controlling the generation of musical sounds over time, and a series of musical sound generation control data stored in the musical performance data memory for time elapse. Of the tone generation control data stored in the performance data memory, and the reading means for reading the musical tone generation control data read out by the reading means; Section designating means for designating a section in which the musical tone generation control data to be repeatedly read out by is designated, and repeat control means for controlling the reading means to repeatedly read musical tone generation control data in the section designated by the zone designating means. And a series of musical tone generation control data stored in the performance data memory. Automatic performance apparatus characterized by comprising a Edetto means for editing the data.