JPS62187387A - Electronic musical apparatus with automatic performer - Google Patents

Abstract

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

Description

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

Industrial field of application Overview of the invention Conventional technology Problems to be solved by the invention Means for solving the problems Effects of the invention Description of embodiments Explanation of the structure of the electronic musical instrument shown in FIG. 1 Operation explanation 1. Main processing (Fig. 8) 2. Key event processing (Fig. 9) 3. Panel event processing (Fig. 10) 4. ENT switch-on processing (Fig. 11) 5. INC/
DEC switch yft:yWJN (Fig. 11) 6.7GL switch processing (Fig. 15)1. Note length switch-on processing (Fig. 16) 8, chord crest processing (Fig. 17)
9. Memory remaining amount display processing (Fig. 18) 10. PRE switch-on processing (Fig. 19) 11. Preset data writing processing (Fig. 20) 12. Briset exchange processing (Fig. 21) 13 .8EQ switch place! (Fig. 22) 14. Run/stop processing (Fig. 23) 15. Rhythm select processing (Fig. 24) 16. Tempo interrupt processing (Fig. 25) 17. Beat top processing (Fig. 26) 18. Sequencer Reading processing (Fig. 27) 19, Preset reading processing (Fig. 28) 20, Note length changing processing (Fig. 29) Regarding an automatic performance device for an electronic musical instrument that performs automatic performance based on performance data,
In particular, along with musical score data such as pitch and note length, timbre and note m
The present invention also relates to an automatic performance device for an electronic musical instrument that stores panel data such as rhythm type and other data set by operators on the panel, and is capable of individually reproducing both musical score data and panel data.

[Summary of the Invention] The present invention provides an automatic performance of an electronic musical instrument that performs automatic performance while reproducing the settings of each operator on a panel that specifies the manner in which musical sounds are generated based on performance data stored in advance in a memory. By individually specifying the automatic performance sound and the reproduction of the panel state in the device, it is possible to perform a wider variety of performances.

[Conventional Technique #IJ Conventionally, an automatic performance device for an electronic musical instrument that records and reproduces performance operations of a TLL board and a panel operator is known (Japanese Patent Application Laid-open No. 131987/1987).

[Problems to be solved by the invention] However, this device has I! It was not possible to play only the board performance or only the panel performance. In other words, only one type of automatic performance could be performed depending on one performance data.

SUMMARY OF THE INVENTION In view of the above-mentioned problems with the conventional type, an object of the present invention is to provide an automatic performance device for an electronic musical instrument that automatically plays while reproducing the settings of panel operators based on performance data!
! The purpose is to enable the reproduction of the board performance and panel operators to be specified separately.

Means for Solving Problem 1 In order to achieve the above object, in this invention, the performance data is
As in the prior art, means are provided for reading based on the tempo signal and for individually specifying musical tone formation for keyboard performance and reproduction of the panel state.

[Effects of the Invention] Therefore, according to the present invention, it is possible to freely select reproduction of only keyboard performance, only panel operation, or both. As a result, (1) In the chord sequencer mode in which only keyboard performances are played, it is possible to perform with different tones, effects, etc. from those used when recording. Further, by writing only musical score data as performance data and setting panel data at the time of performance, the storage capacity can be reduced.

■In the case of the preset sequencer mode in which only panel operations are played back, it is difficult to change the tone color etc. during a performance, so it is possible to perform the keyboard performance freely while the panel operations proceed automatically.

■When using both playback modes, select a specific part, such as accompaniment I! Both chord accompaniment and panel operations proceed automatically, allowing the performer to concentrate on playing the melody.

[Explanation code for the example] Hereinafter, the present invention will be explained in detail using the drawings.

(Explanation of the overall configuration of the electronic musical instrument shown in FIG. 1) FIG. 1 shows the hardware configuration of an electronic musical instrument according to an embodiment of the present invention. This electronic musical instrument has a central processing unit (C
PLI) 11, an upper keyboard (UK) 13, a lower keyboard (LK) 14, a pedal W keyboard (PK) 15, and a switch group 1 connected to this CPU 11 via a bidirectional path line 12.
6. Program memory 17, pattern memory 18, sequencer memory 19, conversion table memory 20, working memory 21, tempo generator 22, and rhythm codes for upper keyboard sound generation, lower keyboard sound generation, pedal keyboard sound generation It is equipped with tone generators (TG) 23, 24, 25, 26, 27, etc. for sound generation and rhythm sound generation, and has a keyboard performance function as a normal electronic musical instrument.
The accompaniment pattern stored in the pattern memory 18 and the performance data stored in the sequencer memory 19 (
A special function that automatically plays (plays) accompaniment such as rhythmic chords based on sequencer data (accompaniment sound data and panel data representing the setting state of the operation panel, etc.), and a function that automatically plays (plays) accompaniment such as rhythmic chords based on the rhythm pattern in the pattern memory 18. It is equipped with an autorhythm function that automatically plays. Furthermore, it also has a function of recording the performance data in the sequencer memory 19.

In this performance data recording mode, a chord (chord) is recorded using the lower J [114] and the note length switch 3 shown in FIG.
A step write mode in which the note length is written using 7 to 39, and the preset number, which is the number of the panel memory in which the panel data is stored, is written using the preset write switch 36 and preset switches 55 to 70 shown in FIG. And below! A real-time writing mode is provided in which, simply by playing on the board 14, the device automatically detects and records the type of chord played and its note length.

Note that this electronic musical instrument records accompaniment data by chord type (root note and chord type), and compared to conventional electronic musical instruments that record accompaniment data for each constituent note of a chord, it is easier to record accompaniment data for the same accompaniment data. This saves the capacity of the pattern memory 18.

Additionally, a mode is also available in which the accompaniment data and panel data are played back individually.

Furthermore, a sound source (LK-TG24) for forming musical tones by manual performance of the lower keyboard 14 and a sound source (RC-TG26) for forming automatic accompaniment sounds are provided separately.
This allows you to set the tone separately.

In FIG. 1, the CPU 11 is connected to each keyboard 13.
The key information output from the switch group 15 and the switch and operator information from the switch group 16 are taken in, and predetermined musical tone information (start of sound,
23.24.25.2 to generate musical tone information such as sound stop, pitch, timbre, etc.
6.27, etc., and controls the entire operation of this electronic musical instrument.

The switches and operators constituting the switch group 16 are arranged on the operation panel (FIG. 2) of this electronic musical instrument.

FIG. 2 shows the appearance of the operation panel of the electronic musical instrument shown in FIG. In the figure, the multi-menu display 31 is a liquid crystal display (LCD).
CD) Consists of a display that displays the operating mode, etc. Menu changeover switches 32, 33, and 34 and toggle change switch 35 are switches for changing over the operating mode of this electronic musical instrument.

The preset write switch 36 is used in the recording mode to write a preset number in performance data to designate a panel memory (FIG. 6) in which a desired panel state is stored. The note length switches 37, 38, and 39 are used to specify note lengths (1 measure, 1/2 measure, and 1/4 measure) in the step write mode. The tempo display 40 displays the bar number and beat number during performance or step writing. The sequencer switch 41 is used to select whether or not to reproduce the accompaniment and panel status based on the performance data in the pattern memo January 8 (sequencer mode). The run/stop switch 42 plays back the accompaniment and panel state.
Used to start and stop autorhythm performance and real-time looping operations.

This operation panel further includes eight rhythm type selection switches 43 to 50 for automatic rhythm. Switches 51 and 52 for selecting variations and fill-in patterns for each rhythm type, switches 53 for breaking automatic performance during performance, and switches 54 and 16 for fill-in (introducing improvised performance, etc.) Panel data specification Preset switches 55 to 70, a memory switch 11 for storing and using panel data, and the like are provided.

Other operators 80 include a rhythm tone m setter, tone selection switches and tone m setters for each of the above-mentioned keys 13, 14, and 15, a tempo setter for automatic accompaniment/rhythm performance, and an auto bass chord and an albejo chord. , melody on chord, playback sound vibrato, tremolo, sustain setting switches, etc.

FIG. 3 is an operational menu system diagram of the electronic musical instrument shown in FIG. 1. Since the present invention relates to automatic performance mode,
Here, the main classification is sequencer mode (MENU=1
> is shown, but it is also possible to set other modes. Menu changeover switches 32 to 34 in Fig. 2
Each time the ENT switch 31 is pressed, the operation menu of the electronic musical instrument shown in FIG.
=1) to middle classification menu (MENLI-2 or 3)
), from medium classification to small classification (MENU-4 to 9)
), and the classification level changes from small classification to major classification (in the figure, the left side is the higher level). Also, when the ING switch 32 or the DEC switch 33 is pressed, the third
The operation menu changes within the same classification level in the diagram. The state of this switching is stored in the table shown in FIG.

In FIG. 12, the MENU column is the current operation menu, the TBLED column is the operation mode after pressing the ENT switch 34 once, and the TBLING and TBLD
EC indicates the operation menu after switching by pressing the INC switch 32 and DEC switch 33 once.

In FIG. 3, MENU-4 is a play mode change for switching the playback mode one part at a time, and MENU-4 is for turning on and off the automatic accompaniment (food sequencer).
MENU-5 to turn on/off the preset sequencer (setting the panel status according to the performance data), automatic performance (
MENU- to turn on/off repeat mode of sequencer)
6. MEN to turn on/off LK enable, which is a mode that produces the notes played on the lower keyboard 14 in real time.
Consists of U-7. Also, MENU-3 is in recording mode,
MENU-8 is real-time writing mode, MENU-9
is step write mode.

The multi-menu display section 31 in FIG. 2 shows the operation mode after switching and the recording mode (MENU-8 or 9).
), the remaining capacity of the sequencer memory and the types of chords input by pressing keys on the lower keyboard 14 and pedal keyboard 15 are displayed (see each frame in FIG. 3).

Referring to FIG. 1, a program memory 17 is constituted by a single-only memory (ROM), and stores a control program for CP[Jll.

The pattern memory 18 is a ROM that stores accompaniment pattern data and rhythm pattern data. Rhythm patterns are prepared for each rhythm type (number), variation, and fill-in, and accompaniment patterns are prepared for each rhythm type, variation, fill-in, etc., and chord type.

The sequencer memory 19 is a random access memory (R
AM), and the user can write desired performance data using the write mode.

Alternatively, a portion may be constructed from a ROM to provide existing performance data based on manufacturer settings or the like.

This performance data consists of 3 words in 1 word as shown in Figure 4.
Byte-length fractional chord (Code I) data, 2-byte-length normal chord (Code 2) data, 4-byte-length preset data, and each 1-byte-length non-code (rest) data and end mark are combined as appropriate. It is something that

In the chord (Chord 1 and Code 2) data, the first byte represents the chord type. In the chord type data, as shown in the contrast chart in Figure 5, the upper 4 bits are the root (root note).
The lower 4 bits of data are code type data. The root is C, C#.

..., A#, 8 12 tone names respectively data 0-BI
-1 (in hexadecimal notation, hereinafter, rHJ is added to indicate the number in hexadecimal notation), and the chord types are major (M), six (6th), etc., respectively. This corresponds to data 0 to F) 4 (however, FH is a code not established).

The second byte of the code number consists of a 4-bit identification mark CH indicating that the data type is bass note data, and 4-bit data 0 to BH indicating the name of the root note for the bass note. The same root note name data is used for bass notes and chords (accompaniment). Further, FH as root note name data for bass note indicates no base (no bass note is produced).

The third byte of code 1 and the second byte of code 2 are the identification mark Os of note length data and note length data 1 to 3H.
It consists of The note length data is 1H for 1 beat, 2H for 2 beats, and 3
H is 1 measure (4 beats).

The preset data is an identification mark F1H in which the first byte indicates the beginning of the preset data, and the lower 4 in the second byte.
A preset number (corresponding to preset switches 1 to 16) where the bit specifies one of the panel memories 1 to 16 (corresponding to preset switches 1 to 16) provided in the working memory 21. 0 to FHz. The third byte is the rhythm. The fourth byte of the operator setting data is an identification mark F6H indicating the end of the preset data. In the third byte of rhythm controller setting data, the MSB is a blank (unused) bit, and the second and third two bits are mode data (0: normal,
1: fill-in, 2nd break), the fourth and fifth pits are fill-in variation and variation setting flags, respectively, and the 6th to 8th three bits are rhythm number data.

In FIG. 1, the conversion table 20 includes CPU 11
Various tables used when converting data when performing various arithmetic operations, such as the menu switching table shown in FIG. 12 described above, are stored.

The working memory 21 in FIG. 1 is for temporarily storing various data generated when the CPU 11 executes the control program, and is made up of, for example, a random access memory (RAM), and includes a panel memory area, Registers such as various registers, flags, and buffers are provided.

As shown in Figure 6, the panel memory area consists of 33 areas of the same format that store the status of each switch and operator on the operation panel (Figure 2), namely the current panel status buffer CLIRRENT and the normal preset. It consists of memory areas PRENi (i=1 to 16) and sequencer preset PRESi (i-1 to 16). Here, normal (sequencer off)
mode (SEQ-0) and sequencer mode (SEQ-0)
By using different areas PRENi and PRESi when 1>, the panel state when the sequencer is assembled can be reproduced. This is because unless two sets are prepared, the original panel state cannot be reproduced when the preset is rewritten. On the other hand, if you want to change the contents of the preset in the sequencer, press the switch 41 in Figure 2.
All you have to do is turn on the sequencer mode (SEQ=1) and rewrite the preset to the desired one.

The following registers are provided in the working memory 21. In the following, each register is shown by its contents (data, etc.) unless otherwise specified.

RLIN: Run flag Rhythm running state (Ilo) T
CL: Ten Boku O Tsuk O~47 BAR: Number of bars 1~255 BEAT: Number of beats 1~4 CNT: Beat counter for sequencer 1~4 ROOT: Root note 0~11 (C, C#, ・, B) PROOT: Bass Root note for tone 0-11 TYPE: Chord type 0
= F 5M0DE:O Normal 1 Play mode change 2 Real time writing 3 Step writing MENU: Current position 1 to 9 of the multi-menu in Figure 3 FLAGi: i=1 Code sequence 1=2
Preset sequence i = 3 Repeat i = 4 Flags for each mode of enabling lower keyboard performance sounds On (-1) Off (=0) LEN: Sequencer note length data DIH~03H LENGT) -1: Sequencer note length data LEN Lower 4 bits 1 to 3 DT, DEC: Control variable for beat number calculation (1, 2, 4) BR
ANCI-1: Sequencer data attribute symbol LONG
: Whether or not the sequencer code is a fractional code (-1) (=
0) is SEQ: Sequencer on (=1)/off (-〇) CH
DCI-IG: Flag indicating that the code has changed PRECI-IG Flag indicating that the nib reset has changed 5EQPNI-: Sequencer address pointer REM
AIN: Remaining capacity of the sequencer 0 to 200 (x10 bytes) PRENO: Number of the last preset set
0 to 15 (1 to 16 on the switch) RHYNO: Rhythm number O to 7 (1 to 8 on the switch) RHYBIJF: Rhythm information buffer (see Figure 7)
The tempo generator 22 has the same format as the third byte of the preset data in FIG. It consists of a frequency divider and the like, and generates a tempo clock with a period of 1/12 of one beat (quarter note). The cycle of the tempo clock is varied by a tempo setter (not shown) (such as a polyurethane or a switch) arranged on the operation surface.

Tone generator for upper m board generation (UK-TG) 23
forms a melody performance sound signal in response to the operation of the upper keyboard 13. Tone generator for lower keyboard sound generation (LK-T
G) 24 forms an accompaniment sound signal using sustained sounds in response to the performance of the lower t11 board 14. The tone generator (PK-TG) 25 for generating pedal keyboard sounds generates the sound of keys pressed on the pedal G board 15, and the performance data (Chord Seal and Code 2) sequentially read out from the sequence memory 19 at a tempo determined by the tempo clock. A bass sound signal is formed in accordance with the accompaniment patterns sequentially read out from the pattern memory 18. A rhythmic chord generation tone generator (RC-TG) 26 cuts chords specified by the performance data using the accompaniment pattern and forms rhythmic chord sound signals. Tone generator for rhythm sound generation (
RHY-TG) 27 forms a rhythm sound signal according to a rhythm pattern read out sequentially from the pattern memory 18 together with an accompaniment pattern.

The signals formed by each of these tone generators 23 to 27 are supplied to a sound system (not shown), where they are acoustically mixed and output.

This electronic musical instrument includes a tone generator 24° for forming performance sound signals for the lower keyboard 14, and a tone generator 26 for forming automatic accompaniment sound signals.
This allows the accompaniment tones produced by the keyboard and the accompaniment tones produced by automatic performance to be produced simultaneously with independent tones, allowing for a more varied performance.

(Explanation of the operation of the electronic musical instrument shown in FIG. 1) Next, the operation of the electronic musical instrument shown in FIG. 1 will be explained with reference to the flowcharts shown in FIGS. 8 to 11 and 13 to 27.

1. Main Process Referring to FIG. 8, when the electronic musical instrument is powered on, the CPU 11 starts operating according to the control program stored in the program memory 11 (step 100).
. In step 101, the mode register MODE in the working memory 21 is cleared, and the menu number register ME is cleared.
After initializing the entire ¥A location by setting NUE to 1 and displaying the initial menu (for example, MENU=1 in FIG. 3) on the menu display 31, proceed to step 1.
The main routine operations consisting of steps 02 and 103 and steps 110 and 150 are executed.

That is, first, in step 102, the keyboard 13
The outputs of steps 1 to 15 are inspected to determine whether the state of any of the keys changes (key event has occurred).

If there is a key event, the key event processing (step 110) in FIG. 9 is executed and the process proceeds to step 103. If there is no key event, the process branches directly to step 103. In step 103, each switch 31 on the operation panel
~11 and the controls to select one of the switches 31
~71 or it is determined whether the state of the operator has changed (a panel event has occurred).

If there is a panel event, execute the panel event processing (step 150) in FIG.
2, and repeat the above operations starting from step 102. If there is no panel event, the process returns directly to step 102.

2. Key event processing Referring to FIG. 9, in step 111 it is determined whether the key event is caused by the operation of the lower keyboard 14 and the pedal IT board 15. If ``no'', upper WM1
3 has been operated, the key-on or key-off process of the UK-TG 23 is executed according to the event type in step 112, and then the main process (step 10 in FIG. 8) is executed.
Return to 3). Through the process of step 112, melody tones are produced according to the key depression operations (manual play) on the upper keyboard 13.

If it is determined in step 111 that the key event is caused by an operation on either the lower keyboard 14 or the pedal keyboard 15, it is determined in step 113 whether the current operation mode is recording mode or playback mode. . if,
If the mode is recording, proceed to step 114 and press the lower keyboard 1.
The chord type is detected from the key depression state of No. 4, and the root note is stored in the root note register ROOT, and the chord type is stored in the chord type register TYPE. The note being pressed by the Zara-pedal l[15 is stored in the pedal root note register PROOT. In addition,
At this time, if there is no note being pressed on the pedal keyboard 15, the root note data in the register ROOT is stored in the register PROOT (steps iis, 1ie>.Next step 1
17, display the code type on the multi-menu display 31 (see the display example of MENU=9 in FIG. 3), Step 1
18, key on/key off processing of LK-TG24 and PK-TG25, that is, lower keyboard 14 and pedal key 1
Key processing for the key press sound of 1115 is performed.

Furthermore, in step 119, it is determined whether the mode is real-time writing mode or step writing mode. If it is step writing mode, it remains unchanged; if it is real-time writing mode, the code change flag CHDCHG is set in step 120, and then the main processing ( Return to step 103) in FIG.

When the determination in step 113 above is the playback mode,
The sequencer flag SEQ is checked in step 131, and if the sequencer is on (SEQ=1), the food sequence flag FLAG+ is roughly checked in step 132. Then, if 5EQ=O()-Mulbray mode), or even if 5EQ=1, only the preset sequence is on and the chord sequence (automatic accompaniment) is not performed (FLAG = O), Proceeding to step 134, the chord type is detected from the key depression state of the lower keyboard 14, the root note is stored in the root note register ROOT, the chord type is stored in the chord type register TYPE, and the pedal t11 board 1
After storing the note being pressed in step 5 in the pedal root note register PROOT, in step 135 LK/TG24 and PK-
Performs key-on/key-off processing for TG25. That is, accompaniment tones are produced according to the keys pressed on the lower keyboard 14, and bass tones are produced based on the chord type of the lower keyboard 14 and the root note pressed on the pedal tIl board 15.

On the other hand, if 5EQ=1°FLAG+=1 (code sequence on) in steps 131 and 132, the process advances to step 136, where it is checked whether the LK enable mode is on (FLAG4=1), and the L
If the K enable mode is off (FLAG4=0), self-help performance is further run in step 137 (RUN
=1). Then, if the LK enable is on, that is, the mode is in which the sound played by the lower keyboard is produced, or if the automatic performance is stopped even if the LK enable is off, the process proceeds to step 135 and the sound played by the lower keyboard 14 is played. pronounce it. Further, if the LK enable is off and automatic performance is in progress, the process returns to the main process (step 103 in FIG. 8) without performing the sound generation process. That is, in this case, only rhythmic chords are sounded as accompaniment (lower keyboard) sounds.

3. Panel event processing When a panel event is detected in step 103 of FIG. 8, the panel event processing of FIG. 10 is executed. That is, it is determined which switch 31 to 11 or operator 80 was operated in each of steps 151 to 160, and processing is executed according to the operated switch or operator.

4. ENT switch-on processing When the ENT switch 34 is turned on, the process moves from step 151 in FIG. 10 to step 200 in FIG. 11. In step 201, it is checked whether automatic performance is in progress. If automatic performance is in progress, switching the performance mode during automatic performance may have an adverse effect on the performance, so the operation of the ENT switch 34 is ignored as an erroneous operation.

In other words, the main processing (8th
Return to step 102) in the figure.

On the other hand, if automatic performance is not in progress, the contents of the menu number register MENU are changed to the data TBLED of the menu switching table (FIG. 12) in step 202. This table is created so that the operation mode switching described using FIG. 3 is performed, and the original menu MEN
If U is 1, by turning on the ENT switch 34, the new menu is switched to menu 2, which is the value of TBI-ED, and the old menu 2 is switched to 4.3, 8.4 to 9, to 1.

Subsequently, in steps 220 to 229 in FIG. 13, the contents of the sequencer flag SEQ and mode number register MODE are changed according to the contents of the register MENLI.

In other words, in steps 221 to 224, the new menu number M
Check the ENU and this new menu is MENLI=1~3
If so, in step 225, the contents of the register MODE are rewritten to O indicating normal mode, and the flag SEQ is reset (indicating sequencer off). MENU-4～
If it is 7, the register MODE is changed to 1 (play mode change) in step 226, and the flag SEQ is set (sequencer on). If it is MENU-8, the register MODE is rewritten to 2 (real-time write mode) in step 227, and the flag SEQ is set. M.E.
If it is NU-9, the register MODE is rewritten to 3 (step write mode) in step 228, and the flag SEQ is set (sequencer on). If MENU is other than 1 to 9, a value for another mode is set in step 229.

When the rewriting of the register MODE and the setting/resetting of the flag SEQ are completed, the mode/display updating process of step 230 (FIG. 14) is executed.

Referring to FIG. 14, in step 231, a new menu is displayed on the menu display 31. In step 232, M
Check whether ODE=1, that is, the new menu is a play mode change (MENtJ=4 to 7), and if it is any of the play mode changes, step 233, 2
34, the corresponding menu on/off flag FLAG i
The contents (on/off) of (i = MENU-3) are displayed on the menu display 31.

If MODE'=i1 in step 232, the process proceeds to step 235 to check whether MODE=O. If MODE-0 (normal mode), the process directly returns to the main process (step 102 in FIG. 8).

If MODE is neither 0 nor 1, the new menu is in recording mode (MENLI=8 or 9), so clear the sequencer memory address pointer 5EQPNT (step 236) and set the preset change flag PR.
ECHG is set (step 237), and the contents of the panel memory for all preset numbers PRENo are block transferred from normal to preset (step 238) to prepare for recording, and then main processing (Fig. 8) is performed. Return to step 102).

5.1 NC/DEC Switch On Processing When the INC switch 32 or the DEC switch 33 is turned on, the process moves from step 152 in FIG. 10 to step 210 in FIG. 11. In this case, as in the case where the ENT switch 34 is on, switch operations during automatic performance are ignored, and when automatic performance is not in progress, the contents of the menu number register MENLJ are changed to the menu change table (when the INC switch 32 is on). 12), and when the DEC switch 33 is turned on, the data is changed to TBLDEC. Processing steps 221 to 23B after changing this data MENIJ are E
This is exactly the same as when the NT switch 34 is on.

6.7 GL Switch On Processing When the TGL switch 35 is turned on, the process moves from step 153 in the M2O diagram to step 250 in FIG.

In step 251, the operation mode is determined.

Operation mode changes to play mode (MENLJ=4~
7), flag FLAG in Stella 7252-254
After toggling (reversing) the contents (on/off) of i (i = MENU 3) and displaying the new on/off on the menu display 31, the main processing (step 1 in Fig. 8) is performed.
Return to 02).

On the other hand, if the operation mode is not a play mode change,
Since turning on the TGL switch 35 is meaningless or an erroneous operation, the process returns to the main process (step 102 in FIG. 8) without performing any processing.

7. Note length switch-on processing When any of the note length switches 37 to 39 is turned on, the process moves from step 154 in FIG. 10 to step 260 in FIG. 16. In step 261, it is determined whether the operation mode is the step write mode (MODE-3). Since the note length switch is used only in the step write mode, if the step write mode is not present, no processing is performed and the process returns to the main process (step 102 in FIG. 8).

When it is confirmed in step 261 that the operation mode is the step write mode, it is determined in step 262 which note length switch has been turned on, and in step 263 the note length data corresponding to the note length switch turned on is stored in the code. Store it in the long data register LENGTH and write it in the beat count calculation variable register DT.
After storing the control variables in the sequencer memory 19, the code data is written into the sequencer memory 19 by the code write process (factor 17) in step 270, and the code data is written into the sequencer memory 19 by the memory remaining layer display process in step 280 (FIG. 18). remaining memory capacity] is displayed on the menu display 31, and the process proceeds to step 266. In step 266, the beat counter BE
The control variable DT is added to the contents of AT. Ste.

The knob 267 determines whether this beat number BEAT exceeds 4 beats (1 measure). If it does not exceed 1 measure, leave it as is; if it does, change the number of beats to 4 from BEAT in step 268.
After subtracting the number of bars and incrementing the bar counter BAR, in step 269 these new number of bars and number of beats are displayed on the menu display 31 and the main processing (step 1 in FIG. 8) is performed.
Return to 02).

8. Code writing process Referring to FIG. 17, in step 271, the code type TYP detected in step 114 of the above-mentioned key event process (FIG. 9) and stored in the code type register is read.
Inspect E. Code is established (TYPE'qF+)
If so, in step 272, the content ROOT of the root note register is stored in the upper 4 bits of the address specified by the pointer 5EQPNT in the sequencer memory 19 (the first byte of code 1 or code 2 in FIG. 3), and the lower 4 Bit code type TYPE! @Kikkomi. In step 273, pointer 5EQPNT is incremented. This specifies the next 8-in position (second byte). Step 214 Compare the TE root fROOT and the base i[fPROOT. If it is different, the data being written is a fractional chord (code 1 in Figure 3), so the upper 4 bits are the fractional chord identification mark CH and the lower 4 bits are the base tone root note PR00T as the second byte data. Write some 8-bit data (step 275), and then write pointer 5EQPN.
T is incremented (step 276), and as the third byte, 8-bit data in which the upper 4 bits are the note length identification mark DH and the lower 4 bits are the note length data LENGTI-1 is written (m).
step 217). In the following step 278, the pointer 5
EQPN is incremented and set to the beginning of the next word, and then the main process (step 102 in FIG. 8) is executed.

On the other hand, the comparison result in step 274 is ROOT=PROO
If it is T, the data being written is a normal chord (code 2 in Figure 3), so steps 215 and 276 are skipped, and step 271 writes the above DH in the second byte.
Write the data of εNGTH, and then perform step 2
After incrementing the pointer 5EQPNT and setting it to the beginning of the next word in step 78, the main processing (step 102 in FIG.
).

The inspection result of step 271 is code failure (TYPE=
F+), the data being written is rest data (no code in Figure 3), so steps 272 to 276 are skipped and the note length mark DH and note length are written in the first byte in step 277. After writing the data LENGTH, the pointer 5EQPNT is incremented in step 278, and then the process returns to the main process (step 102 in FIG. 8).

9. Memory Remaining Amount Display Process Referring to FIG. 18, in step 281, the integer part of the value obtained by dividing the contents of the address pointer 5EQPNT by 10 is calculated, and the value obtained by subtracting this integer from 200 is set as the memory remaining amount register REMAIN. Store in.

This is here 2000 as sequencer memory 19.
This is because a byte of memory is used and the remaining memory a is approximately displayed in units of 10 bytes. and step 282
In step 283, it is determined whether the remaining memory mREMARN has reached O or not, and if it is not 0, the remaining memory is displayed on the menu display 31 in step 283, and then the process returns to the main process (step 102 in FIG. 8).

When the remaining memory ω becomes 0, the mode number register MODE is cleared in step 284, the menu number register MENLI is set to 1, and the run flag RtJN is reset. After displaying the remaining ff10, the process returns to the main process.

10. PRE switch-on processing When the preset write (PRE) switch 36 is turned on, the process moves from step 155 in FIG. 10 to step 300 in FIG. 19. In step 301, it is determined whether the operation mode is the step write mode (MODE=3). Since the PRE switch 36 is used only in the step write mode, if it is not the step write mode, no processing is performed and the process returns to the main process (steps 1-2 in FIG. 8).

When it is confirmed in step 301 that the operation mode is the step write mode, the preset data write process (Fig. 20) in step 310 is executed, and the above-mentioned remaining memory capacity display process (Fig. 18) is executed. After execution, the process returns to the main process (step 1o2 in FIG. 8).

11. Preset data writing process Referring to FIG. 20, in step 311, the address designated by the pointer 5EQPNT in the sequencer memory 19 (the first byte of the preset in FIG. 3) is written 8 indicating the start of preset data. The identification mark F1H of the bit is aged. Then, while incrementing the pointer 5EQPNT sequentially in steps 312, 314, and 316, step 313
In step 315, the preset number PRENO is written in the second byte, and the rhythm buffer RHYBL is written in the third byte in step 315.
In step 317, an 8-bit identification mark F6+ indicating the end of the preset data is written in the fourth byte of the IF contents. Furthermore, in step 318, the pointer 5EQPN
After incrementing T and setting it to the start address of the next word, the process returns to the main process (step 102 in FIG. 8).

12. Preset Exchange Processing When any of the preset switches 55 to 70 is turned on, the process moves from step 156 in FIG. 10 to step 330 in FIG. 21. In step 331, the number (1 to 16) of the switch turned on is stored in the preset number register PRENO. Further, in step 332, the number is stored in counter i, and in step 333, the flag SE
Inspect Q. This is because areas PRENi and PRESi of the panel memory (FIG. 6) are used differently in the normal mode (SEQ=O) and in the sequencer mode (SEQ=1)R.

That is, if 5EQ=1, the process advances to step 334 and checks whether the memory switch 71 is turned on. If the memory switch 11 is turned on, it is the panel state storage mode, so in step 335, the current panel state, which is the contents of the memory area CURRENT, is block transferred to the memory area PRESi. If the switch 71 is not turned on, it is the panel status setting mode, so in step 336 the contents of the area PRESi are transferred to the area CUR.
The block is transferred to REN, and in step 33γ each switch and operator is set according to the contents of area CURRENT.

If the test result in step 333 is 5EQ=O, in steps 344 to 347, memory area PRESi
Exactly the same processing as in steps 334 to 337 above is performed, except that PRENi is used instead of .

After completing the processing in steps 335, 337, 345, or 347, it is then determined in step 348 whether the current operation mode is real-time write mode<MODE=2). If the real-time write mode is selected, the preset change flag PRE is set in step 349.
After cent CHG, otherwise step 349
The process returns to the main process (step 102 in FIG. 8) without going through.

13.3 EQ Switch On Processing When the sequencer (SEQ) switch 41 is turned on, the process moves from step 157 in FIG. 10 to step 360 in FIG. 22. In step 361, the operation mode is determined. And the operation mode is other than normal mode (MO
DE', O), no processing is performed; on the other hand, in normal mode (MODE=O), after toggling (inverting) the contents of the sequencer flag SEQ (on/off) in step 362, the main processing (8th Figure step 102
).

14. Run/Stop Processing When the run/stop switch 42 is turned on, the process proceeds from step 158 in FIG. 10 to step 370 in FIG.
Move to. In step 371, the operation mode is determined. If the operation mode is other than a real-time running mode such as normal operation* (MODE-0) or real-time writing (MODE-2), no processing is performed and the process returns to the main processing (step 102 in FIG. 8).

On the other hand, if the operation mode is real-time driving mode,
In step 372, the content (on/off) of the run flag RUN is toggled (inverted), and after this inversion, the 7 lag R
Inspect UN. Running of rhythm etc. stops (RUN=O)
If it is, the process returns to the main process (step 102 in Figure 8). If the run has started (RUN-1>), the process proceeds to step 374, where the tempo clock counter TCL is reset, and the bar counter BAR and the number of beats are After setting the counter BEAT and the sequencer beat counter CNT to 1, the process returns to the main process (step 102 in FIG. 8).

15. Rhythm Select Processing When any of the rhythm select switches 43 to 54 is turned on, the process moves from step 159 in FIG. 10 to step 380 in FIG. 24. In step 381, it is determined whether the current operation mode is the real-time write mode (MODE-2), and if it is the real-time write mode, the preset change flag PREC)-IG is determined in step 382.
If not, proceed directly from step 381 to step 383.

In step 383 and subsequent steps, the type of switch that is turned on is checked, and the rhythm information buffer RHYB is set according to the check result.
Data in tJF (Figure 7) is rewritten.

That is, when the rhythm select switches 43 to 50 are turned on, the process proceeds from step 383 to step 384, where the selected rhythm number is stored in the register RHYNo, and in the subsequent step 385, the lower 3 of the buffer RHY8UF is stored.
After rewriting only the bits to the new rhythm number RHYNO, the process returns to the main process (step 102 in FIG. 8).

When the variation setting switch 51 is turned on, the process advances from step 387 to step 388 and the fifth bit 110 from the top of the rhythm information buffer R)-IYBUF is read.
After inverting, the process returns to the main process (step 102 in FIG. 8).

When the fill-in variation setting switch 52 is turned on, the process proceeds from step 390 to step 391, inverts the fourth bit Ilo from the top of the rhythm information buffer RHYBLIF, and then starts the main process (step 1 in FIG. 8).
Return to 02).

When the fill-in switch 54 is turned on, step 39
Proceed from step 3 to step 394 and rhythm information buffer? R.H.
After rewriting only the data of the top three pits of Y8LIF to 0O1e (binary representation) indicating fill-in, the process returns to the main process (step 102 in FIG. 8).

When the break switch 53 is turned on, step 393
Proceed to step 395 and save the rhythm information buffer RHY.
After changing only the data of the top three pits of B tJ F to 010ek:I indicating a break, the process returns to the main process (step 102 in FIG. 8).

16. Tempo interrupt processing In the electronic musical instrument shown in FIG. 1, the following interrupt processing (
Step 500) is executed. In FIG. 25, in step 501, the run flag RLIN is checked. If RUN=0, the rhythm is currently stopped (therefore, automatic accompaniment and all-time writing of accompaniment data are also stopped), so the interrupt is canceled and the original routine is returned to.

On the other hand, as a result of the check in step 501, if RUN = 1, that is, if the rhythm is currently running, the process proceeds to step 502, where the tone generator for rhythm sound generation (RHY. TG) 27 is driven. In other words, rhythm sound generation processing is performed.

In the following step 503, the count value of the tempo clock is set to CL.
It is checked whether the ``remainder'' obtained by dividing the value by 12 is O. If the 'remainder' is 0, the process proceeds to step 504. Since the period of the tempo clock is 1/12 of one beat, if the 'remainder' is 0, the current timing is at the beginning of one beat (beat top). In this case, step 600 (Figure 26)
After performing the beat top processing, the next step 504
Proceed to.

In step 504, the operation mode is checked, and if it is normal mode (MODE-0), the flag SEQ is checked in step 505. Then, sequencer on (SEQ-
1), the code type TYPE is checked in step 506, if the code is established (TYPE"iF+), 7 lag FLAG+ is checked in step 501, and if the food sequence is on (FLAG+-1), then in step 508 Check flag FLAG4.

If the LK enable is on (FLAG4 = 1), that is, in normal mode, sequencer on, code established, code sequencer on, and LK enable is on, the code type TY is set in step 509.
The sound generation of LK/TG 24 is controlled based on PE and root note ROOT, and in step 510, the tempo clock counter TCL, root note ROOT, PROOT, and rhythm information buffer? Based on the data RHYBUF of PK-TG
25 and RC-TG 26. In other words, in this case, LK-TG24 produces the accompaniment (chord) tones according to the keys pressed by LK14, and PK-TG25 and RC-T
P stored in the sequencer memory 19 by G26
s Produces auto bass tones and rhythmic chord tones according to performance data.

In the following step 511, the tempo clock counter TCL
is incremented, and in step 512 it is determined whether the count value of the counter TCL is an integral multiple of 12 or not.

If it is an integer multiple, it means that the next beat has come to the beginning, so the beat number counter BEAT is incremented in step 513. If it is not an integral multiple, the process of step 513 is skipped and the process proceeds to step 514. In step 514, it is determined whether the count value of counter TCL is smaller than 48 or not. 4
If it is less than 8, the interrupt is canceled and the original routine returns. On the other hand, the counter CL total j! I 1m is 4
If it is 8 or more, the current measure has ended, so the counter TCL is cleared in step 515, and the beat counter B is
EAI is set to 1 and bar counter BAR is incremented. Furthermore, in step 516, the rhythm information buffer RHYB is
After clearing the second and third bits from the top of the LIF (FIG. 7) and setting the rhythm mode to normal, the interrupt is canceled and the original routine returns.

Note that in steps 504 to 508 described above, if the operation mode is not the normal mode (MODE'-tO), the sequencer is turned off (SEQ-tO) even in the normal mode.
0), and LK enable off (FLAG4-
0), the process of step 509 is not performed. That is, in this case, the manual performance sound of the one-keyboard is not produced, but the auto bass sound and the rhythmic chord sound are produced. Further, both steps 509 and 510 are skipped if the code is not established (TYPE=F+) or if the food sequencer is off (FLAGr-0).

In other words, none of the manual a-hat tone, auto bass tone, or rhythmic chord convex of the one-keyboard is produced.

17. Beat top processing In step 503 of FIG. 25, when the count value of the tempo clock counter TCL is an integral multiple of 12, that is, at the first tempo interruption of one beat, the following beat top processing is executed.

Referring to FIG. 26, in step 601, the bar number BAR
and the number of beats BEAT are displayed on the tempo display 40. The next step 602 is to check the operating mode. here,
The current operation mode is normal mode (MODE=O)
If so, the flag SEQ is checked in the following step 603. Since this beat top processing is performed by the sequencer, if the sequencer is off (SEQ=O), nothing is done, the tempo interruption is canceled, and the process returns to the original routine.

If it is 5EQ-1 in step 603, the sequencer counter CNT is decremented in step 604, and then it is determined in step 605 whether the count value CNT has become O. If not, cancel the tempo interrupt and return to the original routine; if 0, step 62
0 sequencer read processing (FIG. 27) is executed. This sequencer reading process will be described later.

If the test result in step 602 is in a mode other than normal mode (MO
If DE'qO)t-atL, the program proceeds to step 611 in step 602. This beat top processing beam is in the form B (see step 501 in FIG. 25), that is, MODE-
Since it is performed only in the case of 0 or 2, M
If it is not ODE-0, it is MODE-2 (real-time writing). In step 611, the sequencer counter C
NT is incremented, and in step 612 the flag PRECHG is set.
Inspect. Flag PRECI-IG is set when the operation mode is changed to real-time writing (MODE-2>) (14th
Figure step 237), preset switch 55-1
0 (step 349 in Section 21) and when the rhythm select switch is operated during real-time writing (step 382 in FIG. 24). PRECH
If G-1, proceed to step 613 and PRECHG-
If it is 0, the process advances to step 614.

Step 613 r: is sequencer pointer 5EQPN
Determine whether T is cleared. SEQP
If N T't O, the note length changing process of step 100 (FIG. 29) is executed, and after the above-mentioned preset writing process (step 310 of FIG. 20) is executed, the process proceeds to step 617. On the other hand, if it is 5EQPNT-0, the process of step 700 is skipped, the preset write process is executed immediately, and the process proceeds to step 617.

In step 614, the chord change flag CHDCHG is set.
Inspect. This flag is set when the chord type is changed depending on the key depression state of the lower keyboard 14 or pedal keyboard 15 (9th
Figure step 120) is set.

If CHDCHG-0, cancel this tempo interruption and return to the original routine; if CHDCI-IG-1, execute step 100 note length change processing (Fig. 29) and then proceed to step 617. .

After storing 1 in the note length register LENGTH in step 617, the above-mentioned code writing process (Figure 17) and inter-meeting column display process (Figure 18) are executed, and in step 619, the sequencer counter CNT is , preset change flag PRECHG and chord change flag C
After clearing I-IDcHG, this tempo interrupt is canceled and the process returns to the original routine.

18. Sequencer readout process In normal mode, when the beat top is reached during rhythm running in the sequencer on state, the beat top process is performed, and when the sequencer counter CNT becomes O during this beat top process, this sequencer readout process is executed. do.

Referring to FIG. 27, in step 621, the upper four pits of the data [5EQPNT] in the sequencer memory 19 indicated by the sequencer pointer 5EQPNT are transferred to the register B.
Store in RANCH. Next, in step 622, it is determined whether this 4-bit data BRANCH is root note (0 to BH) data.

If 7'-9BRANCH is Il&(0~B+>7-, data [5EQPNT] is code type data, so in step 623, the upper 4 bits are stored in the mR register ROoT, and in step 624, the lower 4 bits are stored in the code type register. Store in TYPE.Further step 62
5, the pointer 5EQPNT is incremented, and in step 626, it is determined whether the next data [5EQPNT] is CH. If it is not CH, this data is usually the second byte of the chord data (code 2 in Figure 3), so the root note RO
After storing OT in the base tone root note register PROOT (step 621), the process proceeds to step 650. On the other hand, CH
If so, this data is the second byte of the fractional chord data (code entry in Figure 3), so store the lower 4 bits of this data in the register PROOT (step 628).
) Then, in step 629, the pointer 5EQPNT is further incremented, and then the process proceeds to step 650.

At step 622, the data BRANCH is set to the root note (O~BH).
), the process advances to step 640, where the data BRANCH is marked with note length identification mark (D) 4.
). Step 64 if DH
After data FH (code not established, no sound produced) is stored in the code type register TYPE at step 1, the process proceeds to step 650.

In step 650, the note length data stored in the second byte of normal chords, the third byte of fractional chords, and the lower 4 bits of rest data (1-byte data) is inspected.
In step 651, beat number data corresponding to the note length data is stored in the sequencer faith counter CNT. Subsequently, in step 652, the pointer 5EQPNT is roughly incremented and set to the start address of the next word, and then the tempo interrupt is canceled and the process returns to the original routine.

As a result of the determination in step 622 and step 640,
If the data BRANCH is neither a root note (0 to BH) nor a note length identification mark (D+), the process advances to step 660 and this time the 8-digit data [5EQ
PNT] is FFH (end mark), and if it is not FFH, roughly Fl)4 in step 661.
(preset start mark).

If the data [5EQPNT] is FFH (end mark), the process advances from step 660 to step 662 and the FLA
Inspect G3. If FLAG3-1 (repeat on), the pointer 5EQPNT is cleared in step 663, and then the process returns to step 621 to repeat reading from the data at the first address of the memory 19 again. Also, step 6
When it is determined in step 62 that FLAG3-90 (repeat off), the run flag RUN is reset in step 664, and then the tempo interruption is canceled and the process returns to the original routine.

If the data [5EQPNT] is FlH (preset data start mark), steps 661 to 662
Proceed to and inspect FLAG2. If FLAG2=1 (preset sequence on), after executing the preset reading process of step 670 (FIG. 28), FLAG2
If =O (preset sequence off), there is no need to read this 4-byte preset data, so in step 667, the pointer 5EQPNT is advanced by 4 (empty feed), and then the process returns to step 621 to read the next data from memory 19. Read word data.

Note that the data BRANCH is neither a root note (0 to BH) nor a note length identification mark (D+), and the data [5EQP
NT] is neither FF14 nor FIH, step 6
After predetermined processing such as error display or data interpolation is performed in step 68, the process returns to step 621 and the next data is read from the memory 19.

19. Preset reading process When it is determined in step 665 that the preset sequence is on (FLAG2-1), this preset reading process is executed.

Referring to FIG. 28, in step 671, the
After storing the next data of the address in the sequencer memory 19 specified by QPNT, that is, the second byte data [5EQPNT+1] of the preset data, in the preset number register PRENO, execute the aforementioned preset exchange process (Fig. 21). do. Next, in step 674, the third byte of the preset data [5EQPNT+2] is stored in the rhythm information buffer RHY.
BUF (FIG. 7), and in step 677, the pointer 5EQPNT is advanced by four and set to the start address of the next word, and then the tempo interrupt is canceled and the process returns to the original routine.

20. When the sequencer f reset switches 55 to 70 are operated in the beat top processing (FIG. 26) during note length change processing real-time writing (MODE=2) (step 613
), and the key! 14. When the chord being input changes according to step 615 (step 614), this note length changing process is executed. During real-time writing, the note length of the previous chord can only be determined after a chord change is detected.
If you press one chord and then release the key, the chord type will be written when the key is pressed and the note length will be written when the key is released.

Referring to FIG. 29, in steps 701 to 703, the count value of the sequencer counter CNT is checked.

Then, if the count value CNT is 4 or more, step 705
The note length data D3+ is stored in the register LEN, and the register DE
After storing the control variable 4 in C, the process advances to step 708.

Further, if 2≦CNT<4, in step 701 the code length data 021 in the register LEN and the control variable 2 in the register DEC are stored, and then the process proceeds to step 708.

In step 708, the note length data part [
5EQPNT-1] is the note length data (
D3H or D2H).

In step 709, it is determined whether the previous chord was a fractional chord. Since the chord data is 2 (normal chord) or 3 (fractional chord) bytes, the code type of the previous chord data is the 3 previous data if it is a fractional chord [5EQPNT-3
], and if it is not a fractional chord, the two previous data [5EQ
It is PNT-21.

In steps 710, 711 and 720, the chord type data of the immediately preceding chord [5EQPNT-3 (or 2)]
(And if it is a fractional chord, the base note root note data [5E
QPNT-21) as the data of the chord currently being pressed [
5EQPNT] (and if it is a fractional chord, it is stored (copied) as base tone root tone data [5EQPNT+11). In steps 712 and 722, DlH is stored as the note length data [5EQPNT+1] of the chord currently being pressed ([5EQPNT+2] if it is a fractional chord) (temporary entry: it will be rewritten the next time step 106 is executed) . Then, in steps 713 and 723, the pointer 5EQPNT is advanced by 2 (normal chord) or 3 (fractional chord) and set to the start address of the next chord data.
In step 714, the fractional chord flag LONG is set, and in step 724, LONG is reset. In step 726, the counter CNT is counted down by the control variable DEC, and the process returns to step 701.

If the count value CNT of the sequencer counter is smaller than 1 in steps 701 to 703, step 7
Proceed from step 03 to step 730 and set pointer 5EQPNT.
Step 730 to return ? to the first address of the previous chord data? 32), after setting the end mark FF)I here (step 733), the tempo interruption is canceled and the process returns to the original routine.

Also, in steps 701 to 703 above, J3 and 1≦CN
If T<2, the current address S E Q l) N
The end mark FF+-+ was predicted on T (step 7
After 33), this tempo interruption is canceled and the original routine returns.

In this electronic musical instrument, automatic accompaniment is based on chords such as rhythmic chords, and the first accompaniment is controlled by timing.
While it is played with a tone, it is possible to play a second tone based on the key operation of the pressed key.
You can perform with a lot of variety. Furthermore, by switching modes, it is possible to perform automatic performance in addition to real-time performance as in the past.

The 30th factor shows a pattern (a) and an operating procedure (b) for step writing in the electronic musical instrument shown in FIG. The preset number can be set by turning on the PRE switch 36 after specifying the preset number using the preset switches 55 to 10. A chord can be set by specifying the chord type by pressing keys on the lower keyboard 14 and the pedal keyboard 15, and then specifying the note length using the note length switches 37-39. Also, for rests without chords, you only need to input the note length data without inputting the chord type. Lower wI5! The type of chord input from it can be specified by pressing all the keys that make up the chord (so-called fingered mode), but you can specify only the root note (major) or the root note and other white keys or black keys. It is also possible to specify a combination of (so-called single finger mode).

[Modifications of Embodiments] The above are embodiments of the present invention, but the present invention is not limited to the above-described embodiments and can be implemented with appropriate modifications. For example, (2) in the above description, the normal playback is rhythmic chords, but other types of accompaniment may be played, or it may be possible to switch to a mode in which the accompaniment tone and the pressed key tone are the same. Also, various other combinations are possible.

(2) Progress may be controlled by storing musical symbols such as repetition (D, S, , &, *, etc.) in the sequencer.

■The time signature is not limited to 4 time signatures, but may be other time signatures. In that case, the note length (1, 1/2, 1/4 measures) may not be an integer number of beats, but it is sufficient to round it up to an integer number of beats.

■Although we have given an example of rhythmic chords as automatic accompaniment, it is also possible to use dispersed chords such as arpeggios, including double notes.

■The resolution of the sequencer may be set to a finer unit of beats or less.

■Although only one sequencer is shown here, it is easy to provide multiple sequencers.

■Although only the sequencer has been mentioned as the content of the multi-menu, it is easy to add other modes such as creating rhythm patterns and changing timbres.

■It is also easy to make the sequencer editable.

(2) In the above embodiment, two blocks are provided as the panel memory, one for normal and one for preset, but it is also possible to reduce the memory capacity by making these into one block.

[Brief explanation of drawings]

FIG. 1 is a hardware configuration diagram of an electronic musical instrument according to an embodiment of the present invention, FIG. 2 is an external view of the operation panel, FIG. 3 is an operation menu system and display diagram, and FIG.
Sequencer data format diagram, Figure 5 is a comparison diagram of chord type versus note name data and chord type data, Figure 6 is a panel memory format diagram, Figure 7 is a rhythm information buffer format diagram, and Figure 8 is a main 9 is a flowchart of key event processing; FIG. 10 is a flowchart of panel event processing; FIG. 11 is a flowchart of menu switching processing;
Figure 2 is a table diagram for menu switching, Figure 13 is a flowchart of mode change processing, Figure 14 is a flowchart of mode/display update processing, Figure 15 is a flowchart of toggle switch on processing, and Figure 16 is a flowchart of mode change processing. , a flowchart of note length switch-on processing, FIG. 17 is a flowchart of code writing processing, and FIG. 18 is a flowchart of code writing processing.
19 is a flowchart of the preset write switch-on process, FIG. 20 is a flowchart of the preset write process, and FIG. 21 is a 70-chart of the 1 memory remaining display process. Flowcharts: FIG. 22 is a flowchart of sequencer switch-on processing; FIG. 23 is a flowchart of run/stop processing; FIG. 24 is a flowchart of rhythm select processing; FIG. 25 is a flowchart of tempo interrupt processing; 26
27 is a flowchart of sequencer readout processing, FIG. 28 is a flowchart of preset readout processing, FIG. 29 is a flowchart of note length change processing, and FIG. 30 is a flowchart of performance data. A diagram showing an example of (a) and an operation sequence diagram (b) when step writing this performance data. 11...CPU, 13.14.15...-JR board,
16... Switch group, 17... Program memory,
18... Pattern memory, 20... Conversion table memory, 21... Working memory, 23, 24.25
．． 26.27...Tone generator. Figure 6 PRESI Meb16 RET Figure 21 Figure 24 Sequence 1 Sui, + Onme and Support Figure 22 Er Figure 23 Bill + 1lr E (self-motivated) March 10, 1986

Claims (1)

[Claims] 1. A performance data memory that stores musical score data representing the state of keyboard performance and panel data representing the setting state of each operator on the panel that specifies the manner in which musical sounds are generated; and a performance tempo. tempo signal generating means for generating a tempo signal as the basis of the tempo signal; data reading means for sequentially reading out the musical score data and panel data from the performance data memory based on the tempo signal; and generating musical tones based on the read musical score data. a musical tone forming means for forming a musical tone; a means for reproducing a setting state of the on-panel controls based on the read panel data; and a means for individually forming the musical tone and reproducing the setting state of the on-panel controls. 1. An automatic performance device for an electronic musical instrument, characterized in that it is equipped with a means for inhibiting and inhibiting.