JP2681146B2 - Electronic musical instrument automatic performance device and automatic performance method - Google Patents

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 and method for an electronic musical instrument, and more particularly to automatic setting of musical conditions for automatic performance.

[0002]

Conventionally, there is an automatic musical instrument playing device for an electronic musical instrument which automatically performs a musical performance based on stored automatic musical performance information. In such an automatic performance device, a floppy disk storing a plurality of pieces of automatic performance information is attached to an electronic musical instrument, a music number to be automatically played is input, and an instruction to start the automatic performance is given.

However, in order to perform the automatic performance, it is necessary to input a music number and an instruction to start the automatic performance each time the automatic performance is started, which is a troublesome operation procedure. This is not limited to the automatic start of the automatic performance, and the same applies to the setting of the musical effect of the automatic performance or the conditions for sounding each musical tone of the automatic performance. In particular, it is very convenient if the automatic performance automatically starts when a floppy disk or the like is attached.
In addition, performing such an operation for automatic performance is
It was also inconvenient when exhibiting an automatic performance device and performing a demo performance.

Further, if the above-mentioned music number input and an automatic performance start instruction are given to perform an automatic performance, even if the floppy disk storing the automatic performance information is replaced with another floppy disk, the same music number will be obtained. Is played. That is, the automatic performance content once set is not fixed and flexible. Therefore, when the floppy disk was replaced with another floppy disk, it was not possible to perform the automatic performance matching the automatic performance information stored in this floppy disk.

The present invention has been made to solve the above-mentioned problems, and an automatic performance of an electronic musical instrument capable of individually and automatically setting a musical condition of an automatic performance suitable for each stored automatic performance information. The purpose is to provide a device.

[0006]

In order to achieve the above-mentioned object, the present invention provides automatic musical performance information for automatically starting automatic musical performance as well as musical condition information such as music in recording / reproducing of musical performance information. The contents of selection, chain play, repeat, and quantize are stored in storage means that is detachable from the automatic performance device. Then, in response to a specific operation, for example, power-on or mounting of a floppy disk, information on the musical condition is read from the storage means, the musical condition is set according to this information, and the automatic performance information is set to the above. The output is based on the musical conditions. As a result, upon automatic performance, it is possible to automatically set the musical conditions for automatic performance.

[0007]

[Examples] 1. Overall Circuit FIG. 1 shows the overall circuit of an electronic musical instrument. Keyboard 1
Are scanned by the keyboard scan circuit 2, and data indicating key-on and key-off are detected.
The data is written into the RAM 6 by the CPU 5. Then, the data is compared with data indicating the ON / OFF state of each key stored in the RAM 6 until then, and the ON event of each key,
The determination of the off event is performed by the CPU 5. The keyboard 1 may be replaced with an electronic stringed instrument, an electronic wind instrument, an electronic percussion instrument, a computer keyboard, or the like.

Each key of the panel switch group 3 is scanned by a panel scan circuit 4. By this scan, data indicating on / off of each key is detected,
The data is written into the RAM 6 by the CPU 5. Then, the data is compared with data indicating the ON / OFF state of each key stored in the RAM 6 until then, and the ON event of each key,
The determination of the off event is performed by the CPU 5. The panel switch group 3 also inputs the chain play data CP, etc., which indicates the reproduction music number and the number of times of reproduction of the automatic performance, which will be described later.

The data input from the panel switch group 3 and various stored data in the RAM 6 are displayed on the LCD 22 via the LCD (liquid crystal display) driver 21.
The panel switch group 3 also includes a mounting determination switch 8 for determining whether the floppy disk 14 is mounted or not mounted.

The sequence RAM 17 stores the automatic performance data AP for one tune for each track, and when writing (recording) or reading (reproducing) the automatic performance data AP, write address data WAD / read address data RAD is used. It is stored in the address counter 16,
It is sent to the sequence RAM 17. Sequence RAM1
The automatic performance data AP written in 7 is loaded from the floppy disk 14 and also input from the keyboard 1 or the panel switch group 3. Sequence RA
The automatic performance data AP read from M17 is sent to the tone generator 19 to generate a musical tone signal, which is sounded through the sound system 20. The address counter 16 may be formed in the RAM 6.

The floppy disk 14 also stores a plurality of automatic performance data AP, which are written and read by the floppy disk driver 15.
The automatic performance data AP read from the floppy disk 14 is loaded into the sequence RAM 17 and the automatic performance is performed. Further, the automatic performance data AP of the sequence RAM 17 may be saved on the floppy disk 14. The floppy disk 14 also stores a chain play data CP indicating a reproduction music number, a reproduction measure, a number of times of reproduction, etc. of an automatic performance described later.

In the RAM 6, in addition to the above-mentioned data, reproduction condition data RC, that is, protect data P, which will be described later, is stored.
R, automatic start data AS, chain play data CP,
Performance condition data PC, that is, tempo data TP, beat data BE, quantize data QT, effect data EF, and tone generation condition data SC are stored. RO
M7 has a CPU 5 according to a flowchart described later.
Stored are programs executed by, and programs corresponding to other processes.

In the tone generator 19, the key number, touch, tone color input from the keyboard 1 and the panel switch group 3 or in the automatic performance data,
Music data corresponding to music information such as rhythm is generated.
This tone generator 19 includes a plurality of channels,
For example, a musical sound generation system for 16 channels is formed by time division processing, and musical sounds can be generated polyphonically. The tone information assigned to each channel is stored in an assignment memory (not shown).

The generated musical tone data is sent to the sound system 20 via the digital echo circuit 18 and is sounded. The digital echo circuit 18 is composed of a digital delay circuit and an adder. The musical tone data is input to the digital delay circuit via the adder, and the output of the digital delay circuit is fed back to the adder.
The digital echo circuit 18 further has a latch, and the effect data EF is set. The effect data EF is sent to the digital delay circuit, the delay time is determined, and the amount of echo is also determined accordingly.

2. Floppy Disk 14 FIG. 2 shows the stored contents of the floppy disk 14. In the floppy disk 14, directory data DR and reproduction condition data RC are stored at the beginning, and after the data DR and RC, automatic performance data AP for a plurality of songs.
Is stored for each track. This automatic performance data AP is data of a melody part,
It can also store parts such as chords, bass, backing, and arpeggios.

The automatic performance data AP of each track is composed of the first track number data, a note data group, and tone number data, bar mark data, end mark data, etc. inserted between the note data groups. . The track number data indicates the numbers of four tracks.
The note data includes key number data, gate time data, velocity data, step time data, and the like.

The key number data indicates the number of each key on the keyboard 1 and represents the pitch. The gate time data is data indicating the time from key-on to key-off. The step time data is data indicating the time from the beginning of a music piece or the beginning of a bar, that is, bar mark data to the start of sounding a musical tone according to the note data or the execution of a command.

The velocity data is data indicating the speed or strength of key on / off. The velocity data is data corresponding to the on / off time difference of a plurality of key switches which are provided for each key of the keyboard 1 and are turned on / off at different timings when the key is operated. The tone volume, frequency component, etc. are controlled according to the velocity data. The tone number data is data indicating a tone color of a musical tone of an automatic performance such as a piano, a violin, a flute, a drum and a cymbal. The bar mark data is data indicating the division of each bar. The end mark data is data indicating the end of a song.

The automatic performance data AP for each track
The performance condition data PC is stored at the beginning of the song, and the performance condition data PC includes song name data, tempo data TP, beat data BE, and quantize data Q.
T, effect data EF, tone generation condition data SC, protect data PR and the like. The song name is data indicating the name of the song of the automatic performance data AP. The tempo data TP and the beat data BE are data indicating the tempo and time signature of the automatic performance by the automatic performance data AP.

The quantize data QT is data for correcting the deviation from the original timing of the sounding timing and the mute timing of the automatically played music. The quantize data QT is composed of quantize beat data QBT and quantize rate data QRT. The quantize beat data QBT is a time signature indicating the original timing for the above correction. The quantize rate data QRT is rate data indicating the degree of correction with respect to the deviation from the original timing. If this quantize rate data QRT is, for example, "00", it is completely corrected to the timing of the quantize beat data QBT, and if it is "50", 50% of the deviation from the timing of the quantize beat data QBT to the front and back is corrected, The timing of the quantize beat data QBT can be approached by half of the above.

The effect data EF is data indicating the amount of echo of the generated musical tone described above. Pronunciation condition data S
C is data indicating whether each of the musical tones of the automatic performance is to be sequentially sounded according to the set tempo or is sounded for each key-on of the player. The above-mentioned quantize data QT, effect data EF, and tone generation condition data SC can be stored for each track.

[0022] 3. Directory data DR and reproduction condition data RC FIG. 3 shows the directory data DR and reproduction condition data RC. The directory data DR includes the total number of songs of the automatic performance data AP, a storage start address of each song, a song name, and the like. The reproduction condition data RC includes protect data PR, automatic start data AS, chain play data CP and the like. The protect data PR is the floppy disk 14 in which the automatic performance data AP is stored.
On the other hand, it is data indicating whether writing is possible (“0”) or writing is not possible (“1”). Automatic start data AS
Whether to automatically start the automatic performance when the power switch is turned on with the floppy disk 14 set, or when the floppy disk 14 is set with the power switch turned on. It is data indicating whether or not. The protect data PR and the automatic performance data AP can be stored for each song for each track.

The chain play data CP comprises reproduced music number data RO, repeat top bar data RTB, repeat end bar data REB and reproduction number data RN, and a plurality of sets of these data RO, RTB, REB and RN are stored. . The reproduced song number data RO indicates a song to be automatically played among the songs in the automatic performance data AP. The repeat top bar data RTB and the repeat end bar data REB indicate the beginning and the end of the measure to be repeatedly reproduced in the automatically played music. Repeat end bar data RE
If B is "0", repeat playback is performed until the end of the song.
The number-of-reproductions data RN indicates the number of times of reproduction of the above-mentioned automatically played music.

Each of the above-mentioned directory data DR, reproduction condition data RC and performance condition data PC is read from the floppy disk 14 and stored in the working register group 60 of the RAM 6 or the like, and the automatic performance according to the data is executed. To be done. All or part of the directory data DR, the reproduction condition data RC, and the performance condition data PC may be input from the panel switch group 3 and the keyboard 1 and stored in the working register group 60 or the like of the RAM 6. it can. In addition, RAM6
Each data of the directory data DR, the reproduction condition data RC, and the performance condition data PC stored in the working register group 60 and the like can be saved and stored in the floppy disk 14.

[0025] 4. Panel Switch Group 3 FIG. 4 shows the panel switch group 3. In addition to the LCD 22, the panel switch group 3 includes a floppy disk insertion slot 49, a power key 30, an eject key 31, track keys 32, 33, 34, 35, an LED (light emitting diode) 48, a rewind key 36, and a play key. Key 3
7, forward key 38, record key 39, stop key 40, tempo key 41, repeat key 42, song key 43, beat key 44, search key 45, quantize key 46, effect key 47, numeric keypad 50, comma key 51, + key 52, -Key 53, set key 5
4, a clear key 55, a lock key 56, an auto start key 57, and a return key 58 are provided.

The floppy disk 14 is inserted and set in the floppy disk insertion slot 49. As a result, the mounting determination switch 8 is closed. The power key 30 is a power-on key. Eject key 31
Is a key for ejecting the floppy disk 14 set in the floppy disk insertion slot 59.

The track keys 32 to 35 are keys for designating each track of the automatic performance data AP. The number of the track keys 32 to 35 changes according to the number of tracks. Above each of these track keys 32-35,
The LEDs 48 ... Are provided. This LED48 ...
Turns on when the automatic performance data AP is read / written, and turns off when it is inactive. At the time of reading, if the automatic performance data AP is not stored in the track, the LED 48 is turned off.

The rewind key 36 is used for automatic performance data A.
This is a key for returning the access point of P in units of measures.
The forward key 38 is a key that advances the access point of the automatic performance data AP in units of measures. The play key 37 is a key for reading and reproducing the automatic performance data AP from the access point of the sequence RAM 17. The record key 39 is a key for writing and recording the automatic performance data AP from the access point of the sequence RAM 17.

The read automatic performance data AP
Is output as MIDI (Musical Instrument Digital Interface) data, and the written automatic performance data AP also includes MIDI data. The stop key 40 is a key for stopping the recording or reproduction of the automatic performance.

The tempo key 41 is a key for setting the tempo for automatic performance and inputting tempo data TP. The repeat key 42 is a key for designating repetition of the automatic performance and inputting the number-of-reproductions data RN.
Repeating this automatic performance, as described later,
It is also possible to perform only for a specific group of measures. The song key 43 is a key for designating a song to be automatically played and inputting the reproduced song number data RO.

The beat key 44 is a key for inputting beat data BE indicating a time signature. The search key 45 is
It is a key for playing each song little by little at high speed to search for a desired song. The quantize key 46
A key for inputting the quantize data QT. The effect key 47 is a key for inputting the effect data EF indicating the amount of echo.

The numeric keypad 50 is used for the tempo data T mentioned above.
P, beat data BE, quantize data QT (quantize beat data QBT and quantize rate data QRT), reproduction music number data RO, reproduction count data R
A key for inputting specific values of N, repeat top bar data RTB, repeat end bar data REB, and effect data EF. The comma key 51 is a key for separating each numerical value input by the numeric keypad 50. The + key 52 is a key for making an increment of each data described above. The + key 52 is also used to specify a track. The-key 51 is a key for decrementing each data described above. The-key 51 is also used to specify a beat and a bar.

The set key 54 is the keys 41 to 5 described above.
3 is a key for transferring the reproduction condition data RC input by using 3 and stored in the working register group 60 to the floppy disk 14. The clear key 55 is a key for clearing the reproduction condition data RC stored in the working register group 60.

The lock key 56 is the floppy disk 1
4 is a key for switching write enable (“0”) and write disable (“1”) of the protect data PR of No. 4. The auto start key 57 is a key for setting the automatic start data AS to "1". The return key 58 is a key that is operated at the end of the above-described input operation of each data to instruct the processing of the reproduction condition data RC or the performance condition data PC.

[0035] 5. Working Register Group 60 FIG. 5 shows a working register group 60 in the RAM 6. The working register group 60 includes an input buffer register 61, a mode flag register 62, a tempo register 65, a beat register 66, and a quantize register 6.
7, effect register 68, sound condition register 69,
Protect register 70, automatic start register 71, chain play register 72 ..., Tempo counter 74, beat counter 75, bar counter 76, song pointer register 78, track pointer register 79, played sequence register 80, played count register 81, sequence It is composed of a buffer 82, a tone number register 83, and the like.

The input buffer register 61 temporarily stores numerical data, comma data, etc. input by the ten keys 50. The mode flag register 62 has
Play key 37 and record key 3 of panel switch group 3
9, tempo key 41, repeat key 42, song key 4
3. Each operation of the beat key 44, the quantize key 46, and the effect key 47 is temporarily stored, the bit corresponding to each key is set to "1", and after the processing corresponding to each key, this "1" is cleared. It Further, in the mode flag register 62, an automatic performance flag indicating that the automatic performance is being performed, a track designation flag indicating that the track of the automatic performance data AP is designated, and a bar of the automatic performance data AP are designated. A bar designation flag indicating the mode is also stored.

The tempo register 65 stores tempo data TP for automatic performance. In the beat register 66,
The beat data BE of the automatic performance is stored. The quantize register 67 stores the quantize beat data QBT and the quantize rate data QRT of the above-mentioned quantizing process. Quantize beat data QB
T is stored in the first half of the quantize register 67, and the quantize rate data QRT is stored in the quantize register 6
It is stored in the latter half of 7.

The effect register 68 stores the effect data EF indicating the amount of echo. The tone generation condition register 69 stores tone generation condition data SC indicating a tone generation condition for automatic performance. Protect register 7
At 0, the protect data PR for the floppy disk 14 is stored. The automatic start register 71 stores the automatic start data AS. The chain play register 72 ...
P, that is, reproduced music number data RO, repeat top bar data RTB, repeat end bar data REB, and reproduction count data RN are stored. In this case, the four data are stored in each of the four divisions of the chain play register 72.

In the tempo counter 74, the tempo data TP in the tempo register 74 is accumulated for a fixed time, that is, for each interrupt processing, and when the value exceeds 1/48 beats, for example, 2 ¹⁶ and overflows, the beat counter 7
5 is incremented by 1. The beat counter 75 does not count the number of beats that have advanced, but counts 48 times the number of beats that have advanced. The bar counter 76 counts the number of read and processed bar mark data in the automatic performance data AP.

The song point register 78 stores the song number data designated by the automatic performance data AP in the floppy disk 14 or the sequence RAM 17 when saving or loading. The track point register 79 has a floppy disk 14 or a sequence R.
The designated track number of the automatic performance data AP in the AM 17 is stored.

The above-mentioned registers 65 to 72, 76,
The data set in 78 and 79 is input from the panel switch group 3 or the reproduction condition data RC and the performance condition data PC in the floppy disk 14 are loaded. The loaded data can be further corrected by operating the keys 32 to 58 of the panel switch group 3. The data stored in each of the registers 61 to 83 is sent to the LCD driver 21 and displayed on the LCD 22.

The reproduced order register 80 stores reproduced order data FO. This reproduced sequence data FO
Indicates designated points of the chain play data CP of the chain play register 72. The reproduced count data FN is stored in the reproduced count register 81. The number-of-reproductions data FN indicates the number of reproductions of each music piece that is automatically played based on the chain play data CP. In the sequence buffer 82, automatic performance data A
Key number data, gate time data, velocity data, and step time data of each note data of P are set. The set note data is the data to be sounded next. The tone number register 83 stores tone color data for automatic performance, that is, tone number data TN.

6 Input Example of Reproduction Condition Data RC and Performance Condition Data PC FIG. 6 shows an input example of command sequences of the reproduction condition data RC and the performance condition data PC. In FIG. 6, eight examples of example numbers (1) to (8) are shown. Hereinafter, the contents of the reproduction condition data RC and the performance condition data PC set for each example will be described.

(1) Tempo key 41, "1""3"
"5" numeric keypad 50, return key 58.

"135" is set as the tempo data TP.

(2) Tempo key 41, + key 52, and return key 58.

If the + key 52 is operated three times, the tempo data TP is incremented by +3.

(3) Beat key 44, numeric keypad 50 of "0""3", comma key 51, numeric keypad 50 of "0""4", return key 58.

Beat data BE of 3/4 beat is set.

(4) Quantize key 46, + key 5
2, "2" numeric keypad 50, "0""3" numeric keypad 5
0, comma key 51, “7”, “7” numeric keypad 50, return key 58.

The + key 52 designates a track. Therefore, for the automatic performance data AP of the track “2”, the eighth note (“3”) quantize beat data QBT,
The quantize data QT of the quantize rate data QRT of "77" is set. As a result, 77% quantization processing is performed for each eighth note. "77"
The quantize rate data QRT indicates that the deviation of the performance timing is corrected by only 23% while leaving 77% of the eighth note. That is, the deviation time Δt becomes "0.
A value obtained by multiplying by 77 ″ is set as a new deviation time Δta.

Quantize beat data QBT
Is "0" for no correction, "1" for every 32nd note, "2"
For every 16th note, for "3" every 8th note, for "4" 4
Every quarter note, "5" every half note, "6" every whole note, "7" every triplet, "8" every eighth note + every 16th note, "9" every quarter note + 8 Indicates each quarter note. In this case, the song to be quantized is the sequence RAM 17
It is the automatic performance data AP stored in.

(5) Effect key 47, + key 52,
"3" numeric keypad 50, comma key 51, "2""0"
Numeric keypad 50, return key 58.

The effect data EF of "20" is set for the automatic performance data AP of the track "3".
The effect data EF takes values of "00" to "99". In this case, the effect-controlled music is the automatic performance data AP stored in the sequence RAM 17.

(6) Song key 43, numeric keypad 50 of "0""1", comma key 51, numeric keypad 50 of "1""2", repeat key 42, numeric keypad 5 of "0""5"
0, play key 37, return key 58.

Reproduction music number data RO of "01" and "12",
The reproduction count data RN of "05" is set. As a result, the automatic performance data AP of the song numbers "1" and "12" are chained and repeatedly reproduced five times. In this case, if the reproduction count data RN is not input, the reproduction count data RN is automatically set to "01". In addition, since the repeat top bar data RTB and the repeat end bar data REB were not input, the repeat top bar data RT
B is "1", repeat end bar data REB is "0"
It is said.

(7) Song key 43, "0""4" numeric keypad 50, comma key 51, -key 51, "0"
"2" numeric keypad 50, comma key 51, "0""7"
Numeric keypad 50, repeat key 42, “9” “9” numeric keypad 50, play key 37, return key 58.

Reproduction music number data RO of "04", "02"
Repeat top bar data RTB, repeat end bar data REB of “07”, and reproduction count data RN of “99” (infinite). As a result, song number "4"
The second to seventh measures of the automatic performance data AP are repeatedly reproduced infinitely. The repeat end bar data REB of "0" indicates the last measure. The play key 37
If the record key 39 is operated instead of, the automatic performance data AP is recorded. If neither the play key 37 nor the record key 39 is operated, the chain play data CP is only set in the chain play register 72.

(8) Song key 43, ten keys 50 for "0" and "3", search key 45, and return key 58. Only specific measures are played back at high speed for the song number "3". In this case, for example, the tempo data TP is doubled or "200", and the automatic performance data AP is processed every other measure or every two measures.

The key operation contents of (1) to (8) described above are combined to combine the chain play data CP,
It is also possible to set the quantize data QT, the beat data BE, the tempo data TP, and the effect data EF together. In this case, it is possible to specify an arbitrary music number, bar and track.

7. Main Routine FIG. 7 shows a flowchart of the main routine. This processing is started by turning on the power key 30 of the panel switch group 3, and is executed by the CPU 5.

In this processing, the working register group 60
Initialization processing of the RAM 6, including the RAM, the sequence RAM 17, the address counter 16 and the like is performed (step 01). Next, if there is a key on / off of the keyboard 1 (step 02), key processing is performed (step 0).
3). When the panel switch group 3 is turned on (step 04), if the switch related to this key on is the attachment determination switch 8 of the floppy disk 14 (step 05), automatic performance automatic start processing is performed (step 06). If the switch related to key-on is any other key (step 07), panel switch group processing is performed (step 08).

8. Automatic Performance Automatic Start Processing FIG. 8 is a flowchart of the automatic performance automatic start processing of the above step 06. This processing is effective for demonstration performances and the like, and is based on the power key 30 being turned on as described above.
In this process, first, the CPU 5 executes the sequence RAM.
17, address counter 16, working register group 6
Initialization processing is performed by clearing 0 or the like (step 21), and the reproduction condition data RC at the beginning of the floppy disk 14 is read and loaded into the chain play register 72 (step 22). At this time, the directory data DR is also loaded in the empty area of the RAM 6.

Next, if the automatic start data AS of the reproduction condition data RC is "1" and the automatic start of the automatic performance is to be performed (step 23), the automatic performance flag is set in the mode register 62 ( Step 24),
The reproduced music number data RO corresponding to the reproduced order data FO of the reproduced order register 80 is the chain play register 7 described above.
2 is read (step 25). In this case, since the reproduced order data FO = 0, the reproduced music number data RO at the head of the chain play data CP is read.

Then, the automatic performance data AP of the music number corresponding to the reproduced music number data RO is loaded from the floppy disk 14 into the sequence RAM 17 (step 2).
6). In this case, the tempo data TP, the beat data BE, the quantize data QT, the effect data EF, the tone generation condition data SC of the performance condition data PC at the head of the automatic performance data AP are loaded into the registers 65 to 69 of the working register group 60. To be done.

Further, the effect data EF is set in the digital echo circuit 20 (step 27), and the loaded automatic performance data AP is quantized and edited based on the quantize data QT (step 28). This quantize editing process is performed in Japanese Patent Application No. 2-8
No. 4579. In this quantize editing process, the automatic performance data AP is stored in the floppy disk 14
It is also possible to execute it when saving to. Thus, when the power key 30 is turned on, the performance condition data PC stored in the floppy disk 14 is automatically set.

Next, the read address data RAD of the address counter 16 is repeatedly incremented by 1 (step 2
9) The bar mark is searched (step 30). If the bar mark is searched, the bar counter 76 is incremented by 1 (step 31). The bar mark search process of steps 29 to 32 is repeated, and if the value of the bar counter 76 matches the repeat top bar data RTB (step 32), the read address data RAD of the address counter 16 is repeatedly incremented by 1 (step). 33),
The following note data transfer processing is performed. This step 2
9 to 31, the search for the beginning of the repeat reproduction section is performed.

That is, for the loaded automatic performance data AP, the key number data, gate time data, velocity data and step time data of the note data designated by the read address data RAD are transferred to the sequence buffer 82 (step 34). ). In this case, since the read address data RAD has just been cleared, the leading note data is transferred. Also,
In step 34, if the tone number data TN is read, this tone number data TN is transferred to the tone number register 83, and the next note data is transferred to the sequence buffer 82. In this way, the preparation for the pronunciation of the first sound is completed.

Then, the value of the beat counter 75 matches the step time data (step 3
5) In addition, if the tone generation condition data SC is "0" (step 36) and the automatic performance is not performed based on the player's key operation (step 37), the following tone generation processing is performed. That is, in addition to the key number data, gate time data, velocity data of the note data, the tone number data, envelope data, etc. are written in the empty channel area of the assignment memory of the tone generator 19 (step 38). Thus,
When the time corresponding to the step time data of the first sound has elapsed, the sounding process of the first sound is performed, and when the power key 30 is turned on, the automatic performance is automatically started. The tone generation process of the next musical tone is executed by an interrupt process described later.
Thereafter, the read address data RAD of the address counter 16 is incremented by 4 (step 39).

Next, this read address data RA
If the automatic performance data AP corresponding to D is a bar mark (step 40), the tempo counter 74 and the beat counter 75 are cleared (step 41), the bar counter 76 is incremented by 1 (step 42), and the address counter 16 is changed. The value is incremented by 1 (step 43), and the process returns to the note data transfer process of step 34.

In step 36, the tone generation condition data SC loaded in the tone generation condition register 69 is "1".
If the automatic performance is performed based on the player's key operation (step 36), if the same key as the key number data of the note data is turned on (step 3)
7), the tone generation process of step 38 is performed. If the same key as the key number data of the note data is not turned on (step 37), the sounding process of step 38 is not performed.

If it is determined in step 23 that the automatic start data AS is "0" and the automatic performance is not automatically started, the process immediately returns. In this case, if an error is displayed on the LCD 22 and a predetermined switch operation is performed, it is possible to enter the processing of steps 21 to 44. In addition, the floppy disk 14 in step 05 above
It is possible to omit the process of discriminating the set. Further, if the floppy disk 14 is set a while after the power key 30 is turned on, the mounting determination switch 8
Is turned on, the automatic performance automatic start processing is started from this time. Although not shown in FIG. 8, the processes of steps 29 to 44 are executed for each track.

9. Interrupt Process FIG. 9 shows a flowchart of the interrupt process. This process is performed every time a clock signal having a long cycle in the clock signal group for controlling the entire electronic musical instrument is given to the CPU 5. This clock signal may be obtained by counting or dividing a clock signal having a short cycle. Therefore, this processing is performed by the CPU 5 at regular intervals regardless of the set tempo.

In this process, first, if the automatic performance flag register of the mode flag register 62 is not set (step 77), other processes are performed (step 78) and the process returns. Mode flag register 62
If the automatic performance flag register of is set (step 77), the tempo register 65 is set in the tempo counter 74.
The tempo data TP of is accumulated (step 51).

As a result, if the tempo counter 74 overflows (step 52), the tempo counter 74
Is cleared (step 53) and the beat counter 75 is incremented by 1 (step 54). This beat counter 75
Value matches the step time data in the sequence buffer 82 (step 55), the tone generation condition data SC is "0" (step 56), and the automatic performance is performed without being based on the key operation by the performer. If there is (Step 5
7), the following tone generation processing is performed.

That is, in addition to the key number data, gate time data and velocity data of the note data in the sequence buffer 82, the tone number data, envelope data and the like are written in the empty channel area of the assignment memory of the tone generator 19. (Step 58). Thereafter, the read address data RAD of the address counter 16 is incremented by 4 (step 59). In this way, the sound generation process is performed every time the time corresponding to the step time data elapses.

Thereafter, this read address data RA
If the automatic performance data AP corresponding to D is not an end mark (step 60) but a bar mark (step 6)
1) The tempo counter 74 and the beat counter 75 are cleared (step 62), the bar counter 76 is incremented by 1 (step 63), and the address counter 16 is incremented by 1 (step 64). If the repeat end bar data REB of the chain play register 72 is not "0" (step 65) and the value of the bar counter 76 does not match the repeat end bar data REB + 1 (step 66), the following note data transfer process is performed. Done.

That is, for the automatic performance data AP loaded in the sequence RAM 17, the key number data, gate time data, velocity data and step time data of the next note data designated by the read address data RAD are stored in the sequence buffer. 82
(Step 67) and the process returns to step 55.
In step 67, if the tone number data TN is read, this tone number data TN is transferred to the tone number register 83, and the next note data is transferred to the sequence buffer 82. In this way, preparation for pronunciation of the next note is completed.

When the end mark is read in step 60, and in step 66, the bar counter 76 is read.
Is equal to the repeat end bar data REB + 1, the reproduced count data F of the reproduced count register 81.
N is incremented by 1 (step 68). Where repeat 1
The automatic performance for the number of times has ended.

Then, it is judged whether or not the reproduced frequency data FN matches the reproduced frequency data RN (step 69). If they do not match, the tempo counter 74,
The beat counter 75, the bar counter 76 and the address counter 16 are cleared (steps 72 and 73), and the process returns to step 29. Then, the number-of-reproduced data F
Repeat reproduction is repeated until N matches the reproduction number data RN.

If the reproduced count data FN matches the reproduced count data RN, the reproduced order register 80
The reproduced order data FO of +1 is incremented by 1 (step 7
0). As a result, the repeat reproduction for one song is completed. After this, steps 72, 73 and 29
.., 44, steps 77, 78, 51-73 are repeated, and the next piece of music to be automatically played is automatically played. In this way, only by setting the floppy disk 14 and turning on the power, only the music for which the information for automatic performance is set in advance is automatically reproduced for the preset number of times in the preset measure section. The performance will start automatically.

Then, in step 70, the +1 reproduced sequence data FO is added to the chain play register 7
When the end of the chain play data CP of 2 is reached (step 71), the automatic performance flag of the mode flag register 62 is cleared (step 74), and this automatic performance processing ends. Although not shown in FIG. 9, the processes of steps 77, 78, 51 to 74 are executed for each track.

10. Reproduction condition data RC and performance condition data
Writing process of the data processing PC (panel switch group process) FIGS. 10 and 11 are flowcharts of the writing process of the reproduction condition data RC and the performance condition data PC. This process is the panel switch group process of step 08 of FIG. In this process, the operation key is the play key 37,
Record key 39, tempo key 41, repeat key 4
2, song key 43, beat key 44, quantize key 46, effect key 47 (step 8
1), a mode flag of "1" is set to the bit corresponding to each key of the mode flag register 62 of the working register group 60 (step 82).

If the operation key is the + key 52 (step 83), the mode flag of the song key 43, the mode flag of the quantize key 46 or the mode flag of the effect key 47 is set in the process of step 82. If so (step 84), the track designation flag of the mode flag register 62 is set to "1" (step 85). In step 84 above, song key 4
If the mode flag of 3 or the mode flag of the quantize key 46 or the mode flag of the effect key 47 is not set, the data of any one of the registers 65 to 68, 72, 78 and 79 corresponding to the value of the mode flag register 62. Is incremented (step 86).

If the operation key is the-key 53 (step 87), the song key 4
If the mode flag of the mode flag of 3 is set (step 88), the bar designation flag of the mode flag register 62 is set to "1" (step 89). If the mode flag of the song key 43 is not set in step 88, the mode flag register 62
The data in any one of the registers 65 to 68, 72, 78, and 79 corresponding to the value of is decremented (step 9
0).

Next, if the operation keys are the numeric keypad 50 and the comma key 51 (step 91), the code data corresponding to this key is stored in the registers 65 to 68, 72, 78 corresponding to the value of the mode flag register 62. It is written in 79 (step 92).

For example, if the track designation flag is set, the bit of the track register 79 corresponding to the code data is set to "1" in the track register 79. If the bar designation flag is set, the code data is written in the middle divided area of the chain play register 72 as the repeat top bar data RTB and the repeat end bar data REB.

In this case, the repeat top bar data RT
B and the repeat end bar data REB are divided by a comma into the first half of the repeat top bar data RTB and the latter half of the repeat end bar data REB, so that the repeat top bar data RTB is written in the first half of the middle division area of the chain play register 72. The repeat end bar data REB is written in the latter half of the middle divided area of the chain play register 72.

If the mode flag of the song key 43 is set, the above code data is written in the head area of the chain play register 72 as reproduced music number data RO. In this case, multiple song numbers are comma key 5
If they are separated by 1, and input, each music number is written in the head area of each chain play register 72 .... The code data is also written in the music point register 78 as music point data. If the mode flag of the repeat key 42 is set, the code data is written as the reproduction number data RN in the area at the end of the chain play register 72.

On the other hand, if the mode flag of the tempo key 41 is set, the above code data is written in the tempo register 65 as tempo data TP, and if the mode flag of the beat key 42 is set, the above code data is written in the beat register 66. The data is written as beat data BE. In this case, since the beat data BE is divided into the first half numerator data and the second half denominator data by a comma, the numerator data is written in the first half of the beat register 66 and the denominator data is written in the second half of the beat register 66.

In addition, if the mode flag of the quantize key 46 is set, the quantize register 6
7 is written as the quantize data QT, and if the mode flag of the effect key 47 is set, the code data is written in the effect register 68 as the effect data EF. In this case, since the quantize data QT is divided by the comma into the first half of the quantize beat data QBT and the latter half of the quantize rate data QRT, the quantize beat data QBT is written in the first half of the quantize register 67, and the quantize rate data QRT is written in the quantize register. It is written in the latter half of 67.

Next, if the operation key is the set key 54 (step 101), the reproduction condition data RC, that is, the chain play data C of the chain play register 72 is set.
P, the protect data PR of the protect register 70 and the automatic start data AS of the automatic start register 71 are saved in the head area of the floppy disk 14 (step 102).

Then, the performance condition data PC of the registers 65 to 69, that is, the tempo data TP and the beat data B.
E, quantize data QT, effect data EF,
The tone generation condition data SC is saved in the corresponding music area of the floppy disk 14 (step 103). The corresponding music area is designated by the music point data of the music point register 78. In this case, it is possible to load only the reproduction condition data RC or select and load a part of the reproduction condition data RC or the performance condition data PC. This selection is made by each key 4 of the panel switch group 3.
Based on the combination of 1 to 47 and the set key 54.

If the operation key is the clear key (step 104), the protect data PR of the reproduction condition data RC of the floppy disk 14 is confirmed to be "0" (step 105), and the floppy disk 14 is confirmed.
All the chain play data CP of are cleared (step 106). If the protect data PR is "1" (step 105), error notification processing is performed (step 107).

If the operation key is the lock key 56 (step 108), the protect data PR of "1" is written in the floppy disk 14 and the protect register 70 (step 109). The operation key is the automatic start key 5
If 7 (step 110), floppy disk 1
4 and the automatic start data AS of "1" is written in the automatic start register 71 (step 111). A sound condition key and a sound condition register are provided to generate sound condition data S.
For C, as in steps 108 to 111,
It is possible to perform a writing process.

If the operation key is the rewind key 36 (step 112), the value of the bar counter 76 is decremented by 1 (step 113), and if the operation key is the forward key 38 (step 114), the value of the bar counter 76. Is +
1 (step 115). This changes the starting bar of the automatic performance. In steps 113 and 115, the one-measure jump processing of the automatic performance data AP of FIG. 12 is also performed, and the address data AD of the address counter 16 is also set to one.
It is advanced by a bar. If the operation key is the stop key 40 (step 116), the automatic performance flag of the mode flag register 62 is cleared to "0" (step 11).
7). This stops the automatic performance.

If the operation key is the return key 58 (step 120), it is determined whether or not the mode flag of the play key 37 is set (step 12).
1). If it is set, if no data is written in the middle area of each of the chain play registers 72 in which the reproduction music number data RO is written in the leading area in step 92 (step 12).
2), the repeat top bar data RTB of "1" and the repeat end bar data REB of "0" are written (step 123), and if no data is written in the end area (step 124), "1". The reproduction count data RN is written (step 125).

Then, all the flags in the mode flag register 62 are cleared, and the mode flag register 62 is cleared.
The automatic performance flag of is set to "1" (step 12
6), proceed to step 29 in FIG. This starts automatic performance. Play key 37 in step 121 above
If the mode flag of No. 1 is not set, each data of each register 65 to 72 is sent to each circuit, all the flags of the mode flag register 62 are cleared, and the processing corresponding to each data is executed (step 127).

If the operation key is the search key 45 (step 128), the tempo register 65 is set to "20".
The tempo data TP of 0 "is set (step 12
9), the automatic performance flag of the mode flag register 62 is set to "1" (step 130), and the routine proceeds to step 29 of FIG. This starts high-speed automatic performance. In this case, the one-measure jump processing of the automatic performance data AP of FIG. 12 is performed between step 61 and step 62 of FIG.

The present invention is not limited to the above embodiments, and various modifications can be made without departing from the spirit of the present invention. For example, the automatic performance data AP can be stored not only in a floppy disk but also in a memory card such as a RAM card or a ROM card, or an optical memory disk. Further, the automatic performance automatic start processing of FIG. 8 can be started not only by turning on the power switch but also by turning on other switches, and a power-on instruction from a remote remote control device or a predetermined key-on is performed. It is also possible based on instructions.

Further, the automatic performance data AP reproduced by the automatic performance processing of steps 38 and 58 may be sent to the tone generator 19 or may be sent via the MIDI interface. other than this,
It is also possible to return to step 29 after YES in step 71 and repeat the processing of FIGS. 8 and 9 until the power is turned off. Further, the effect data EF can be one that realizes musical effects such as glide, portamento, vibrato, tremolo, mandolin, feather, and sustain. In addition, performance condition data PC
Can also include overall velocity, volume, rhythm type, and transpose data.

[0102]

As described above in detail, according to the present invention, the information of the musical condition is stored together with the automatic performance information for automatically starting the automatic performance, and the information of the musical condition is responsive to a specific operation. The musical condition is set, and the automatic performance information is output based on the set musical condition. As a result, upon automatic performance, it is possible to automatically set the musical condition of the automatic performance, which is very convenient for street demo performance and the like.

[Brief description of the drawings]

FIG. 1 is an overall circuit diagram of an electronic musical instrument.

FIG. 2 is a diagram showing the contents of performance condition data PC and automatic performance data AP stored in a floppy disk driver 15.

FIG. 3 shows directory data DR and reproduction condition data RC stored at the head of the floppy disk driver 15.
It is a figure which shows the content of.

FIG. 4 is a diagram showing a panel switch group 3.

5 is a diagram showing a working register group 60. FIG.

FIG. 6 is a diagram showing an input example of reproduction condition data RC and performance condition data PC.

FIG. 7 is a diagram showing a flowchart of a main routine.

FIG. 8 is a diagram showing a flowchart of automatic performance automatic start processing (step 06).

FIG. 9 is a diagram showing a flowchart of interrupt processing.

FIG. 10: Reproduction condition data RC and performance condition data PC
Write processing (panel switch group processing) (step 0
It is a figure which shows the flowchart of 8).

FIG. 11: Reproduction condition data RC and performance condition data PC
Write processing (panel switch group processing) (step 0
It is a figure which shows the flowchart of 8).

FIG. 12 is a diagram showing a flowchart of a one-bar jump process of automatic performance data AP.

[Explanation of symbols]

1 ... keyboard, 3 ... panel switch group, 5 ... CPU,
6 ... RAM, 7 ... ROM, 8 ... Mounting determination switch, 14
… Floppy disk, 15… Floppy disk driver, 16… Address counter, 17… Sequence RA
M, 18 ... Digital echo circuit, 30 ... Power key, 3
1 ... Eject key, 32, 33, 34, 35 ... Track key, 36 ... Rewind key, 37 ... Play key, 3
8 ... Forward key, 39 ... Record key, 40 ... Stop key, 41 ... Tempo key, 42 ... Repeat key, 4
3 ... Song key, 44 ... Beat key, 45 ... Search key, 46 ... Quantize key, 47 ... Effect key,
48 ... LED (light emitting diode), 49 ... Floppy disk insertion slot, 50 ... Numeric keypad, 51 ... Comma key, 5
2 ... + key, 51 ...- key, 54 ... Set key, 55 ...
Clear key, 56 ... Lock key, 57 ... Auto start key, 58 ... Return key 58, 60 ... Working register group, 61 ... Input buffer register, 62 ... Mode flag register, 65 ... Tempo register, 66 ... Beat register, 67 ... Quantize register, 68 ... Effect register, 69 ... Sound condition register, 70 ... Protect register, 71 ... Automatic start register, 72 ... Chain play register, 74 ... Tempo counter, 75 ... Beat counter, 76 ... Bar counter, 78 ... Song pointer Registers, 79 ... Track pointer register, 80 ... Reproduced order register, 81 ... Reproduced number register, 82 ... Sequence buffer, 83 ... Tone number register 83.

Claims (9)

(57) [Claims] 1. A storage means which is detachable from an automatic performance device and which stores automatic performance information for automatically performing a performance and information about musical conditions of the automatic performance, and a power source for an electronic musical instrument. Input and this storage means to the electronic musical instrument concerned
The means for reading the information on the musical condition stored in the storage means in accordance with the mounting of the device, the means for setting the musical condition according to the read information on the musical condition, and the means for storing in the storage means. Means for reading the read automatic performance information and means for outputting the read automatic performance information on the basis of the set musical condition, the automatic performance is controlled by turning on the power of the electronic musical instrument and the electronic instrument. Musical instrument
An automatic performance device for an electronic musical instrument, which is automatically started in response to mounting of the storage means on the . 2. A storage means which is detachable from an automatic performance device and which stores automatic performance information for automatically performing a performance, and information on the editing conditions for quantizing this automatic performance, and an electronic musical instrument. Power-on and this storage means for the electronic musical instrument
Depending on the mounting, stored in the storage means quantize
Means for reading the information of the editing condition of the figure, and means for setting the editing condition quantize in accordance with the information of the editing condition of the read-out quantization, and means for reading auto-play information stored in the storage means, The automatic performance information that was read out is used as the qua
An automatic performance device for an electronic musical instrument, characterized in that the automatic performance device comprises means for outputting based on an editing condition of quantization . 3. The automatic musical instrument playing apparatus for an electronic musical instrument according to claim 1, wherein the musical condition is a reproduction order or a number of times of reproduction of a plurality of automatic musical performance information. 4. The automatic musical instrument playing device for an electronic musical instrument according to claim 1, wherein the musical condition is a setting condition of a musical effect. 5. The automatic musical instrument of the electronic musical instrument according to claim 1, wherein the musical condition is a quantize editing condition. 6. The musical condition is that each musical tone of the automatic performance information is sounded in accordance with the tempo, or 1 for each sounding operation.
The automatic performance device for an electronic musical instrument according to claim 1, characterized in that it is a condition of sounding one by one . 7. The automatic musical instrument playing device for an electronic musical instrument according to claim 1 or 2, wherein the information on the musical condition is inputted by a key operation and saved in the storage means. 8. A removable from the automatic playing apparatus, moreover the automatic performance information for playing automatically, per storage means for storing the information of the musical conditions of the automatic performance, an electronic musical instrument supply Input and this storage means to the electronic musical instrument concerned
Depending on the mounting, the a step of suggesting read out the information stored musical condition in the storage unit, a step of setting the musical condition according to the information of the read musical condition, the storage to suggest read out the automatic performance information stored in the means
That step a, the read auto-play information has been, and a step of outputting, based on said set musical condition, the automatic performance, power-on and the electronic musical instrument of the electronic musical instrument
An automatic performance method for an electronic musical instrument, which is automatically started in response to mounting of the storage means on the . 9. A removable from the automatic playing apparatus, moreover the automatic performance information for playing automatically, per storage means for storing the information of the editing condition quantize the automatic performance, an electronic musical instrument Power-on and this storage means for the electronic musical instrument
Depending on the mounting, stored in the storage means quantize
Reading a step of suggesting read out the information of the editing condition of the figure, a step of setting the editing condition quantize in accordance with the information of the editing condition of the read quantized, the automatic performance information stored in said storage means to go straight to parallax
That a step, the read auto-play information has been, is the set Quo
A method of automatically playing an electronic musical instrument, comprising the step of outputting based on editing conditions of quantization .