JPH0646355B2 - Rhythm playing device - Google Patents

Description

The present invention relates to a rhythm playing device having a plurality of rhythm sound source channels, and more particularly to a technique for assigning rhythm sound type designation information to the rhythm sound source channels.

SUMMARY OF THE INVENTION The present invention assigns the rhythm sound type designation information to any of a plurality of rhythm sound source channels each time the rhythm sound type designation information is generated based on a manual operation or a rhythm pattern, and generates the rhythm. By specifying the type of sound, a variety of rhythm performances can be performed with a small number of channels.

[Prior Art] Conventionally, as a rhythm playing device having a plurality of rhythm sound source channels, a plurality of rhythm sound types (for example, a bass drum, a cymbal, a snare drum, etc.) are assigned to a plurality of rhythm sound source channels for each rhythm kind to be played. It is known that the rhythm performance is automatically performed by selectively allocating and driving these rhythm sound source channels in accordance with a rhythm pattern relating to a rhythm type (for example, a march) to be played (for example, Japanese Patent Laid-Open Publication No. Sho. 59-191).

[Problems to be Solved by the Invention] According to the above-mentioned conventional technique, if the types of rhythms to be played are determined, the types of rhythm sounds to be generated in each of the eight rhythm sound source channels are fixed,
It was not possible to perform a rhythm performance that is complicated and varied in content by using, for example, 16 types of rhythm sounds that are larger than the number of channels.

Further, if such a complicated rhythm performance is performed by the conventional device, the number of channels must be increased and the structure must be complicated.

[Means for Solving Problems] An object of the present invention is to enable rhythm performance rich in variation with a small number of channels.

A rhythm playing device according to the present invention is a sound source unit having a plurality of rhythm sound source channels, each rhythm sound source channel being capable of generating a rhythm sound signal corresponding to a specified rhythm sound type, Storage means for storing a plurality of rhythm sound type designation information respectively corresponding to a plurality of rhythm sound types larger than the number of rhythm sound source channels with respect to the rhythm to be played, and timing information for instructing sounding timing for each rhythm sound type A means for generating a tempo clock signal, and rhythm sound type designation information corresponding to the rhythm sound type each time the sounding timing is reached for each rhythm sound type based on the tempo clock signal and the timing information of the storage means. The reading means for reading from the storage means and the rhythm sound type designation information read from the storage means By assigning the rhythm sound type designation information to any one of the plurality of rhythm sound source channels, the rhythm sound type corresponding to the rhythm sound type designation information is designated in the rhythm sound source channel to be assigned And a allocating means for generating a corresponding rhythm sound signal.

In such a rhythm playing device, instead of providing a storage means, a means for generating a tempo clock signal, and a reading means, a plurality of rhythm sound types corresponding to a plurality of rhythm sound types larger than the number of rhythm sound source channels are provided. Of the rhythm performance operator, and information generating means for generating rhythm sound type designation information for designating the rhythm sound type corresponding to the rhythm performance operator associated with the operation each time one of the plurality of rhythm performance operators is operated. And the allocating means may generate the rhythm sound signal by allocating the rhythm sound type designation information generated from the information generating means to any of the rhythm sound source channels.

[Operation] According to the configuration of the present invention, the storage means has a plurality of (eg, 16) more than the number of rhythm sound source channels (eg, 8).
The rhythm sound type designation information corresponding to the rhythm sound type is stored together with the timing information. Then, the rhythm sound type designation information is read from the storage means each time the rhythm sound type reaches the sound generation timing based on the tempo clock signal and the timing information.

Further, when a plurality of (for example, 32) rhythm performance operators, which are larger than the number of rhythm sound source channels (for example, 8), are provided, the rhythm is played by the information generating means each time any one of the rhythm performance operators is operated. Rhythm sound type designation information corresponding to the performance operator is generated.

Then, the allocating means allocates the rhythm sound type designation information read from the storage means or the rhythm sound type designation information generated by the information generating means to any rhythm sound source channel, and as a result, the rhythm sound source relating to the allocation. A rhythm sound signal corresponding to the rhythm sound type designation information related to the allocation is generated from the channel. Therefore, for example, 8
Even with a small number of channels, a variety of rhythm sounds such as 16 or 32 can be used over time to perform a variety of rhythm performances.

[Embodiment] FIG. 1 shows the configuration of an electronic musical instrument according to an embodiment of the present invention. In this electronic musical instrument, a manual performance sound is generated based on a keyboard operation, a rhythm pattern is written in a program mode, and a manual rhythm is generated. The generation of sounds and autorhythm sounds, the generation of autorhythm sounds in the play mode, etc. are controlled by a microcomputer. Note that, in FIGS. 1 and 2, the signal lines with diagonal lines, such as the TD in FIG. 1, are a plurality of signal lines or represent a signal flow of a plurality of bits.

Structure of Electronic Musical Instrument (FIG. 1) In FIG. 1, a keyboard 12, a panel device 14, a central processing unit (CPU) 16, a program and data ROM (read only memory) 18, data and Working RAM (random access memory) 20,
Tempo timer 22, roll timer 24, truncate timer
A keyboard tone generator (TG) 28, a rhythm tone generator (TG) 30, etc. are connected.

The keyboard 12 has a large number of keys, and key pressing information is detected for each key.

The panel device 14 is provided with various operators for musical tone control or performance control and various display elements, and operation information is detected for each operator.

In the panel device 14, as an operator related to the implementation of the present invention, a pad operator P for hand percussion is used.
DS, rhythm selection operator RSS, roll designation operator RLS, program mode designation operator PMS, start / stop operator SPS, tempo adjustment operator TM
N and are provided.

As the pad operator PDS, 32 self-restoration type pad switches respectively corresponding to 32 kinds of rhythm sounds such as bass drum, snare drum, cymbal, etc. are provided.

As the rhythm selection operator RSS, for example, first to first corresponding to N (arbitrary plural) kinds of factory-set rhythm patterns such as march, waltz, rumba ...
An Nth rhythm selection switch and an Mth rhythm selection switch for selecting a rhythm pattern programmed by the performer are provided. A display element LD including a light emitting diode is provided for each rhythm selection operator, and when the rhythm selection operator is turned on to select a desired rhythm, the corresponding display element LD is turned on. ing.

The roll designating operator RLS is composed of, for example, a self-reset type switch, and when the desired pad operator (for example, corresponding to a snare drum) is turned on at the same time, a rhythm sound corresponding to the pad operator is generated. Roll (continuous hit)
You can specify pronunciation.

The program mode designating operator PMS is composed of, for example, a self-reset type switch, and it is possible to designate the program mode and the play mode alternately each time it is operated. Also,
A display element PLD including a light emitting diode is provided in the vicinity of the operator PMS, and the display element PLD is lit when the program mode is designated.

The start / stop operator SPS is composed of, for example, a self-reset type switch, and it is possible to alternately instruct start and stop for each operation.

The tempo adjusting operator TMN is composed of, for example, a rotary knob, and is used for setting a desired tempo. A tempo display element TLD including four light emitting diodes arranged in a line is provided near the manipulator TMN, and sequentially lights at a speed corresponding to the set tempo in the program mode and the play mode. By doing so, the tempo is displayed.

The CPU 16 executes various processes in accordance with the programs stored in the ROM 18, and details of these processes will be described later with reference to FIGS. 6 to 17.

The ROM 18 stores, in addition to programs for various processes, data relating to the rhythm pattern of the factory set, etc. The stored contents will be described later with reference to FIG.

The RAM 20 has a storage unit for storing data relating to the rhythm pattern programmed by the performer,
In addition to this, it also includes a storage unit used as a working register or the like for various processes by the CPU 16. R
The contents stored in the AM 20 will be described later with reference to FIG.

The tempo timer 22 generates a tempo clock signal TCL having a frequency according to the tempo data TD, and each clock pulse of this signal TCL is used to start the tempo clock allocation process of FIG.

The roll timer 24 generates a roll clock signal RCL, and each clock pulse of this signal RCL is the 16th clock pulse.
It is used to start the role timer allocation process in the figure. The clock generation cycle of the roll timer 24 is set to several tens [ms] as an example, but this may be arbitrarily variably set according to the player's operation or an external signal.

The truncate timer 26 generates a truncate clock signal KCL, and each clock pulse of this signal KCL is used to start the truncate timer allocation process of FIG. As an example, the clock generation cycle of the truncate timer 26 is set to several 10 [ms].

In this embodiment, the three timers 22, 24 and 26 are provided independently of each other, but the output of one timer can be appropriately divided to obtain the required clock signal.

The keyboard TG 28 generates a tone signal KTS corresponding to the pressed key based on the key pressing information detected from the keyboard 12.

The rhythm TG 30 receives the rhythm sound signal R based on the operation of the pad operator PDS and / or the selected rhythm pattern.
The TS is generated, which will be described later in detail with reference to FIG.

The sound system 32 is for converting the musical sound signal KTS and the rhythm sound signal RTS into sound.

Configuration of Rhythm TG 30 (FIG. 2) FIG. 2 shows an example of the configuration of the rhythm TG 30. In this example, a maximum of 8 rhythm sound source channels are driven by time division. Eight kinds of rhythm sounds can be pronounced simultaneously.

Of the registers 40, 42, 44, 46 connected to the data bus 10, 40 is the one in which the channel number (CH number) is stored, and 42 is the instrument code ICOD indicating the rhythm tone type.
E is stored, 44 is envelope waveform data E
As shown for V, a volume value VLM corresponding to the attack level of the envelope is stored, and 46 is key-on information KON for instructing the start of generation of a rhythm sound. These registers 40, 42, 44, 46
Information is simultaneously transferred to each of the rhythm sound types at the timing when it should be sounded.

The write control circuit 48 uses the CH from the register 40 among the eight time division channels included in the ICODE storage circuit 50.
Write control is performed so that the instrument code ICODE from the register 42 is assigned to the channel corresponding to the number. The memory circuit 50 cyclically stores the assigned instrument code and sends it at the timing of the channel related to the assignment. It is supposed to do.

The write control circuit 52 is included in the VLM storage circuit 54.
The write control is performed so that the volume value VLM from the register 44 is assigned to the channel corresponding to the CH number from the clock 40 among the two time division channels. The memory circuit 54 cyclically assigns the assigned volume value. It is stored and transmitted at the timing of the channel related to allocation.

The write control circuit 56 is included in the KON storage circuit 58.
The write control is performed so that the key-on information KON from the register 46 is assigned to the channel corresponding to the CH number from the register 40 among the two time-division channels. The memory circuit 58 cyclically stores the assigned key-on information. It is stored and sent as a key-on pulse KONP at the timing of the channel related to the allocation.

The address generator 60 is capable of time-divisionally generating address information for eight channels, and uses a key-on pulse KONP.
When the address is received, the address information is generated at the timing of the assigned channel of KONP.

The rhythm sound waveform memory 62 stores, for example, a rhythm sound waveform (from the start of rising to the end of attenuation) collected from an actual percussion instrument by the PCM (pulse code modulation) recording method. Stores 32 types of rhythm sounds that can be designated by the pad operator PDS.

From the waveform memory 62, the rhythm sound waveform corresponding to the musical instrument code assigned to each channel is read according to the address information from the address generator 60. For example, if a bass drum is assigned to the first channel, the bass drum sound waveform is read at the timing of the first channel.

The envelope generator 64 generates envelope waveform data EV for the rhythm sound corresponding to the musical instrument chord associated with each channel in response to the key-on pulse KONP, and the attack level in the envelope indicated by the envelope waveform data EV is It is determined according to the volume value VLM from the storage circuit 54.

The rhythm sound waveform data WD from the waveform memory 62 and the envelope waveform data EV from the envelope generator 64 are supplied to the multiplier 66 and multiplied for each channel. Then, the multiplication output MO (digital musical instrument signal) of the multiplier 66
Is the accu-lator, D /
Analog rhythm sound signal RTS via A converter etc.
And then supplied to the sound system 32.

According to the rhythm TG 30 described above, rhythm sound signals for 8 channels can be simultaneously generated, and various kinds of rhythm sound signals corresponding to the waveforms stored in the waveform memory 62 can be specified by designating the rhythm sound type by the instrument code ICODE for each channel. The rhythm sound signal of can be generated.

Contents stored in ROM 18 (FIG. 3) FIG. 3 shows contents stored in the ROM 18.
M18 includes a storage unit used as a rhythm pattern memory as shown in (A), a storage unit used as a truncated value memory as shown in (B), and a volume value memory as shown in (C). Storage unit used as
In addition, storage of tone color parameters, effect parameters and the like (not shown) are included.

In the rhythm pattern memory (A), storage blocks RPMMEM (1) to RMEM which store rhythm patterns respectively corresponding to N kinds of rhythms (rhythm 1 to rhythm N).
PMEM (N) and a track number storage area PTNNU storing the number of storage tracks of these storage blocks, respectively.
M (1) to PTNNUM (N) are provided.

The storage block RPMMEM (1) corresponding to rhythm 1 is provided with 16 storage tracks, and a musical instrument chord storage area PICODE, a roll designation information storage area PRLFLG, and a timing information storage area are provided for each storage track. Is provided. The arrangement of such storage tracks and storage areas is the same for the other rhythms 2 to N, but the number of storage tracks is the number required for each rhythm. For example, the number of tracks for rhythm 1 is 16 (PTNNUM (1) = 16), the number of tracks for rhythm 2 is 9 (PTNNNUM (2) = 9), and the number of tracks for rhythm N is 3 (PTNNNUM).
(N) = 3).

In each instrument chord storage area PICODE, an instrument chord representing a rhythm tone type is stored, and in each roll designation information storage area PRLFLG, roll designation information 1 or 0 indicating whether or not a roll is designated is stored. In this case, even the same rhythm sound type is treated as different rhythm sound types with and without roll designation. For example, separate storage tracks are provided for a simple snare drum and a snare drum roll, and in these storage tracks, the PICODE instrument chords are the same for the snare drum, but the roll designation information of PRLFLG is not the simple snare drum. 0, and 1 for snare drum rolls.

Each timing information storage area has a tempo counter TPC.
64 memory cells PTN corresponding to TR count values 0 to 63 (timing at which sound can be generated) are provided.
1 is stored in the memory cell corresponding to the timing of sound generation, and 0 is stored in the memory cell corresponding to the timing of no sound generation. The tempo counter TPCTR belongs to the RAM 20, as will be described later, and has a tempo clock signal TC.
L is recursively counted every two measures. Therefore,
The stored information in each timing information storage area represents a sound emission control pattern for two measures.

FIG. 4 shows, as an example, timing data for one bar regarding the bass drum, snare drum, and snare drum roll, and the same timing data as that shown in the figure is stored for one bar to be read.

In FIG. 4, there are eight soundable timings (for example, 0 to 7 in the value of TPCTR) within one beat, and one (1) for each soundable timing for the bass drum, snare drum, and snare drum roll. Pronunciation required) or 0
Information (no pronunciation required) is placed. An arrow extending from 1 or 0 to the right indicates that the same information can be read.

According to the timing data of FIG. 4, the bass drum starts to sound at the first beat and the third beat, and the snare drum starts at the second beat and the fourth beat. To be done.
Further, the snare drum roll is instructed to roll sound over the period from the beginning of the first beat to the end of the second beat, and during the period corresponding to this period, the roll sound is generated by the roll timer interrupt processing of FIG. .

For rhythm 1 to rhythm N, rhythm code 1 to
N is defined, and the rhythm code register RCODE in the RAM 20 has the selected rhythm (for example, march).
The rhythm code corresponding to is set. RAM
A track number is set in the track number register TRN in 20 as described later. Therefore, RCOD
By using E and TRN, it is possible to read out and specify a specific storage track relating to a specific rhythm.

For example, as shown for rhythm 1 in FIG.
If RCODE = 1 and TRN = 10, the storage track PICODE and PRL are specified by specifying the storage track 10 of rhythm 1.
The FLG information can be read, and if TPCTR is used, the memory cell PTN can be designated to read the tone generation control information (1 or 0) for one tone generation timing.

By the way, in the truncate value memory of FIG. 3 (B), truncate values are stored respectively corresponding to 32 kinds of rhythm sounds (instrument 1 to instrument 32) which can be designated by the pad operator PDS. Each truncate value is determined in consideration of the sounding period (especially the decay time) of the corresponding rhythm sound type, and in this example, the longer the sounding period, the larger the value. In FIG. 3 (B), "Musical instrument 1" is a bass drum,
"Musical instrument 2" is an example of a snare drum, and "instrument 32" is an example of a conga. In this example, the truncate value is not distinguished between the normal sound and the roll sound, but may be stored separately.

In the volume value memory of FIG. 3 (C), musical instruments 1 to 32 are used in the same manner as the above-mentioned truncated value memory.
The volume value VLM is stored in correspondence with each.
In this case, different volume values are stored for the normal sound and the roll sound for each rhythm sound type, and the volume value of the roll sound is about half the value of the normal sound. this is,
For example, as shown in FIG. 4, when the snare drum and the snare drum roll are sounded at the same time, if they are sounded at the same volume, the snare drum sound is masked by the snare drum roll sound, and the snare drum sound is not fluttered. This is because it is not preferable.

Contents stored in RAM 20 (FIG. 5) FIG. 5 shows contents stored in RAM 20.
M20 includes a storage unit used as a rhythm pattern program memory as shown in (A) and a storage unit used as a channel allocation memory as shown in (B).
As shown in (C), a storage unit used as a working memory, and a storage unit (not shown) for other panel operators, sound allocation, etc. are included.

In the rhythm pattern program memory of (A),
A storage block RPMMEM (M) for storing a rhythm pattern corresponding to the rhythm code M and a track number storage area PTNNUM (M) for storing the number of storage tracks used in this storage block are provided. There is.

The memory block RPMMEM (M) is provided with 16 memory tracks, and an instrument chord memory area PICODE and a roll designation information memory area PRL are provided for each memory track.
An FLG and a timing information storage area are provided. The data format in these storage areas is
This is the same as described above regarding the rhythm pattern memory of FIG.

32 pad controls P in program mode
When any one of DS is operated, first, a musical instrument code indicating a rhythm sound type corresponding to the operated pad operator is written in the storage area PICODE of the track 1.
At this time, 1 is written in the storage area PRLFLG of the track 1 if the roll designating operators RLS are operated at the same time, and PR is given if the operator RLS is not operated.
0 is written in LFLG. In the timing information storage area of track 1, 1 is written in the storage cell PTN corresponding to the value of TPCTR at this time.

Next, when another pad operator is operated, the storage area PIC of track 2 is processed in the same manner as described above for track 1.
Musical instrument chords, roll designation information, and timing information are written in the ODE, PRLFLG, and timing information storage areas, respectively.

Next, when the same pad operator that was operated first is operated, the instrument chords, roll designation information and timing information are respectively stored in the storage areas PICODE, PRLFLG and the timing information storage area of the track 1 in the same manner as described above for the track 1. Is written.

In this way, pattern writing is performed so that a new track is assigned each time a new pad operator other than the assigned one is operated, and a rhythm pattern is completed with, for example, eight types of rhythm sounds. In this case, the rhythm patterns are stored in the tracks 1 to 8, and the value of the storage area PTNNUM (M) finally becomes 8.

In the program mode and the play mode, for example, as shown for track 8, RCODE and T
By specifying the storage areas PICODE and PRLFLG using RN, and by using TPCTR, the storage cell PT
N can be specified.

By the way, in the channel allocation memory of FIG. 5B, eight instrument code registers ICODE (1) to ICOD corresponding to the channels CH1 to CH8, respectively.
E (8) and 8 truncation counters TCTR
(1) to TCTR (8) and eight roll flags RLF
LG (1) to RLFLG (8) and eight volume value registers VLM (1) to VLM (8) are provided.

Each instrument code register stores an instrument code for the corresponding channel. Each truncate counter has a corresponding channel in FIG. 3 (B).
The truncate value read from the truncate value memory is stored, and the stored truncate value is decremented (down-counted) by 1 by the truncate timer interrupt processing of FIG. Each roll flag stores roll designation information regarding the corresponding channel. Each volume value register stores the volume value VLM read from the volume value memory of FIG. 3C for the corresponding channel.

The working memory shown in FIG. 5C has the following registers.

(1) Rhythm code register RCODE ... This stores the rhythm code (any one of 1 to N and M) corresponding to the operated rhythm selection operator RSS.

(2) Pad code register PDCODE ... This stores the instrument code (any one of 1 to 32) representing the rhythm sound type corresponding to the operated pad operator PDS.

(3) Tempo counter TPCTR ... This is for counting the tempo clock signal TCL repeatedly every two bars.
It takes a count value from 0 to 63 within a measure, and is reset to 0 when it reaches 64.

(4) Program mode flag PRGFLG ... This is 1
Indicates a program mode, and 0 indicates a play mode.

(5) Start flag START ... This indicates a rhythm running when 1 and a rhythm stop when 0.

(6) Roll designation information register RLSW ... This is set to 1 when the roll designation operator RLS is in operation, and is set to 0 when it is not in operation.

(7) Track number register TRN ... This is for storing the track number (any one of 1 to 16).

(8) Assigned channel number register ACH ... This stores the channel number corresponding to the channel to which the instrument code is to be assigned.

(9) Channel number register CHN ... This stores the channel number (any one of 1 to 8).

(10) Tempo count value register DTDCTR ...
The tempo count value (value obtained by subtracting 1 from the value of TPCTR) at the time of the previous tempo clock interrupt is set.

Rhythm performance related panel operation (FIG. 1) Here, prior to explaining various processes after FIG. 6,
The outline of panel operation related to rhythm performance is described.

To program a rhythm pattern, the program mode designating operator PMS is operated to select the program mode (display element PLD is lit). Then, one of the rhythm selection operators RSS corresponding to the rhythm code M is turned on to enable writing to the storage block RPMMEM (M). Furthermore, if desired, the tempo adjustment operator TM
Set the tempo by N. After that, when a start command is issued by the start / stop operator SPS, the display element TLD is turned on in accordance with the set tempo. Therefore, one of the pad operators PDS is operated several times in accordance with the display tempo to specify a specific value. The timing information regarding the rhythm sound type (for example, bass drum) is input in real time. At this time, a rhythm sound (manual rhythm sound) related to the input is generated each time the input operation is performed.

When such input is completed, input operation is similarly performed for other rhythm sound types (for example, snare drum). At this time, the auto rhythm sound is generated based on the timing information that has been previously input, and the manual rhythm sound being input is also generated. In the same manner, the rhythm pattern corresponding to the rhythm code M can be completed by performing the input operation for the required number of rhythm sound types, and when the input is completed, the stop command is issued by the start / stop operator SPS.

On the other hand, when it is desired to perform an automatic rhythm performance based on a desired rhythm pattern, the program mode designating operator P
The play mode is selected by the MS (display element PLD off). Then, one of the rhythm selection operators RSS corresponding to a desired rhythm (any of rhythm codes 1 to N and M) is turned on. Furthermore, after setting the tempo with the tempo adjusting operator TMN as desired, the start / stop operator SPS issues a start command. Then,
The display element TLD lights up according to the set tempo,
An autorhythm sound is generated according to the selected rhythm pattern.

While such an autorhythm sound is being generated, a manual performance can be performed on the keyboard 12 as an accompaniment, while a manual rhythm sound can be generated by operating the pad operator PDS as desired.

Main Routine (FIG. 6) FIG. 6 shows the flow of processing of the main routine.
This routine starts when the power is turned on.

First, in step 70, various registers are initially set. For example, 0 is set in START, PRGFLG, TPCTR and the like.

Next, at step 72, key depression detection / sound generation assignment processing is performed. This is the TG for the keyboard by detecting the key depression information from the keyboard 12.
The tone signal KTS corresponding to the depressed key is generated by assigning to 28 appropriate channels, which enables the generation of a manual performance tone in response to a key depression operation. After step 72, the process moves to step 74.

In step 74, a rhythm selection subroutine is executed as described later with reference to FIG. Then, the routine proceeds to step 76, where a mode selection subroutine is executed as described later with reference to FIG. After this, move to step 78, the ninth
A start / stop subroutine is executed as described later with reference to the drawing. After step 78, the process proceeds to step 80.

In step 80, tempo control processing is performed. That is,
The frequency of the tempo clock signal TCL is set according to the tempo data TD by sending the tempo data TD corresponding to the tempo set by the tempo adjustment operator TMN to the tempo timer 22. Then, the process proceeds to step 82.

In step 82, a pad operation subroutine is executed as described later with reference to FIG. Then, the process proceeds to step 84.

In step 84, other panel controls (for example, timbre,
Processing related to effects etc.). After that, the process returns to step 72 and the above-mentioned processing is repeated.

Rhythm Selection Subroutine (FIG. 7) FIG. 7 shows a rhythm selection subroutine.

When an on event occurs in any of the rhythm selection operators RSS, in step 90, the rhythm code corresponding to the operated rhythm selection operator is set in RCODE. Then, the process proceeds to step 92.

In step 92, the display element LD corresponding to the operated rhythm selection operator is turned on and the other display elements LD are turned off. After that, the process returns to the routine of FIG. Note that “RET” shown in FIG. 7 and subsequent figures means return.

Mode Selection Subroutine (FIG. 8) FIG. 8 shows a mode selection subroutine.

When an on event occurs in the program mode designating operator PMS, in step 100, the contents of PRGFLG are inverted. That is, when the value of PRGFLG is 0, it is 1, and when it is 1, it is 0. Then, the process proceeds to step 102.

In step 102, it is determined whether the value of PRGFLG is 1 (program mode). If the determination result is affirmative (Y), the process proceeds to step 104.

In step 104, the contents of the storage block RPMMEM (M) are all cleared and the storage area PTNNUM is set.
Also clear (M). Then, the process proceeds to step 106 to clear all the contents of the channel allocation memory of FIG. 5 (B). Thereafter, in step 108, the rhythm code M is set in RCODE. These processes are for enabling writing of a new rhythm pattern.
After step 108, the process moves to step 110.

In step 110, the display element PLD is turned on to display that it is in the program mode. After that, the process returns to the routine of FIG.

If the determination result of step 102 is negative (N), the play mode is set, and the display element PL is determined in step 112.
After turning off D, the routine returns to the routine shown in FIG.

Start / Stop Subroutine (FIG. 9) FIG. 9 shows a start / stop subroutine.

When an on-event occurs in the start / stop operator SPS, the contents of START are inverted in step 120. That is, when the value of START is 0, it is set to 1, and when it is 0, it is set to 1. And step
Move on to 122.

In step 122, it is determined whether the value of START is 1 (start). If the result of this determination is affirmative (Y), the routine proceeds to step 124, where TPCTR is set to 0. This is the first rhythm pattern when the rhythm starts.
This is because it is possible to read from the head of the bar.

When the processing of step 124 is completed or when the determination result of step 122 is negative (N) (when it is stop), the routine returns to the routine of FIG.

Pad Operator Subroutine (FIG. 10) FIG. 10 shows a pad operator subroutine.

When an on event occurs in any of the pad operators PDS, it is determined in step 130 whether the value of PRGFLG is 1 (program mode). If the result of this determination is negative (N), it is the play mode and the routine returns to the routine of FIG. If the determination result of step 130 is affirmative (Y), it means the program mode, and the routine proceeds to step 132.

In step 132, a musical instrument chord representing the rhythm sound type corresponding to the operated pad operator is set in PDCODE. Then, the process proceeds to step 134.

In step 134, it is determined whether the role designation operator RLS is on, and if the determination result is affirmative (Y), step
At 136, RLSW is set to 1, and if negative (N), at step 138 RLSW is set to 0. Step 136
Alternatively, after step 138, the process proceeds to step 140.

At step 140, TRN is set to 0. And
Moving to step 142, the value of TRN is incremented by 1. After step 142, the process moves to step 144.

In step 144, RCODE rhythm codes M and T
Storage area PI specified by the track number of RN
Storage area PRLFL in which the CODE (M, TRN) musical instrument chord and the PDCODE musical instrument chord are equal and designated by the track numbers of the rhythm chords M and TRN
Whether the roll designation information of G (M, TRN) and the roll designation information of RLSW are equal (whether the rhythm sound type designated by this operation has already been assigned to the tracks corresponding to M and TRN)
judge. For example, when the desired pad operator is first operated after designating the program mode, PICODE
Since the value of (M, 1) is 0, the determination result of step 144 is negative (N), and the process proceeds to step 146.

In step 146, it is determined whether the value of TRN is larger than the value of the storage area PTNNUM (M) designated by the rhythm code M (the number of used tracks up to the present). At the time of the first pad operation, since the value of PTNNUM (M) is set to 0 in step 104 of FIG. 8 and TRN = 1, the determination result of step 146 becomes affirmative (Y), Move to 148.

In step 148, it is determined whether the value of TRN is larger than the maximum number 16 of usable tracks. This judgment result is positive (Y)
If so, the writing is not possible, and the routine returns to the routine of FIG.

If the determination result of step 148 is negative (N), it means that the data is writable, and the process proceeds to step 150.

In this step 150, the PDCODE instrument chord is set to P
The role designation information of RLSW is written in PRLFLG (M, TRN) in ICODE (M, TRN), and the channel number of TRN is written in PTNNUM (M). Then, the process proceeds to step 152.

At step 152, 1 is written in the memory cell PTN (M, TRN, TPCTR) specified by the channel number of the rhythm code M, TRN and the count value of TPCTR. The TPCTR is designed to perform counting operation not only during the play mode but also during the program mode as described later with reference to FIG.

By the way, if the second pad operation is performed after operating the first pad operator as in the above example, if the operated pad operator is the same as the first one, the determination in step 144 is made. The result is positive (Y), and the process moves to step 152. Then, in step 152, timing information is written in the same TRN = 1 track as in the previous time in the same manner as in the previous time.

In this case, assuming that a pad operator different from the first one is operated, or the same pad operator and roll designation operator as the first one are operated at the same time, step 144
Is negative (N), the process proceeds to step 146.

In step 146, TRN = 1, PTNNUM (M) =
Since it is 1, the determination result is negative (N), and the process returns to step 142. Then, in step 142, TRN is set to 2 and then the process proceeds to step 144.

In step 144, the storage area PICODE of the track 2
Since the information of (M, 2) and PRLFLG (M, 2) are both 0 (unallocated), the determination result is negative (N), and the process proceeds to step 146.

In step 146, TRN = 2, PTNNUM (M) =
Since it is 1, the determination result is affirmative (Y), and the routine moves to Step 150 via Step 148.

In step 150, a musical instrument chord and roll designation information are written in a track TRN = 2 different from the previous time in the same manner as the previous time, and 2 is written in PTNNUM (M).
After that, in step 152, timing information is written in the TRN = 2 track in the same manner as the previous time.

As another example, the PTN can be operated by several pad operations.
When NUM (M) is 5, the routine of FIG. 10 is entered in response to a new pad operation, and when step 146 is reached, TRN = 1 and PTNNUM (M) = 5.
The determination result of step 146 becomes negative (N), and the process returns to step 142. Then, the processes after step 142 are performed in the same manner as described above.

In this way, if there is no assigned track even after checking up to TRN = 5, the judgment result of step 144 becomes negative (N) after TRN becomes 6 in step 142. This is because no musical instrument chord is assigned to track 6 (PICODE (M, 6) = 0).

Thereafter, in step 146, TRN = 6, PTNNUM
Since (M) = 5, the determination result is affirmative (Y), and the process proceeds to step 150 via step 148. And
In steps 150 and 152, the writing process for TRN = 6 is performed in the same manner as described above.

Further, in the process of sequentially examining TRN = 2, 3, 4, 5 as described above, if it is found that the rhythm sound type related to the pad operation this time has been assigned to any track, At that time, the routine proceeds from step 144 to step 152, and the timing information writing process is performed for the track number of TRN at this time. For example, TRN = 4
If it is determined that the track No. is already allocated, the process moves from Step 144 to Step 152 at that time, and TRN = 4.
The timing information writing process is performed. In this case, the track with TRN = 5 is not checked.

According to the processing of steps 132 to 152 described above, each time the rhythm sound type is designated, it is determined whether the rhythm sound type is assigned to any track, and if there is an assigned track, the rhythm sound is assigned to that track. While the timing information related to the tone type is written, if there is no assigned track, the rhythm tone type is assigned to one of the unassigned tracks and the timing information associated with the rhythm tone type is written. Then, by repeating such processing, it becomes possible to write a desired rhythm pattern to the rhythm pattern program memory of FIG. 5 (A).

After step 152, the routine proceeds to step 154, where a sub-channel (CH) detection subroutine is executed as described later with reference to FIG. In this subroutine, the channel to which the musical instrument chord should be assigned is detected, and the channel number corresponding to that channel is set to ACH.
Then, the process proceeds to step 156.

At step 156, PICODE (M, ...) is added to the register ICODE (ACH) corresponding to the channel number of ACH.
(TRN) instrument chord and set the flag RLFLG (ACH) corresponding to the channel number of ACH.
The role designation information of PRLFLG (M, TRN) is set to. As a result, the specified rhythm sound type is assigned to the channel detected in step 154. When RLFLG (ACH) is set to 1,
A roll sound is automatically generated by the roll timer interrupt process of FIG. After step 156, the process moves to step 158.

In step 158, the truncate value corresponding to the instrument code of ICODE (ACH) is read from the truncate value memory of FIG. 3B and set in the counter TCTR (ACH) corresponding to the channel number of ACH. The truncate value of TCTR (ACH) is subsequently decremented by 1 by the truncate timer interrupt process of FIG.

Next, in step 160, the ICODE (ACH) musical instrument chord and the RLF are read from the volume value memory of FIG. 3 (C).
The volume value VLM corresponding to the roll designation information of LG (ACH) is read and set in the register VLM (ACH) corresponding to the channel number of ACH.

After that, in step 162, the register 4 of the rhythm TG 30 is used.
0,42,44,46, ACH channel number, IC
The instrument code of ODE (ACH), the volume value of VLM (ACH), and the key-on information KON are transmitted.
For this reason, in the rhythm TG30, the ICODE (AC
The rhythm sound signal corresponding to the rhythm sound type indicated by the instrument code H) is generated at the attack level corresponding to the volume value of VLM (ACH). Sixth after step 162
Return to the routine shown.

According to the processing of steps 154 to 162 described above, a rhythm sound corresponding to the rhythm sound type is generated by assigning the rhythm sound type to an appropriate channel each time the rhythm sound type is designated. Manual rhythm performance is possible. Therefore, the performer can program a desired rhythm pattern while listening to the manual rhythm sound played by the performer.

Assigned channel detection subroutine (FIG. 11) FIG. 11 shows an assigned channel detection subroutine.

In step 17, it is determined whether the rhythm sound type related to the allocation request has been allocated to any of channel 1 (CH1) to channel 8 (CH8). That is, the instrument code of the storage area PICODE (RCODE, TRN) specified by the rhythm code of RCODE and the track number of TRN, and the instrument code of the register ICODE (X) corresponding to the channel number X (one of 1 to 8). Coincides with each other and is designated by the rhythm code of RCODE and the track number of TRN, the storage area PRLFLG (RCO
DE, TRN) role designation information and channel number X
It is determined whether or not there is a channel X that matches the roll designation information of the flag RLFLG (X) corresponding to. If the result of this determination is negative (N), the step
If it is affirmative (Y), the process proceeds to step 174.

In step 172, if there is a TCTR (1) to TCTR (8) with a value of 0 (the one whose sound generation has ended), the channel number (CH number) corresponding to that value 0.
Into the ACH. If there is no value 0, TCT
The CH number corresponding to the one with the smallest value (the one with the most advanced attenuation) among R (1) to TCTR (8) is put in the ACH.

In step 174, the CH number X of the already assigned channel is put in the ACH. Step 172 or 174
After that, the process returns to the original routine (FIG. 10 or FIG. 13).

According to the routine of FIG. 11 described above, when a request for assigning a new rhythm tone type other than the one already assigned is made in a state where all 8 channels are occupied, this rhythm tone type is TCTR (1). Among the TCTR (8), the channel corresponding to the one having the smallest value is assigned, and the rhythm sound type is generated instead of the most attenuated rhythm sound type.

When the routine of FIG. 11 is used in the routine of FIG. 10, since the rhythm code of RCODE is M, in step 170, the instrument chord of PICODE (M, TRN) and the roll of PRLFLG (M, TRN) are rolled. The determination is made based on the designated information.

Pad sound generation processing during play mode (Fig. 12) In the routine shown in Fig. 10, nothing was done when it was determined to be the play mode in step 130, but it is possible to generate rhythm sounds based on pad operation during the play mode. Well, one example is shown in FIG.

If it is determined in step 130 in FIG. 10 that the mode is the play mode, the process proceeds to step 180 in FIG.

In step 180, the musical instrument chord representing the rhythm sound type corresponding to the operated pad operator PDS is set to P.
Set to DCODE. Then, the process proceeds to step 182.

At step 182, RLSW is set to 0. As described above, in this example, since the roll designation information is forcibly set to 0, no automatic roll sound is produced, but as described above with reference to FIG. 10, the operation of the roll designation operator RLS is detected and automatically performed. You may make it perform a roll sound.

Next, at step 184, the designated rhythm sound type is C
It is determined whether it has been assigned to any of H1 to CH8. In this judgment, PICODE (RCODE, TRN) and P
PDCODE instead of RLFLG (RCODE, TRN)
Step 170 of FIG. 11 except that E and RLSW are used.
Do the same as.

If the determination result of step 184 is negative (N), the process proceeds to step 186, and in the same manner as step 172 of FIG. 11, one of TCTR (1) to (8) having a value of 0 or 0 is If not, the CH number corresponding to the smallest value is put in ACH.

If the determination result in step 184 is affirmative (Y), the process moves to step 188, and the CH number X of the already assigned channel is put in the ACH.

After step 186 or 188, move to step 190
The instrument code of PDCODE and the roll designation information (0) of RLSW are written in ODE (ACH) and RLFLG (ACH), respectively. Then, the process proceeds to step 192.

In step 192, the truncate value corresponding to ICODE (ACE) is read from the truncate value memory and placed in TCTR (ACH) in the same manner as step 158 in FIG. Then, the process proceeds to step 194.

In step 194, ICODE (ACE) and RLF are read from the volume value memory in the same manner as step 160 in FIG.
Read the volume value corresponding to LG (ACE) to VL
Put in M (ACH). Then, the process proceeds to step 196.

In step 196, as in step 162 of FIG. 10, A
By sending the key-on information KON together with the contents of CH, ICODE (ACH) and VLM (ACH) to the rhythm TG 30, the ACH compatible channel can be used for ICODE.
A rhythm sound signal corresponding to (ACH) is generated at an attack level corresponding to VLM (ACH). After that, the process returns to the routine of FIG.

Tempo clock interrupt process (Fig. 13) Fig. 13 shows the flow of the tempo clock interrupt process. This interrupt process is started at each clock pulse of the tempo clock signal TCL.

In step 200, it is determined whether the START value is 1 (rhythm running). If the result of this determination is negative (N), it means that the rhythm has stopped, and the routine returns to the routine of FIG.

When the determination result of step 200 is affirmative (Y), the process proceeds to step 202 and TRN is set to 1. As described above, the processing from step 202 onward is executed in both the program mode and the play mode as long as START = 1. After step 202, the process moves to step 204.

In step 204, the memory cell PTN (RCOD) specified by the rhythm code of RCODE (selected rhythm), the track number of TRN, and the count value of TPCTR.
It is determined whether the information of E, TRN, TPCTR) is 1 (whether it is the timing of sound generation). If the determination result is affirmative (Y), the process proceeds to step 206.

In step 206, the assigned channel detection subroutine is executed as described above with reference to FIG. That is,
The channel to which the rhythm tone type to be generated is assigned is detected, and the CH number of that channel is entered in ACH.
Then, the process proceeds to step 208.

In step 208, the RCODE rhythm code and TR
Storage area PRLFLG specified by N track number
It is judged whether the information of (RCODE, TRN) is 1 (whether there is a roll designation), and if this judgment result is affirmative (Y), the routine proceeds to step 210.

At step 210, a value obtained by subtracting 1 from the value of TPCTR (previous tempo count value) is put into DTPCTR.
In this case, when the subtracted value becomes "-1", DT
Put "63" in PCTR. After step 210, the process moves to step 212.

In step 212, the memory cell PTN (RCODE, TRN, DTPCTR) corresponding to the previous tempo count value
Information of 1 is determined (whether it is the timing of sound generation). If the determination result is negative (N), the timing data of the selected rhythm is "0" as shown in FIG.
It has changed from "1" to "1".

When the process of step 212 is completed or when the determination result of step 208 is negative (N) (when it is a normal sound without the roll designation), the process proceeds to step 214. In this step 214, ICODE (ACH) and RLFLG
(ACH) to PICODE (RCODE, TR
N) instrument number and PRLFLG (RCODE, TR
N) Role designation information is set. When step 214 is reached through step 212, RLFLG (ACH)
Is set to 1.

Next, at step 216, the truncate value corresponding to ICODE (ACH) is read from the truncate value memory in the same manner as at step 158 of FIG. 10 and TCTR (ACH).
Put in. Then, the process proceeds to step 218.

In step 218, the ICODE (ACH) and RLF are read from the volume value memory in the same manner as step 160 in FIG.
Read the volume value corresponding to LG (ACH) to VL
Put in M (ACH). Then, the process proceeds to step 220.

In step 220, A is carried out in the same manner as step 162 in FIG.
By sending the key-on information KON together with the contents of CH, ICODE (ACH) and VLM (ACH) to the rhythm TG 30, the ACH compatible channel can be used for ICODE.
A rhythm sound signal corresponding to (ACH) is generated at an attack level corresponding to VLM (ACH).

When the operation reaches Step 220 via Step 212, the key-on pulse KONP is synchronized with the clock pulse of the tempo clock signal TCL when the timing data changes from "0" to "1" as shown in FIG. The first sound in the roll sound is generated in response to the generated pulse KONP. Then, after that, sequential sounds in the roll sound are generated by the roll timer interrupt processing of FIG. 16 independently of the tempo clock signal TCL. The generation cycle T of these sequential sounds is determined by the roll clock signal RCL.
It corresponds to the generation cycle of, and as an example, several tens [ms]
Is.

When the process of step 220 is completed or when the determination result of step 212 is affirmative (Y), the process proceeds to step 232. When the determination result of step 212 is affirmative (Y), the process proceeds to step 232 because "1" continues in the timing data as shown in FIG. This is because it is not necessary to perform the sounding process of ~ 220.

By the way, when the result of the determination in step 204 is negative (N) (when it is not the timing to pronounce),
Move to step 222. In this step 222, step 20
Similar to step 8, it is determined whether the information of PRLFLG (RCODE, TRN) is 1. If the result of this determination is negative (N), it is not necessary to perform the roll sound generation stop processing described below, so the routine moves to step 232.

If the determination result of step 222 is affirmative (Y), the process proceeds to step 224, and DT is performed in the same manner as step 210.
Set the previous tempo count value in PCTR. Then, the process proceeds to step 226.

In step 226, PTN (R
It is determined whether the value of CODE, TRN, DTPCTR) is 1. If the determination result is negative (N), it means that "0" is consecutive in the timing data, and the step
Move to 232.

If the determination result of step 226 is affirmative (Y), it means that the timing data has changed from "1" to "0" as shown in FIG. 14, and the process proceeds to step 228.

In step 228, the channel to which the roll sound has been assigned is detected and the CH number is added to the ACH in the same manner as in step 170 of FIG. Then, the process proceeds to step 230.

In step 230, 0 is set in RLFLG (ACH). As a result, the roll sound generation is stopped after the clock pulse of the tempo clock signal TCL when the timing data changes from "1" to "0" as shown in FIG. After step 230, the process moves to step 232.

At step 232, the value of TRN is incremented by 1. Then, the process proceeds to step 234, where the TRN value corresponds to the RCODE rhythm code (selected rhythm) in the storage area P.
It is determined whether the number is larger than the number of tracks of TNNUM (RCODE). If this determination result is negative (N), step 204
Then, the above-mentioned processing is repeated until TRN> PTNNUM (RCODE). For example, FIG. 3 (A)
When rhythm 1 is selected in the rhythm pattern memory of, since PTNNUM (1) = 16, the above processing is performed 16 times.

When TRN> PTNNUM (RCODE), the determination result of step 234 becomes affirmative (Y), and the routine proceeds to step 236. In this step 236, the tempo display element TLD is driven based on the value of TPCTR. That is, TPC
The display elements TLD1 to TLD4 (from the leftmost one to the rightmost one in the TLD of FIG. 1) are shown in FIG. 15 depending on whether the value of TR corresponds to 0, 8, 16, ... Lighting control. As a result, it is possible to display the tempo according to the set tempo. After step 236, the process moves to step 238.

In step 238, the value of TPCTR is incremented by 1. Then, the process proceeds to step 240 and the value of TPCTR is 64 (2
It is judged whether the bar is over or not, and if the result of this judgment is negative (N), the routine returns to the routine of FIG.

If the determination result in step 240 is affirmative (Y), TPCTR is set to 0 in step 242, and then
It returns to the routine of FIG. Therefore, the automatic rhythm performance can be continued by repeatedly using the rhythm pattern for two measures.

Roll Timer Interrupt Processing (FIG. 16) FIG. 16 shows the roll timer interrupt processing. This interrupt processing is started at each clock pulse of the roll clock signal RCL.

At step 250, it is judged whether the value of START is 1, and if the result of this judgment is negative (N), the routine returns to the routine of FIG.

When the determination result of step 250 is affirmative (Y), the process proceeds to step 252, and CHN is set to 1. As described above, the processes from step 252 are executed in both the program mode and the play mode as long as START = 1. After step 252, the process moves to step 254.

In step 254, it is determined whether the value of the flag RLFLG (CHN) corresponding to the channel number of CHN is 1 (whether a roll is designated). If the determination result is affirmative (Y), the process proceeds to step 256.

In step 256, the channel number of the CHN with the roll designation and the register ICODE (CHN) corresponding to the CHN
Musical instrument chords and CHN-compatible register VLM (CHN)
By sending the volume value and the key-on information KON of the channel to the rhythm TG 30 in the same manner as in step 162 of FIG. 10, the channel corresponding to CHN is ICODE (CHN).
A corresponding rhythm sound signal is generated at an attack level corresponding to VLM (CHN) (about half the level of a normal sound).

When the process of step 256 is completed or when the determination result of step 254 is negative (N) (when there is no role designation), the process proceeds to step 258.

At step 258, the value of CHN is incremented by 1. Then, the process proceeds to step 260, where the value of CHN is 8 channels.
Determine if greater. If this determination result is negative (N), the process returns to step 254, and the above processing is repeated until CHN> 8. In this way, the presence or absence of roll designation is checked for each channel, and if there is roll designation, a rhythm sound is generated.

When CHN> 8, the determination result of step 260 becomes affirmative (Y), and the process returns to the routine of FIG.

According to the roll timer interrupt process described above, since the roll sound is generated according to the roll clock signal RCL that is independent of the tempo clock signal TCL, the roll sound generation time interval does not change even if the tempo is changed. Moreover, the roll sound generation time interval can be arbitrarily set regardless of the tempo.

Truncate timer interrupt process (Fig. 17) Fig. 17 shows the truncate timer interrupt process.
This interrupt process is started for each clock pulse of the truncation clock signal KCL.

At step 270, it is determined whether the value of START is 1, and if the result of this determination is negative (N), the routine returns to the routine of FIG.

If the determination result of step 270 is affirmative (Y), the process proceeds to step 272, and CHN is set to 1.
In this way, the processing from step 272 onward is performed by START =
As long as it is 1, it is executed in both the program mode and the play mode. After step 272, the process moves to step 274.

In step 274, it is determined whether the value of the counter TCTR (CHN) corresponding to the channel number of CHN is 0 (whether the sound generation ends). If the determination result is negative (N), the process proceeds to step 276, and the value obtained by subtracting 1 from the value of TCTR (CHN) is set in TCTR (CHN).

When the process of step 276 is completed or when the determination result of step 274 is affirmative (Y) (when the sound generation is completed), the process proceeds to step 278.

At step 278, the value of CHN is incremented by 1. Then, the process proceeds to step 280, where the value of CHN is 8 channels.
Determine if greater. If this determination result is negative (N), the process returns to step 254, and the above processing is repeated until CHN> 8. In this way T for each channel
Check if CTR (CHN) = 0 and if not 0, TCTR
Decrease the value of (CHN) by 1.

When CHN> 8, the determination result of step 280 becomes affirmative (Y), and the process returns to the routine of FIG.

The method of truncation is not limited to the one described above, and for example, (a) decrements by 1 at each tempo clock interrupt (however, the time until reaching 0 depends on the tempo), (b)
Decrement by 1 each time there is a new pronunciation assignment, (c) Set a smaller truncation value for longer decay times, add 1 at each interruption, and add a new rhythm sound type to the channel with the maximum addition result. There are methods such as allocation.

Modifications The present invention is not limited to the above embodiments, but can be implemented in various modified forms. For example, the following changes are possible.

(1) Although the example of controlling by software has been shown, the processing may be performed by dedicated hardware.

(2) For the rhythm tone generator, the example of the PCM waveform memory system is shown, but the sound source system is not limited to this, and an FM sound source system or the like can be used as appropriate. Further, the sound source configuration may be parallel to a plurality of channels instead of the time division processing of a plurality of channels.

(3) Although an example of an electronic musical instrument with a keyboard is shown, a dedicated rhythm playing device may be used.

(4) The channel allocation method was the last-arrival priority method, but when rhythm sounds are assigned to all channels, the first-arrival priority method that does not assign new rhythm sounds even if a new rhythm sound allocation request is made May be Further, there are various truncation methods other than those described above.

(5) Although the example in which the musical instrument chord is transmitted to the rhythm tone generator has been shown, musical tone parameter information (for example, FM sound source control parameter information) necessary for obtaining a desired musical instrument sound may be transmitted.

[Effects of the Invention] As described above, according to the present invention, the rhythm sound type designation information is stored or generated by a manual operation and read corresponding to a plurality of rhythm sound types that are larger than the number of rhythm sound source channels. Since the rhythm sound signal is generated by assigning the rhythm sound type designation information or the rhythm sound type designation information based on the operation to any rhythm sound source channel, it is possible to combine many kinds of rhythm sounds over time even with a small number of channels. The effect is that you can enjoy a variety of rhythm performances.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an electronic musical instrument according to an embodiment of the present invention, FIG. 2 is a block diagram showing a configuration of a rhythm tone generator 30, and FIG. 3 is a diagram showing contents stored in a ROM 18. 4, FIG. 4 is a diagram showing an example of timing data, FIG. 5 is a diagram showing contents stored in the RAM 20, FIG. 6 is a flowchart showing a main routine, and FIG. 7 is a flowchart showing a rhythm selection subroutine. , FIG. 8 is a flow chart showing a mode selection subroutine, FIG. 9 is a flow chart showing a start / stop subroutine, FIG. 10 is a flow chart showing a pad operation subroutine, and FIG. FIG. 12 is a flowchart showing a subroutine, FIG. 12 is a flowchart showing a pad sounding process in the play mode, and FIG. FIG. 14 is a signal waveform diagram for explaining the roll sounding operation, FIG. 15 is a diagram for explaining the tempo display operation, and FIG. 16 is a roll timer interrupt processing. FIG. 17 is a flowchart showing a truncate timer interrupt process. 10 ... Data bus, 14 ... Panel device, 16 ... Central processing unit, 18 ... Program and data ROM, 20 ... Data and working RAM, 22 ... Tempo timer, 24 ...
Roll timer, 26 …… Truncate timer, 30 …… Rhythm tone generator.

Claims (2)

[Claims] 1. A sound source means having a plurality of rhythm sound source channels, wherein each rhythm sound source channel is capable of generating a rhythm sound signal corresponding to a designated rhythm sound type. b) A memory for storing a plurality of rhythm sound type designation information corresponding to a plurality of rhythm sound types larger than the number of the rhythm sound source channels with respect to the rhythm to be played, and timing information for instructing sounding timing for each rhythm sound type. Means, (c) means for generating a tempo clock signal, and (d) corresponding to each rhythm sound type at each sounding timing based on the tempo clock signal and the timing information of the storage means. Reading means for reading the specified rhythm sound type designation information from the storage means; and (e) rhythm sound type designation read from the storage means. By assigning the rhythm sound type designation information to any of the plurality of rhythm sound source channels according to information, the rhythm sound type corresponding to the rhythm sound type designation information is designated in the rhythm sound source channel related to the assignment A rhythm playing device having an assigning means for generating a rhythm sound signal corresponding to a sound type. 2. A sound source means having a plurality of rhythm sound source channels, wherein each rhythm sound source channel is capable of generating a rhythm sound signal corresponding to a designated rhythm sound type. b) a plurality of rhythm performance operators each corresponding to a plurality of rhythm sound types greater than the number of rhythm sound source channels; and (c) a rhythm related to the operation each time one of the plurality of rhythm performance operators is operated. Information generating means for generating rhythm sound type designation information for designating a rhythm sound type corresponding to a performance operator; and (d) a plurality of rhythm sound source channels according to the rhythm sound type designation information generated by the information generating means. By assigning the rhythm sound type designation information to any of the Specified by rhythm performance apparatus and a assigning means for generating a rhythm tone signal corresponding to said rhythm tone kinds.