JPH0782334B2 - Electronic musical instrument - Google Patents

Description

TECHNICAL FIELD The present invention relates to an electronic musical instrument in which an arbitrary pitch can be assigned to each key of a keyboard.

[Summary of the Invention] The present invention is provided with a storage unit for storing pitch control information for each key of the keyboard, and any of the adjustment modes of coarse adjustment or fine adjustment depending on the operation of the operator for each storage unit. By making the pitch control information rewritable, the pitch allocation for each key can be performed accurately and quickly.

[Prior Art] Conventionally, a keyboard-type electronic musical instrument capable of pitch adjustment for each pitch name is known (see, for example, Japanese Patent Laid-Open No. 60-178493). In this electronic musical instrument, the pitch of the note name can be increased / decreased by, for example, 0.1 cent by operating the up / down operator corresponding to an arbitrary note name.

[Problems to be Solved by the Invention] According to the above-described conventional electronic musical instrument, since the pitch is adjusted for each note name, when the key range of the keyboard spans multiple octaves, the note name is the same but the octave is different. The pitch changes for the key to be the same. Therefore, it is not possible to satisfy the demand for allocating an arbitrary pitch to each key and enjoying a variety of performances.

The change in pitch is a minute value such as 0.1 cent, and it takes a considerable amount of time and labor to obtain a pitch rise (or fall) of a semitone (100 cents), for example. To reduce such time and labor, the pitch change is
A large value such as cents may be considered, but this makes precise pitch setting impossible.

[Means for Solving Problems] An object of the present invention is to provide a novel keyboard type electronic musical instrument which solves the above problems.

The electronic musical instrument according to the present invention includes a keyboard having a large number of keys more than one octave and a plurality of pitch control information corresponding to a large number of keys of the keyboard as one set of such pitch control information. A first storage means for storing a plurality of sets, and a selective reading means for selecting and reading any one set of pitch control information from the plurality of sets of pitch control information stored in the first storage means. A second storage unit having a plurality of storage units respectively corresponding to the plurality of keys of the keyboard, wherein one set of pitch control information read by the selective reading unit is stored in the plurality of keys of the keyboard. Any one of the one stored in the plurality of storage units in the correspondence relation, the input operation unit capable of the rough adjustment operation and the fine adjustment operation, and the keyboard or the other key designation unit in the plurality of storage units. The key specified by Rewriting means for rewriting the pitch control information in the storage section according to the operation of the input operating means, wherein the sound is changed in accordance with a relatively large pitch change corresponding to the coarse adjustment operation by the input operating means. By rewriting the treble control information and rewriting the treble control information according to a relatively small pitch change corresponding to the fine adjustment operation by the input operation means, either by the keyboard or another key designating means. Display means for displaying the key name of the designated key and for displaying the pitch corresponding to the pitch control information of the storage section corresponding to the key among the plurality of storage sections; and the key pressed on the keyboard. A control means for controlling the pitch of the tone signal generated in correspondence with the above-mentioned key based on the pitch control information of the storage section corresponding to the pressed key among the plurality of storage sections. .

[Operation] According to the configuration of the present invention, one set of pitch control information among the plurality of sets of pitch control information stored in the first storage unit is read by the selective reading unit, and the second storage unit. Are stored in a large number of storage units in a corresponding relationship with a large number of keys on the keyboard. In this state, an arbitrary key is designated by the keyboard or other key designating means, and the pitch control information in the storage section corresponding to the designated key is operated while the coarse adjustment or the fine adjustment operation of the input operation means is performed while observing the display of the display means. Can be rewritten significantly or slightly, and the pitch of the key-depressing sound can be controlled according to the rewriting result.

In this case, the pitch control information is rewritten corresponding to a relatively large pitch change amount in accordance with the rough adjustment operation, so that, for example, a pitch rise (or fall) of a semitone can be obtained instantaneously. Further, the pitch control information is rewritten corresponding to a relatively small pitch change according to the fine adjustment operation,
For example, it is possible to finely adjust the pitch in units of cents. Furthermore, if the pitch adjustment of coarse and fine is used together as described above, a pitch rise (or fall) corresponding to, for example, one semitone plus one cent can be quickly obtained.

[Embodiment] FIG. 1 shows a circuit configuration of an electronic musical instrument according to an embodiment of the present invention. In this electronic musical instrument, a pitch curve, tone color setting, musical tone generation, etc. are controlled by a microcomputer. It has become.

Circuit configuration (Fig. 1) Bus 10 has keyboard 12, panel operation unit 14, central processing unit (CPU) 16, program memory 18, data working memory 20, data memory 22, tone generator (TG).
24 and 26, an external storage unit 30 and the like are connected.

The keyboard 12 has, for example, 61 keys, and key operation information is detected for each key.

The panel operation unit 14 is a micro tuning operation unit MOP,
It includes a tone color parameter editing operator group TOP and other operators, and operation information is detected for each operator. Micro tuning operation unit MOP
Is used for setting the pitch curve and tone color, and will be described later in detail with reference to FIG.

The CPU 16 executes various processes for pitch curve setting, tone color setting, tone generation, etc. according to a program stored in a program memory 18 including a ROM (Read Only Memory). Figures 13 to 13 will be described later.

The data working memory 20 is composed of a RAM (Random Access Memory), and includes a large number of storage blocks used as registers, flags, etc. in various processes by the CPU 16. Registers related to the implementation of the present invention will be described later with reference to FIG.

The data memory 22 is composed of a ROM, in which frequency control data for all keys and tone color parameter data for 64 tones are stored for each scale such as equal temperament and pure tone. The arrangement of storage blocks in the memory 22 will be described later with reference to FIG.

Both TG24 and 26 have multiple sound generation channels (sound sources)
The tone signal generated from each tone generation channel is supplied to the sound system 28 and converted into sound. The plurality of sound generation channels in each tone generator may have either a time division structure or a space division structure.
As an example, in the case where eight tone generation channels are provided for each tone generator, if two tones are simultaneously produced for each key, a maximum of eight keys of musical tone (a total of 16 tones) can be produced simultaneously.

The external storage unit 30 is composed of a RAM, a floppy disk, or the like, and is used to initially set or store various musical tone control data.

Micro tuning operation part MOP (Fig. 2) Fig. 2 shows the arrangement of operators and indicators in the micro tuning operation part MOP. The operation part MOP includes a mode selection switch group MSS, a voice selection switch group VS, A memory selection switch group MS, a display DP, an increment switch IS, a decrement switch DS, a cursor movement switch CSR, CSL and the like are provided.

The mode selection switch group MSS includes a voice mode selection switch VOICE and a micro tuning mode selection switch M.
C, micro tuning edit mode selection switch MCED, store mode selection switch STORE are included.

The voice selection switch group VS includes ten voice selection switches V1 to V10 corresponding to the voice numbers 1 to 10, respectively. When the voice mode is selected by turning on the switch VOICE, any voice number can be selected by turning on any of the switches V1 to V10. When a desired voice number is selected, a set of voice-related data is read from the voice register corresponding to the selected voice number in the memory 20, and a tone is generated or the read data is read based on the read data. It can be partially modified.

Further, when the switch STORE is turned on to select the store mode, any voice number can be selected by turning on any one of the switches V1 to V10. When the desired voice number is selected, a set of voice related data is written in the voice register in memory 20 corresponding to the selected voice number. The set of voice-related data written in this case is used for generating the subsequent musical tone read as described above, or is appropriately modified.

One set of voice-related data stored for each voice register is tone color data for the TG24, micro tuning on / off data for the TG24, tone color data for the TG26, and timbre number data for the TG26. It consists of microphone tuning on / off data and scale number data.

The tone color number data represents a tone color number corresponding to a specific instrument tone color such as flute and violin. In this embodiment, the timbre number is any of 1-64.

The scale number data represents the scale number corresponding to a specific scale. In this embodiment, the scale number is 1.
It is one of ~ 12. The scale numbers 1 to 4 correspond to the four types of scales in which the frequency control data are factory-set. For example, 1 is a pure scale, 2 is an equal scale, 3 is a Pythagorean scale, and 4 is a mean tone scale. Represent each. The scale numbers 5 to 12 respectively correspond to eight types of scales that can be set by the user.

The micro-tuning on / off data indicates a micro-tuning on when 1 and a micro-tuning off when 0. Here, "micro tuning on" means to use the scale specified by the scale number data in the associated tone generator. Also, "microtuning off" means using equal temperament in the associated tone generator.

The memory selection switch group MS includes eight memory selection switches M5 to M12 corresponding to the scale numbers 5 to 12, respectively. When the switch STORE is turned on to select the store mode, any of the scale numbers 5 to 12 can be selected by turning on any of the switches M5 to M12. When a desired scale number is selected, frequency control data for all keys is written in the scale register in the memory 20 corresponding to the selected scale number. The frequency control data for all keys written in this case is actually used to generate a musical tone or is appropriately modified.

The display device DP is composed of, for example, a liquid crystal display device, on which the set amount and the like are displayed in association with the mode selection. A display example related to mode selection will be described later with reference to FIG.

The increment switch IS is used for increasing the displayed numerical value and commanding the micro tuning on. Further, the decrement switch DS is used for decreasing the displayed numerical value and commanding micro tuning off.

The cursor movement switches CSR and CSL are used to move the cursor on the display surface. The CSR is for right movement and the CSL is for left movement.

Display example (Fig. 3) Figs. 3 (A) to (E) are display devices in various modes.
It shows a display example of DP.

FIG. 3 (A) shows a display example when an arbitrary voice selection switch V (n) is turned on after the switch VOICE is turned on to select the voice mode. In this case, the display unit DP displays the voice number n or the corresponding voice name, the letters "A" and "B" are displayed on the right side thereof, and the TG24 of the TG24 is displayed below "A". A tone color number for determining a tone color is displayed, and a tone color number for determining a tone color of TG26 is displayed below "B". The tone color number at this time is specified by the tone color number data for each tone generator contained in the group of voice-related data read from the voice register at the time of voice selection as described above.

The tone color number displayed below either "A" or "B" can be arbitrarily changed by placing the cursor CS on it and turning on the switch IS or DS. In this embodiment, any of the tone color numbers 1 to 64 can be selected.

FIG. 3B shows a display example when the switch MC is turned on to select the micro tuning mode. Normally, after selecting a desired voice as described in FIG. 3 (A), the micro tuning mode is selected. In this case, the scale number is displayed on the display device DP and the scale name corresponding to the scale number is displayed.
The scale number at this time is designated by the scale number data included in the group of voice-related data read from the voice register at the time of voice selection as described above.

The letters “A” and “B” are displayed on the right side of the scale name display, and “ON” or “OFF” indicating that micro tuning is on or off for the TG24 is displayed below “A”. Similarly, "ON" or "OFF" is displayed below the "B" for the TG26. Micro-tuning on / off at this time also depends on the micro-tuning on / off data for each tone generator included in the group of voice-related data read from the voice register at the time of voice selection as described above. It is specified.

The displayed scale number and scale name can be arbitrarily changed by placing the cursor CS on them and turning on the switch IS or DS.

Furthermore, "ON" or "OFF" displayed below either the letter "A" or "B" can be arbitrarily changed by pointing the cursor CS to this and turning on the switch IS or DS. is there. That is, in this embodiment, the following four types of micro tuning on / off can be set.

(1) Micro tuning on for both TG24 and 26 ("A" = "ON", "B" = "ON") In this case, both TG24 and TG26 correspond to the displayed scale number. Musical tones can be generated according to a musical scale (for example, a pure articulation scale).

(2) For TG24, micro tuning is on and
Micro tuning off for TG26 (“A” =
In this case, the TG24 can generate musical tones according to the scale corresponding to the displayed musical scale number, and the TG26 can generate musical tones according to the average temperament.

(3) For TG24, micro tuning is off and
For the TG26, Micro Tuning On (“A” =
"OFF", "B" = "ON") In this case, contrary to the case of (2) above, the TG24 is in the equal temperament scale, and the TG26 is in the scale corresponding to the displayed scale number.

(4) Micro tuning on for both TG24 and 26 (“A” = “OFF”, “B” = “OFF”) In this case, both TG24 and TG26 are in the equal tempered scale.

Therefore, a variety of performances can be performed by arbitrarily selecting the setting modes (1) to (4).

FIG. 3C shows a display example when the pitch correction operation is performed after the switch MCED is turned on to select the microtuning edit mode. The pitch correction operation is performed on the scale corresponding to the scale number after the desired scale number is displayed as described in FIG. 3 (B). Switch MC before entering pitch correction
When only ED is turned on, the display DP shows "Micro tuning edit mode", "COARCE" and "FI
Each character "NE" is displayed, and 0 is displayed as the numerical value. Here, "COARCE" represents coarse adjustment and "FINE" represents fine adjustment. Then, if you specify the key whose pitch you want to change,
The pitch of the key is displayed like "F3". In this embodiment, the keyboard 12 is used as a means for designating a key whose pitch is to be changed without providing a special operator, and the key is changed on the keyboard 12 by turning on the key. There is.

After that, by moving the cursor CS to "COARCE" and selecting coarse adjustment, and then turning on the switch IS or DS, the pitch of the key can be changed in semitone units (one by one as a key code value), The changed pitch is displayed as "G3" on the display device DP.

In addition, the pitch of the key can be changed in cents by turning the switch IS or DS by moving the cursor CS to "FINE" and selecting the fine adjustment. Is displayed with a plus or minus sign.

If the pitch can be changed with "COARCE" and "FINE" in this way, the pitch can be set accurately and quickly.

In this embodiment, the switches IS and DS are commonly used for the coarse adjustment operation and the fine adjustment operation, and the number of operators is selected by selecting with the cursor CS which switch is to be used for coarse adjustment or fine adjustment. Is decreasing.

When the pitch is changed with either "COARCE" or "FINE", the absolute value of the cent based on the lowest note of the keyboard is displayed in the bracket on the right side of the cent value display on the display DP. To be done.

FIG. 3D shows a display example when the memory STORE is turned on to select the store mode and then the arbitrary memory selection switch M (m) is turned on. In this case, the characters "micro tuning", the arrow pointing to the right, and the character "memory (m) store" are displayed side by side on the display device DP from left to right. This is the scale number m in the memory 20.
It indicates that frequency control data for all keys (for example, pitch-corrected as described in FIG. 3C) is written in the scale register corresponding to.

FIG. 3 (E) shows a display example when an arbitrary voice selection switch V (n) is turned on after the switch STORE is turned on to select the store mode. In this case, on the display DP, the letters "Voice", the arrow pointing to the right,
The characters “memory (n) store” are displayed side by side from left to right. This is because a group of voice-related data (for example, the contents whose contents have been modified as described in FIGS. 3A and 3B) are written in the voice register corresponding to the scale number n in the memory 20. It indicates that.

Arrangement of Registers in Memory 20 (FIG. 4) FIG. 4 shows the registers in the data working memory 20 which are relevant to the implementation of the present invention. The contents stored in each register are as follows.

(1) Key code register KCODE This is the one in which the key code corresponding to the key having a key event (co-on or key-off) is set.

(2) Voice mode flag VCFLG This is set to 1 when the switch VOICE is turned on.

(3) Voice number register VCNO This is for setting the voice number selected by any of the switches V1 to V10 in the voice mode.

(4) First and second tone color number registers TCNO1 and TCN
O2 Of these registers, TCNO1 stores the tone color data for the TG24, and TCNO2 stores the tone color data for the TG26.

(5) First and second micro tuning on / off registers MCON1 and MCON2 Among these registers, MCON1 is for storing micro tuning on / off data for TG24, and MCON2 is for TG26. Micro tuning on / off data is stored.

(7) Scale number register MCNO This is a scale number set in the voice mode or the micro tuning mode.

(8) Micro tuning edit mode flag MC
EDFLG This is set to 1 when the switch MCED is turned on.

(9) Micro tuning key register MCEDKY This is a key code that corresponds to the key that has been turned on in the micro tuning edit mode.

(10) First edit register MCCOS This is the one to set the key code corresponding to the key pressed in the micro tuning edit mode. The set key code can be changed one by one based on the operation of the switch IS or DS when “COARCE” is selected.

(11) Second edit register MCFINE This is a pitch change amount set based on the operation of the switch IS or DS when "FINE" is selected in the micro tuning edit mode.

(12) Micro tuning mode flag MCFLG This is set to 1 when the switch MC is turned on.

(13) First and second tone color parameter buffer registers
TCPB1 and TCPB2 Of these registers, TCPB1 stores the tone color parameter data to be supplied to the TG24, and TCPB2
Stores the tone color parameter data to be supplied to the TG26.

(14) Scale buffer register MCBUF This stores the frequency control data for all keys for the scale corresponding to the scale number set in the register MCNO.

(15) Scale registers MCMEM (5) to MCMEM (12) These registers correspond to eight types of scales that can be set by the user, and each register can store frequency control data for all keys. . The frequency control data read from the external storage unit 30 when the power is turned on may be initially set in these registers.

(16) Voice registers VCMEM (1) to VCMEM (10) These registers are voice numbers 1 to 10 (switch V1
~ N10), each group can store a group of voice-related data as described above. Voice-related data read from the external storage unit 30 when the power is turned on may be initially set in these registers.

As registers other than the above, there are registers for sound allocation, registers for timbre parameter editing, etc., but not shown.

Storage Block Arrangement in Memory 22 (FIG. 5) FIG. 5 shows a large number of storage blocks in the data memory 22 which are relevant to the implementation of the present invention. The storage contents of each storage block are as follows.

(1) Equal temperament storage block FNMEM This is a block in which frequency control data for all keys is stored according to the equal temperament scale. The data in this storage block is used when a musical tone is generated from the tone generator set to micro tuning off. In this recording block, frequency control data for 12 note names, not for all keys, is stored, and the frequency control data of the note name corresponding to each key is read out and converted into one corresponding to the key pitch. You may do it.

(2) Scale memory block MCMEM (1) to MCMEM (4) Among these memory blocks, MCMEM (1) is a pure articulatory scale, MCMEM (2) is an equal temperament scale, and MCMEM (3) is a Pythagoras scale. , MCMEM (4) correspond to mean tone scales, respectively, and store frequency control data for all keys according to the scale corresponding to each memory block. Of the memory blocks MCMEM (1) to MCMEM (4) and the above-mentioned registers MCMEM (5) to MCMEM (12), the register MCBUF is stored in the register MCBUF.
It is frequency control data for all keys read from the one corresponding to the scale number of MCNO.

(3) Tone parameter storage block TCP This stores tone parameter data for 64 tones. The tone color parameter data corresponding to the tone color number is read from this storage block.

Main Routine (Fig. 6) In the main routine of Fig. 6, in step 40, key scan processing is performed, and if there is a key-on event,
A key-on subroutine, which will be described later with reference to FIG. 13, is executed, and if there is a key-off event, a key-off subroutine (not shown) is executed.

Next, in step 42, a micro tuning operator scanning process is performed. In this case, if there is an ON event of the switch VOICE, the subroutine of FIG. 7 is executed, and if there is an ON event of any voice selection switch V (n), the subroutine of FIG. 8 is executed, and the ON event of the switch MC is If there is, execute the subroutine in Fig. 9 and switch
If there is an on event of MCED, the subroutine of FIG. 10 is executed. If there is an on event of switch IS, the subroutine of FIG. 11 is executed, and if there is an on event of switch DS.
Execute the DS ON subroutine (not shown), and if there is an ON event of any memory selection switch M (m), the 12th
Execute the subroutine shown.

Next, in step 44, a tone color parameter editing operator scanning process is performed. In this case, for example TG24 or 26
At the time of operating the operator related to, tone color parameter edit processing such as changing the contents of TCPB1 or TCPB2 according to the operation is performed.

After that, in step 46, the scan processing of other operators is performed, and if there is an operated operator, the necessary processing is performed according to the operation. Then, the process returns to step 40, and the above series of processing is repeated.

VOICE ON subroutine (Fig. 7) Step 5 in the VOICE ON subroutine of Fig. 7
At 0, VCFLG is set to 1 and other flags are set to 0.
Then, the process proceeds to step 52.

In step 52, the display DP is displayed as "voice mode". After that, the process returns to the routine of FIG.

V (n) ON Subroutine (8) In the V (n) ON subroutine of FIG. 8, in step 60, it is determined whether VCFLG is 1. If the result of this judgment is affirmative (Y), the routine proceeds to step 62, where the voice number n corresponding to the switch turned on in VCNO is set. Then, the process proceeds to step 64.

At step 64, VCMEM corresponding to the voice number n
From (n), a group of voice-related data is read out, the tone color data of the TG24 is TCNO1, and the tone color data of the TG26 is T.
Micro tuning on / off data of TG24 is put in MCON1, micro tuning on / off data of TG26 is put in MCON2, and scale number data is put in MCNO. Then, the process proceeds to step 66.

In step 66, the voice name and the tone color number of each tone generator are displayed on the display DP based on the data of VCNO, TCNO1 and TCNO2 as shown in FIG. Then, the process proceeds to step 68.

In step 68, the tone color parameter data corresponding to the tone color number of TCNO1 is read from TCP and sent to TG24 via TCPB1. Similarly, the tone color parameter data corresponding to the tone color number of TCNO2 is read out from TCP and sent to TG26 via TCPB2. As a result, the timbre is set for TGs 24 and 26. After this, the process proceeds to step 70.

At step 70, MCMEM corresponding to the scale number of MCNO
Read the frequency control data for all keys from (register or storage block) and write to MCBUF. Then, the process returns to the routine of FIG.

If the determination result of step 60 is negative (N),
In step 72, it is determined whether STORE is on. And
If it is not ON (N), the routine returns to the routine of FIG.

If the determination result of step 72 is affirmative (Y), the process proceeds to step 74. In this step 74, TCNO1, TCNO2, MCON
1. Write the contents of MCON2 and MCNO to the corresponding storage areas in VCMEM (n). Then, the process proceeds to step 76.

In step 76, the display DP is caused to display as shown in FIG. After that, the process returns to the routine of FIG.

MC ON Subroutine (FIG. 9) In the MC ON subroutine of FIG. 9, in step 80, MCFLG is set to 1 and the other flags are set to 0. Then, the process proceeds to step 82.

In step 82, the scale number, scale name, and micro tuning on / off for each tone generator are displayed on the display DP based on MCNO, MCON1 and MCON2 as shown in FIG. 3 (B). After that, the process returns to the routine of FIG.

MCED ON subroutine (Fig. 10) In the MCED ON subroutine of Fig. 10, step 90
Then, 1 is set in MCEDFLG and other flags are set to 0. Then, the process proceeds to step 92.

In step 92, the display DP is caused to display as shown in FIG. However, the pitch is not displayed and the numerical value is displayed as 0. After that, the process returns to the routine of FIG.

IS ON subroutine (Fig. 11) In the IS ON subroutine of Fig. 11, step 100
Then, it is determined which flag is 1.

If VCFLG is 1, the process proceeds to step 102. In this step 102, it is determined whether the cursor CS is in the position "A" or "B" in the display state as shown in FIG. If the result of this determination is "A", the routine moves to step 104.

At step 104, the value of TCNO1 is incremented by 1. And
Moving to step 106, the timbre parameter data corresponding to the timbre number of TCNO1 is read from TCP, and TG24 is sent via TCPB1.
Send to. As a result, the timbre of TG24 is changed to a new timbre corresponding to the timbre number set in step 104. After this, the process proceeds to step 108.

In step 108, a new tone color number is displayed below "A" as shown in FIG. 3 (A) based on TCNO1. And
It returns to the routine of FIG.

If the result of determination in step 102 is “B”, the process proceeds to step 110. In this step 110, TCNO2, TCPB
2. With respect to TG26, the same processing as steps 104, 106 and 108 is performed. As a result, the timbre of TG26 is changed to a new timbre, and a new timbre number is displayed below "B" as shown in FIG. 3 (A).

If MCFLG is 1 as a result of the determination in step 100,
Go to step 112. In this step 112, it is determined whether the cursor CS is in the "scale name", "A" or "B" in the display state as shown in FIG. 3 (B). If the result of this determination is "scale name", step
Move to 114.

At step 114, the value of MCNO is incremented by 1. And
Moving to step 116, MCMEM corresponding to the scale number of MCNO
The frequency control data for all keys is read from (register or storage block) and placed in MCBUF. After this, step 1
Go to 18.

In step 118, a new scale number and scale name are displayed based on the MCNO as shown in FIG. 3 (B). Then, the process returns to the routine of FIG.

If the result of determination in step 112 is "A", the flow moves to step 120 and 1 is set in MCON1. Then, the process proceeds to step 122.

In step 122, "ON" is displayed below "A" based on MCON1 as shown in FIG. 3 (B). After that, the process returns to the routine of FIG.

If the result of determination in step 112 is “B”, the process proceeds to step 124. In this step 124, MCON2 is processed in the same manner as steps 120 and 122. As a result, the third
In the figure (B), "ON" is displayed below "B".
After that, the process returns to the routine of FIG.

If MCEDFLG is 1 as a result of the determination in step 100, the process proceeds to step 126. In this step 126, the cursor CS indicates "COARC" in the display state as shown in FIG. 3 (C).
It is determined whether the position is “E” or “FINE”. If the result of this determination is "COARCE", step 12
Move to 8 and increase the value of MCCOS by 1. This 1-up is
Corresponds to a semitone pitch increase.

Next, in step 130, FIG. 3 (C) is based on MCCOS.
A new pitch is displayed at the position of "G3". For example, “F3” is displayed before IS is turned on, and when IS is turned on, step 13
When it reaches 0, "F # 3" is displayed. After this, the process proceeds to step 132.

In step 132, new frequency control data corresponding to the contents of MCCOS and MCFINE is calculated, and the value is calculated as MCE in MCBUF.
Write to the storage area corresponding to DKY. As a result, a new pitch is set for the key corresponding to the MCEDKY key code. After this, the process proceeds to step 134.

In step 134, the absolute value of the cent corresponding to the value calculated in step 132 is obtained and displayed in parentheses as shown in FIG. 3 (C). Then, the process returns to the routine of FIG.

If the result of determination in step 126 is “FINE”,
Moving to step 136, the value of MCFINE is incremented by 1. This 1-up corresponds to a pitch increase of 1 cent.

Next, at step 138, the new cent value is displayed together with the sign (+) as shown in FIG. 3 (C) based on the MCFINE.

Thereafter, steps 132 and 134 are sequentially executed as described above, and then the process returns to the routine of FIG. As a result, the pitch of the key corresponding to the MCEDKY key code is "FI
The IS on operation when “NE” is selected will be decided by taking into account the calculation, and the absolute value display of cents also reflects the IS on operation.

If the result of determination in step 100 is that the other flags are 1, other processing is executed in step 140 and then the routine returns to the routine of FIG.

Although not shown in FIG. 11, TCNO1, TCNO2, MCN
O, MCCOS, MCFINE, etc. should reach the maximum value defined for each (eg 64 for TCNO1, TCNO2) and then return to the minimum value defined for each (eg 1 for TCNO1, TCNO2). Has become.

In addition, the switch DS ON subroutine has only to make a change to the routine of FIG. 11 such that the values of TCNO1, TCNO2, MCNO, MCCOS and MCFINE are each decreased by 1 and MCON1 and MCON2 are set to 0 respectively. Since it can be easily realized with, the illustration is omitted.

M (m) ON Subroutine (FIG. 12) In the M (m) ON subroutine of FIG. 12, in step 150, STORE ON is determined. If the determination result is negative (N), the process returns to the routine of FIG.

When the determination result of step 150 is affirmative (Y), the process proceeds to step 152, and the contents of MCBUF (frequency control data for all keys) are stored in MCMEM (register) corresponding to the scale number m. Then, the process proceeds to step 154.

In step 154, the display DP is caused to display as shown in FIG. Then, the process returns to the routine of FIG.

Key-on subroutine (Fig. 13) In the 13th key-on subroutine, step 160
Then, KCOD the key code corresponding to the key with key on
Set to E. Then, the process proceeds to step 162.

In step 162, it is determined whether MCEDFLG is 1, and if this determination result is affirmative (Y), the process proceeds to step 164.

In step 164, the KCODE key code is set to MCEDKY
And put in MCCOS. Then, the process proceeds to step 166.

In step 166, the pitch is displayed at the positions of "F3" and "G3" in FIG. 3 (C) based on MCEDKY and MCCOS. The two pitches displayed in this case correspond to the pressed key and are equal to each other. After that, the process returns to the routine of FIG.

After the pitch to be changed is displayed in this way, the 11th
As described above with reference to the figure, "COARCE" or "FINE" can be selected and the desired pitch can be set by operating the switch IS or DS.

When the result of the determination in step 162 is negative (N), the process proceeds to step 168, and normal tone generation assignment processing is performed. This process searches for an empty channel for TGs 24 and 26 and assigns the pressed key to the empty channel of TG24 and the empty channel of TG26 as one pair. After this, the process proceeds to step 170.

In step 170, it is determined whether MCON1 is 1, and if this determination result is affirmative (Y), the process proceeds to step 172.

In step 172, frequency control data corresponding to the key code of KCODE is read from MCBUF and sent to the assigned channel of TG24 together with the key-on (KON) signal. Then, the process proceeds to step 174.

At step 174, it is determined whether MCON2 is 1, and if the result of this determination is affirmative (Y), the routine proceeds to step 176.

In step 176, the TG 26 is processed in the same manner as in step 172, and thereafter the process returns to the routine of FIG. As a result, the musical tone signals having the same pitch are transmitted from the TGs 24 and 26 almost at the same time and supplied to the sound system 28. Therefore, the sound system 28 produces two musical tones at the same time. In this case, the two tones that are played simultaneously are
Since it is based on the MCBUF data, it can follow any scale of the user set.

The determination result of step 170 was negative (N) (MCON1
= 0), the process moves to step 178.

In step 178, the frequency control data corresponding to the key code of KCODE is read from FNMEM and sent to the assigned channel of TG24 together with the KON signal. Then, the process proceeds to step 174, and it is determined whether MCON2 = 1. If the determination result is affirmative (Y), the process of step 176 is executed as described above. In this case, the two tones that are played simultaneously are TG24
For TG26, it can be based on the equal tempered scale because it is based on FNMEM data, and for TG26, it can follow any scale of the user set because it is based on MCBUF data.

The determination result of step 174 was negative (N) (MCON2
= 0), the process moves to step 180, and the TG 26 is processed in the same manner as step 178. In this case, step 1
According to step 180 after 72, the two tones that are played at the same time are based on the MCBUF data for the TG24, and thus can be in any scale of the user set, and for the TG26 are based on the FNMEM data. Therefore, it follows the equal temperament scale. Further, if it is assumed that the musical tone is simultaneously generated in step 180 after step 178, the two musical tones that are simultaneously pronounced are in accordance with the equal temperament scale because both TGs 24 and 26 are based on FNMEM data.

The key-off subretaining is omitted from the illustration, but TG
After searching the assigned channels of the key-off key for 24 and 26, the key-off signal may be sent to each assigned channel to stop the sound generation.

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

(1) Although an arbitrarily set pitch curve is commonly used for two series of sound sources, an arbitrary pitch curve may be set independently for each series.

(2) The scale number is stored for each voice, but the frequency control data for all keys may be stored directly. Further, although the tone color number is stored for each voice, the tone color parameter data may be directly stored.

(3) Special scales such as pure tone are each tone (C tone, C ^# tone, etc.)
Although frequency control data is required for each key, it is easy to prepare such data so that the pitch curve can be set for each key.

(4) The tone color parameter storage block TCP has a ROM configuration, but it may be a RAM or a writable external memory so that the user can freely set tone color parameters.

(5) In Mykouro Tuning Edit Mode, the pitch change amount may not be specified and displayed in units of cents.

(6) Although the increment / decrement switch is used as the input operator, a rotary knob, a numeric keypad, or the like may be used.

(7) Although the pitch curve setting and the like are controlled by software, a dedicated hardware configuration may be used.

[Effects of the Invention] As described above, according to the present invention, an arbitrary pitch can be set for each key of the keyboard, so that existing scales such as equal temperament and pure tone can be appropriately modified, You can enjoy a variety of performances by creating musical scales.

In addition, pitch adjustment is possible in both coarse adjustment and fine adjustment modes, and the pitch being adjusted is displayed together with the key name, so the pitch assignment for each key can be performed accurately and quickly. There is also an effect that can be done.

In this case, if a key to be pitch-adjusted is designated by pressing the key on the keyboard, it is not necessary to provide a special operator for designating the key, and one or a set of keys is provided. If the operator is commonly used for the two adjustment modes of the coarse adjustment and the fine adjustment, the number of operations to be installed can be reduced and the panel configuration and the circuit configuration can be simplified.

[Brief description of drawings]

FIG. 1 is a block diagram showing a circuit configuration of an electronic musical instrument according to an embodiment of the present invention, FIG. 2 is a layout diagram showing an operator / display arrangement in a microtuning operation unit MOP, and FIG. 3 (A). ~ (E) is an indicator in various modes
FIG. 4 is a diagram showing a display example of DP, FIG. 4 is a layout diagram showing a register layout in the data working memory 20, FIG. 5 is a layout diagram showing a storage block layout in the data memory 22, and FIG. FIG. 7 is a flowchart showing a main routine, FIG. 7 is a flowchart showing a subroutine for turning on a voice mode selection switch VOICE, FIG. 8 is a flowchart showing a subroutine for turning on an arbitrary voice selection switch V (n), and FIG. Tuning mode selection switch MC
FIG. 10 is a flowchart showing a subroutine for turning on the micro-tuning edit mode selection switch MCED, FIG. 11 is a flowchart showing a subroutine for turning on the increment switch IS, and FIG. 12 is an arbitrary memory selection. FIG. 13 is a flowchart showing a subroutine for turning on the switch M (m), and FIG. 13 is a flowchart showing a subroutine for turning on the key. 10 …… bus, 12 …… keyboard, 14 …… panel operation part, 16 ……
Central processing unit, 18 …… Program memory, 20 …… Data working memory, 22 …… Data memory, 24,26 ……
Tone generator, 28 …… Sound system, 30 ……
External storage unit, MOP ... Micro tuning operation unit, MSS ... Mode selection switch group, VS ... Voice selection switch group, MS ... Memory selection switch group, DP ... Display unit, IS ... Increment switch, DS ... … Decrement switch, CSR, CSL… Cursor move switch.

Claims (2)

[Claims] 1. A keyboard having a large number of keys more than one octave, and a plurality of pitch control information corresponding to a large number of keys of the keyboard, and a plurality of sets of such pitch control information. The stored first storage means, selective reading means for selecting and reading out any one set of pitch control information among the plurality of sets of pitch control information stored in the first storage means, and the keyboard Second storage means having a plurality of storage sections respectively corresponding to a plurality of keys of the keyboard, wherein one set of pitch control information read by the selective reading means is associated with a plurality of keys of the keyboard. What is stored in the large number of storage units, input operation means capable of coarse adjustment operation and fine adjustment operation, and designated by either the keyboard or other key designation means in the large number of storage portions Of the storage unit corresponding to the key Rewriting means for rewriting the high control information according to the operation of the input operation means, and rewriting the pitch control information according to a relatively large pitch change corresponding to the coarse adjustment operation by the input operation means. Regarding rewriting of the treble control information in accordance with a relatively small pitch change corresponding to the fine adjustment operation by the input operation means, and a key designated by either the keyboard or other key designating means Display means for displaying a key name and a pitch corresponding to the pitch control information of the storage section corresponding to the key among the plurality of storage sections; and a display unit generated corresponding to the key pressed on the keyboard. And a control means for controlling the pitch of the musical tone signal to be played based on the pitch control information of the storage unit corresponding to the pressed key among the plurality of storage units. 2. The input operation means includes one or a plurality of operators commonly used for a coarse adjustment operation and a fine adjustment operation,
The electronic musical instrument according to claim 1, further comprising a selection unit that selects whether to use the operator for a rough adjustment operation or a fine adjustment operation.