JPH0234720Y2 - - Google Patents

Description

[Detailed explanation of the idea]

This invention relates to a timbre control device for an electronic musical instrument that can sequentially control the timbre of generated musical sounds. In electronic musical instruments, a large number of tone state setting controls (hereinafter referred to collectively as tone) consisting of switches and variable resistors are used to set the pitch, timbre, volume, effect, etc. (hereinafter collectively referred to as tone) of the generated musical tone. For example, pitch control operators, timbre selection operators, etc.) are provided, and a desired tone state is set by operating these operators as appropriate. By the way, if you want to change the tone in the middle of a song, you must operate the above-mentioned controls while playing, but this operation requires considerable skill and is extremely difficult for beginners. . Therefore, in order to improve this inconvenience,
By storing multiple sets of data representing the setting status of each control in memory in advance and reading out the desired set of data groups with a simple switch operation, the desired setting status of all controls can be instantly achieved. A so-called brisset method has been proposed to obtain the same data. However, even if this preset method is simple, it requires some kind of switch operation, and it is still difficult to operate the switch when playing using both hands. Therefore, this invention provides a timbre control device for an electronic musical instrument that can automatically change the timbre of generated musical sounds as the music progresses. An electronic musical instrument comprising a key operation detection means provided for each key, a musical tone parameter setting means for setting musical tone parameters, and a musical tone signal forming means for forming a musical tone signal based on the supplied musical tone parameters. , a storage means for storing musical tone parameters for each predetermined performance section of a piece of music, a reading means for reading out the musical tone parameters from the storage means in the order of progression of the piece of music, and an output signal of the key operation detection means for detecting the key operation. 1 for the key whose key press is detected by means
converting means for converting into performance section information indicating a performance section corresponding to pair 1, the performance section information having a performance order from the start of the music piece set in the order of the pitch arrangement of this key; The present invention is characterized by comprising a writing means for writing the musical tone parameters indicated by the musical tone parameter setting means to an address corresponding to the performance section information. An embodiment of this invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of an electronic musical instrument to which the timbre control device of this invention is applied. In this figure, symbol 1 is a musical score, and this musical score 1
A magnetic tape 2 on which data related to the performance of music (hereinafter referred to as performance data) is magnetically recorded in advance is attached to the lower part of the music piece. Here, the performance data recorded on the magnetic tape 2 will be explained. FIG. 2 is a diagram showing an example of this performance data, and the data of each row is recorded in series on the magnetic tape 2 in the order of rows 3-1, 3-2, . . . shown in this diagram. In this figure, the tone mark MT is a 2-bit mark indicating that the following data is tone data.
Tone data TOJ and tone data TOM are each
This is data for setting the timbre of a musical tone during automatic performance and the timbre of a musical tone during manual performance. In addition, manual performance refers to keyboard 4.
(Figure 1). The automatic performance mark MJ is a 2-bit mark indicating that the following data is a key code KC indicating the pitch of the musical note and note length data DF indicating the note length (length) of the musical note. PH is a 2-bit mark that indicates the break between each phrase of a song. In FIG. 1, the data reading device 5 reads each data of the magnetic tape 2 described above, and when it reads the tone data TOJ and TOM shown in FIG. Each time the key code KC and note length data DF are read, the read key code KC and note length data DF are supplied to the performance data memory 7, and
Outputs the write address WAD to the address control circuit 8. Similarly, when the phrase mark PH is read, the phrase mark PH is output to the performance data memory 7 and the write address WAD is output to the address control circuit 8. In addition, the automatic performance mark
MJ is not output to the performance data memory 7. The address control circuit 8 is composed of an address counter, a gate circuit, etc., and outputs the write address WAD supplied from the data reading device 5 to the performance data memory 7 when reading data from the magnetic tape 2. The performance data memory 7 is a RAM (random access memory), and writes the key code KC, note length data DF, and phrase mark PH supplied from the data reading device 5 based on the address WAD.
Read sequentially starting from address 0. In this case, the key code
KC and note length data FD are read into one address, and phrase mark PH is read into one address. Each piece of data read into the performance data memory 7 is sequentially read out from the data at address 0 during automatic performance, and the key code KC is assigned to the automatic performance sound forming section 10a of the musical sound signal forming circuit (musical sound signal forming means) 10 and the pressed key. The note length data DF and the phrase mark are each supplied to the display section 11.
PH is supplied to the readout circuit 12. Readout circuit 12
controls the reading of each data in the performance data memory 7, and when the start switch 13 is turned on at the start of automatic performance, the signal RUN (“1” signal) is activated.
When supplied, first, a read command RS (pulse signal) is output to the address control circuit 8. Address control circuit 8 uses this read command RS and signal RUN.
In response to this, it resets the internal address counter and supplies the output of the address counter to the address terminal AD of the performance data memory 7. From then on,
The output of this address counter is continuously supplied to the performance data memory 7. When address "0" is supplied to the address terminal AD of the performance data memory 7, the contents of address O of the memory 7, that is, the key code KC and note length data DF of the first note of the song are read out, and the key code is read out. KC is automatic performance sound forming section 1
0a and key press display section 11, and note length data
DF is supplied to the readout circuit 12, respectively. The automatic performance sound forming section 10a has a pitch corresponding to the supplied key code KC, and uses automatic performance tone data supplied from a tone data generation circuit 15, which will be described later.
A musical tone signal having a tone specified by TOJI is formed and output to the speaker 17 via the amplifier 16. This allows the first sound of the song to be played on speaker 1.
Occurs from 7. In addition, the pressed key display section 11 is displayed on the keyboard 4.
It consists of lamps (or light emitting diodes) provided near each key, and a control circuit that controls the lighting of these lamps. A lamp provided nearby is lit, thereby instructing the practitioner where to operate the key. Meanwhile, the readout circuit 12 starts counting the tempo clock TC output from the tempo clock generation circuit 18. Then, when the count result reaches the note length data DF, the read command RS is outputted to the address control circuit 8 again. Address control circuit 8 receives this read command RS and increments an internal address counter. When the address counter is incremented, the address "1" is supplied to the address terminal AD of the performance data memory 7, and the contents of address 1 of the memory 7, that is, the key code KC and note length data DF of the second note of the song, are supplied to the address terminal AD of the performance data memory 7. The read key code KC is sent to the automatic performance sound forming section 10a and the pressed key display section 11, and
The code length data DF is supplied to the reading circuit 12, respectively. As a result, the second part of the music is played from the speaker 17.
At the same time as the musical tone is generated, the keys on the keyboard 4 are indicated by the lamps. Further, the read circuit 12 starts counting the tempo clock TC again as in the case described above, and outputs the read command RS to the address control circuit 8 again when the count result matches the note length data DF. Thereafter, the above-mentioned operations are repeated, and thereby the music recorded on the magnetic tape 2 is automatically played. In addition, the phrase mark from the performance data memory 7
When PH is read out and supplied to the readout circuit 12,
The readout circuit 12 outputs the phrase pulse PHP to the tone data generation circuit 15 and also issues a read command.
Outputs RS to address control circuit 8. After that, automatic performance continues. phrase pulse php
This will be explained in detail later. Key switches for detecting key operations are provided corresponding to each key on the keyboard 4, and the output of each key switch is supplied to a key switch circuit 20. Key switch circuit 20
detects a key in the ON state by scanning the output of each key switch at a constant cycle, supplies the key code KC of the key to the manual tone forming section 10b of the musical tone signal forming circuit 10, and also outputs the tone data generating circuit. 15, and also outputs a key-on signal KON (“1” signal) to the timbre data generation circuit 15, which indicates that one of the keys is in the on state. The manual sound forming section 10b is
It has a pitch corresponding to the supplied key code KC,
A musical tone signal having a timbre corresponding to the timbre data TOM1 supplied from the timbre data generation circuit 15 is formed and supplied to the speaker 17 via the amplifier 16. As a result, a musical tone (manual tone) corresponding to the key operation on the keyboard 4 is generated from the speaker 17. Next, the timbre data generation circuit 15 will be described in detail. FIG. 3 is a block diagram showing a detailed example of this tone data generation circuit 15. In this figure, the terminals are
T ₁ is tone data in tape data register 6
The terminal T2 is a terminal to which TOJ is both supplied, and the terminal _T2 is a terminal to which tone data TOJ2 and TOM2 outputted from the tone selection switch circuit 22 (FIG. 1) are both supplied. Here, in this electronic musical instrument, a timbre selection switch row for automatic performance sounds and a timbre selection switch row for manual sounds are provided on the panel surface, and the timbre selection switch circuit 22
generates tone data TOJ2 in response to the output of the tone selection switch for the automatic performance tone currently being operated, and generates tone data TOM2 in response to the output of the tone selection switch for the manual tone. Tone color data TOJ2 and TOM2 are both supplied to the terminal _T2 of the tone data generation circuit 15 in parallel. Next, terminal T ₃ is a terminal to which the key code KC and key-on signal KON are supplied from the key switch circuit 20, and terminal T ₄ is the terminal to which the tone data writing switch 2 is supplied.
3 (Fig. 1), a terminal to which the output signal SET is supplied;
Terminal T ₅ receives phrase pulse PHP from readout circuit 12
Terminal T ₆ is the terminal to which the output signal RUN of the start switch 13 is supplied, and
Terminal _T7 is a terminal to which tone data TOJ1 and TOM1 are respectively output. This timbre data generation circuit 15 generates timbre data TOJ and TOM, or timbre data
The selector 25 selectively selects TOJ2 and TOM2, or tone data set in advance in the tone data memory 24 (storage section), and outputs the tone data TOJ1 and TOM1 to the musical tone signal forming circuit via the terminal _T7 . Output to 10. In this case, timbre data is written in the timbre data memory 24 in advance in correspondence with each phrase of the song. That is, timbre data for setting the timbre of the musical tones generated in the first phrase, second phrase, . . . of the music piece are written in addresses 0, 1, . . . of the timbre data memory 24, respectively. The operation of this tone data generation circuit 15 will be explained in detail below. First, the case of writing timbre data to the timbre data memory 24 will be explained. In this case, the operator (practitioner) first writes the tone data and turns on the switch 23, and in this on state sets the tone using the tone selection switches for automatic performance sounds and manual sounds on the panel. To set the timbre of the three phrases, press the key numbered 4 on the keyboard (see Figure 1) for a short time. When the tone data writing switch 23 is turned on, the signal SET becomes a “1” signal,
This "1" signal is supplied to the input terminal of the differentiating circuit 27 and one input terminal of the AND gate 28. When a "1" signal is supplied to the input terminal of the differentiating circuit 27, the differentiating circuit 27 outputs a pulse signal at its rising edge, and supplies it to the reset terminal R of the address counter 30 via the OR gate 29.
Flip-flop (hereinafter abbreviated as FF) 31
is supplied to the set terminal S of the This resets the address counter 30 and also resets the FF 31.
is set and a "1" signal is output from its output terminal Q, the AND gate 32 becomes open and the output of the inverter 33 becomes a "0" signal. The output of this inverter 33 is the gate circuit 3
4 enable terminal EN and AND gate 28
is supplied to the other input terminal of. The gate circuit 34 becomes open when a "1" signal is supplied to its enable terminal EN, and becomes closed when a "0" signal is supplied to its enable terminal EN. When the output of the inverter 33 becomes a "0" signal, The gate circuit 34 is closed, and data “0” is sent to the input terminal IN of the tone data memory 24.
is supplied. On the other hand, when a "0" signal is supplied to the other input terminal of the AND gate 28, the output of the AND gate 28 becomes a "0" signal, and this "0"
A signal is supplied to terminal SA of selector 35. When a "0" signal is supplied to the terminal SA of the selector 35, the selector 35 supplies the data supplied to its input terminal B, that is, the count output of the address counter 30, to the address terminal AD of the tone data memory 24. In this way, the switch 23 is turned on,
When the signal SET rises to "1", the AND gate 32 becomes open at this rising time, data "0" is supplied to the input terminal IN of the tone data memory 24, and the address counter 30 is reset. The count output "0" is supplied to the address terminal AD of the timbre data memory 24. Then, when the AND gate 32 becomes open,
A system clock φ (for example, IMHz) is outputted from its output terminal via an AND gate 32, and is supplied via an OR gate 37 to a clock terminal CK of an address counter 30, and also via an OR gate 38 to a tone data memory 24. write terminal
Supplied to WT. As a result, the address “0” is sent to the address terminal AD of the tone data memory 24,
"1", "2", etc. are sequentially supplied, and each time the address supplied to the address terminal AD changes, a write pulse is supplied to the write terminal WT. As a result, data "0" is output from the gate circuit 34 into each address of the tone data memory 24.
are written sequentially. That is, the tone data memory 24 is cleared. Then, when the count output of the address counter 30 returns to "0" again, a pulse signal is output from the address end terminal AE of the address counter 30 and is supplied to the reset terminal R of the FF 31, and the FF 31 is reset. A "0" signal is output from the output terminal Q. As a result, the AND gate 32 is closed, the output of the system clock φ is stopped, and the output of the inverter 33 becomes a "1" signal. When the output of the inverter 33 becomes a "1" signal, the gate circuit 34 becomes open. Also, a “1” signal is supplied to both input terminals of the AND gate 28, and therefore a “1” signal is supplied to the terminal SA of the selector 35.
A signal is provided. As a result, the output of the key code/address conversion circuit (hereinafter abbreviated as KC/AD conversion circuit) 40, which is supplied to the input terminal A of the selector 35, is supplied to the address terminal AD of the timbre data memory 24. Thus, the above operations are performed substantially simultaneously when the operator presses the timbre data writing switch 23. Next, when the operator sets a tone using the tone selection switch for automatic performance sound and manual tone while pressing the switch 23, the tone color data TOJ2 and TOM2 corresponding to the set tone are sent from the tone selection switch circuit 22. The signal is output and supplied to the gate circuit 34 via the terminal _T2 . The gate circuit 34 adds a change flag "1" to the tone data TOJ2 and TOM2 and outputs them to the input terminal IN of the tone data memory 24. Note that the change flag "1" will be explained later. Next, when the operator presses, for example, a key labeled with the symbol 4 on the keyboard for a short time, the key switch circuit 20 outputs a key code KC and a key-on signal KON (“1” signal) corresponding to the key, and the key code KC is through terminal T ₃
The key-on signal KON is supplied to the KC/AD conversion circuit 40, and the key-on signal KON is supplied to the differentiating circuit 41 via the terminal _T3 . The KC/AD conversion circuit 40 is a circuit that converts the supplied key code KC into an address of the tone data memory 24, and converts the supplied key code KC into an address of the tone data memory 24, and converts the code, . . .
When key codes KC of keys marked with... are supplied, addresses "0", "1", "2", etc. are outputted in correspondence with these key codes KC, respectively. Therefore, when the key code KC of the key with the code is supplied to the KC/AD conversion circuit 40,
Address "2" is output from the KC/AD conversion circuit 40 and supplied to the address terminal AD of the timbre data memory 24 via the selector 35. As a result, address 2 of the timbre data memory 24 is designated. On the other hand, when the key-on signal KON is supplied to the differentiating circuit 41, the differentiating circuit 41 outputs the key-on signal KON.
At the rising edge of , a pulse signal is output and supplied to the write terminal WT of the timbre data memory 24 via the OR gate 38 . As a result, the output data of the gate circuit 34, that is, the tone data TOJ2, TOM2 and the change flag "1" are written into address 2 of the tone data memory 24. Next, when the operator again sets another tone using the tone selection switch circuit 22 on the panel, and presses the key labeled, for example, on the keyboard 4, the tone will be changed in exactly the same way as in the case described above. Tone color data TOJ2, TOM2 and a change flag "1" corresponding to the newly set tone color are written into address 4 of the data memory 24. Writing to other addresses in the timbre data memory 24 is done in exactly the same way. For example, if the second and third phrases of the song have the same tone, there is no need to write the tone data in address 2 of the musical tone data memory 24 (corresponding to the tone of the third phrase). Next, the operation of the timbre data generation circuit 15 during automatic performance of a piece of music will be explained. In the following explanation, as shown in FIG. 4, tone data A for automatic performance sounds and tone data B for manual performance sounds are stored at address 1 of the timbre data memory 24, and timbre data B for manual performance sounds are stored at address 3. It is assumed that timbre data C for 1 and timbre data D for manual performance sounds are respectively written. First, when the start switch 13 shown in FIG. 1 is turned on, the signal
RUN rises to a "1" signal, and this "1" signal is supplied to one input terminal of AND gate 42 and the input terminal of differentiation circuit 43 shown in FIG. When a "1" signal is supplied to one input terminal of the AND gate 42, the AND gate 42 becomes open, and when a "1" signal is supplied to the input terminal of the differentiating circuit 43, the rising edge of the AND gate 42 becomes an open state. A pulse signal RUNP (“1” signal) is output from the differentiating circuit 43.
This pulse signal RUNP is supplied to the reset terminal R of the address counter 30 via the OR gate 29, whereby the address counter 30 is reset. Further, this pulse signal RUNP is supplied to the terminal Ta of the pulse holding circuit 45. The pulse holding circuit 45 is composed of DFFs (D flip-flops) 46 to 48 whose clock terminals are supplied with the aforementioned system clock φ and various gate circuits, and whose terminals Ta are supplied with pulse signals. In this case, DFF 46 is set, while DFF 47 and 48 are reset,
DFF4 when a pulse signal is supplied to terminal Tb
7 is set, DFFs 46 and 48 are reset, and when a pulse signal is supplied to terminal Tc, DFF 48 is set, while DFF 46 and 48 are reset.
46 and 47 are reset. That is, the terminal
Pulse signal RUNP (“1” signal) to terminal Ta while “0” signal is supplied to Tb and Tc.
When the pulse signal RUNP is supplied, this pulse signal RUNP is supplied to the input terminal of the DFF 46 via the OR gate 49, thereby reading "1" into the DFF 46 (the DFF 46 is set). On the other hand, when the pulse signal RUNP is supplied to the terminal Ta, the output of the NOR gate 50 which takes the NOR of each signal of the terminals Ta to Tc becomes a "0" signal for the same time as the pulse width of the pulse signal RUNP, and this "0" signal is and gate 51~5
3 is supplied to one input terminal of each. As a result, the outputs of the AND gates 52 and 53 become "0" signals, and therefore the OR gates 54 and
Both outputs of 55 become "0" signals, and this "0"
The signals are read into DFF47 and 48 respectively (DFF
47 and 48 are reset). Next, when the pulse signal RUNP returns to a "0" signal, the output of the NOR gate 50 becomes a "1" signal, and the AND gate 5
1 to 53 are both in the open state. As a result, DFF
Each of the outputs of DFFs 46 to 48 is supplied to each input terminal of DFFs 46 to 48, respectively.
The stored contents of 48 are held until the next pulse signal is supplied to either terminal Tb or Tc. terminal
When pulse signals are supplied to Tb and Tc, the operation is similar to that described above. Next, the output signal "1" of the DFF 46 set by the pulse signal RUNP and the output signal "0" of the reset DFFs 47 and 48 are sent to the terminals of the selector 25 via the terminals Td to Tf of the pulse holding circuit 45, respectively. Supplied to SA, SB, and SC. The selector 25 selectively selects and outputs the data supplied to its input terminals A, B, and C based on the signals supplied to the terminals SA to SC, and outputs "1" only to the terminal SA. ``When a signal is supplied, the data obtained at input terminal A, that is, the tone data TOJ and TOM output from the tape data register 6 (Fig. 1), are converted into tone data.
The signals are output as TOJ1 and TOM1 and supplied to the musical tone signal forming circuit 10 via the terminal _T7 . In this way, when the start switch 13 is turned on and the signal RUN rises to "1", the tone data TOJ,
TOM is supplied to the musical tone signal forming circuit 10 as tone data TOJ1 and TOM1, respectively, and as a result, the tone of the automatic performance sound of the first phrase of the song is changed to the tone data.
It will be compatible with TOJ. Further, when the practitioner operates each key on the keyboard 4 during automatic performance of the first phrase, a manual sound of a tone corresponding to the tone data TOM is generated from the speaker 17. Next, when the automatic performance of the music piece progresses and the automatic performance of the first phrase ends, the phrase mark PH is read out from the performance data memory 7 and supplied to the readout circuit 12 at the end of the automatic performance of the first phrase. As a result, the phrase pulse PHP is output from the readout circuit 12 and supplied to the other input terminal of the AND gate 42 via the terminal T ₅ (FIG. 3). At this time, the signal RUN (“1”) is input to one input terminal of the AND gate 42.
Therefore, the phrase pulse PHP is output from the AND gate 42 and is supplied to the clock terminal CK of the address counter 30 via the OR gate 37, as well as to one input terminal of the AND gate 58. be done. Phrase pulse to clock terminal CK of address counter 30
When PHP is supplied, the address counter 30 is incremented and its count output becomes "1".
Therefore, this count output “1” is output to the selector 35.
to the address terminal of the tone data memory 24 via
Supplied to AD. As a result, the contents of address 1 of the timbre data memory 24, that is, the timbre data A and B shown in FIG. , now the tone data A and B are respectively supplied to the input terminals of the latch 59. and gate 5
When the change flag "1" is supplied to the other input terminal of the AND gate 58, the AND gate 58 becomes open, and the phrase pulse PHP that is being supplied to the one input terminal at this point is output as the pulse signal P1. ,
The signal is supplied to the load terminal LD of the latte 59 and the terminal Tc of the pulse holding circuit 45. As a result, the tone data A and B of the latch 59 are read, the read tone data A and B are supplied to the input terminal C of the selector 25, and the pulse holding circuit 45 also receives the tone data A and B.
"0", "0", and "1" are read into the DFFs 46 to 48, respectively, and the read signals are supplied to the terminals SA to SC of the selector 25, respectively. And selector 2
When a “1” signal is supplied only to terminal SC of 5,
The selector 25 outputs the tone color data A and B supplied to the input terminal C as tone color data TOJ1 and TOM1, respectively, and supplies them to the musical tone signal forming circuit 10 via the terminal _T7 . As a result, the timbres of the automatic performer and manual sounds of the second phrase of the song correspond to the timbre data A and B, respectively. Next, when the automatic performance of the second phrase of the song progresses and the next phrase mark PH is read out from the performance data memory 7, and the phrase pulse PHP is output again from the readout circuit 12, the process is performed in the same way as in the above case. The data "0" and the change flag "0" in address 2 of the tone color data memory 24 are read out and supplied to the input terminal of the latch 59 and the other input terminal of the AND gate 58, respectively. However, in this case, since the change flag is "0", the AND gate 58 does not open, and therefore the pulse signal P1 is not output from the AND gate 58.
As a result, the output of the latch 59, the pulse holding circuit 4
None of the outputs of 5 remain unchanged. That is, the timbres of the automatic performance sound and manual sound of the third phrase of the song are the same as the timbre of the second phrase. Thereafter, the above-described process is repeated. For reference, the following table shows the timbre data that determines the timbre of each phrase of the song in the above-mentioned case.

[Table] Next, a case will be described in which the practitioner operates the tone color selection switch on the panel during the progress of a piece of music. The practitioner operates the tone selection switch for automatic performance sounds or manual sounds on the panel,
As a result, when the tone data TOJ2 or TOM2 changes, the switch data change detection circuit 61 (detection means) (FIG. 3) detects this change and supplies the pulse signal P2 to the terminal Tb of the pulse holding circuit 45. As a result, “0” from DFF46 to 48,
"1" and "0" are respectively outputted and supplied to terminals SA to SC of the selector 25, respectively. When a "1" signal is supplied only to the terminal SB of the selector 25, the selector 25 supplies the tone data TOJ2 and TOM2 supplied to its input terminal B to the musical tone signal forming circuit 10 via the terminal _T7 , respectively. . That is, when the tone selection switch is operated during the progress of a piece of music, the tone data output from the tone selection switch circuit 22 will be changed from then on until the phrase ends.
The tone of the song is determined by TOJ2 and TOM2. After the next phrase mark PH is read out from the performance data memory 7, the tone of the song is determined again by the tone data in the tone data memory 24. The details of one embodiment of this invention have been described above. In the above-described embodiment, the address of the tone data memory 24 at the time of writing is specified by the keys of the keyboard 4, but instead of this, the phrase number of the phrase specified by the key is specified. Write it to the tone data memory 24 along with the tone data,
At the time of reading, each phrase number in the timbre data memory 24 may be scanned to obtain the timbre data. Further, in the embodiment described above, tone data is stored in the tone data memory 24 in units of phrases, and each data in the tone color data memory 24 is read out based on the phrase mark PH. Tone data memory 24
It is also possible to store timbre data in measure units within the timbre data memory 24, detect the break between measures by counting the tempo clock TC at the time of readout, and read out each data in the timbre data memory 24 according to the detection result. good. As explained above, this invention includes means for converting the output of a key switch into partial data indicating a predetermined performance section of a piece of music, a writing means for writing timbre information in a storage unit in correspondence with the partial data, and Since the timbre control means supplies the timbre information written in the storage unit as the music progresses to the musical tone signal forming means in correspondence with a predetermined performance section of the musical piece, the timbres of the generated musical tones can be automatically adjusted in the desired order. It can be changed. In addition, according to this invention, it is possible to specify a predetermined performance section of a song using the keys on the keyboard, so there is no need to provide switches for specifying a predetermined performance section of a song, and the tone information can be stored in the memory. Excellent operability when writing to. Also,
According to this invention, since the timbre information corresponding to the output of the same timbre selection switch is supplied to the musical tone forming means after the operating state of the timbre selection switch changes, the timbre can be changed arbitrarily during the progress of the piece of music. Variable benefits are obtained.

[Brief explanation of drawings]

Figure 1 is a block diagram showing the configuration of an embodiment of this invention, and Figure 2 is a magnetic tape 2 in the same embodiment.
FIG. 3 is a block diagram showing a detailed example of the timbre data generation circuit 15 in the same embodiment, and FIG. 4 shows an example of the timbre data stored in the timbre data memory 24 in the same embodiment. It is a figure showing an example. 4... Keyboard, 10... Musical tone signal forming means (musical tone signal forming circuit), 22... Musical tone parameter setting means (tone selection switch circuit), 24... Storage means (tone data memory), 30... Reading means ( address counter), 34...writing means (gate circuit), 40...conversion means (KC/AD conversion circuit).

Claims (1)

[Claims for Utility Model Registration] A keyboard consisting of a plurality of keys for specifying pitches, key operation detection means provided for each key of the keyboard, and musical tone parameter setting means for setting musical tone parameters. , a musical tone signal forming means for forming a musical tone signal based on supplied musical tone parameters, comprising: a storage means for storing musical tone parameters for each predetermined performance section of a piece of music; and a storage means for storing the musical tone parameters from the storage means. reading means for reading out the music in the order in which the music progresses; and performance section information indicating the performance section that corresponds one-to-one to the key whose press is detected by the key operation detection means, for the output signal of the key operation detection means. a conversion means for converting into performance section information in which the performance order from the start of the music is set in the order of the pitch arrangement of the keys, and the musical tone parameter setting in the address corresponding to the performance section information of the storage means. A timbre control device for an electronic musical instrument, comprising: writing means for writing musical tone parameters indicated by the means.