JPH0486698A - Electronic musical instrument - Google Patents

Abstract

PURPOSE:To facilitate the faithful simulation of the sounds produced by repeated touching of a natural musical instrument, such as piano, by generating musical tones in the form of reflecting the characteristic fluctuation by the previous sound. CONSTITUTION:The remaining quantity of the musical tone signal corresponding to the previous performance information is determined at the time of generation of the later performance information by a central processor 12 when two sets of the performance information are successively generated from an information generating means 18A. The characteristic of the musical tone signal corresponding to the later performance information is controlled according to the musical tone control data corresponding to this remaining quantity. The musical tone control data is formed by taking the characteristic fluctuation that the later sound receives into consideration according to the remaining quantity of the previous sound and, therefore, the musical tone signal corresponding to the later performance information is generated in the form of reflecting this characteristic fluctuation. The sounds generated by the repeated touching of the natural musical instrument, such as piano, are faithfully simulated in this way.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to electronic musical instruments, and particularly to a technique for controlling the musical tone characteristics of a trailing tone in consideration of the influence of a leading tone.

[Summary of the Invention] The present invention provides for, when generating a musical tone, determining the remaining amount of the previous musical tone by level detection or time measurement, etc., and controlling musical tone characteristics in accordance with musical tone control data corresponding to the remaining amount. This makes it possible to simulate the continuous sound of natural instruments such as the piano.

[Prior Art] Conventionally, touch-responsive electronic musical instruments detect the amount of key touch (strength or speed of key touch) when a key is pressed, and adjust characteristics such as the amplitude envelope of a musical tone according to the amount of key touch. There are known devices that control the

In addition, as a forenote response type electronic instrument, the time interval from the key-off (start of decay) of the forenote to the current key-on is measured, and if the measured value is smaller than a predetermined value, it is determined that the playing style is legato and a corresponding response is taken. There is a known method in which the musical tone is controlled according to the amplitude envelope, otherwise it is determined that the playing style is staccato, and the musical tone is controlled according to the corresponding amplitude envelope. (see publication).

[Problems to be Solved by the Invention] In the touch-responsive electronic musical instrument described above, although the strength (or speed) of the key touch is reflected in the musical tone characteristics for each note, the Since the characteristics of musical tones are not controlled in relation to the sound, it is not possible to faithfully simulate the continuous sound of a natural instrument such as a piano.

For example, when you hit a key rapidly on a piano, the string that produced the previous note vibrates while the string that generated the previous note still vibrates, so the volume and timbre are different from the case of non-repeat hits due to resonance etc. , pitch, etc. are slightly different, which helps give it the feel of a natural instrument. However, with the touch-responsive electronic musical instruments mentioned above, when you hit a key repeatedly quickly, even though the volume changes according to the change in the amount of key touches, the volume and tone change due to the influence of the previous note, as in the case of repeated hits on a piano. , changes in characteristics such as pitch cannot be obtained.

On the other hand, in the case of the above-mentioned fore-tone responsive electronic musical instruments, although the envelope changes in response to changes in the playing method, each envelope is not determined in consideration of the characteristic fluctuations that affect the after-tone of the fore-tone. , changes in characteristics such as volume, timbre, pitch, etc. due to the influence of the previous sound cannot be obtained as in the case of repeated piano hits.

SUMMARY OF THE INVENTION An object of the present invention is to provide a novel electronic musical instrument that can generate musical tones in a manner that reflects characteristic fluctuations due to fore-tones.

[Means for Solving the Problems] An electronic musical instrument according to the present invention includes: (a) information generating means for generating performance information that indicates each musical tone to be generated; and (b) performance from this information generating means. (c) sound source means for generating a musical tone signal indicative of the performance information in accordance with the information; means for determining the remaining amount of musical tone signals corresponding to the performance information; (d) musical tone control data corresponding to the remaining amount determined by this means, such that the musical tone before the amount corresponding to the remaining amount is the musical tone after the musical tone; (e) data generation means for generating data created to represent the characteristics of the subsequent musical tone in consideration of characteristic fluctuations affecting the performance information; control means for imparting characteristics expressed by the musical tone control data to the musical tone signal by controlling the characteristics of the musical tone signal corresponding to the musical tone signal.

In such a configuration, the means for determining the remaining amount includes:
comprising detection means for detecting the level of a musical tone signal corresponding to the previous performance information when the subsequent performance information is generated;
The remaining amount may be determined based on the level detected by the detection means, or the remaining amount may be determined by a clock means for measuring the elapsed time from the start of attenuation of the musical tone signal corresponding to the previous performance information. The remaining amount may be determined based on the time measured by the timer when the subsequent performance information is generated.

In addition, in the electronic musical instrument described above, instead of the means (c) and (d), (C") when two pieces of performance information are sequentially generated from the information generating means, when the later performance information is generated. a detection means for detecting a difference in pitch indicated by the previous and subsequent performance information on the condition that a musical tone signal corresponding to the previous performance information remains; The musical tone control data corresponds to the pitch difference, and the characteristics of the subsequent musical tone are taken into consideration the characteristic fluctuations that the previous musical tone exerts on the subsequent musical tone among the musical tones that have a pitch difference corresponding to the pitch difference. Data generating means may be provided to generate data created to represent the data.

[Function] According to the configuration of the present invention, when two pieces of performance information are sequentially generated from the information generating means, the remaining amount of the musical tone signal corresponding to the first performance information is determined when the second performance information is generated, The characteristics of the musical tone signal corresponding to the subsequent performance information are controlled in accordance with the musical tone control data corresponding to this remaining amount. in this case,
The musical tone control data is created taking into account the characteristic fluctuations of the subsequent tone depending on the remaining amount of the preceding tone, so the musical tone signal corresponding to the subsequent performance information is generated in a form that reflects such characteristic fluctuations. . If you consider volume, timbre, pitch, etc. as characteristics that fluctuate, and create musical tone control data in such a way that the larger the remaining amount of the previous note, the greater the variation in the characteristics, the effect of the previous note will be reduced when playing rapidly on a piano etc. You can simulate how it grows.

In addition, when the means (Co) and (do) are provided as described above, if a musical tone signal corresponding to the previous performance information remains when the subsequent performance information is generated, an instruction for the subsequent performance information is provided. The pitch difference between the two is detected, and the characteristics of the musical tone signal corresponding to the subsequent performance information are controlled in accordance with the musical tone control data corresponding to this pitch difference. In this case, the musical tone control data is created taking into account the characteristic fluctuations of the succeeding tones depending on the pitch difference between the preceding and preceding tones, so the musical tone signal corresponding to the succeeding performance information is created in a form that reflects such characteristic fluctuations. occurs in If you consider volume, timbre, pitch, etc. as characteristics that fluctuate, and create musical tone control data in such a way that the larger the pitch difference, the smaller the variation in characteristics, it will be possible to create musical tone control data such as pianos with pitch differences (large distance between strings). Repeated hits can simulate how the influence of the front sound becomes smaller.

[Embodiment] FIG. 1 shows the circuit configuration of an electronic musical instrument embodying the present invention, and the musical tone generation of this electronic musical instrument is controlled by a microcomputer. The shaded signal lines in FIG. 1 represent multi-bit information transmission paths.

Circuit configuration (Figure 1) In Figure 1, the bus 10 includes a central processing unit (CPU).
) 12, data and program memory 14, working memory 16, key press detection circuit 18, initial touch detection circuit 20, operation detection circuit 22, sound source (TG) 24, etc. are connected.

The CPU 12 executes various processes for generating musical tones according to programs stored in the memory 14, and these processes will be described later with reference to FIGS. 3 to 7. The CPU 12 is supplied with a clock signal TMC as an interrupt signal from the timer circuit 42 in order to execute the routine shown in FIG.

Memory 14 is ROM (read only memory)
It stores musical tone control data, etc. in addition to the above-mentioned programs. The storage section for musical tone control data in the memory 14 is called a musical tone control data bank, and its storage format will be described later with reference to FIG.

The memory 16 is made up of RAM (random access memory) and includes a storage area used as a register during various processing by the CPU 12. Registers related to the implementation of this invention will be described later.

The key press detection circuit 18 detects key operation information via key switches and the like provided for each key of the keyboard 18A. Regarding the keyboard 18A, a key coat corresponding to each key is determined in advance.

The initial touch detection circuit 20 detects touch data according to the key pressing speed via a touch sensor or the like provided for each key of the keyboard 18A.

The operation detection circuit 22 includes a functional switch group 2 including a plurality of tone switches each corresponding to a plurality of tones such as piano tones.
Switch operation information is detected for each switch in 2A.

The TG 24 includes a plurality of time-division musical tone generation channels, and generates a digital musical tone signal by multiplying musical waveform data representing a musical sound waveform specified for each channel by envelope data representing a specified amplitude envelope waveform. It is designed to form a

In TG 24, interface circuit 26 couples waveform generation circuit 28, envelope generation circuit 30, and level detection circuit 32 to bus IO. The musical waveform data from the circuit 28 and the envelope data from the circuit 30 are multiplied by a multiplier 34 at the timing of the channel to which the key code to be generated is assigned. The digital musical tone signals for a plurality of channels sent out in a time-division manner from the multiplier 34 are combined by a channel accumulation circuit 36 and supplied to a digital/analog converter (DAC) 38, where they are converted into analog musical tone signals. . The analog musical tone signal from the DAC 38 is supplied to a sound system 40 that includes an output amplifier, speakers, etc., and is converted into sound.

The level detection circuit 32 detects the amplitude level of the synthesized digital tone signal from the channel accumulation circuit 36, and level data representing the detected amplitude level can be read out via the interface circuit 26.

Musical Tone Control Data Bank (Fig. 2) Fig. 2 shows the storage format of the musical tone control data bank in the memory 14. The bank includes a data storage section TDB ( T
C) is provided. That is, TDB (TC) is a data storage section for one tone, and key code register K
A plurality of musical tone control data TD is stored for each CD value (pitch) in accordance with the touch register VELO value (key touch amount), and for each KCD value, a plurality of musical tone control data TD is stored in accordance with the value of the level register LVL for each VEL value. A plurality of musical tone control data TD are stored. Registers KCD, VEL and LVL reside within memory 16.

The data in the register LVL is obtained by extracting the upper 3 bits of the 8-bit level data read from the level detection circuit 32), and takes any value from 0 to 7. The LVL value corresponds to the remaining amount of the foretone, and as it increases from 0 to 7, it represents a larger remaining amount.

By specifying the values of KCD, VEL, and LVL, one musical tone control data TD to be read can be specified. Each musical tone control data TD consists of waveform specification data W and envelope specification data E. The data W specifies the musical waveform to be generated by the waveform generation circuit 28, and the data E specifies the musical waveform to be generated by the envelope generation circuit 30. Now you can specify the amplitude envelope waveform.

As an example, each tone control data T corresponding to the LVL value of O
D determines the contents of data W and E without considering characteristic fluctuations due to forenotes, and each musical tone control data TD corresponding to each LVL value of 1 to 7 takes into account characteristic fluctuations such as volume, timbre, pitch, etc. due to forenotes. The contents of data W and E are determined in consideration of the following. and 1 to 7 LV for each VEL value for each KCD value.
The seven types of musical tone control data TD corresponding to the L value are LVL
The data contents are determined so that as the value increases from 1 to 7, the characteristic variation due to the front sound gradually increases.

Among the registers in the register memory 16, those related to the implementation of the present invention are listed below.

(1) Key code register KCD: This is used to set a key code related to a key-on or key-off event from the detection circuit 18.

(2) Old key code register 0KCD: A key code related to a key-on event is set from register KCD. The KCD key code is related to the current key event, whereas the 0KCD key code is related to the previous key-on event.

(3) Touch register VEL...This is the detection circuit 2
Touch data is set from 0.

(4) Level register LVL...This is the detection circuit 3
2 to 3 bit level data is set.

(5) Tone color number register TC: This is used to set the tone color number corresponding to the turned on tone color switch.

(6) Timing register TIME: This register is used to measure the elapsed time from the start of the decay of musical tones based on the clock signal TMC from the timer circuit 42. For example, a 3-bit register is used.

(7) Key-off register KOF...This is a 1-bit register, and if it is "1", it means that all channels of the TG24 are in the key-off state (musical tone is decaying or not occurring), and "0" , indicates that one of the channels is in the key-on state (musical tone generation state).

(8) Pitch difference register DIF: This is a 3-bit register in which pitch difference data is set. The pitch difference data is obtained by determining the absolute value of the difference between the key coat values of KCD and 0KCD, and extracting the top three bits from the data representing this absolute value.

First Embodiment (FIG. 3) FIG. 3 shows the processing flow of a main routine according to a first embodiment of the present invention, and this routine starts in response to power-on, etc.

First, in step 50, initialization processing is performed to initialize various registers. For example, register LV
L is set to 0, and register TC is set to a timbre number corresponding to the initial timbre (eg, piano timbre). Then, the process returns to step 52B.

In step 52, it is determined whether there is a key-on event for any key on the keyboard 18A, and if there is (Y), a key code corresponding to the key associated with the key-on event is set in the register KCD in step 54. Then, in step 56, the touch data detected from the key related to the key-off event is set in the register VEL.

Next, in step 58, the upper 3 bits of level data are read from the TG 24 and set in the register LVL.

Then, the process moves to step 60.

In step 60, one of the vacant channels of the TG 24 is designated as the assigned channel. Then, the process moves to step 62.

In step 62, the musical tone control data bank T corresponding to the tone number (selected tone number) of the register TC is
Musical tone control data corresponding to the values of VEL, LVL, and KCD is read from DB (TC) and sent to the assigned channel of TG24. Then, the process moves to step 64, and the KCD key code and key-on signal are sent to the assigned channel of the TG 24.

As a result, a musical tone signal having a pitch corresponding to the pressed key is generated, and the characteristics of this musical tone signal reflect the VEL value (key touch amount) and the LVL value (remaining amount of previous note). Become. However, when you press the key for the first time after turning on the power,
Since there is no fore-tone and the LVL value is set to -0 in step 50, the tone sub-tube is not performed in consideration of characteristic fluctuations due to the fore-tone. This means that the LV
The same applies to the case where the L value=0.

When the determination result in step 52 is negative (N) or when the process in step 64 is completed, the process moves to step 66, and it is determined whether a key-off event has occurred for any key on the keyboard 18A. If the determination result in step 66 is affirmative (Y), the process advances to step 68.

In step 68, a key code corresponding to the key related to the key-off event is set in the KCD. Then, the process moves to step 70, where KCD is selected from among all channels of TG24.
Search for channels with the same key code.

When a channel that is currently producing sound is searched for, key-off processing for that channel is performed in step 72. That is, a key-off signal is sent to the channel that is currently producing sound to start attenuation of the musical tone signal. Incidentally, if the channel in which sound is being generated is not searched, the process of step 72 is not performed.

When the determination result in step 66 is negative (N),
When the process of step 72 is completed or when the currently sounding channel is not searched, the process moves to step 74.
It is determined whether there is an on event in any tone switch (SW). If this determination result is affirmative (Y), the process moves to step 76.

In step 76, the tone color number corresponding to the tone color switch related to the on event is set in TC. Therefore, any tone color can be selected by turning on any tone color switch.

If the determination result in step 74 is negative (N) or if the process in step 76 is completed, other processes are performed in step 78, and then the process returns to step 52. Then, the processing from step 52 onwards is repeated in the same manner as described above.

4 and 5 show a main routine and a timer interrupt routine according to a second embodiment of the present invention. This embodiment differs from the first embodiment in that the remaining amount of the previous musical tone signal is This is determined by measuring the elapsed time from the start of attenuation of the musical tone signal. In the second embodiment, the value of the register TIME corresponds to the remaining amount of foretone, and as it increases from 0 to 7, it represents a smaller remaining amount. Therefore, when reading the musical tone control data from the musical tone control data bank TDB (TC) of the memory 14, the contents of TIME are
J is "111", rooIJ is rl 10J...r
lllJ reads data using a value obtained by inverting it such as "000" (referred to as an inverted value). Another method is to set the musical tone control data of LVL value = 0 to TIME in the TDB (TC), contrary to what was described above in connection with FIG.
Musical tone control data with value = 7, musical tone control data with LVL value = 1, musical tone control data with TIME value = 6, etc. are stored, and the data is read using the TIME value. Good too.

The routine shown in FIG. 4 starts when the power is turned on, and in step 80, initialization processing is performed to initialize various registers. For example, TIME is set to 7, and TC is set to a tone number corresponding to the initial tone. Then, the process moves to step 82.

In step 82, it is determined whether there is a key-on event for any key on the keyboard 18A, and if there is (Y), a key code corresponding to the key associated with the key-on event is set in the KCD in step 84. Then, in step 86, the touch data detected from the key related to the key-on event is set in VEL.

Next, in step 88, one of the free channels of the TG 24 is designated as an assigned channel. Then, the process returns to step 90B.

In step 90, the values of VEL and KCD are obtained from the musical tone control data bank TDB (TC) corresponding to the transition selection tone.
Read the musical tone control data according to the inverted value of IME and press T.
Send to the assigned channel of G24. Then, at step 92, the KCD key code and key-on signal are sent to the assigned channel of the TG 24.

As a result, a musical tone signal having a pitch corresponding to the pressed key is generated, and the characteristics of this musical tone signal reflect the VEL value (&! touch amount) and the TIME value (remaining amount of previous note). becomes. However, when the key is pressed for the first time after the power is turned on, there is no fore-tone, and the TIME value is set to 7 in step 80, so musical tone control that takes into account characteristic fluctuations due to the fore-tone is not performed. This also applies to the case where the TIME value becomes 7 as a result of the fore-tone being completely attenuated.

After step 92, in step 94, register KOF is set to 0, and in step 96, TIME is set to 0. These steps 94 and 96 are processing for ending the measurement of the elapsed time from the start of the decay of the previous musical tone signal at the current key-on event.

If the determination result in step 82 is negative (N) or if the process in step 96 is completed, the process moves to step 98.

In step 98, it is determined whether there is a key-off event for any key on the keyboard 18A, and if there is (Y), a key code corresponding to the key related to the key-off event is set in the KCD in step 100. And step 102
Next, search for a channel that is producing the same key code as KCD from among all the channels of TG24.

Next, in step 104, it is determined whether there is a channel in which the same key code as KCD is being sounded. If yes (Y), in step 10B, key-off processing is performed for the channel in the same manner as in step 7o described above. As a result, the musical tone signal that is being generated begins to decay.

After this, in step 108, TIME is set to ◯. This is to start measuring the elapsed time from the start of attenuation of the musical tone signal. After step 108, step 11
It goes down to 0.

In step 110, it is determined whether all channels of the TG 24 are in the key-off state, and if the result of this determination is affirmative (Y), KOF is set to 1 in step 112. This is T
This is to start measuring the elapsed time from the start of the musical tone decay on the condition that the musical tone is attenuating or not occurring in all channels of G24.

The determination result of step 98.104 or 110 is negative (
N), or when the process of step 112 is completed, the process moves to step 114.

In step 114, it is determined whether there is an on event in any of the tone switches, and if the result of this determination is affirmative (Y), the process moves to step 116. In step 116, the tone number corresponding to the tone switch related to the on event is set to T.
Set to C.

After this, other processing is performed in step 118, and then the process returns to step 82, and the subsequent processing is repeated in the same manner as described above.

On the other hand, the timer interrupt routine in FIG.
It starts every time a pulse as clock signal TMC is generated. In step 120, it is determined whether the value of KOF is 0, and if it is not 0 (N), the process proceeds to step 122.

In step 122, the value of TIME is set to a predetermined maximum value MA.
Determine whether XT has been reached. MAXT is set to 7 as an example. If the determination result in step 122 is negative (N), the process moves to step 124, and the value of TIME is incremented by 1.

If the determination result in step 120 or 122 is affirmative (Y), or if the process in step 124 is completed, the process returns to the routine shown in FIG.

As an example, in the state of TIME=O, step 1 in FIG.
When KOF=1 at step 12, after entering the routine of FIG.
becomes. Thereafter, each time the routine shown in FIG. 5 is entered, the value of TIME is incremented by one.

When a key-on event occurs during such an increase process, in step 90 of FIG. 4, TDB (T
Musical tone control data is read from C). For example, TIM
, H is "110", the inverted value of TIME becomes 1, and the eight types of musical tone control data (corresponding to LVL value = 0 to 7) specified by KCD and VELO values in Fig. 2. Among them, musical tone control data corresponding to the LVL value=1 is read out. After this, in steps 94 and 96 the KOF
and TIME are both set to O. As a result, one measurement of the time from the start of the musical tone decay to the next key-on has been completed, and the next time measurement is now possible.

In the above example, if it is assumed that the value of TIME becomes 7 in step 124 before the key-on event occurs, then when the routine of FIG.
The determination result is positive (Y), and the TIME value will not increase from then on. Therefore, when a key-on event occurs after this, the inverted value of TIME becomes O in step 90,
Musical tone control data corresponding to an LVL value of 20 (which does not take into account the influence of the previous tone) is read out.

Third Embodiment (Figure 6) Section 6 is a third embodiment in which the routine in Figure 3 is changed from step 60 to step 62 to enable musical tone control according to the pitch difference from the previous note. This shows an example.

In step 50 (FIG. 3), register 0KCD is set to O. Then, after step 60, step 61A
Then, it is determined whether the value of 0KCD is O.

When the key is turned on for the first time after the power is turned on, the determination result in step 61A becomes affirmative (Y), and the process moves to step 61B. Further, when the determination result in step 61A is negative (N), the process moves to step 61C, and it is determined whether the value of LVL is O. For example, as a result of the musical tone being completely attenuated, LVL=
When it becomes 0, the determination result of step 61C is affirmative (
Y), and the process moves to step 61B.

In step 61B, 7 is set in register DIF. Then, the process moves to step 52A.

If the determination result in step 61C is negative (N), the process moves to step 61D. In step BID, as described above, 3-bit pitch difference data is created based on 0KCD and KCD and set in DIF. And K
After setting the CD key code to 0KCD, the process moves to step 62A.

In step 62A, musical tone control data corresponding to the values of VEL, DIF, and KCD is read from the musical tone control data bank TDB (TC) corresponding to the selected tone, and
Send to the assigned channel. In this example, TDB
The storage format of (TC) is slightly changed from that described in FIG. That is, in FIG. 2, the ``rLVL value'' shall be read as ``rDIF value'', and the musical tone control data is arranged so that as the DIF value (pitch difference) increases from 0 to 6, the characteristic fluctuation due to the forenote becomes smaller. TDB
(TC). Furthermore, it is assumed that the musical tone control data corresponding to the DIF value=7 does not take into account the influence of the previous tone.

After step 62A, the process returns to step 64 in FIG.

Fourth Embodiment (FIG. 7) FIG. 7 shows a fourth embodiment in which the routine of FIG. 4 is changed from step 88 to step 90 to enable musical tone control according to the pitch difference from the previous tone. This shows an example.

In step 80 (FIG. 4), register 0KCD is set to 0. Then, after step 88, step 89A
Now, in the same way as in step 61A above, set 0KCD=O.
Determine whether If this determination result is affirmative (Y), the process advances to step 89B. Further, when the determination result in step 89A is negative (N), the process moves to step 89C, and T
Determine whether the IME value is 7. This judgment result is positive (Y
), it means that the key-on occurred after the musical tone had completely attenuated, and the process moves to step 89B.

In step 89B, DIF is set to 7 in the same manner as in step 61B described above. Then, the process moves to step 9OA.

If the determination result in step 89C is negative (N), it means that a key-on occurred while the musical tone was decaying, and the process moves to step 89D. In step 89D, similar to step 61D described above, pitch difference data is created and set in DIF, and the KCD key code is set in 0KCD. Then, the process moves to step 9OA.

In step 90A, musical tone control data corresponding to the values of VEL, DIF, and KCD is read from the musical tone control data bank TDB (TC) corresponding to the selected tone, and
Send to the assigned channel. In this example, TDB
The storage format of (TC) is similar to that described above with respect to step 62A. After step 90A, the process moves to step 92 in FIG.

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

(1) The musical tone control data may be created by calculation instead of being created in advance and stored in a memory or the like.

(2) The present invention can also be implemented in an electronic musical instrument that can simultaneously produce multiple tones. In this type of electronic musical instrument, for example, different tones can be assigned to the upper key region and the lower stitch region, so it is only necessary to perform musical tone control in consideration of the influence of the previous tone for each key region.

[Effects of the Invention] As described above, according to the present invention, musical tones are generated in a manner that reflects characteristic fluctuations due to fore-tones, so it is possible to faithfully imitate the continuous sound of a natural musical instrument such as a piano. , the effect of making it possible to generate natural-sounding musical tones can be obtained.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the circuit configuration of an electronic musical instrument embodying the present invention, FIG. 2 is a diagram showing the storage format of the musical tone control data bank in the memory 14, and FIG. 3 is a main block diagram according to the first embodiment. Flowchart showing the routine; FIGS. 4 and 5 are flowcharts showing the main routine and timer interrupt routine according to the second embodiment; FIGS. 6 and 7 are changes to the routine in FIG. S3 and FIG. 4, respectively. 12 is a flowchart showing third and fourth embodiments according to the present invention. 10...Bus, 12...Central processing unit, 14...
Data and program memory, 16... Working memory, 18A... Keyboard, 18... Key press detection circuit, 2
0... Initial touch detection circuit, 22A... Function switch group, 22... Operation detection circuit, 24... Sound source, 28... Waveform generation circuit, 30... Envelope generation circuit, 32... - Level detection circuit, 42... timer.

Claims (1)

[Scope of Claims] 1. (a) Information generation means for generating performance information indicating each musical tone to be generated; (b) Information generation means for generating performance information in accordance with the performance information from this information generation means. (c) sound source means for generating an instructing musical tone signal; (c) as the two pieces of performance information are sequentially generated from the information generating means; (d) musical tone control data corresponding to the remaining amount determined by this means, taking into account the characteristic fluctuations that the previous musical tone exerts on the subsequent musical tone by the amount corresponding to the remaining amount; (e) data generating means for generating a signal created to represent the characteristics of the subsequent musical tone; An electronic musical instrument comprising: a control means for imparting characteristics expressed by the musical tone control data to the musical tone signal by controlling the musical tone signal. 2. The means for determining the remaining amount has a detection means for detecting the level of the musical tone signal corresponding to the previous performance information when the subsequent performance information is generated, and the remaining amount is determined based on the level detected by the detection means. 2. The electronic musical instrument according to claim 1, wherein the remaining amount is determined by calculating the remaining amount. 3. The means for determining the remaining amount includes a timer for measuring the elapsed time from the start of attenuation of the musical tone signal corresponding to the previous performance information, and the timer measures the time when the subsequent performance information is generated. The electronic musical instrument according to claim 1, wherein the remaining amount is determined based on time. 4. (a) Information generating means for generating performance information instructing each musical tone to be generated; (b) Generating a musical tone signal instructing the performance information in accordance with the performance information from the information generating means; (c) as two performance information are sequentially generated from the information generating means, a musical tone signal corresponding to the previous performance information remains when the subsequent performance information is generated; (d) musical tone control data corresponding to the pitch difference detected by the detection means, which corresponds to the pitch difference; data generating means for generating data created to express the characteristics of the subsequent musical tones in consideration of characteristic fluctuations that the preceding musical tones exert on the subsequent musical tones having a pitch difference of (e); ) control means for imparting characteristics expressed by the musical tone control data to the musical tone signal by controlling the characteristics of the musical tone signal corresponding to the subsequent performance information in accordance with the musical tone control data from the data generating means; electronic musical instruments.