JPH10333674A - Instrument for musical performance - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an instrument for musical performance capable of ensuring musical performance in various forms with an easy operation. SOLUTION: When a key switch A provided on a musical performance operator 1 is turned on, musical performance data on a specified track is read out one sound to direct a sound to come out and, when it is turned off, a sound is directed to go off. On the other hand, when a key switch B is turned on, one key play takes place to sustain a sound until the next on-operation is performed. In the one key play, if musical notes are continued at intervals of shorter than one thirty-sixth note, series of musical notes are automatically performed, independently of the operation of the key switches A, B. As a result, one key play in various configuration to conveniently use the key switches A, B is achieved and still a music is properly performed without quick on/off- operation when short musical notes are continued, so that musical performance in various forms is ensured with an easy operation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a performance device suitable for use in electronic musical instruments and the like.

[0002]

2. Description of the Related Art Conventionally, there has been known a performance apparatus for realizing a performance form called "one key play". This “one key play” is, for example, “one key play”
Each time the dedicated performance operation keys provided for
Refers to a form in which a musical piece is played by sounding one note at a time. In such a performance device, performance data representing the pitch and length of each note forming a musical piece is stored in memory for each performance part, and each time a key operation is performed on the performance data of a desired performance part. In addition, the performance data stored in the memory is read out one note at a time and sounded.

[0003]

By the way, in a conventional performance device for realizing such "one-key play", a sound is generated simply by pressing a key (on operation) and then released (off operation). There is a problem that the performance form becomes uniform and monotonous because it only silences the sound, and there are problems such as the need to quickly turn on and off the keys in accordance with short note lengths in the performance data. . In other words, in other words, there is an adverse effect that it is not possible to realize various performance forms by an easy operation.

[0004] The present invention has been made in view of the above circumstances, and has as its object to provide a performance device capable of realizing various performance forms with easy operation.

[0005]

In order to achieve the above object, according to the first aspect of the present invention, performance data representing each note forming a musical composition is stored, and the performance data is stored in a memory of a performance operator. In a performance device that reproduces according to
When the first performance operation element is turned on, the performance data is read out for one note to instruct sound generation, and when the first operation element is turned off, the sound data generated by the on operation is instructed to mute. When the first playback instruction means and the second performance operation element are turned on, the performance data is read out for one note to instruct sound generation, and when the second performance operation element is turned on next time, the sound is generated by the previous on operation. Second reproduction instructing means for instructing the silence of the reproduced musical tone, and the performance data reproduced by the first and second reproduction instructing means and the performance data to be reproduced next are connected at intervals shorter than a predetermined note length. In this case, automatic performance means for automatically performing performance data to be reproduced next is provided regardless of the operation contents of the first and second performance operators.

According to the second aspect of the present invention, the first reproduction instructing means is provided when the first performance operation element is turned on. Mute the tone that is being pronounced.

In the invention according to claim 3 dependent on claim 1, the first and second reproduction instructing means may include a case where the performance data read out in response to an on operation constitutes a chord. The performance data of each note constituting the chord is sequentially read, and a tone is instructed in accordance with each read performance data.

Further, according to the invention described in claim 4 dependent on claim 1, the automatic performance means should reproduce next the performance data reproduced by the first and second reproduction instruction means. When the performance data continues at a shorter interval than a predetermined note length, the tone being produced is muted by the first and second reproduction instruction means, and then the performance data to be reproduced next is automatically performed. .

According to the present invention, when the first performance operation element is turned on, the performance data is read out for one note to instruct sound generation, and when the first operation element is turned off, the musical tone generated by the on operation is issued. When the second performance operation element is turned on, the performance data is read out for one note to instruct sound generation, and when the second performance operation element is turned on, the next on operation is performed. A one-key play for instructing to mute the pronounced musical tone is performed. If performance data continues at intervals shorter than a predetermined note length during the one-key play, automatic performance is performed regardless of the operation contents of the first and second performance operators. . Thus, various types of one-key play can be realized by selectively using the operations of the first performance operator and the second performance operator, and when the short note lengths are consecutive, these performance operators can be quickly operated. Since the automatic performance is appropriately performed without performing the above, various performance forms can be performed by an easy operation.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The playing device according to the present invention can be applied not only to well-known electronic musical instruments, but also to digital musical instruments using a computer, musical tone generators using a network, and the like. Hereinafter, a performance device according to an embodiment of the present invention will be described as an example with reference to the drawings.

A. FIG. 1 is a block diagram showing the configuration of a performance device according to an embodiment of the present invention. In this figure, reference numeral 1 denotes a performance operator for one-key play, and two types of key switches A and B
Consists of As will be described later, these two types of key switches A and B instruct a sound generation when the key switch A is pressed (hereinafter, referred to as an ON operation) and released when the key switch A is released (hereinafter referred to as an OFF operation). An operation signal for instructing mute is generated.

On the other hand, the key switch B instructs sound generation once it is turned on, and continues sounding without being silenced even if it is turned off, and then generates an operation signal instructing mute by on operation. . In addition, such key switches A,
A keyboard (not shown) may be used in place of the performance operator 1 consisting of B. In this case, two different keys in the keyboard may be assigned as the key switches A and B.

Reference numeral 2 denotes a panel switch provided on the operation panel. The panel switch 2 includes a power switch for turning on and off the power, a start switch 2a for instructing start / stop of one-key play, a mode switch 2b, and the like. Reference numeral 3 denotes a display unit composed of an LCD panel or the like, on which a setting status and an operation status corresponding to the operation of the panel switch 2 are displayed. Reference numeral 4 denotes a CPU for controlling each unit of the apparatus, and its operation will be described later in detail. Note that the CPU 4 generates a tempo clock by dividing the internal clock, and is configured to control a playback tempo during automatic performance described later using the tempo clock.

A ROM 5 stores various control programs loaded into the CPU 4 and performance data for one-key play. The performance data stored in the ROM 5 describes, for each track corresponding to each performance part, each note that forms a musical piece by a so-called absolute time method. Here, the performance data will be specifically described with reference to FIG. For example, as part of the melody part is shown in FIG. (B), C ₃ sound, D ₃ sounds, when formed from E ₃ sounds and F ₃ sound, the performance data stored in ROM5 is drawing As shown in (b), in the track 1 corresponding to the melody part, each note forming the music is composed of an event for discriminating the pitch and pronunciation / silence, and the timing thereof. Are stored in the order of addresses along the line.

Next, the configuration of the embodiment will be described with reference to FIG. 1 again. In FIG. 1, reference numeral 6 denotes a RAM used as a work area of the CPU 4, and temporarily stores various register / flag data. A waveform ROM 7 stores waveform data of various timbres. Reference numeral 8 denotes a sound source constituted by a well-known waveform memory reading method,
Under the control of PU4, the waveform ROM 8
This is a sound source that reads out waveform data of a predetermined tone color from, and outputs this as tone data. 9 is a D / A conversion,
The tone data output from the sound source 8 is converted into an analog tone signal and output. Reference numeral 10 denotes an amplifier that amplifies the D / A converted tone signal and emits the sound from the speaker SP.

B. Next, the operation of the embodiment will be described with reference to FIGS. Here, first, as an outline of the overall operation, FIG.
After describing the operation of the main routine shown in FIG. 7, each processing routine called in this main routine will be described in detail.

Operation of the Main Routine (Overall Operation) First, when power is turned on to the performance device according to the present embodiment,
The CPU 4 reads out and loads a predetermined control program from the ROM 5, executes the main routine shown in FIG. 3, and advances the processing to step SA1. In step SA1, R
In addition to resetting various registers / flags stored in the AM 6 to zero and setting initial values, an initialization process for giving an instruction to initialize the various registers / flags to the sound source 8 is performed.

Next, at step SA2, when the start switch 2a for instructing start / stop of one-key play is turned on in the panel switch 2, the performance data of other parts other than the part for performing one-key play (for example, An automatic performance process of reading a code backing part, a base part, etc.) from the ROM 5 and performing an automatic performance is performed. Then, in the next step SA3, a one-key play process is performed in which the performance data of the designated part is reproduced one by one according to the on / off operation of the key switches A and B provided on the performance operator 1. Subsequently, in step SA4, for example, other processing such as mode setting in accordance with the operation of the panel switch 2 is performed.
Repeat ~ SA4.

Operation of Interrupt Processing (Tempo Count Processing) Routine The CPU 4 executes the above-described main routine, and performs the interrupt processing shown in FIG. 4 at regular intervals to count the tempo clock. That is,
At regular intervals, the CPU 4 executes the interrupt process of FIG. 4 and proceeds to step SB1 to determine whether or not a new tempo clock has been generated. Becomes "NO", and this routine is completed. On the other hand, if it is under the timing to generate the tempo clock, the determination result is “YES”.
And the CPU 4 advances the process to the next step SB2.
The register CCR for accumulating and storing the tempo clock is 1
After incrementing and moving forward, this routine is completed and the process returns to the main routine.

Operation of Automatic Performance Processing Routine Next, the operation of the automatic performance processing routine will be described with reference to FIG. When the automatic performance processing routine of FIG. 5 is executed via the above-described step SA2, the CPU 4 advances the processing to step SC1, and executes the start switch 2 described above.
The switch state of a is determined. The start switch 2a is turned on and off alternately each time the start switch 2a is pressed. When the switch 2a is set to ON,
The result of the determination in step SC1 is "YES", the process proceeds to step SC2, and the bit for the automatic performance flag stored in the register APF is inverted. On the other hand, if the start switch 2a is turned off or not operated, the process proceeds to step SC3 described later.

At step SC3, it is determined whether or not the automatic performance flag stored in the register APF is "1". The automatic performance flag indicates whether or not to perform one-key play. When the flag is "0", the automatic performance is stopped, and when the flag is "1", the automatic performance is in progress. Therefore, in step SC3, it is determined whether the automatic performance is in progress.

(A) When automatic performance is stopped For example, when the start switch 2a is set to off,
If the automatic performance is stopped, the result of the determination in step SC3 is "NO", the flow proceeds to step SC4, and after instructing stop of the generation of the tempo clock, the flow proceeds to step SC5.
This routine is completed by resetting the registers and flags related to the automatic performance.

(B) When the automatic performance is in progress On the other hand, if the automatic performance is in progress, the above-described step S
The result of the determination at C3 is "YES", and the CPU 4 advances the process to step SC6. In step SC6, it is determined whether or not the event timing specified by the address stored in the register MAR matches the tempo count value stored in the register CCR. That is, the performance data of the part to be automatically played is stored in the register MAR.
An address for reading from the OM5 is stored, and the event timing and the register C corresponding to this address are stored.
It is determined whether or not there is an event read timing at which the tempo count value stored in the CR matches.

Here, if it is time to read the event, the result of the determination at step SC6 is "YES", and the CPU 4 advances the processing to the next step SC7, and according to the address stored in the register MAR, the ROM 5
From the corresponding event (see FIG. 2B).
Next, proceeding to step SC8, it is determined whether or not the read event is "end" indicating the end of the music. Here, if it is not “end”, the determination result is “NO” and the process proceeds to step SC9.

In step SC9, the sound source 8 is instructed to generate (or mute) a tone having a pitch defined by the event read from the ROM 5. Thereafter, the process proceeds to step SC10, in which the register MAR is incremented and stepped to read the next event. Then, after that, the process returns to step SC6, and it is determined again whether or not it is under the event reading timing. Here, if it is not the event read timing, the determination result is "NO", and this routine is completed once and the process returns to the main routine. Note that the above step SC
In step 8, even if the read event is "end" indicating the end of the performance data, this routine is completed and the process returns to the main routine.

As described above, in the automatic performance processing routine,
When the start switch 2a is set to ON, the performance data other than the one-key-play part is sequentially read from the ROM 5 in accordance with the timing synchronized with the tempo count value obtained by accumulating the tempo clock. The performance data of each part other than the part to be played is automatically played.

Operation of One Key Play Processing Routine Next, the operation of the one key play processing routine will be described with reference to FIG. When the one-key play processing routine of FIG. 6 is executed through step SA3 described above, C
PU4 advances the process to step SD1, and registers APF
It is determined whether or not the automatic performance flag stored in is "1". When the start switch 2a is set to ON and the one-key play mode is selected,
The automatic performance flag becomes “1”. In this case, the determination result is “YES”, and the process proceeds to the next Step SD2. If the one-key play mode has not been set, the result of the determination in step SD1 is "NO", and this routine is completed without performing any processing.

In step SD2, it is determined whether the one-key play part performance flag stored in register APF2 is "1". The one-key play part performance flag is a flag indicating whether or not the performance data of the part performing the one-key play is automatically performed, and is "0".
Indicates that the mode is in a mode in which the performance data of the part performing the one-key play is not automatically played.
At the time of, it indicates that the player is in the mode of performing automatically. This flag is set by the operation of a fast-play phrase automatic performance processing routine, which will be described later. More specifically, when a musical note to be played has a series of notes at intervals of 36th note length or less, it is automatically set. A flag is set to automatically play the note.

Now, for example, it is assumed that the one-key play part performance flag is set to "1", that is, the mode is set to a mode in which the one-key play part is automatically played. Then, the determination result of step SD2 becomes “YES”,
The process advances to step SD3 to execute a fast-play phrase automatic performance processing routine (described later). On the other hand, if the mode is one in which the one-key play part is not automatically played, the result of determination in step SD2 is "NO",
4 advances the processing to and after step SD4, and performs the above-mentioned one-key play performance operator 1, ie, key switches A and B.
A one-key play process corresponding to the operation is performed.

In step SD4, the operation state of the key switch A is determined. When the switch A is turned on, the process proceeds to step SD5, where a switch A on processing routine described later is executed.
Then, the process proceeds to step S6, where a switch A-off processing routine described later is executed. If no key switch A is operated, the process proceeds to step SD7.

Then, when the flow advances to step SD7, the CPU
4 determines the operation state of the key switch B, and when the switch A is turned on, proceeds to step SD8 and executes a switch B on processing routine described later. on the other hand,
When the key switch B is turned off or not operated, the process proceeds to step SD3, where a quick-play phrase automatic performance processing routine described later is executed. After execution of the switch B ON processing routine in step SD8, the CPU
Reference numeral 4 executes a fast-play phrase automatic performance processing routine via the step SD3.

As described above, in the one-key play processing routine, various one-key plays are realized according to various states. In addition to the one-key play in response to the operation of the key switches A and B, a quick-play phrase automatic operation described later is performed. By the operation of the performance processing routine, one-key play is assisted when notes with short note lengths are continuous. Hereinafter, detailed operations of various routines called in the one-key play processing routine will be sequentially described.

Switch A On Processing Routine Now, in the above-described one-key play processing routine,
When the key switch A is turned on, the CPU 4 executes a switch A on processing routine shown in FIG. 7 via step SD5, and advances the processing to step SE1. In step SE1, the sound source 8 is instructed to mute all musical tones that match the key code stored in the register NR2.
The register NR2 is a register for storing a key code of a musical tone to be instructed to generate a sound in response to an on-operation of a key switch B described later. After that, the CPU 4 advances the process to step SE2 to clear the contents of the register NR2.
That is, in steps SE1 and SE2, prior to executing the process corresponding to the ON operation of the key switch A,
The state when the key switch B is turned on is reset.

Next, when the flow advances to step SE3, the CPU
4 reads the performance data (event and timing data) of the one-key play part from the ROM 5 according to the read address stored in the register MBR. Then, in a subsequent step SE4, it is determined whether or not the read event is "end" indicating the end of the music. Here, if the end of the song is not reached, the judgment result is "N
O ", the process proceeds to the next step SE5, but if it is" end "indicating the end of the song, the judgment result is" YE
S ", and the process proceeds to Step SE11 (see FIG. 8) described later.

First, if the read event is not the end of the music, the CPU 4 proceeds to step SE5, and determines whether or not the read event is an "on event" for instructing sound generation. Here, if the read event is an “on event” for instructing sound generation, the determination result is “Y
ES ”, the process proceeds to step SE6 shown in FIG. 8, and the timing data corresponding to the current event (“ ON event ”) is stored in the register TGR. After this, C
PU4 proceeds to step SE7, where the "on event"
Is stored in the register NR1 in accordance with the address stored in the register NR1A.

Next, in step SE8, the address stored in the register NR1A is incremented. In step SE9, the read address stored in the register MBR is incremented. And step SE
10, the timing data corresponding to the current read address (MBR) and the immediately preceding read address (MBR-
It is determined whether or not the timing data corresponding to 1) matches. That is, it is determined whether the current event and the previous event are under the same timing.

If the current event and the previous event are under the same timing, the result of the determination at step SE10 is "Y
ES ”, and the process returns to step SE3 (see FIG. 7) to read the current event. On the other hand, if the current event and the previous event are not at the same timing, the determination result in step SE10 is “NO”, the process proceeds to the next step SE11, and the register NR
The tone generator 8 is instructed to generate musical tones corresponding to all the key codes stored in the tone generator 1. Therefore, when a plurality of "ON events" are consecutive at the same timing, that is, when the musical tones to be formed constitute a chord, the processing of steps SE3 to SE10 described above is repeated, and each tone constituting the chord is reproduced. The key code is set in the register NR1. After this, when the event is no longer under the same timing,
These are pronounced through step SE11.

If the read event is an "off event", the result of the determination at step SE5 is "NO", the process proceeds to step SE9, and the read address stored in the register MBR is incremented. After the advance, in step SE10, it is determined whether the current event and the previous event are under the same timing. Here, when the current event and the previous event are both “off events” and are under the same timing, only the event reading is updated via step SE9, and no processing is performed in this case. The tone generation corresponding to the previous on-event is continued.
On the other hand, when a new "on event" appears at the same timing as the previous "off event", that is, when a new musical tone is generated, a new tone is generated by the processing of steps SE3 to SE10 described above. The key code of the musical tone to be set is set in the register NR1, and this is emitted through step SE11.

Next, the operation of the switch A off processing routine will be described with reference to FIG. As described above, when the key switch A is turned off in the one-key play processing routine (see FIG. 6), the CPU 4 executes the switch A off processing routine shown in FIG. 9 via step SD6 and proceeds to step SF1. Proceed with the process. In step SF1,
The sound source 8 is instructed to silence all musical tones that match the key code stored in the register NR1, and in the following step SF2, all key codes stored in the register NR1 are cleared.

Thus, when the key switch A is turned off, all the musical tones being sounded are uniquely muted. Therefore, in the one-key play using the key switch A, as in the related art, the musical tone under the tone generation timing is generated according to the ON operation, and the musical tone is maintained until the OFF operation is performed.
When the off operation is performed, the performance mode is such that the sound is muted.

Operation of Switch B On Processing Routine Next, the operation of the switch B on processing routine will be described with reference to FIGS. As described above, when the key switch B is turned on in the one-key play processing routine (see FIG. 6), the CPU 4 proceeds to step SD.
Then, the switch B ON processing routine shown in FIG. 10 is executed through the step 8 and the process proceeds to step SG1. In step SG1, the tone generator 8 is instructed to mute all musical tones that match the key code stored in the register NR2. In the following step SG2, the contents of the register NR2 are cleared.

When the register NR2 is reset in this way, the CPU 4 proceeds to step SG3, where the register MBR
The performance data (event and timing data) of the one-key play part is read from the ROM 5 according to the read address stored in the ROM 5. Next, step SG4
Then, it is determined whether or not the read event is "end" indicating the end of the music. Here, if the read event is not “end”, the judgment result is “N”.
O ", and the process proceeds to the next step SG5.
If it is “end” indicating the end of the song, the judgment result is “Y
ES ”, and the process proceeds to step SG11 described later (see FIG. 11).

First, if the read event is not the end of the song, the CPU 4 proceeds to step SG5, and determines whether or not the read event is an "on event" for instructing sound generation. Here, if the read event is “ON event”, the determination result is “YES”,
The process proceeds to Step SG6, and the timing data corresponding to the current event (“ON event”) is stored in the register TGR.
Store in Thereafter, the CPU 4 proceeds to step SG7 shown in FIG. 11, and stores the key code corresponding to this “ON event” in the register NR2 according to the address stored in the register NR2A.

Next, in step SG8, the address stored in the register NR2A is incremented, and in the following step SG9, the read address stored in the register MBR is incremented. Then, step SG
10, the timing data corresponding to the current read address (MBR) and the immediately preceding read address (MBR-
It is determined whether or not the timing data corresponding to 1) matches. That is, it is determined whether the current event and the previous event are under the same timing.

If the current event and the previous event are under the same timing, the result of the determination in step SG10 is “Y
ES ”, and the process returns to step SG3 (see FIG. 10) to read the current event. on the other hand,
If the current event and the previous event are not at the same timing, the result of the determination at step SG10 is "NO", the process proceeds to the next step SG11, and the register N
The tone generator 8 is instructed to generate musical tones corresponding to all key codes stored in R2. Therefore, when a plurality of “ON events” are consecutive at the same timing, that is, when the musical tones to be produced constitute a chord, the processing of steps SG3 to SG10 described above is repeated, and the respective sounds constituting the chord are repeated. The key code is set in the register NR2, and thereafter, when the event is no longer under the same timing,
These are sounded through step SG11.

If the read event is an "off event", the result of the determination at step SG5 is "NO", the process proceeds to step SG9, and the read address stored in the register MBR is incremented. After proceeding, it is determined in step SG10 whether the current event and the previous event are under the same timing. Here, when the current event and the previous event are both “off events” and are under the same timing, only the event reading is updated via step SG9, and in this case, no processing is performed. The tone generation corresponding to the previous on-event is continued.
On the other hand, when a new “on event” appears at the same timing as the previous “off event”, that is, when a new musical tone is generated, the above-described step S is performed.
By the processing of G3 to SG10, the key code of the musical tone to be newly generated is set in the register NR2, and this is generated through step SG11.

As described above, in the key switch B ON processing routine, when the key switch B is turned on, the musical tone of the ON event read at the time when the ON operation is performed is generated, and the tone is output until the next ON operation is performed. Lasts. Then, when the next ON operation is performed, the previously-sounded musical tone is muted, and a new ON-event musical tone is produced.

Operation of Automatic Playing Phrase Automatic Performance Processing Routine Next, the operation of the automatic playing phrase automatic performance processing routine will be described with reference to FIGS. As described above, when the fast-play phrase automatic performance processing routine shown in FIG. 12 is started via step SD3 in the one-key play processing routine (see FIG. 6), the CPU 4 firstly stores the one-key play stored in the register APF2 in step SH1. It is determined whether or not the part performance flag is “1”. As described above, the one-key play part performance flag is a flag indicating whether or not the performance data of the part for which the one-key play is performed is automatically performed. When the flag is "0", the performance data of the part for which the one-key play is performed is automatically performed. It indicates that the player is in a mode in which no performance is performed, while "1" indicates that the player is in a mode in which automatic performance is performed.

In a mode in which the one-key play part is not automatically played, since the one-key play part performance flag is "0", the result of the determination in step SH1 is "NO", and the process proceeds to the next step SH2. Step S
In H2, the most recent key-on event after the current address stored in the register MBR is searched from the one-key play part performance data stored in the ROM 5. In step SH3, it is determined whether or not there is a key-on event to be searched. If there is no corresponding key-on event, the determination result is "NO", and this routine is once completed. On the other hand, when the corresponding key-on event exists, the determination result of step SH3 is “YE
S ", and proceeds to the next step SH4.

At step SH4, the CPU 4 determines the timing of the searched key-on event and the register TG.
The difference from the timing stored in R, that is, the number of tempo clocks (time interval) from the current performance timing to the next key-on event is calculated, and this is stored in the register Δt as a note interval. Next, in step SH5, the searched key-on event timing data is set in the register TGR to update the contents of the register TGR. In the following step SH6, the note interval stored in the register Δt is set to “6 (tempo clock number)”. )), That is, in the case of a musical piece whose quarter note length is set to “48 (the number of tempo clocks)”, it is determined whether or not the note interval is larger than the 32nd note length.

If the note interval is greater than the 32nd note length, the result of this determination is "YES". In this case, no processing is performed, and this routine is completed. The determination result is "NO", and the flow advances to the next Step SH7. Proceeding to step SH7, CP
U4 sets the one-key play part performance flag stored in the register APF2 to "1". As a result, a transition is made to a mode in which the one-key play part is automatically played.
Next, in step SH8, an address corresponding to the searched key-on event is set in the register MBR,
In a succeeding step SH9, the note interval stored in the register Δt is added to the register CCR for accumulating and storing the tempo clock.

As described above, in the mode in which the one-key play part is not automatically played, it is determined whether or not the note interval until the next key-on event is greater than the "32nd note length". When the next key-on event arrives at a long time, the mode is set so that the musical tone corresponding to the key-on event is automatically played regardless of the operation of the key switches A and B. In this embodiment, when the note interval is smaller than the "32nd note length", the mode is set so that the next note is automatically played. However, the note interval is not fixed, and is set by the user. It can be set arbitrarily.

When the mode for automatically playing the one-key play part is set as described above, the result of the determination made in step SH1 is "YES", and the CPU 4 advances the process to step SH10 shown in FIG. In step SH10, it is determined whether or not the value of the register TMR matches the value of the register CCR, that is, whether or not the next key-on timing has been reached. Here, when the next key-on timing has not been reached, the judgment result is "N
O ", and this routine is once completed.

On the other hand, when the next key-on timing is reached, the result of the determination in step SH10 is "YES", and the process proceeds to step SH11. Step SH1
In step 1, a corresponding event (key-on event) is read from the ROM 5 based on the address stored in the register MBR. Then, in a step SH12, it is determined whether or not the read event is "end" indicating the end of the music. Here, if the read event is not “end”, the process proceeds to the next step SH13, in which the read address stored in the register MBR is incremented and stepped.

Next, in step SH14, it is determined whether the timing data corresponding to the current read address (MBR) matches the timing data corresponding to the immediately preceding read address (MBR-1), that is, the current event and the previous event Is determined under the same timing.
If the current event and the previous event are under the same timing, the above-mentioned SH is executed to read out the current event.
11, the process returns to step SH1 if the current event and the previous event are not at the same timing.
The process proceeds to 5.

In step SH15, the one-key play part instructs the sound source 8 to mute all tones being sounded. In step SH16, the key code of the sound generated according to the operation of the key switches A and B is executed. Is cleared from the registers NR1 and NR2 that store. When the tone generated in response to the operation of the key switches A and B is muted in this manner, the CPU 4 proceeds to the next step SH17 and executes the event read out for automatic performance. Thereafter, the process proceeds to step SH18,
After resetting the one-key play part performance flag stored in the register APF2 to zero, the above-described step SH is performed.
2 (see FIG. 12).

As described above, in the fast-play phrase automatic performance processing routine, the note interval between key-on events is "3".
If the length is shorter than a half note length, the musical tone corresponding to the key-on event is automatically played without depending on the operation of the key switches A and B.
Even beginners unfamiliar with operation B) can enjoy one-key play without musical unnaturalness.

As described above, in the present embodiment, in the one-key play mode, when the key switch A is turned on, the performance data of the designated track is read out for one sound to instruct sounding, When the key switch A is turned off, a sound mute is instructed, and when the key switch B is turned on, a one-key play process is performed to continue sounding until the next on operation is performed. Then, in this one-key play processing, when notes are consecutively arranged at intervals shorter than the length of the 36th note, the series of notes is automatically played regardless of the operation of the key switches A and B.

Accordingly, various types of one-key play can be realized not only by simply sounding and muting the sound in response to the on / off operation of the key, but also by appropriately using the operation of the key switches A and B, as in the related art. In addition, when a series of short note lengths is performed, the music is properly played without the need for quick on / off operation, so that various playing modes can be performed with easy operation.

[0060]

According to the present invention, various types of one-key play can be realized by properly using the operations of the first performance operator and the second performance operator. Since the automatic performance is appropriately performed without operating these performance operators quickly, various performance modes can be performed by easy operations.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment according to the present invention.

FIG. 2 is a diagram showing an example of performance data stored in a ROM 5;

FIG. 3 is a flowchart showing an operation of a main routine.

FIG. 4 is a flowchart showing an operation of an interrupt processing routine.

FIG. 5 is a flowchart showing the operation of an automatic performance processing routine.

FIG. 6 is a flowchart showing an operation of a one-key play processing routine.

FIG. 7 is a flowchart showing an operation of a switch A ON processing routine.

FIG. 8 is a flowchart showing an operation of a switch A ON processing routine.

FIG. 9 is a flowchart showing the operation of a switch A off processing routine.

FIG. 10 is a flowchart showing the operation of a switch B ON processing routine.

FIG. 11 is a flowchart showing an operation of a switch B ON processing routine.

FIG. 12 is a flowchart showing the operation of a fast-play phrase automatic performance processing routine.

FIG. 13 is a flowchart showing the operation of a fast-play phrase automatic performance processing routine.

[Explanation of symbols]

Reference Signs List 1 performance operators A, B key switches (first and second performance operators) 2 panel switches 3 display unit 4 CPU (first and second playback instruction means, automatic performance means) 5 ROM 6 RAM 7 waveform ROM 8 sound sources

Claims (4)

[Claims] 1. A performance device for storing performance data representing each note forming a musical piece and reproducing the performance data in response to an operation of a performance operator, wherein the first performance operator is turned on. In this case, the first reproduction instructing means reads out the performance data for one note and instructs sound generation, and instructs to mute the tone generated by the on operation when turned off, and a second performance When the operation element is turned on, the performance data is read out for one note to instruct sound generation, and when the operation element is turned on next, a second sound instructing to mute the tone generated by the previous on operation. When the performance data reproduced by the first and second reproduction instructing means and the next performance data to be reproduced continue at intervals shorter than a predetermined note length, the first and second performance operations are performed. In child operation A performance apparatus comprising: automatic performance means for automatically performing performance data to be reproduced next regardless of the content. 2. The apparatus according to claim 1, wherein said first reproduction instructing means silences a tone being produced by said second reproduction instructing means when a first performance operation element is turned on. A playing device as described. 3. The first and second reproduction instruction means,
When the performance data read in response to the on operation constitutes a chord, the performance data of each note constituting the chord is sequentially read, and a tone is instructed in accordance with each read performance data. 2. The playing device according to 1. 4. The automatic performance means, when the performance data reproduced by the first and second reproduction instruction means and the performance data to be reproduced next are continuous at intervals shorter than a predetermined note length. 2. The musical performance apparatus according to claim 1, wherein the musical tone being generated is muted by the second reproduction instructing means, and then the performance data to be reproduced next is automatically performed.