JP2002251185A - Device and method for automatic musical performance - Google Patents

Abstract

PROBLEM TO BE SOLVED: To actualize a device and a method for automatic musical performance which can immediately repeat reproduction through one operation. SOLUTION: When repeated reproduction is indicated by turning on a repeat switch RTS during the automatic musical instrument, music data of four measures determined by tracing back by two measures from the measure at the point of time of the indication are repeatedly reproduced, so the repeated reproduction can immediately be performed by one operation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art Conventionally, music data composed of event data representing the pitch, tone generation timing, tone color, etc. of each sound to be played has been stored in memory for each performance track corresponding to a performance part. There is known an automatic performance apparatus which sequentially reads out music data for each performance track stored in the memory in synchronization with a set reproduction tempo and performs an automatic performance.

[0003]

In such an automatic performance device, music data for lessons is stored in a memory for a user who is unfamiliar with the performance operation, and the key operation is actually performed while reproducing and listening to the music data. There are many things that you can go and practice. As a function to assist such performance practice, a repeat playback function for repeatedly playing back song data of a specified bar in a lesson song is also realized.

By the way, in order to use the repeat playback function, it is necessary to temporarily stop the automatic performance (song data playback), return the song data to a position before the bar to be repeatedly played, and then repeatedly play the music data. You must specify the beginning and end of the measure, respectively. For this reason, there is a problem that such a series of operations is cumbersome and cannot be used easily, and that repeat reproduction cannot be performed immediately.
The present invention has been made in view of such circumstances, and an object of the present invention is to provide an automatic performance device and an automatic performance method capable of instantaneous repeat reproduction with one-touch operation.

[0005]

In order to achieve the above object, according to the first aspect of the present invention, a bar line representing the pitch and sounding timing of each sound forming a music piece and corresponding to a bar of the music piece. Music data storage means for storing music data including a number; automatic performance means for sequentially reading out the music data stored in the music data storage means for automatic performance; and automatic performance means for automatically performing the automatic performance. If the repeat playback execution is instructed during this time, the music data between the start end which is a predetermined number of measures earlier than the measure line number in the music data at the time of the instruction and the end which is advanced by a certain number of measures from the start end And a repeat reproduction instructing means for instructing the automatic performance means to repeatedly reproduce the same.

According to the second aspect of the present invention, music data including a bar line number corresponding to a bar of the music is sequentially read out from the music data storage means while indicating a pitch and a sounding timing of each sound forming the music. If an instruction is made to execute repeat playback during an automatic performance process in which the automatic performance is being performed, and during the automatic performance in the automatic performance process, a predetermined measure is determined from the bar line number in the music data at the time of the instruction. A repeat reproduction instructing step for instructing the automatic performance step to repeatedly reproduce the music data between the start end which is several minutes back and the end which is advanced by a certain number of measures from the start end.

According to the third aspect of the present invention, there is provided a music data storage means for storing the music data including a bar line number corresponding to a bar of the music, while indicating a pitch and a sounding timing of each sound forming the music. Automatic performance means for sequentially reading out the music data stored in the music data storage means and automatically performing the music data, and instructing the execution of the repeat reproduction in response to the pressing operation of the operation element, and the time during which the operation element is continuously depressed. Execution instructing means for designating a corresponding playback range; and when the automatic instructing means instructs repeat execution execution while the automatic performance means is in the process of performing the automatic performance, the music data in the music data at the time of the instruction is instructed. Music data between the start end of the measure line number and the end of the play range designated by the execution instruction means from the start end. Characterized by comprising the repeated reproduction instruction means for instructing said automatic performance device as.

According to the present invention, music data including a bar line number corresponding to a bar of the music is sequentially read out from the music data storage means while indicating a pitch and a sounding timing of each sound forming the music. An automatic performance process of automatically performing a repeat play in response to a press operation of an operator, and an execution instruction process of designating a playback range corresponding to a time during which the operator is continuously pressed. While the automatic performance is progressing in the process, if the repeat playback execution is instructed by the execution instruction process,
The music data located between the beginning of the measure line number in the music data at the time of the instruction and a predetermined number of measures ahead of the measure and the end of the execution instruction process advanced from the start end by the reproduction range specified by the execution instruction process are repeatedly reproduced. A repeat reproduction instruction process for instructing the automatic performance process.

According to the fifth aspect of the present invention, the event representing the pitch and the sounding timing of each sound forming the music,
Song data storage means for storing song data having a bar line number corresponding to a bar of a song; automatic performance means for sequentially reading song data stored in the song data storage device for automatic performance; and key operation Key events that occur in response to
Discriminating means for comparing the event in the music data read by the automatic playing means to determine the presence or absence of a key operation error; and When a mistake is detected, in the music data, the music data between the start end which is a predetermined number of measures earlier than the measure line number including the key operation error event and the end which is advanced by a certain number of measures from the start end is added. Repeat playback instructing means for instructing the automatic performance means to perform repeated playback.

[0010] In the invention according to claim 6, an event representing the pitch and the sounding timing of each sound forming the music,
An automatic performance process of sequentially reading song data having a bar line number corresponding to the bar of the song from the song data storage means and automatically performing; a key event generated in response to a key operation;
A discriminating step of comparing the event in the music data read out in the automatic performance step to determine whether or not there is a key operation error; and a discriminating step during the automatic performance in the automatic performance step. When a key operation error is detected in the music data, the music data between the start end of the measure line number including the event of the key operation error by a predetermined number of measures and the end advanced by a certain number of measures from the start end And a repeat reproduction instructing step for instructing the automatic performance step to repeatedly reproduce the music data in the above.

In the first invention, when the execution of the repeat playback is instructed during the progress of the automatic performance, when the repeat line is instructed from the measure line number in the music data at the time of the instruction by a predetermined number of measures, and from the start end, Since the music data located between the end and the end of a predetermined number of measures is repeatedly played back, it is possible to immediately repeat-play with one-touch operation.

In the second invention, while the automatic performance is in progress, the execution instructing means instructs the execution of the repeat reproduction in response to the pressing operation of the operator, and the execution instructing means sets the time during which the operator continues to be pressed. When a corresponding playback range is designated, the playback range is between the start end of the bar number in the music data at the time of the designation and a predetermined number of measures earlier and the end of the playback range specified by the execution instruction means from the start end. Since the music data is repeatedly reproduced, a desired range can be immediately and repeatedly reproduced by one-touch operation.

In the third invention, if a key operation error is detected while the automatic performance is in progress, a predetermined number of measures from the bar line number containing the key operation error event in the music data. Since the music data between the starting point that is traced back and the ending point that is advanced by a certain number of bars from the starting point is repeatedly played, the user automatically repeats the practice where the key operation error is likely to occur without any additional operation. It becomes possible.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The automatic performance device according to the present invention can be applied to not only a well-known electronic musical instrument but also a DTM device using a personal computer. Hereinafter, an automatic performance device according to an embodiment of the present invention will be described as an example, which will be described with reference to the drawings.

A. FIG. 1 is a block diagram showing the configuration of an embodiment according to the present invention. In FIG. 1, reference numeral 1 denotes a panel switch group including various switches arranged on a console panel, and generates a switch event corresponding to each switch operation. This event is captured by a key scan of the CPU 3 described later. The main switches provided in the panel switch group 1 include a power switch (not shown) and a song selection switch for selecting song data corresponding to a desired lesson song from a plurality of types of song data that are factory preset. In addition to the SSS, a start / stop switch STS for instructing start / stop of automatic performance and a repeat switch R for instructing execution / stop of repeat reproduction are provided.
TS, etc.

Reference numeral 2 denotes an LCD provided on the console panel
A display driver configured to control the display of the LCD panel in accordance with a display control signal supplied from the CPU 3, and displays an operation state and a setting state according to the operation of the panel switch group 1 on the screen; indicate. CPU
Reference numeral 3 denotes a panel switch group 1 which executes various control programs stored in the ROM 4 and is fetched by key scanning.
Of the apparatus in accordance with each switch operation (switch event), and forming a musical tone in response to a key event of the keyboard 6 captured by key scanning. The characteristic processing operation will be described in detail later. I will describe.

The ROM 4 stores various control programs to be loaded into the CPU 3, and also stores various tone data and music data of various lesson songs that are factory preset (1).
To (N) are stored. The music data stored in the ROM 4 is formed in a so-called relative time format. An example will be described with reference to FIG. The music data illustrated in FIG. 2 includes timing data Δt representing a relative time from a previous event, a bar line number BN for identifying a bar break, and event data EVT representing a pitch to be sounded in association with the music progression. Addressing is performed in chronological order, and the end of the address is provided with END data indicating the end of the music. In addition,
Although not shown in FIG. 2, each piece of music data (1) to (N)
Has header data including attribute information (for example, a start address) related to the song, in addition to the song number and song title, and refers to the contents of the header data when selecting a song.

The RAM 5 temporarily stores various register / flag data used for the processing of the CPU 3. The keyboard 6 generates a key event corresponding to a key press / release operation. Reference numeral 7 denotes a sound source constructed by a well-known waveform memory reading method, which generates a tone signal corresponding to the music data read from the ROM 4 by the CPU 3 in synchronism with the reproduction tempo during automatic performance, and corresponds to a key event during normal operation. The CPU 3 generates a tone signal according to tone parameters generated by the CPU 3. Reference numeral 8 denotes a sound system in which a tone signal output from the sound source 7 is D / A-converted, amplified, and then output as a tone from a speaker.

B. Next, the operation of the embodiment will be described with reference to FIGS. Hereinafter, first, the operation of the main routine will be described as an overall operation, and then the operations of various processes called from the main routine will be sequentially described.

(1) Operation of the Main Routine (Overall Operation) When power is turned on in the embodiment having the above configuration, the CPU 3
Loads a predetermined control program from the ROM 4 and
Is executed, the process proceeds to step SA1, and various registers / flags stored in the RAM 5 are reset, initial values are set, and various registers / flags are initialized for the tone generator 7. Execute the specified initialization. When the initialization is completed, the CPU 3 proceeds to the next step SA2,
Various switch processes corresponding to switch operations in the panel switch group 1 are performed.

Next, at step SA3, a keyboard process for instructing the sound source 7 to generate / mute sound according to a key press / release operation on the keyboard 6 is executed. Subsequently, in step SA4, when the automatic performance start instruction is given, the music selection switch S
Automatic performance processing is performed in which the music data of the selected lesson music is reproduced in accordance with the operation of the SS to automatically perform. Thereafter, the process proceeds to step SA5, and after executing other processes such as displaying the operation state of the apparatus on the display unit 2 in response to a switch operation, the process returns to step SA2. Until the device power is turned off, step SA2
Repeat ~ SA5.

(2) Operation of the switch processing routine Next, the operation of the switch processing routine will be described with reference to FIGS. When the switch processing routine shown in FIG. 4 is executed through step SA2 described above, CP
U3 executes "tune selection switch processing", "start / stop switch processing", "repeat switch processing" and "other switch processing" through steps SB1 to SB4. Hereinafter, the operation for each switch process will be described.

Operation of the music selection switch processing routine When the music selection switch processing routine shown in FIG. 5 is executed via step SB1 in FIG. 4, the process first proceeds to step SC1, and the start flag STF becomes "0", that is, ,
It is determined whether or not the automatic performance is stopped. The start flag STF is a flag set in a start / stop switch process (see FIG. 6) described later, and when the value is "1", indicates that automatic performance has started (or automatic performance is in progress). , "0" indicates that the automatic performance is stopped.

If it is determined in step SC1 that the automatic performance is started, the result of the determination is "NO" in order to invalidate the operation of the music selection switch SSS, and this routine is completed without performing any processing. On the other hand, when the automatic performance is stopped, the determination result of step SC1 is “YES”.
The process proceeds to the next step SC2, and it is determined whether or not the music selection switch SSS has been turned on. In addition,
The song selection switch SSS is composed of, for example, numerical input keys and cursor keys. In response to an ON operation of these keys, a desired one of song data (1) to (N) of various lesson songs stored in the ROM 4 is selected. A switch for selecting song data.

If the music selection switch SSS is not turned on, the result of the determination in step SC2 is "NO", and this routine is completed. If the switch is turned on, the result of the determination is "YES", and step SC3 is performed. Processing proceeds. In step SC3, the music selection switch SSS
Is stored in a register N (hereinafter, the value of the register N is referred to as a music number N). Subsequently, in step SC4, a song name corresponding to the song number N,
The attribute information relating to the music is read from the ROM 4 and displayed on the display unit 2 on a screen. As described above, in the music selection switch processing, when the automatic performance is stopped, the music selection switch SS
When the operation of S is enabled and the switch is operated in the automatic performance stop state, the header data added for each piece of music data is read from the ROM 4 and the contents thereof are displayed on the screen.

Operation of Start / Stop Switch Processing Routine When the start / stop switch processing routine shown in FIG. 6 is executed via step SB2 in FIG. 4, the processing proceeds to step SD1, and the start / stop switch ST
It is determined whether S has been turned on. If the ON operation is not performed, the determination result is “NO”, and this routine is completed without performing any processing. However, if the ON operation is performed, the determination result is “YES”, and the process proceeds to the next Step SD2. In step SD2, the start flag STF is inverted. In other words, the start / stop switch STS functions as a so-called toggle switch that is alternately turned on / off each time the start operation is performed. Therefore, the start flag STF is inverted each time the start operation is performed. ing.

Next, in step SD3, it is determined whether or not the inverted start flag STF is "1", that is, whether or not the automatic setting is in an ON state for instructing the start of automatic performance. Here, if the inverted start flag STF is "0", that is, if it is in the off-setting state instructing the stop of the automatic performance, the determination result is "NO", and the process proceeds to step SD4 where the sound source 7
After instructing the CPU to mute all musical tones being produced, this routine is completed.

On the other hand, if it is in the ON setting state instructing the start of the automatic performance, the judgment result is "YES", the process proceeds to Step SD5, and the process proceeds to Step SD5, and the process proceeds to Step SD5. The start address included in the music data (header data) to be read is read from the ROM 4 and stored in the address pointer ADD. Next, at step SD6, the address pointer ADD
The music data is read from the ROM 4 according to the above, and the read music data, that is, the timing data Δt at the beginning of the music is stored in the register TIME, and this routine is completed. As described above, in the start / stop switch processing routine, when the start / stop switch STS is turned on in response to the ON operation of the start / stop switch STS, the start / stop switch STS corresponds to the music number N selected by the music selection switch SSS. The head data (timing data Δt) in the music data is read from the ROM 4.

Operation of Repeat Switch Processing Routine Next, the operation of the repeat switch processing routine will be described with reference to FIGS. Step SB3 described above
When the repeat switch processing routine shown in FIG. 9 is executed via FIG. 4 (see FIG. 4), the processing advances to step SE1, and it is determined whether or not the start flag STF is "1", that is, whether or not the automatic performance has started. I do. Here, if the automatic performance is stopped, the determination result is "NO", and this routine is completed without performing any processing. On the other hand, if the automatic performance is in progress, the determination result is "YES", and the flow advances to the next Step SE2 to determine whether or not the repeat switch RTS has been turned on. If the ON operation has not been performed, the determination result is “NO”, and this routine is completed.
If the switch is turned on, the determination result is “YES”, and the process proceeds to the next Step SE3.

At step SE3, the repeat flag RP
F is inverted. That is, like the start / stop switch STS, the repeat switch RTS functions as a so-called toggle switch that is set to be turned on / off alternately each time the switch is turned on. Therefore, the repeat flag RPF is set according to the on operation. It is designed to be inverted. Next, at step SE4, the inverted repeat flag R
It is determined whether or not the PF is “1”, that is, whether the PF is in an ON setting state instructing execution of repeat reproduction. If the inverted repeat flag RPF is "0", that is, if it is in the off-setting state instructing the stop of the repeat reproduction, the result of this determination is "NO", and this routine is completed.

On the other hand, if it is in the ON setting state instructing the execution of the repeat reproduction, the judgment result is “YES”, and
The process proceeds to step SE5. In step SE5,
"2" from bar line number BN stored in register BAR
Is subtracted, and the value is set in the register RBAR as a bar line number corresponding to the start of the section for repeat reproduction.
In other words, a bar line number two bars back from the bar line number BN at the time when the repeat switch RTS is turned on during the automatic performance is set to the beginning of the section for repeat reproduction. Note that the register BAR stores a bar number BN whose performance is in progress by an automatic performance process described later.

Next, at step SE6, the register RB
It is determined whether the value stored in the AR is smaller than “0”. That is, it is determined whether or not the bar line number two bars back from the bar line number BN at the time when the repeat switch RTS is turned on is smaller than “0”. When the bar number is smaller than “0”, the judgment result is “YE”.
S ", and proceeds to the next step SE7, where the register RB
After resetting the value of AR to zero and setting the beginning of the section to be repeatedly played back to the bar at the beginning of the music, the process proceeds to step SE8. On the other hand, if the measure line number two measures earlier than the measure line number BN at the time when the repeat switch RTS is turned on is not smaller than “0”, the result of the determination in step SE6 is “NO”, and the process proceeds to step SE8. Proceed.

In step SE8, "2" is added to the bar line number BN stored in the register BAR, and the value is set in the register EBAR as the bar line number corresponding to the end of the section for repeat reproduction. That is, a bar line number two bars ahead of the bar line number BN at the time when the repeat switch RTS is turned on during the automatic performance is set to the end of the section for repeat reproduction. Then, the process proceeds to Step SE9, and the sound source 7 is stopped to temporarily stop the automatic performance.
Instructs all tones to be silenced.

When the start and the end of the section to be repeated are automatically designated and the automatic performance is paused in response to the ON operation of the repeat switch RTS, the CP
In steps SE10 to SE18 shown in FIG. 8, U3 searches for the read address of the music data corresponding to the start and end of the section to be repeatedly reproduced. That is,
First, in step SE10, the value of the address pointer ADD is decremented. In the next step SE11, the ROM is read in accordance with the decremented address pointer ADD.
4. The type of the song data read from No. 4 is the bar line number BN
Or any other one. If it is other than the bar number BN, the process returns to step SE10.

In this way, the value of the address pointer ADD is sequentially decremented until the bar line number BN is read from the ROM 4. When the bar line number BN is read, the result of the determination in step SE11 becomes "YES". The process proceeds to SE12, and it is determined whether or not the read bar line number BN matches the value of the register RBAR. Measured bar line number BN and register RBAR
If the value does not match, the determination result is “NO”,
The process returns to step SE10, and thereafter the register R
Steps SE10 to SE12 are repeated until the bar line number BN corresponding to the value of BAR is read from the ROM 4.

When the bar line number BN corresponding to the beginning of the section to be repeated is searched, the above-described step S is performed.
The decision result in E12 becomes "YES", and the step SE1 is executed.
The process proceeds to step S3, and the value of the address pointer ADD at that time is stored in the register RADD. Thereby, the read address of the music data corresponding to the start end of the repeat reproduction section is secured in the register RADD. After that, register RADD
Is described as a start address RADD.

Next, in steps SE14 to SE18,
A read address of music data corresponding to the end of the repeat playback section is searched. That is, in step SE14, the value of the address pointer ADD is incremented and the step is incremented. In the next step SE15, the type of the song data read from the ROM 4 in accordance with the incremented address pointer ADD is the bar line number BN and the song number. E for the end
It is determined whether the data is ND data or other data (timing data Δt and event data EVT). If the read music data is “other (timing data Δt and event data EVT)”, the process returns to step SE14.

In this way, the value of the address pointer ADD is sequentially incremented until the bar line number BN is read from the ROM 4. When the bar line number BN is read, the process proceeds to step SE16, where the read bar line number BN is read. Is equal to the value of the register EBAR. Measured bar number BN and register EBAR
If the value does not match, the determination result is “NO”,
The process returns to step SE14, and the register R
Steps SE14 to SE16 are repeated until the bar line number BN corresponding to the value of BAR is read from the ROM 4. When the bar line number BN corresponding to the end of the repeat playback section is searched, the result of the determination in step SE16 becomes "YES", and the flow advances to step SE17.
The value of the address pointer ADD at that time is stored in the register EAD.
Store in D. As a result, the read address of the music data corresponding to the end of the repeat reproduction section is set in the register EA.
DD is reserved. Hereinafter, the contents of the register EADD will be referred to as an end address EADD.

By the way, if "END data" indicating the end of the music is read from the ROM 4 before the bar line number BN corresponding to the end of the repeat reproduction section is found, the process proceeds to step SE18, and the processing proceeds to step SE18. The value obtained by decrementing the value of the address pointer ADD reaching the end by 1 is
Store in the register EADD as the end address.

When the start address RADD and the end address EADD of the repeat reproduction section are determined as described above, the CPU 3 proceeds to step SE19 shown in FIG. 9 and sets the start address RADD to the address pointer ADD.
Set as Next, in step SE20, the type of the music data read from the ROM 4 according to the address pointer ADD is the timing data Δt and Δt
Is determined. If it is not Δt, the process proceeds to step SE21 to determine whether the type of the music data is the bar line number BN or the event data EVT. If the measure line number is BN, the process proceeds to step SE22, where the measure line number BN is stored in the register BAR. In the subsequent step SE23, the address pointer ADD is incremented and the process returns to step SE20.

On the other hand, the incremented address pointer ADD
If the music data read from the ROM 4 is the event data EVT, the process proceeds to step SE24, where the event data EVT is sent to the sound source 7, and the subsequent step SE24.
At 23, the address pointer ADD is incremented, and the process returns to step SE20. And step SE
In step 20, if the music data read from the ROM 4 in accordance with the incremented address pointer ADD is the timing data Δt, the process proceeds to step SE25, where the timing data Δt is stored in the register TIME, and this routine is completed.

As described above, in the repeat switch processing routine, only by turning on the repeat switch RTS, the start address RADD and the end address EADD of the section in which four measures are repeated and reproduced by two measures from the time when the repeat switch RTS is turned on. Is set automatically. If the measure cannot be traced back two measures from the time of the ON operation, the measure at the beginning of the song is regarded as the beginning of the repeat playback section. On the other hand, if the measure cannot be advanced by two measures from the time of the ON operation, Is to regard the address immediately before the end of the music piece as the end of the repeat playback section.

(3) Operation of Keyboard Processing Routine Next, the operation of the keyboard processing routine will be described with reference to FIG. When the keyboard processing routine shown in FIG. 10 is executed through step SA3 (see FIG. 3), C
PU3 proceeds to step SF1, and performs key scanning. Subsequently, in step SF2, the presence or absence of a key change is determined based on the result of the key scanning. If there is no key change, it is determined that the key press / release operation has not been performed, and this routine is completed.

On the other hand, if an ON event corresponding to the key depression operation is detected, the process proceeds to step SF3,
A note-on event including a note number that generated the on-event and a note-on for instructing sound generation is created. On the other hand, if an off event corresponding to the key release operation is detected, the process proceeds to step SF4, and a note-off event including a note number that generated the off event and a note-on for instructing mute is created. And after creating a note-on event or note-off event,
Proceeding to step SF5, the created event is sent to the sound source 7, and sounding / silencing corresponding to the key press / release operation is instructed.

(4) Operation of Automatic Performance Processing Routine Next, the operation of the automatic performance processing routine will be described with reference to FIGS. When the automatic performance processing routine shown in FIG. 11 is executed via the above-described step SA4 (see FIG. 3), the CPU 3 advances the processing to step SG1 and sets the start flag STF to "1", that is, instructs the start of the automatic performance. Determine whether it is in the ON setting state.
Here, if it is in the OFF setting state instructing the stop of the automatic performance, the determination result is "NO", and this routine is completed. If it is in the ON setting state, the determination result is "YES", and the next step SG2 Processing proceeds. Step S
In G2, it is determined whether or not the time of the minimum clock cycle has elapsed, that is, whether or not the time of one cycle of the timer clock (minimum clock cycle) generated by the timer interrupt process (not shown) has elapsed. .

If the time corresponding to the minimum clock cycle has not elapsed, the determination result is "NO", and this routine is once completed. On the other hand, when the time corresponding to the cycle has elapsed, the determination result is “YES”, and step S
Proceeding to G3, the timing data Δt stored in the register TIME is decremented. Then, step SG
In step 4, it is determined whether the value of the decremented register TIME is "0", that is, whether or not the sound generation timing has been reached. If the sounding timing has not been reached, the determination result is "NO", and this routine is completed. On the other hand, if it is under the sounding timing, the judgment result is
ES ”, the process proceeds to Step SG5, and the value of the address pointer ADD is incremented and the value is incremented.

Next, at step SG6, the repeat flag RPF becomes "1", that is, the repeat switch RT
It is determined whether S is in the ON setting state instructing the execution of repeat reproduction. If it is not in the ON setting state instructing execution of repeat reproduction, the determination result is “NO”, and the process proceeds to step SG9 described later. On the other hand, if it is in the ON setting state for instructing the execution of the repeat reproduction, the judgment result is “Y
ES ”, and the process proceeds to Step SG7. In step SG7, the address pointer ADD incremented in step SG5 is set to the end address EA described above.
It is determined whether or not DD has been reached. Address pointer AD
If D has not reached the end address EADD, the determination result is "NO", and the process proceeds to Step SG9 described later. On the other hand, when the address pointer ADD reaches the end address EADD, the determination result is “YE
S ", and returns the address pointer ADD to the start address RADD described above.

Next, in step SG9 (see FIG. 12), it is determined whether or not the music data read from the ROM 4 is the timing data Δt according to the address pointer ADD. The read music data is the timing data Δt
, The determination result is “YES”, and the process proceeds to the next step SG10, where the timing data Δt is stored in the register TIME, and then this routine is once completed. On the other hand, the read music data is the timing data Δt.
Otherwise, the determination result of step SG9 is "NO".
, And the process proceeds to Step SG11. In step SG11, it is determined whether the type of the music data read from the ROM 4 is the bar line number BN, the event data EVT, or the END data according to the address pointer ADD.

If the read music data is the bar line number BN, the process proceeds to step SG12, the bar line number BN is stored in the register BAR, and the process returns to step SG5 shown in FIG. If the read music data is the event data EVT, the process proceeds to step SG13. After the event data EVT is sent to the sound source 7, the process returns to step SG5 shown in FIG. If the read music data is the END data indicating the end of the music, the process proceeds to step SG14, and instructs the sound source 7 to mute all the musical tones being sounded in order to stop the automatic performance. Proceeding to step SG15, with the stop of the automatic performance, the start flag STF and the repeat flag RPF are both reset to zero to complete this routine.

As described above, according to the present embodiment, when the repeat switch RTS is turned on to instruct the execution of repeat playback during the progress of the automatic performance, when the repeat playback is instructed, two measures are advanced from the measure at the time of the instruction by four measures. Since the music data is repeatedly reproduced, it is possible to immediately repeat the reproduction by one-touch operation. As a result, as in the conventional case, the automatic performance is temporarily stopped, the song data is returned to a point before the measure to be repeatedly played, and then the start and end of the measure to be repeatedly played are designated in the song data. This eliminates the need for a series of operations.

In the above-described embodiment, in response to the ON operation of the repeat switch RTS, the music data for four measures is repeatedly played back two measures from the measure at the time of instructing the execution of the repeat reproduction. As described above, not only the fixed range is repeatedly played back, but also the range to be repeatedly played back may be variably set in accordance with, for example, how long the repeat switch RTS is kept pressed. In this way, a desired range can be immediately and repeatedly reproduced by one-touch operation.

In this embodiment, the repeat switch R
Although the repeat playback execution is instructed using the operator called TS, the key of the keyboard 6 may be used instead as the operator for instructing the repeat playback execution. As an aspect, for example, in a case where music data of a desired lesson music is automatically played and a key operation is actually performed while listening to the music data, the music data is compared with a key event to determine the presence or absence of a key press error. When a key-press error occurs, the music data for four measures is automatically played back two measures backward from the measure containing the key-depressed event. In this way, the user can automatically and repeatedly practice the part where the key is erroneously pressed without any special operation.

[0053]

According to the first and second aspects of the present invention, when repeat playback execution is instructed while the automatic performance is in progress, a predetermined number of measures from the measure line number in the music data at the time of the instruction are given. Since the music data between the starting end that goes back by an amount and the end that is advanced by a certain number of measures from the starting end is repeatedly played back, the repeat playing can be immediately performed by one-touch operation. According to the third and fourth aspects of the present invention, while the automatic performance is in progress, the execution instructing means instructs the execution of the repeat reproduction in response to the pressing operation of the operation element, and the operation element is pressed. When the playback range corresponding to the continuation time is designated, the start end of the bar number in the music data at the time of the designation is advanced by a predetermined number of measures, and the end of the playback range specified by the execution instruction means from the start end is advanced by the playback range. Since the music data in between is repeatedly reproduced, a desired range can be immediately and repeatedly reproduced by one-touch operation. According to the fifth and sixth aspects of the present invention, when a key operation error is detected while the automatic performance is in progress, a predetermined number is determined from the bar line number including the key operation error event in the music data. Since the music data between the beginning that goes back by the number of measures and the end that goes ahead by a certain number of measures from the beginning is repeated, the user automatically repeats the key operation mistake easily without any special operation. You can practice playing.

[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 a configuration of music data.

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

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

FIG. 5 is a flowchart showing the operation of a music selection switch processing routine.

FIG. 6 is a flowchart showing an operation of a start / stop switch processing routine.

FIG. 7 is a flowchart showing the operation of a repeat switch processing routine.

FIG. 8 is a flowchart showing the operation of a repeat switch processing routine.

FIG. 9 is a flowchart showing an operation of a repeat switch processing routine.

FIG. 10 is a flowchart showing the operation of a keyboard processing routine.

FIG. 11 is a flowchart showing the operation of an automatic performance processing routine.

FIG. 12 is a flowchart showing an operation of an automatic performance processing routine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Panel switch group 2 Display part 3 CPU 4 ROM 5 RAM 6 Keyboard 7 Sound source 8 Sound system

Claims (6)

[Claims] 1. A music data storage means for storing music data including a bar line number corresponding to a bar of a music, while indicating a pitch and a sounding timing of each sound forming the music, Automatic performance means for sequentially reading out stored music data and automatically performing; while the automatic performance means is performing automatic performance,
When the repeat playback is instructed, the music data between the start end which is a predetermined number of measures earlier than the bar line number in the music data at the time of the instruction and the end which is advanced by a certain number of measures from the start end is repeatedly reproduced. And a repeat reproduction instructing means for instructing the automatic performance means to perform the operation. 2. An automatic performance process in which music data including a bar line number corresponding to a bar of a music is sequentially read out from music data storage means, and an automatic performance is performed. During the automatic performance in this automatic performance process,
When the repeat playback is instructed, the music data between the start end which is a predetermined number of measures earlier than the bar line number in the music data at the time of the instruction and the end which is advanced by a certain number of measures from the start end is repeatedly reproduced. And a repeat reproduction instructing step for instructing the automatic playing step to perform the automatic playing step. 3. A music data storage means for representing the pitch and sounding timing of each sound forming the music and storing music data including a bar line number corresponding to a bar of the music, and An automatic performance means for sequentially reading the stored music data and automatically performing the operation; and instructing execution of repeat playback in response to a pressing operation of an operation element, and designating a reproduction range corresponding to a time during which the operation element is continuously depressed. Execution instruction means, while the automatic performance means is performing automatic performance,
When the repeat instruction is instructed by the execution instructing means, the start end of the bar number in the music data at the time of the instruction is advanced by a predetermined number of measures, and the reproduction range designated by the execution instructing means is advanced from the start end. And a repeat reproduction instructing unit for instructing the automatic performance unit to repeatedly reproduce the music data located between the end and the end. 4. An automatic performance process in which music data including a bar line number corresponding to a bar of a music is sequentially read out from music data storage means, and an automatic performance is performed. An execution instruction step of instructing execution of repeat playback in response to a pressing operation of the operation element and specifying a reproduction range corresponding to a time during which the operation element is continuously depressed, and an automatic performance progresses in the automatic performance step. While doing,
When the repeat instruction execution is instructed by the execution instruction process, the start end which is a predetermined number of measures earlier than the bar line number in the music data at the time of the instruction and the reproduction range designated by the execution instruction process from the start end are advanced. A repeat playback instructing step of instructing the automatic performance step to repeatedly play back the music data between the end of the automatic performance and the music data. 5. A music data storage means for storing music data including an event representing a pitch and a sounding timing of each sound forming a music, and a bar line number corresponding to a bar of the music. An automatic performance means for sequentially reading out the music data stored in the storage means and automatically performing; a key event generated in response to a key operation; and comparing the event in the music data read by the automatic performance means with a key operation error. Determination means for determining the presence or absence of, while the automatic performance means is performing an automatic performance,
When the discriminating means detects a key operation error, in the music data, the start end of the measure line number including the event of the key operation error by a predetermined number of measures and the end end advanced by a certain number of measures from the start end. An automatic performance device comprising: a repeat reproduction instructing unit that instructs the automatic performance unit to repeatedly reproduce music data in between. 6. An automatic performance by sequentially reading out music data including an event indicating a pitch and a sounding timing of each sound forming a music and a bar line number corresponding to a bar of the music from the music data storage means. An automatic performance process, a key event generated in response to a key operation, and an event in song data read in the automatic performance process to determine whether or not there is a key operation error; While the automatic performance is progressing at
If a key operation error is detected in the discrimination process, the music data includes, in the music data, a starting point that is a predetermined number of measures earlier than the measure line number including the event of the key operation error, and an end that is advanced by a certain number of measures from the starting end. And a repeat reproduction instructing step of instructing the automatic performance step to repeatedly reproduce the music data existing between the automatic performance method and the automatic performance method.