JP3142434B2 - Electronic musical instrument sequencer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sequencer for an electronic musical instrument which records performance information generated by playing an electronic musical instrument such as an electronic piano or an electronic organ and reproduces the recorded performance information. The present invention relates to a sequencer for an electronic musical instrument that can easily record and reproduce performance information.

[0002]

2. Description of the Related Art In recent years, the development of electronic musical instruments and their attached devices has been remarkable. As one of such electronic musical instruments, recording is performed by storing performance information generated by a player playing an electronic musical instrument or the like. In addition, a sequencer capable of reproducing a musical sound by reading out stored performance information and sending it to an electronic musical instrument or the like has been put to practical use.

Such a conventional sequencer has a storage medium such as a random access memory (RAM), a magnetic tape, or a magnetic disk for storing performance information sent from an electronic musical instrument or the like.

[0004] The storage medium is provided with a plurality of storage areas for storing performance information corresponding to music, so that a plurality of music can be stored.

[0005] Each storage area is assigned a unique number "tune number", and a desired storage area is specified by the music number to perform recording or reproduction.

However, when recording performance information in a sequencer having such a configuration, first, a predetermined switch is operated to select a desired music number (storage area), and then a predetermined switch is operated to operate a desired track. The recording destination is specified by selecting.

When the switch for instructing the start of recording is pressed, the sequencer is set to the recording mode,
Performance information generated by, for example, playing an electronic musical instrument as an external device is input to the sequencer, and the performance information is stored in an area specified by a song number and a track.
That is, recording is performed.

At the time of reproduction, a desired storage area is specified by the music number, and performance information is read out from the storage area and transmitted to, for example, an electronic musical instrument, thereby reproducing a musical tone. . At this time, the tempo to be reproduced is specified, and the musical tone can be reproduced at a desired tempo or rhythm.

Therefore, at the time of recording, it is necessary to set information indicating the song number in the sequencer, and at the time of reproduction, it is necessary to set information indicating the song number and the tempo in the sequencer.

Further, in order to set these various information, the conventional sequencer has a display, a cursor movement switch, a numerical value change operator and the like.

In the display state of the display, for example, when it is desired to change the music number, the operator operates the cursor movement switch to move the cursor to a position where the default value of the music number is displayed.

Next, the desired music number is displayed by operating the numerical value changing operator. As a result, music number information is set. At this time, the cursor remains displayed on the portion indicating the default value of the song number.

Similarly, when the operator wants to change the tempo, the operator operates the cursor movement switch to move the cursor to the position where the default value of the tempo is displayed, and then operates the numerical value changing operator to change the desired tempo. Display the tempo value of

Thus, tempo information is set. At this time, the cursor remains displayed on the portion indicating the default value of the tempo.

As described above, the sequencer function of the conventional electronic musical instrument is independent, and it is troublesome for a maniac to set a track to be recorded and edit a recorded song, so that it is difficult for beginners to approach and expensive. Tend to be.

Therefore, when recording performance information on a sequencer or reproducing the recorded performance information, a low-cost sequencer which can be easily recorded and played back by a simple operation and which is easy to operate even for a beginner. Is desired.

[0017]

As described above, the conventional sequencer has a drawback in that it is necessary to select a song number and a track when recording performance information, and the operation is troublesome.

Further, the operator has to remember the use condition of the music number and the track, and designates an empty music number and a track to perform recording.

The present invention has been made in view of the above circumstances, and has as its object to minimize the number of switches and the number of operations so that recording is always performed during a performance, and a reproduction instruction such as a switch or an operation element is provided at the start of reproduction. It is an object of the present invention to provide a sequencer of an electronic musical instrument which is easy to handle even for beginners who can easily select a reproduced music piece by operating the means.

[0020]

FIG. 1 is a diagram illustrating the principle of the present invention.

In order to achieve the above object, the first invention has a storage means 3 for storing performance information for each music piece, and stores the performance information supplied from the input section in the storage means to record the performance information. In a sequencer of an electronic musical instrument that reads out and reproduces performance information corresponding to a predetermined music from the storage means, the power supply is turned on, and a recording standby state is established. A recording control unit 21 for sequentially writing in an empty area and, when full, selecting a storage area in which an old song is stored and sequentially overwriting the same; a break processing unit 23 for detecting a break in the song and performing end processing;
Playback instruction means 2 for instructing playback of music by operating
0, and playback control means 22 for reading out the performance information stored in the storage means 3 when the playback instruction means 20 is operated. Is performed, the recording control means 21 also stores the performance information of the music to be reproduced.

[0022]

According to a second aspect of the present invention, the reproduction control means 22 comprises:
When the reproduction instruction means 20 is operated during reproduction of a musical tone, the reading of the performance information is terminated and stopped.

In the third invention, the storage means 3 has a management table for managing a storage area, and the recording control means 21
Is characterized by examining the contents of the table, and if there is no free area, always overwrites the area in which the oldest performance information is stored, and reproduces the music recorded immediately before during reproduction.

According to a fourth aspect of the present invention, the storage means 3 constitutes a ring buffer, and when there is no free area, the memory means 3 always overwrites the area in which the oldest performance information is stored. It is characterized by playing a song.

According to a fifth aspect of the present invention, the break processing means 23
Is characterized in that when there is no sound for a certain period of time, a break in the music is automatically detected and recording is terminated.

According to a sixth aspect of the present invention, the break processing means 23
Is characterized in that a break operation is instructed by a switch operation and a break operation of the music is performed.

In a seventh aspect, the reproduction control means 22 comprises:
It is characterized in that an arbitrary music can be selected according to the set position of the reproduction instruction means 20 or the number of operations.

[0029]

[0030]

[0031]

According to the first aspect of the present invention, the sequencer function provided in the conventional electronic musical instrument is largely omitted, and the number of switches is reduced as much as possible only to the recording and reproduction functions. An electronic musical instrument sequencer capable of recording and reproducing is provided.

For this reason, the sequencer of the present invention enters a recording standby state when the power is turned on, and when the keyboard is operated, the recording control means 21 stores an empty area, or stores old performance information if there is no empty area. The selected storage area is automatically selected and the performance information is stored.

At the start of reproduction, the reproduction instructing means 2
When "0" is operated, the reproduction of the music is instructed, and the performance information recorded immediately before among the performance information stored in the storage means 3 is read and reproduced. In the first invention, during the performance of the music, both the performance music and the reproduced sound are recorded.

Therefore, it is not necessary to start recording or to specify a storage area from which data is read, unlike the related art, and it is not necessary for the operator to operate the switch again. Further, a variety of recording methods can be provided, and the recording method can be selected in accordance with the purpose of use of the musical instrument. Further, the functions can be selected with one musical instrument.

According to a second aspect of the present invention, when the reproduction instruction means 20 is operated during reproduction of a musical tone, the reading of the performance data is terminated. As a result, the playback instruction means 20 has a function of a stop switch, so that the structure of the electronic musical instrument and the number of switches are simplified.

As a result, the previously recorded music is always selected as the reproduced music, so that it is not necessary to perform a selection operation for each music, and the music can be reproduced quickly and easily, and the operability is easy for beginners to handle. An excellent sequencer can be provided.

According to the third and fourth aspects of the present invention, in the first aspect of the invention, the played music is always overwritten and stored in an empty area or a memory where the oldest music is stored, thereby enabling endless recording and reproduction. It is to be.

For this reason, the third invention is characterized in that the storage means 3
Has a table for managing the used area of the memory, and performs memory management for reading and writing by referring to the memory.

On the other hand, in the fourth invention, since the storage means 3 constitutes a ring buffer, memory management for recording and reproduction can be easily performed simply by moving a pointer next.

According to the third or fourth aspect, a storage area can be selected with a simple structure, and an endless recording function can be realized. The use of the ring buffer facilitates selection of a music piece to be played at the time of reproduction.

[0041]

[0042]

According to a fifth aspect of the present invention, when there is no sound for a certain period of time, the recording is automatically terminated. This saves the player the trouble of instructing the operation at the end of the recording.

According to a sixth aspect of the present invention, the break processing is instructed by operating the break processing switch, and the music break processing is performed. This makes it possible to reflect the player's will.

According to a seventh aspect of the present invention, at the time of reproduction, a pointer indicating a music number is moved in accordance with the set position of the reproduction instruction means 20 or the number of operations, so that an arbitrary music can be selected.

Thus, it is possible to easily select the music to be reproduced according to the setting of the reproduction instructing means 20 or the number of operations, so that the operation for selecting the music is remarkably simple and a flexible electronic musical instrument sequencer is provided. Can be provided.

[0047]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 2 is a block diagram schematically showing an overall configuration of an embodiment of an electronic musical instrument to which a sequencer according to the present invention is applied.

In the figure, 1 is a central processing unit (CPU)
And controls each section of the sequencer according to a control program stored in a program memory section of the ROM 2.

The recording control unit 21, the reproduction control unit 22, and the break processing unit 23 provided in the CPU 1 are realized by software of the CPU 1. When the power is turned on, the recording control unit 21 enters a recording standby state. When a keyboard is operated, a control for selecting an empty area or a storage area in which an oldest music piece is stored and storing performance information is performed. Is what you do.

When the play switch 20 is operated, the playback control section 22 controls the selection of the music number of the music piece recorded immediately before and sounds it. After the reproduction of the music is completed, the pointer is moved to the storage area of the music number of the music played immediately before, and control for preparing for the next performance is performed.

Further, the music break processing unit 23 detects the interval between music pieces and performs end processing. If there is no event for a predetermined time, the end of the performance is automatically determined and the end processing is performed.

For this reason, a break switch is newly provided, or a break processing function is assigned to another switch, and when the switch is operated, the break processing of the music is instructed. The processing may be performed.

The play switch 20 is for instructing reproduction of music. Note that the switch 20 may be configured so that a music piece can be selected according to a set position or the number of times the switch 20 is operated.

That is, the play switch 20 is configured, for example, as a system switch, and
Music can be selected according to the setting position of. Alternatively, the push button or the operating element may be configured such that, for example, the first tune can be selected when pressed once, and the third tune can be selected when pressed three times.

The ROM 2 stores a program for controlling the entire sequencer as described above. Further, in addition to the control program, the ROM 2 has a CPU
1 stores various fixed data used by CP 1.
U1 is accessed via the system bus.

The random access memory (RAM) 3
A work area of the CPU 1, various tables for controlling the sequencer, registers, flags, and the like are defined. The RAM 3 is provided with a storage area for storing performance information and music numbers sent from the outside and an area for storing status information of the apparatus.

In this embodiment, the storage area for storing music numbers is divided into areas corresponding to a predetermined number of music pieces, and each of the divided storage areas is assigned a music number of, for example, "1 to 10". , A pointer indicating a storage area in which the music stored immediately before or the oldest music is stored.

The flags defined in the RAM 3 include a reproduction flag that specifies whether or not the sequencer is being reproduced.

The operation panel unit 5 includes a power switch,
Various switches such as a reset switch and an indicator are provided. The play switch 20 and the break switch 24 are provided on the operation panel section 5. The operation of the switches 20, 24 instructs the start of reproduction, the end of reproduction between performances, and the processing of the break of music.

The panel scan circuit 4 checks the set / reset state of each switch provided on the operation panel section 5, detects panel switch data that is turned on (ON), and sends it to the CPU 1. is there.

The keyboard device 7 comprises a plurality of keys and key switches which are opened and closed in conjunction with the depression and release of these keys. The depression / release operation of the keyboard is detected by the keyboard scanning circuit 6.

The keyboard scanning circuit 6 detects a key press / release operation of the player, that is, on / off of a key, and transmits the detected on / off state to the CPU 1 together with the key number. The CPU 1 stores the key on / off information in a RAM.
3 is stored.

The tone generator 8 reads out tone waveform data and envelope data corresponding to the signal output from the CPU 1 from the waveform memory 9 and adds an envelope to the read tone waveform data to output the tone waveform signal as a tone signal.

The tone signal output from the tone generator 8 is supplied to a digital signal processor (hereinafter referred to as DSP) 10. The tone generator 8 is connected to a waveform memory 9 for storing waveform data and envelope data.

The waveform memory 9 is composed of, for example, a ROM. The waveform memory 9 stores tone waveform data and envelope data corresponding to various timbres and tone ranges.
Accessed by the tone generator 8.

The DSP 10 is constituted by a digital filter, and adds a music effect such as reverb.

The D / A converter 11 converts an input digital tone signal into an analog tone signal. The analog tone signal converted by the D / A converter 11 is
The signal is supplied to the amplifier 12.

The amplifier 12 amplifies the analog tone signal supplied from the D / A converter 11 with a predetermined gain. The output of the amplifier 12 is supplied to a speaker 13.

The speaker 13 converts an analog tone signal as an input electric signal into an acoustic signal. That is, a tone is emitted according to the generated tone signal.

The speaker 13 emits a musical tone corresponding to the depression of the key on the keyboard 7, and plays the designated recording music.

The CPU 1, ROM 2, RAM 3, panel scan circuit 4, keyboard scan circuit 6, and tone generator 8
Are interconnected via a system bus.

Next, the operation of this embodiment having the above configuration will be described with reference to flowcharts.

FIG. 3 is a flowchart showing the overall processing of the sequencer in this embodiment.

The sequencer is initialized by a reset signal generated by turning on the power or pressing a reset switch (not shown) (step S1).
1).

This initialization processing sets the internal state of the tone generator circuit 8 to the initial state to prevent unnecessary sounds from being generated when the power is turned on, clears the work area of the RAM 3, registers, This is a process for initializing data such as a flag, volume, and tone.

The clearing of the sequencer counter, the setting of the data write address, and the start of the recording timer, which are directly related to the present invention, are performed during the initialization processing.

Next, switch event processing is performed (step S12). In this switch event processing, information indicating the on / off state of each switch detected by the scan circuit of the operation panel 5 is fetched.

Then, only the bit corresponding to the newly turned on switch is set by comparing with the information indicating the ON / OFF state of each switch previously taken in (the information is already stored in a predetermined area of the RAM 3). This is a process for creating the on-event map on the RAM 3. In addition,
Details of the operation of the switch event process will be described with reference to FIG.

Next, a keyboard event process is performed (step S13). The keyboard event process is a process of reading key data from a keyboard scan circuit of the keyboard device 7 and setting the key data in a new key buffer.

Then, by comparing the contents of the old key buffer and the contents of the new key buffer, a key event buffer in which a portion corresponding to the operated key is turned on or off is created.

Next, a recording process (REC process) is performed (step S14). This recording process is a process of selecting a song number in a storage area in which a blank or the oldest music piece is stored, and preparing for storing performance information in an area in the RAM 3 corresponding to the specified music number. is there. The details of the operation of the recording process will be described with reference to FIG.

When the recording process is completed, a reproduction process is performed (step S15). This playback process
By a predetermined operation, the performance information corresponding to the music number in the area where the performance information is stored immediately before the RAM 3 is read from the area, temporarily stored in the RAM 3, and the preparation is made to transmit the performance information to the tone generator 8. . The details of the operation of the reproduction process will be described with reference to FIG.

When the above-mentioned reproduction processing is completed, a break processing of music is subsequently performed (step S16). This music break processing will be described in detail with reference to FIG.

Then, other processing is performed (step S17). In the "other processing", processing according to the designation of the switch detected in the switch event processing, the keyboard event processing, and the like, for example, a tone change processing, a rhythm selection processing, a sound generation processing corresponding to a key number, and a mute processing are performed. .

The processing relating to the MIDI, the processing relating to the timer, and the processing of writing to the storage unit are performed by the other processing.

Thereafter, the process returns to step S12, and the same processing is repeatedly executed. As a result, musical tones having a tone corresponding to the operation of the keyboard 7 are continuously generated with a tone and volume corresponding to the operation of the operation panel 5.

Next, the operation of the switch event processing described in step S12 of FIG. 3 will be described with reference to FIG.

In the switch event process, first, it is checked whether or not the play switch 20 has been turned on (step S21). This is performed by examining the event map created by the panel scan process.
If there is no switch event, the process returns to the main routine without doing anything.

On the other hand, if it is determined that there is an ON event of the play switch 20, it is checked whether the event has been performed during the reproduction of the performance information (step S2).
2).

This is a judgment for ending the reproduction when the operation of the play switch 20 is performed during the reproduction of the recorded data, and for starting the reproduction when the operation is performed during the stop of the recording data.
This is performed by checking the play flag.

If it is determined in step S22 that the play switch 20 is operated while the sequencer is stopped, the reproduction is started (step S23).

On the other hand, if the play switch 20 is operated during the reproduction of the sequencer, the reproduction is terminated because the reproduction has been completed (step S24).

Next, other processing is performed (step S25). This "other processing" is processing corresponding to an event detected in the switch event processing or the keyboard event processing, and for example, processing a switch event for tone selection, rhythm selection, volume change, tone change, and the like. It is.

When the processing up to step S25 is completed, the process returns to the main routine, and the next keyboard event processing is performed.

Next, the operation of the recording process described in step S14 of FIG. 3 will be described with reference to FIG. This embodiment shows a case in which only performance information is recorded. Embodiments in which a music piece and a playback sound are simultaneously recorded and a case where recording is not performed during playback of a music piece are shown in FIGS.
Will be described.

In the recording process, when the power is turned on, a recording timer is first started. Subsequently, it is checked whether or not a play switch ON event has occurred (step S3).
1). If there is no ON event, there is no need to record, so the process returns to the main routine.

On the other hand, if there is an on-event, recording is performed, so that a difference between count values is obtained (step S32).
Then, the generated sound recording data is stored (step S).
33). In storing the recorded data, a difference between the new and old count values, a key number, a key on / off, a velocity, and the like are stored as a set.

Next, the address is incremented (step S34). That is, the address is incremented to the position where the next key event is recorded.

Subsequently, the timer is updated (step S
35). That is, the difference of the count value (old value-current value) is stored, and then the data of the new timer is stored in the register of the old timer, and preparations are made for counting the next key event.

Then, the process returns to the main routine to perform the reproducing process.

Next, the operation of the reproduction process described in step S15 of FIG. 3 will be described with reference to FIG.

In the reproduction process, first, it is checked whether or not there is an ON event of the play switch 20 (step S).
41). If there is no ON event of the play switch 20, the process returns to the main routine because the reproduction is not started.

On the other hand, in step S41, the play switch 2
If there is an ON event of 0, playback is started, so the playback start position, that is, the start address of the music is set (step S42).

Subsequently, after setting the count value (step S43), the count value is decremented (step S44). Then, it is checked whether or not the counter value has become 0 (step S45). This is to grasp the timing of sound generation.

If the counter value is not 0, the process returns to step S44 and repeats until the timing of sound generation because the timing of sound generation has not yet been reached.

On the other hand, when the count value is 0, it is the timing of sound generation or mute, so that processing for sound generation or mute is performed (step S46), and then the address is incremented for the next processing. (Step S
47).

Next, it is checked by the music break processing section 23 whether or not the music has ended (step S48). If it is not the end of the song, the process returns to step S42, and the same processing is repeated thereafter.

On the other hand, in the case of the end of the music, the process returns to the main routine and other processing is performed.

Next, the operation of the music break processing described in step S16 of FIG. 3 will be described.

First, an example of music break processing when automatically determining and processing music breaks will be described with reference to FIG.

In the music break processing, first, it is checked whether or not all notes are off (step S51). If it is not all notes off, the program is still playing and no break processing of the music is needed, so the process returns to the main routine.

On the other hand, when all notes are off, a difference between the counter values is obtained (step S52). That is, the count value is read from the registers of the new and old counters, and the difference between the count values is obtained.

Next, it is checked whether or not the difference between the count values is larger than the reference value (step S53). this is,
If there is no key event for a certain reference time or more, it is considered that the recording has been completed, and a determination is made for processing of the recording termination.

If the difference value has not yet reached the reference value in step S53, that is, if the time elapsed since all notes were turned off is shorter than the reference value, recording has not yet been completed, and step S54 is skipped. To return to the recording processing routine.

On the other hand, if the difference value is larger than the reference value in step S53, the performance is over, so that processing for ending the performance, that is, setting of a delimiter code is performed (step S53).
54).

In this set of delimiter codes, the current performance is ended, the storage area to be recorded at the next performance (the free area or the song number of the storage area where the oldest music is recorded), and the next playback This is a process of setting a pointer in a storage area (a song number of a song recorded immediately before) at which reading is started.

When this processing is completed, the process returns to the recording processing routine, and the same processing is repeated thereafter. Thus, the process for ending the recording is completed.

In order to perform the process of step S54, the RAM 3 is provided with a music order memory indicating the music order of the music stored therein, and by moving the pointer on the music order memory, the music breaks are generated. Processing is performed.

In this manner, the music break processing is performed.
Processing for terminating the recording after a fixed time has elapsed since all keys are turned off is automatically performed.

Next, for example, when a break switch for music is provided, or another switch is provided with a function for instructing the processing of a break in music, and the end of the performance is instructed by operating the switch to perform the break processing of music. The operation will be described with reference to FIG.

In this case, it is first checked whether or not there has been a break switch event (step S61). If there is no break switch event, there is no need to perform break processing, and the process returns to the main routine.

On the other hand, if there is a break switch event, the performance is over, so the processing for ending the performance,
That is, a delimiter code is set (step S62).

In this set of delimiter codes, the current performance end processing is performed, and at the same time, a storage area to be recorded at the next performance (an empty area or a music number of a storage area in which the oldest music is recorded) and a next A pointer is set in a storage area (song number of the tune recorded immediately before) at which reading is started during reproduction of. Then, the process returns to the main routine.

Next, the operation of various recording processes will be described.

FIG. 9 is a flowchart for explaining an embodiment in which a music piece and a reproduced sound are simultaneously recorded during the music piece.

When the keyboard event processing of the main routine is completed, it is first checked whether or not a key event has occurred (step S71). That is, by examining the event buffer, if it is a key event, the process proceeds to step S73 to perform recording, and then the address is incremented in preparation for the next recording (step S74).

On the other hand, if there is no key event, it is checked whether or not there is a reproduction event (step S72). If there is no playback event, no recording is performed, so the routine returns from this routine and returns to the main routine.

On the other hand, if it is determined in step S72 that the event is a reproduction event, the recording is performed, so that the performance information is recorded in the memory (step S73), and then the pointer is incremented to the next address in the memory (step S72).
74), returning to the main routine.

As described above, by checking the key event and the reproduction event in the event buffer, it is possible to provide a sequencer of an electronic musical instrument capable of simultaneously recording the performance music and the reproduction sound during the performance of the music.

FIG. 10 is a flowchart for explaining an embodiment in which recording is not performed during reproduction of a music piece.

When the keyboard event processing of the main routine is completed, it is first checked whether or not a key event has occurred (step S81). That is, by examining the event buffer, if there is no key event, there is no need to record, and the process returns to the main routine without doing anything.

On the other hand, if there is a key event, it is checked whether or not the music is currently being reproduced (step S82). This is done by checking the play flag. Since no recording is performed during reproduction, the routine returns from this routine and returns to the main routine.

On the other hand, if the reproduction is not being performed in step S82, the recording is performed, so that the performance information is recorded in the memory (step S83), and then the pointer is incremented to the next address in the memory (step S84). Return to

As described above, by checking the play flag, it is possible to provide a sequencer of an electronic musical instrument capable of recording only during performance of a music piece.

FIG. 11 is a flow chart for explaining an embodiment in which only the performance sound is recorded when the performance and the reproduction of the music are performed simultaneously.

When the keyboard event processing of the main routine ends, it is first checked whether or not a key event has occurred (step S91). That is, by examining the event buffer, if there is no key event, there is no need to record, and the process returns to the main routine without doing anything.

On the other hand, if there is a key event, it is checked whether the event is a reproduction event (step S).
92). If the sound is a reproduction sound, recording is not performed, so that the routine returns from this routine and returns to the main routine.

On the other hand, in the case of the performance sound in step S92, the performance information is recorded in the memory since the recording is performed (step S9).
3) Then, the pointer is incremented to the next address in the memory (step S94), and the process returns to the main routine.

Thus, it is possible to provide a sequencer of an electronic musical instrument capable of recording only a performance sound while performing and playing a tune at the same time.

As described above, according to the present invention, it is possible to provide an easy-to-use electronic musical instrument sequencer in which recording and reproduction operations are easy and a desired tune can be selected.

In the above embodiment, the case where the RAM is used as the memory for storing the performance information has been described, but the memory is not limited to the RAM. For example, a rewritable storage medium such as a floppy disk or a magnetic tape may be used, and the same operation and effect as those of the above embodiment can be obtained.

[0143]

As described above, according to the present invention, it is possible to provide a sequencer of an electronic musical instrument which is simple in structure, inexpensive, easy to operate, and suitable for beginners.

Further, according to the present invention, a desired music can be easily searched by a simple operation at the time of reproduction, so that the applicable range is remarkably improved.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating the principle of a sequencer according to the present invention.

FIG. 2 is a schematic block diagram showing an overall configuration of an electronic musical instrument to which a sequencer according to the present invention is applied.

FIG. 3 is a flowchart of a main routine showing an operation of a sequencer of the electronic musical instrument according to the embodiment.

FIG. 4 is a flowchart illustrating an operation of a switch event process of a sequencer of the electronic musical instrument according to the embodiment.

FIG. 5 is a flowchart illustrating an operation of a recording process of a sequencer of the electronic musical instrument according to the embodiment.

FIG. 6 is a flowchart illustrating an operation of a reproduction process of a sequencer of the electronic musical instrument according to the present embodiment.

FIG. 7 is a flowchart showing an operation of a music break processing of the sequencer of the electronic musical instrument of the embodiment.

FIG. 8 is a flowchart showing an operation of another embodiment of the music break processing of the sequencer of the electronic musical instrument of the present embodiment.

FIG. 9 is a flowchart illustrating an operation of a recording process when simultaneously recording performance data and reproduction data.

FIG. 10 is a flowchart illustrating an operation of a recording process when recording is not performed during reproduction.

FIG. 11 is a flowchart illustrating an operation of a recording process when recording only a performance sound while performing and playing back simultaneously.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 CPU 2 ROM 3 RAM (storage means) 4 Panel scan circuit 5 Operation panel 6 Keyboard scan circuit 7 Keyboard (input means) 8 Sound source circuit (tone generation means) 9 Waveform memory 10 DSP 11 D / A converter 12 Amplifier 13 Speaker Reference Signs List 20 play switch (reproduction instructing means) 21 recording control unit (judgment means) 22 reproduction control unit (reading means)

Claims (7)

(57) [Claims] A recording means for storing performance information supplied from an input unit in said storage means to record a performance information corresponding to a predetermined music piece from said storage means; In a sequencer of an electronic musical instrument for reading and playing performance information, a recording standby state is established when the power is turned on, and when a keyboard is operated, the sequence is sequentially written into an empty area of the storage means. Recording control means for selecting and sequentially overwriting a storage area in the memory, break processing means for detecting a break in the music and performing end processing, reproduction instructing means for instructing reproduction of the music by operating the reproduction instruction, Playback means for reading the performance information stored in the storage means when the means is operated, and when the music is being played back by the instruction of the playback instruction means, It said recording control means, the sequencer of the electronic musical instrument and to store also play information of the song that is the reproduction. 2. The electronic musical instrument according to claim 1, wherein the reproduction control means stops reading the performance information and stops when the reproduction instruction means is operated during reproduction of a musical tone. Sequencer. 3. The storage means has a management table for managing a storage area, and the recording control means checks the contents of the table. If there is no free area, an area in which the oldest performance information is always stored. 3. A sequencer for an electronic musical instrument according to claim 1, wherein the music piece recorded immediately before is reproduced at the time of reproduction. 4. The storage means constitutes a ring buffer, and when there is no free area, always overwrites the area where the oldest performance information is stored, and reproduces the music recorded immediately before at the time of reproduction. The sequencer for an electronic musical instrument according to any one of claims 1 to 3, wherein: 5. The electronic device according to claim 1, wherein the break processing means automatically detects a break in the music and ends the recording when there is no sound for a predetermined time or more. Musical instrument sequencer. 6. The sequencer for an electronic musical instrument according to claim 1, wherein the break processing means is instructed to perform a break processing by operating a switch, and performs a break processing of a music piece. 7. The electronic device according to claim 1, wherein the reproduction control unit can select an arbitrary music piece according to a set position or the number of operations of the reproduction instruction unit. Musical instrument sequencer.