JPH07325569A - Electronic instrument - Google Patents

Abstract

PURPOSE:To provide an electronic instrument separating an external sound source and an internal sound source at every part and capable of sequence performing related to the electronic instrument incorporating a sequencer. CONSTITUTION:This instrument is constituted so as to be provided with a storage means 15 storing the sequence data of plural parts, a specification means 132 specifying the output destination of the sequence data stored in the storage means 15 at every part, a distribution means 104 distributing the sequence data read out from the storage means 15 to a first output destination or a second output destination at every part, musical sound generation means 17, 18, 19 generating musical sounds based on the sequence data distributed to the first output destination by the distribution means and an output means 16 outputting the sequence data distributed to the second output destination to the outside by the distribution means.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic musical instrument incorporating a sequencer.

[0002]

2. Description of the Related Art Recently, an electronic musical instrument having a built-in sequencer has been developed and put into practical use. The sequencer sequentially records, in a sequence memory, performance information (hereinafter, referred to as “sequence data”) obtained by operating a keyboard device or an operation panel, and sequentially reads and reproduces the sequence data as needed. By doing so, a musical sound is automatically generated.

Usually, a sequencer has a plurality of recording tracks. As a result, for example, a plurality of musical tones having different tones such as a rhythm part, a bass part, a strings part, etc. are separately recorded on each track, and
By reproducing these simultaneously, it is possible to perform an automatic performance (for example, automatic accompaniment) of a plurality of parts. Therefore, the performer can enjoy the performance of the electronic musical instrument by playing a specific part, for example, a melody part with a piano tone color, with the reproduced automatic accompaniment sound as a background.

In an electronic musical instrument having such a sequencer, the sequence data stored in the sequence memory is sequentially read out and sequentially transmitted to a sound source (hereinafter referred to as "internal sound source") built in the electronic musical instrument. To be As a result, the internal sound source generates a musical sound corresponding to the sequence data. In addition, in parallel with the musical tone generating operation,
The sequence data read from the sequence memory is transmitted to the outside via, for example, a MIDI interface circuit. Therefore, for example, a sound source module or another electronic musical instrument is connected as an external device, and these sound sources (hereinafter,
It is called "external sound source". If sequence data is given to), it is possible to generate a musical sound by using an external sound source.

[0005]

By the way, when performing a sequence performance of a plurality of parts, in consideration of characteristics and performance of the sound source, an internal sound source is used for a specific part, and an external sound source is used for another part. There are times when you want to let it.

However, in the conventional electronic musical instrument, as described above, since the sequence data is always transmitted to the outside, the internal sound source and the external sound source cannot be separated. Therefore, when the sound is generated using the external sound source, the sound is also generated by the internal sound source. This means that even if an external sound source suitable for pronouncing the musical sound of a specific part is prepared and an attempt is made to use it to produce sound, the internal sound source will also produce sound at the same time. There was a problem that I could not get music.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an electronic musical instrument capable of separating an external sound source and an internal sound source for each part to perform a sequence performance.

[0008]

In order to achieve the above-mentioned object, the invention described in claim 1 is a storage means for storing sequence data of a plurality of parts, and an output destination of the sequence data stored in the storage means. Specifying means for specifying each part, and distribution means for distributing the sequence data read from the storage means to a first output destination or a second output destination for each part according to the specification of the specifying means. , A tone generation means for generating a tone based on the sequence data distributed to the first output destination by the distribution means, and an output for outputting the sequence data distributed to the second output destination by the distribution means to the outside. Means and are provided.

Further, the invention described in claim 2 is characterized in that, for the same purpose as above, the output means converts the sequence data into MIDI data and outputs the MIDI data.

[0010]

According to the first aspect of the present invention, whether the sequence data of each part read from the storage means is sent to the tone generation means or the output means for each part in accordance with the instruction of the instruction means. I have control.

Accordingly, when it is desired to generate a tone of a specific part by using an external sound source, the designation means is used to designate that the sequence data of the particular part is sent to the output means. Is not sounded by the tone generation means as the internal sound source of the electronic musical instrument, but is sounded only by the external sound source. Therefore, unlike in the conventional case, it is not sounded by both the internal sound source and the external sound source, so that the music intended by the performer can be obtained.

Further, in the invention described in claim 2,
When the sequence data is output to the outside, it is converted to MIDI data and output. As a result, a sound source that complies with the standard MIDI standard can be used as the external sound source, and it is possible to provide a versatile electronic musical instrument with a built-in sequencer.

[0013]

Embodiments of the electronic musical instrument according to the present invention will now be described in detail with reference to the drawings. In the following, the configuration and operation when the electronic musical instrument functions as a sequencer will be mainly described. Also, in the following,
An electronic musical instrument having a built-in sequencer for processing four parts (parts 1 to 4) will be described. However, the number of parts is not limited to the above, and any number of parts may be included.

FIG. 1 is a block diagram showing a schematic configuration of an electronic musical instrument incorporating a sequencer according to the present invention. In the figure, 10 is a central processing unit (hereinafter referred to as "CPU"), 13 is an operation panel, 14 is a keyboard device, 15 is a sequence memory, 16 is a MIDI interface circuit,
Reference numeral 17 is a tone signal generator, 18 is an amplifier, 19 is a speaker, and 20 is an external device.

The CPU 10 has a software function,
Alternatively, the key depression detecting unit 100, the keyboard local on / off switching unit 101, the tone generation channel assigning unit 102, the data reading unit 103, the sequencer local on / off switching unit 10 which are realized by the combination of both software and hardware functions.
4 and MIDI data conversion unit 105. Each of these parts will be described in detail below in order.

The keyboard device 14 has a plurality of keys for indicating a pitch. As the keyboard device 14, for example, a two-contact type keyboard device, that is, a keyboard device provided with two key switches that are turned on / off at different pressing depths according to the pressing or releasing of each key is used. be able to.
The keyboard device 14 is connected to the key depression detection unit 100 of the CPU 10. The keyboard device 14 sends a signal indicating the on / off state of the key switch of each key to the key depression detecting unit 100.

The sequence memory 15 corresponds to a storage means and stores sequence data used for automatic accompaniment or the like for each part. In this embodiment, part 1
It is assumed that the sequence data corresponding to the four parts 4 to 4 are stored. This sequence memory 15 is
For example, it can be constituted by a read only memory (hereinafter referred to as "ROM"). The sequence memory 15 is connected to the data reading unit 103 of the CPU 10. The sequence data read from the sequence memory 15 is sent to the data reading unit 103.

The operation panel 13 is for instructing the electronic musical instrument to perform various operations, and is equipped with a plurality of switches, a display and the like. The plurality of switches include a reproduction switch 130, a keyboard local switch 131, and a sequencer local switch 132. Further, the sequencer local switch 132 includes four part switches PART.
1 to PART4. The operation panel 1
Although various switches other than those described above, such as a tone color change switch, a volume change switch, and a rhythm change switch, are provided in 3, the description thereof is omitted because they are not directly related to the present invention.

The reproduction switch 130 is a switch for starting or stopping the sequence performance. More specifically, the reproduction switch 130 includes a data reading unit 1 described later.
It is used to control the start or stop of reading the sequence data in 03.

The keyboard local switch 131 is used to instruct local on / off of the keyboard device 14. That is, when the keyboard local switch 131 is turned on, the key data (details will be described later) generated by operating the keyboard device 14 is sent to the tone generator of the electronic musical instrument, that is, the tone signal generator 17. And a musical sound is generated. On the other hand, when the keyboard local switch 131 is turned off, the key data is not sent to the sound source of the electronic musical instrument but sent to the outside. Therefore, in this case, the keyboard device 1
The musical tones associated with the operation of 4 are not generated by the internal sound source but only by the external sound source.

The sequencer local switch 132 corresponds to the designation means, and is used to instruct local ON / OFF of the sequencer for each part. That is,
When a predetermined part switch PARTi (i = 1 to 4; the same applies to the following) of the sequencer local switch 132 is turned on, the sequence data read from the sequence memory 15 is the sound source of the electronic musical instrument. That is, it is sent to the tone signal generator 17 to generate a tone. On the other hand, when the predetermined part switch PARTi is turned off, the sequence data is not sent to the sound source of the electronic musical instrument but is sent to the outside. Therefore, in this case, the musical tone based on the sequence data is not generated by the internal sound source but is generated only by the external sound source.

The key-depression detection unit 100 of the CPU 10 receives data indicating whether the key is pressed or released, or the key is released, based on a signal sent from the keyboard device 14 indicating the on / off state of the key switch. The initial touch data indicating the key number of the key and the key pressing speed (strength) is detected. The initial touch data is detected as a time difference when two key switches provided for each key are turned on.
Data indicating the distinction between key depression and key release detected by the key depression detection unit 100, key number, and initial touch data (hereinafter, these are collectively referred to as "key data").
Is a keyboard local on / off switching unit 101 and MIDI
It is sent to the data conversion unit 105.

The keyboard local on / off switching unit 101 of the CPU 10 is a keyboard local switch 1 of the operation panel 13.
In response to an instruction from 31, the key control unit 100 controls whether or not the key data output from the key depression detection unit 100 is sent to the sound generation channel assignment unit 102. That is, the keyboard local switch 131
When the keyboard local on is instructed by, the keyboard local on / off switching unit 101 operates in the same manner as when the switch is closed, and the key data output from the key depression detecting unit 100 is generated by the sound generation channel assigning unit. Sent to 102. On the other hand, when the keyboard local off is instructed, the keyboard local on / off switching unit 101 operates in the same manner as when the switch is opened, and the key data output from the key depression detecting unit 100 is the sound channel assigning unit. Not sent to 102.

The data reading section 103 of the CPU 10 reads the sequence data from the sequence memory 15 in response to an instruction from the reproduction switch 130. The sequence data read by the data reading unit 103 is sent to the sequencer local ON / OFF switching unit 104.

Sequencer local on / off switching section 10
4 corresponds to the distribution means. The sequencer local on / off switching unit 104 is responsive to an instruction from the sequencer local switch 132 to read the data reading unit 10.
It controls whether the sequence data read in 3 is sent to the tone generation channel assignment unit 102 or the MIDI data conversion unit 105.

That is, the sequencer local switch 132
If the sequencer local ON / OFF switching unit 104 is instructed by the, the sequencer local ON / OFF switching unit 104 operates as in the case where the common terminal A of the switch is connected to the terminal B, as shown in FIG. The sequence data output from the reading unit 103 is the sound channel assigning unit 102.
Sent to. On the other hand, when the sequencer local off is instructed, the sequencer local on / off switching unit 1
04 operates in the same manner as when the common terminal A of the switch is connected to the terminal C, and the sequence data output from the data reading unit 103 is sent to the MIDI data conversion unit 105.

The tone generation channel assigning unit 102 of the CPU 10
Is the key data sent from the key depression detection unit 100 via the keyboard local on / off switching unit 101, or the sequence data sent from the data reading unit 103 via the sequencer local on / off switching unit 104. When the received data is data for instructing pronunciation (hereinafter, referred to as “note-on data”), a sounding channel is assigned, and if it is data for instructing mute (hereinafter referred to as “note-off data”), sound is generated. Perform processing to release the channel.

Here, the tone generation channel corresponds to an oscillator included in a tone signal generator 17 described later (when one tone is generated by one oscillator).
Is. The sounding channel assignment is a process of determining which oscillator in the tone signal generating section 17 is used to sound when a sounding instruction is given, that is, when key data or sequence data is sent. . When a tone generation channel is assigned by the tone generation channel assigning unit 102, information to that effect and key data or sequence data relating to the tone generation instruction are sent to the assigned oscillator of the tone signal generating unit 17.

The MIDI data conversion unit 105 receives the key data sent from the key pressing detection unit 100 or the data reading unit 104 and the sequencer local ON / OFF switching unit 104.
The format data of the sequence data sent via the format data is converted into MIDI format data (hereinafter referred to as "MIDI data"). This MID
The MIDI data converted by the I data conversion unit 105 is M
It is sent to the IDI interface circuit 16.

The tone signal generator 17 corresponds to a part of tone generating means. The tone signal generator 17 has a plurality of oscillators and uses the oscillators assigned by the tone generation channel assigner 102 to generate tone signals based on key data or sequence data. The tone signal generated by the tone signal generator 17 is sent to the amplifier 18.

The amplifier 18 corresponds to a part of the musical tone generating means and amplifies the musical tone signal from the musical tone signal generating section 17. Further, the amplifier 18 is a musical tone inputted from the input terminal IN. It also amplifies the signal and outputs it. The musical tone signal amplified by the amplifier 18 to a predetermined level is supplied to the speaker 19. The speaker 19 corresponds to a part of the musical sound generating means, and is a known one that converts an electric signal into an acoustic signal. Through this speaker 19,
A tone corresponding to the operation of the keyboard device 14 or a tone corresponding to the sequence data stored in the sequence memory 15 is emitted.

The MIDI interface circuit 16 corresponds to the output means, and the MIDI data conversion unit 105.
The MIDI data sent from the device is converted into a signal conforming to the MIDI standard and is output. This MIDI
The signal output from the interface circuit 16 is output to the outside via the output terminal OUT.

The signal output from the output terminal OUT is supplied to the external device 20. As the external device 20, for example, an external sound source module or a sound source of another electronic musical instrument can be used. The musical tone signal generated by the external device 20 is supplied to the amplifier 18 via the input terminal IN of the electronic musical instrument. The external device 2
It goes without saying that the tone signal generated by 0 may be configured to be emitted via the amplifier and the speaker provided in the external device.

Next, the operation of the electronic musical instrument having the above structure will be described in detail with reference to the flow charts of FIGS.

FIG. 2 is a flow chart showing the main routine of this electronic musical instrument, which is started by turning on the power. That is, when the power is turned on, first, initialization processing is performed (step S10). In this initialization process, CP
The internal state of U10 is set to the initial state, and the registers, counters, flags, etc. defined in the RAM (not shown) are set to the initial state.

In this initialization processing, the reproduction flag, the keyboard local flag and the sequencer local flags 1 to 4 used in this embodiment are cleared to "0". The reproduction flag, the keyboard local flag, and the sequencer local flags 1 to 4 are all flags provided in the RAM (not shown).

Here, the reproduction flag is the reproduction switch 130.
This is a flag that is inverted each time is pressed, and is used to store whether or not the sequence performance is being performed. The keyboard local flag is a flag that is inverted each time the keyboard local switch 131 is pressed, and is used to store the local on / off state of the keyboard. Sequencer local flags 1 to 4 are flags that are inverted each time each part switch PART 1 to 4 in the sequencer local switch 132 is pressed, and are used to store the local ON / OFF state of the sequencer for each part. To be done.

Here, the above flags are defined as follows. Play flag "0": No sequence performance "1": Sequence performance Keyboard local flag "0": Keyboard local on state "1": Keyboard local off state Sequencer local flag 1 "0": Part 1 Local ON state of the sequencer corresponding to "1": Local OFF state of the sequencer corresponding to Part 1 Sequencer local flag 2 "0": Local ON state of the sequencer corresponding to Part 2 "1": Sequencer corresponding to Part 2 Local off state of sequencer Local flag 3 "0": Local on state of sequencer corresponding to part 3 "1": Local off state of sequencer corresponding to part 3 Sequencer local flag 4 "0": Sequencer corresponding to part 4 Local on state "1": Corresponding to Part 4 Local off state of the sequencer

Further, in the initialization process, a process of sending predetermined data to the tone signal generator 17 to prevent an unnecessary sound from being generated when the power is turned on is also performed.

Upon completion of this initialization processing, panel processing is then carried out (step S11). The details of this panel processing are shown in the flowcharts of FIGS. 3 and 4.

In the panel processing, first, the presence or absence of a panel event is checked (step S20). This is done as follows. That is, first, the key pressing detection unit 1 of the CPU 10
00 scans the operation panel 13 to display panel data indicating the on / off state of each switch (hereinafter,
It is called "new panel data". ) As a bit string corresponding to each switch.

Next, R which has been read last time and which is not shown is already shown.
The panel data already stored in the AM (hereinafter referred to as “old panel data”) is compared with the new panel data, and a panel event map in which different bits are turned on is created. Whether or not there is a panel event in step S20 is determined by referring to this panel event map and checking whether or not there is a bit that is turned on.

If it is determined that there is no panel event, the panel processing routine returns and returns to the main routine. On the other hand, when it is determined that there is a panel event, that panel event is reproduced by the switch
It is checked whether or not the event is 0 (step S
21). This is done by checking whether the bit corresponding to the play switch 130 in the panel event map is on.

When it is judged that the event is the event of the reproduction switch 130, the reproduction flag is inverted (step S22). Thus, when the reproduction switch 130 is pressed while the sequence performance is stopped, the sequence performance is started, and conversely, the reproduction switch 130 is activated during the sequence performance.
When is pressed, the sequence performance is stopped. If it is determined in step S21 that the event is not the reproduction switch 130 event, step S22 is skipped.

Then, it is checked whether or not there is an event of the keyboard local switch 131 (step S2).
3). This is done by checking whether the bit corresponding to the keyboard local switch 131 in the panel event map is on.

When it is determined that there is an event of the keyboard local switch 131, the keyboard local flag is inverted (step S24). As a result, when the keyboard local switch 131 is pressed while the keyboard is locally on, the keyboard is locally off, and conversely, when the keyboard local switch 131 is pressed while the keyboard is locally off, the keyboard is locally on. It becomes a state. In addition,
If it is determined in step S23 that the event is not the keyboard local switch 131 event, then step S24 is performed.
Is skipped.

Next, a sequencer local switch process is performed (step S25). Details of the sequencer local switch processing are shown in the flowchart of FIG.

In the sequencer local switch processing, it is first checked whether or not there is an event of the part switch PART1 (step S30). This is done by checking whether the bit corresponding to the part switch PART1 in the panel event map is on.

When it is determined that there is an event of the part switch PART1, the sequencer local flag 1 is inverted (step S31). As a result, the sequence performance of Part 1 is set to the local off state when the part switch PART1 is pressed while the sequencer is locally on, and conversely, when the part switch PART1 is pressed when the sequencer is locally off. Turns on. Note that the above step S30
If it is determined that the event is not the event of the part switch PART1, the step S31 is skipped.

Thereafter, in the same manner, the part switch PAR
It is checked whether or not there is an event of T2 (step S32), and if it is determined that there is an event of part switch PART2, the sequencer local flag 2 is inverted (step S33), and part switch PART2.
If it is determined that there is no such event, step S33 is skipped. Next, part switch P
It is checked whether or not there is an ART3 event (step S34), and if it is determined that there is an event of the part switch PART3, the sequencer local flag 3
Is reversed (step S35), and the part switch PAR
If it is determined that there is no T3 event, step S35 is skipped.

Then, it is checked whether or not there is an event of the part switch PART4 (step S36),
When it is determined that there is an event of the part switch PART4, the sequencer local flag 4 is inverted (step S37), and then the sequencer local switch processing routine returns and returns to the panel processing routine. In step S36, the part switch PA
Even if it is determined that there was no RT2 event,
The sequencer local switch processing routine returns and returns to the panel processing routine. Through the above processing, it is set for each part whether to pronounce using an internal sound source or an external sound source.

In the panel processing routine, "other panel processing" is then performed (step S26). In this "other panel processing", various kinds of processing other than those described above, for example, tone color changing processing, volume changing processing, rhythm changing processing, etc., or display processing on the display device are performed, but since they are not directly related to the present invention. The description is omitted. When this "other panel processing" ends, the panel processing routine returns and returns to the main routine.

In the main routine, keyboard processing is then carried out (step S12). For details of this keyboard processing,
This is shown in the flow chart of FIG.

In the keyboard processing, the presence / absence of a keyboard event is first checked (step S40). This is done as follows. That is, first, the key depression detection unit 10 of the CPU 10
By scanning the keyboard device 14 at 0, a signal indicating the on / off state of the key switch is fetched, and from this signal, data indicating the on / off state of each key (hereinafter referred to as “new keyboard data”) is obtained. Create as a bit string corresponding to the key.

Next, R which has been read last time and which is not shown is already shown.
The keyboard data already stored in the AM (hereinafter referred to as "old keyboard data") is compared with the above new keyboard data,
Create a key event map with the different bits turned on. The presence / absence of a keyboard event is determined by checking whether or not there is a bit that is turned on in this key event map. Note that the key data described above is also created when creating this key event map.

If it is determined here that there is no keyboard event, this keyboard processing routine returns and returns to the main routine. On the other hand, if it is determined that there is a keyboard event, it is checked whether the keyboard local flag is "1" (step S41). When it is determined that the keyboard local flag is not "1", that is, the keyboard is in the local-on state, sounding / silence processing is performed (step S42).

In the tone generation / mute processing, the tone generation channel assigning unit 102 receives the key data sent from the key depression detecting unit 100 via the keyboard local on / off switching unit 101, and this key data indicates that the key depression has occurred. If it is indicated that the sounding channel is present, the sounding channel is assigned, and the key data together with the data indicating the assigned sounding channel is sent to the tone signal generator 17. As a result, in the tone signal generator 17, a tone signal is generated using the assigned tone generation channel, and the tone is generated via the amplifier 18 and the speaker 19.

On the other hand, when the key data indicates that the key has been released, the tone generation channel corresponding to the key number is searched. And the pronunciation channel assigning unit 1
02 sends predetermined data to the searched pronunciation channel. As a result, the generation of the tone signal in the tone generation channel is stopped, and the tone generated by the amplifier 18 and the speaker 19 is stopped.

Next, MIDI transmission processing is performed (step S43). That is, the MIDI data conversion unit 105
Is the key data sent from the key depression detection unit 100.
Converted to IDI data, MIDI interface circuit 1
Send to 6. The MIDI interface circuit 16 converts the received MIDI data into a signal conforming to the MIDI standard, and outputs it to the outside through an output terminal OUT.

At this time, as shown in FIG. 1, the output terminal OU
If an external tone generator module is connected to T as an external device 20 and the tone signal output from the external tone generator module is connected to the input terminal IN of the electronic musical instrument, the musical tone corresponding to the keyboard operation is generated. The signal is generated by the external sound source module, is amplified by the amplifier 18 of the electronic musical instrument, and is sounded through the speaker 19.

When it is determined in step S41 that the keyboard local flag is "1", that is, the keyboard is in the local off state, the tone generation / mute process (step S4).
2) is skipped, and only MIDI transmission processing is performed. As a result, the local off function of the keyboard is realized. When the MIDI transmission processing ends, the keyboard processing routine returns and returns to the main routine.

In the main routine, a sequence performance process is then performed (step S13). The outline of this sequence performance process is shown in the flowchart of FIG. In the sequence performance process, it is first checked whether or not the reproduction flag is "1" (step S50).
When it is determined that the reproduction flag is "0", that is, the sequence performance is not designated, the sequence performance processing routine is returned to the main routine.

On the other hand, if the reproduction flag is "1", that is, if the sequence performance is designated, then it is checked whether or not the sequencer local flag 1 is "1" (step S51). And sequencer local flag 1
Is not "1", that is, if it is determined that the sequencer is in the local ON state, the sound production / mute processing of part 1 is performed (step S52). On the other hand, when it is determined that the sequencer local flag 1 is "1", that is, the sequencer is locally off, a MIDI transmission process of converting the sequence data of Part 1 into MIDI data and transmitting the MIDI data to the outside is performed ( Step S53). As a result, the local on / off function of the sequencer for the sequence performance of Part 1 is realized.

Thereafter, it is similarly checked whether or not the sequencer local flag 2 is "1" (step S5).
4) If it is determined that the sequencer local flag 2 is not "1", the sound generation / mute process of part 2 is performed (step S55), and the sequencer local flag 2 is "1".
If it is determined that the MIDI transmission process is Part 2, the MIDI transmission process of Part 2 is performed (step S56). Next, it is checked whether or not the sequencer local flag 3 is "1" (step S57), and the sequencer local flag 3 is "1".
If it is determined that the sequencer local flag 3 is "1", the sound / mute process of part 3 is performed (step S52).
I transmission processing is performed (step S59).

Then, it is checked whether the sequencer local flag 4 is "1" (step S60),
When it is determined that the sequencer local flag 4 is not "1", the sound production / silence processing of part 4 is performed (step S61), and then the sequence performance processing routine is returned to the main routine. On the other hand, when it is determined that the sequencer local flag 4 is "1", the MIDI transmitting process of part 4 is performed (step S5).
9) Then, the sequence performance processing routine returns and returns to the main routine. As described above, the function of controlling the local ON / OFF of the sequencer for each part is realized.

In the main routine, "other processing" is performed (step S14). In this "other processing", various processing other than the above, for example, MIDI data receiving processing and the like are performed.

In this way, step S of the main routine
When an event corresponding to a panel operation or a keyboard operation occurs in the process of repeatedly executing 11 to S14, various functions of the electronic musical instrument are realized by performing processing corresponding to the event.

As described above, according to this embodiment, it is determined whether the sequence data of each part read from the sequence memory 15 is sent to the musical tone signal generating section 17 or the MIDI interface circuit 16. 13 sequencer local switches 132 can be controlled according to the instruction.

Thus, when it is desired to generate a musical sound of a specific part with an external sound source, the sequencer local switch 132 is designated to send the sequence data of the specific part to the MIDI interface circuit 16.
The musical sound of the specific part is not sounded by the internal sound source of the electronic musical instrument, that is, the musical sound signal generating section 17, but is sounded only by the external sound source. Therefore, unlike the conventional case, it is not sounded by both the internal sound source and the external sound source, so that the music intended by the performer can be obtained.

In the above embodiment, the operation panel 13
A keyboard local switch 131 and a sequencer local switch 132 are provided on the upper side, and the keyboard local flag and the sequencer local flags 1 to 4 are set or reset in accordance with the operation of these switches, thereby turning the keyboard on / off and the sequencer local on. Although it is configured to set ON / OFF, the keyboard local flag and the sequencer local flags 1 to 4 may be directly set or reset in the system setting mode.

Here, the system setting mode is a well-known operation mode generally provided in the electronic musical instrument, and is used by the operator to set various parameters in the electronic musical instrument. According to this configuration, the number of switches to be provided on the operation panel 13 can be reduced, and the panel processing can be simplified.

In the above embodiment, the functions of the keyboard local ON / OFF switching unit 101 and the sequencer local ON / OFF switching unit 104 are realized by the processing of the CPU 10. However, these switching functions are realized by hardware. You can also do it.

In the above embodiment, the data transmitted to the external device 20 is described as MIDI data.
The data is not limited to DI data, and data of any format can be used.

Further, in the above embodiment, the sequencer local on / off control is performed by using the sequencer local switch provided on the operation panel 13. However, the sequencer local for each part is included in the sequence data. Define a function to control ON / OFF,
It is also possible to use this function to control the local on / off of the sequencer for each part.

[0075]

As described in detail above, according to the present invention,
It is possible to provide an electronic musical instrument in which an external sound source and an internal sound source can be separated for each part and played in sequence.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of an electronic musical instrument of the present invention.

FIG. 2 is a flowchart (main routine) showing the operation of the embodiment of the present invention.

FIG. 3 is a flowchart (panel processing routine) showing the operation of the embodiment of the present invention.

FIG. 4 is a flowchart (sequencer local switch processing routine) showing the operation of the embodiment of the present invention.

FIG. 5 is a flowchart (keyboard processing routine) showing the operation of the embodiment of the present invention.

FIG. 6 is a flowchart (sequence performance processing routine) showing the operation of the embodiment of the present invention.

[Explanation of symbols]

 10 CPU 100 Key Press Detection Unit 101 Keyboard Local On / Off Switching Unit 102 Sound Channel Assigning Unit 103 Data Reading Unit 104 Sequencer Local On / Off Switching Unit 105 MIDI Data Converter 13 Operation Panel 130 Playback Switch 131 Keyboard Local Switch 132 Sequencer Local Switch 14 Keyboard device 15 Sequence memory 16 MIDI interface circuit 17 Musical sound signal generator 18 Amplifier 19 Speaker 20 External device

Claims (2)

[Claims] 1. A storage means for storing sequence data of a plurality of parts, a designation means for designating an output destination of the sequence data stored in the storage means for each part, and the storage according to the designation of the designation means. Distribution means for allocating the sequence data read from the means to the first output destination or the second output destination for each part, and a musical sound based on the sequence data distributed by the distribution means to the first output destination. An electronic musical instrument comprising: a musical tone generating means for generating the generated musical tone; and an output means for outputting the sequence data distributed to the second output destination by the distributing means to the outside. 2. The electronic musical instrument according to claim 1, wherein the output means converts the sequence data into MIDI data and outputs the MIDI data.