JP2819966B2 - Automatic performance device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic performance apparatus for automatically performing a performance based on a plurality of tone pattern data stored in advance and a performance order of the tone pattern data.

[0002]

2. Description of the Related Art Generally, in an automatic performance apparatus, note event data including pitch (pitch) data and tone data including timing data indicating the generation timing of the note event data are stored in advance in the order of performance. Automatic performance is performed by sequentially reading out the tone data and controlling sound emission of the tone generator module.

[0003] In such an automatic performance device, especially in the case of a tune where a large number of repetitions appear in one tune, such as in the case of a rhythm performance, it is necessary to store all the musical tone data of one tune from the beginning to the end. Instead, a plurality of tone pattern data having a length of one measure to several measures is stored, and the playing order of these tone pattern data is programmed. In this tone pattern system, for example, the pattern No. of the tone pattern can be used without programming the tone data itself for one song. There is an advantage that the programming of music can be facilitated and the memory capacity can be reduced.

[0004]

However, in the above-mentioned tone pattern system, since the playing order is programmed in units of tone patterns stored in advance, the frequency of use of the same tone pattern becomes high, and the monotone becomes monotonous. They tended to be songs.

On the other hand, when the number of musical tone patterns is increased to eliminate monotonous music, there is a problem that the labor for creating musical tone pattern data increases and the memory capacity also increases.

The present invention has been made under such circumstances, and an object of the present invention is to make it possible to automatically play various music pieces while suppressing an increase in labor for creating tone pattern data and an increase in memory capacity. That is.

[0007]

In order to achieve the above object, an automatic performance apparatus according to a first aspect of the present invention stores a plurality of tone pattern data, and each of the tone pattern data is accompanied by a respective tone pattern. First storage means for storing identification information indicating that the data is pattern data;
Destination pattern instruction data for specifying the destination tone pattern data to form tone pattern data formed by concatenating predetermined portions of the respective tone pattern data stored in the storage means, and the designated tone pattern A plurality of switching pattern data including switching timing data indicating a timing within a bar to be switched to data is stored, and identification information indicating that each is switching pattern data is stored with each of the switching pattern data. A second storage unit, a read instruction unit that instructs to read any of the pattern data stored in the first or second storage unit, and identification information corresponding to the read-instructed pattern data, The first
Or identification information reading means for reading from the second storage means;
Discriminating means for discriminating from the read identification information whether the pattern data is the tone pattern data or the switching pattern data; and, as a result of the discrimination by the discriminating means, the pattern data is the tone pattern data. , The tone pattern data is stored in the first
A first reading means for reading from the storage means, and a second reading for reading the switching pattern data from the second storage means when the pattern data is switching pattern data as a result of the determination by the determining means. Means, when the switching pattern is read from the second storage means, the musical tone pattern data read by the first reading means at the timing within the bar indicated by the switching timing data. Switching to the switching destination tone pattern data specified by the switching destination pattern instruction data,
Reading control means for controlling reading from the storage means.

In order to achieve the above object, an automatic performance apparatus according to a second aspect of the present invention comprises a timing management means for managing timing within a measure of performance, and a tone pattern data of one or more measures formed by collecting a plurality of tone data. Storage means for storing a plurality of pieces of music pattern data, and a plurality of pieces of music stored in the first storage means for performing a performance based on the first tone pattern data among the plurality of tone pattern data pieces stored in the first storage means. A switch instruction data for instructing to switch to a performance based on the second musical tone pattern data among the musical tone pattern data of the first and second musical tone pattern data. A plurality of tone pattern data stored in correspondence with a timing to be switched and a plurality of tone pattern data stored in the first storage means; And third storage means for storing read order data defining a read order among the switching pattern data stored in the second storage means in correspondence with the music piece, and reading out data corresponding to the music piece. Reading designation data for reading the order data from the third storage means, and sequentially designating the reading of the corresponding tone pattern data and the switching pattern data based on the read reading order data; and First reading means for reading tone pattern data from the first storage means, second reading means for reading switching instruction data in the read-designated switching pattern data from the second storage means, In response to a switching instruction based on the switching instruction data read by the second reading means, the first musical tone pattern data is converted to the second musical tone pattern data. Control means for controlling the first reading means so as to switch to pattern data, wherein the control means controls the first reading means based on the intra-measure timing managed by the timing management means, after the in-measure timing at which the switching instruction is issued. And control means for reading out the second tone pattern data from the tone data to be played, and performance means for performing based on the tone data in the tone pattern data read by the first reading means. And

[0009]

In the first invention, the first storage means stores a plurality of tone pattern data and, along with each tone pattern data, identification information indicating that each piece is tone pattern data. doing.

The second storage means instructs the tone pattern data to be switched to in order to form tone pattern data formed by connecting predetermined portions of the respective tone pattern data stored in the first storage means. A plurality of switching instruction data including switching destination pattern instruction data and switching timing data for instructing a timing within a measure to be switched to the designated musical tone pattern data;
Along with each switching pattern data, identification information indicating that each is switching pattern data is stored. In other words, the second storage means is for forming new tone pattern data not stored in the first storage means, but arbitrarily divides a plurality of tone pattern data in the first storage means. By storing switching instruction data that functions as connection information between tone pattern data in the divided sections without storing the tone pattern data itself in the divided section, the labor for creating tone pattern data and the memory capacity are reduced. I have.

Then, identification information corresponding to the pattern data instructed to be read by the read instructing means is read from the first or second storage means. When it is determined that the data is the switching pattern data, the switching pattern data is read from the second storage means, and the reading control means reads the bar indicated by the switching timing data in the read switching pattern data. At this timing, the tone pattern data read by the first reading means is switched to the switching destination tone pattern data specified by the switching destination pattern instruction data and read from the first storage means. To control.

Accordingly, it is possible to automatically perform various music pieces while suppressing an increase in labor for creating tone pattern data and an increase in memory capacity.

In the second invention, the timing management means starts counting a clock signal generated at a time interval corresponding to a thirty-second note as a minimum unit of resolution, for example, each time it enters each bar, and The timing within the bar is managed by resetting the count value when the counting of the clock signal for the bar ends.

The first storage means stores a plurality of tone pattern data of one or more measures formed by collecting a plurality of tone data, and from among these, the tone pattern data designated by the read-out designation means is stored in the first storage means. 1 is read out by the reading means, and the musical tone data therein is played by the playing means.

The second storage means stores a performance based on the first tone pattern data among the plurality of tone pattern data stored in the first storage means, and stores a plurality of tones stored in the first storage means. the switching instruction data for instructing to switch to the performance based on the second musical tone pattern data in the pattern data is stored as switching pattern data, the switching
The instruction data is used to change the performance within a measure.
It is stored corresponding to the imming . This switching instruction data is read by the second reading means.

The third storage means stores tone pattern data stored in the first storage means and performance order data representing the performance order of the formed switching pattern data, corresponding to the performance music. I have.

The control means switches from the first tone pattern data to the second tone pattern data in response to a switching instruction based on the switching instruction data read by the second reading means. The first reading means is controlled, and at this time, based on the intra-measure timing managed by the timing management means, a second musical tone pattern is generated from musical tone data existing after the intra-measure timing at which the switching instruction is issued. Control to read data. That is, when a switching instruction is given during the performance of the first musical tone pattern data, the control means reads out the second musical tone pattern data after the timing within the measure at which the switching instruction was issued, and reads out the second musical tone pattern played before that. The second set of tone pattern data corresponding to one tone pattern data is not read out.

[0018]

[0019]

As described above, in the automatic performance apparatus according to the second aspect of the invention, the switching pattern data is handled and controlled in the same manner as the musical tone pattern data, so that the performance control is not complicated, and the performance control is simplified. It is trying to make it.

Further, the second storage means stores new tone pattern data by storing switching instruction data between each tone pattern data in the first storage means without storing the tone pattern data itself. Since it is formed, similarly to the automatic performance device according to the first aspect of the invention, it is possible to automatically play various music pieces while suppressing an increase in labor for creating tone pattern data and an increase in memory capacity.

[0022]

Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic block diagram of an electronic musical instrument to which an automatic performance device according to one embodiment of the present invention is applied. This electronic musical instrument performs manual performance control or automatic performance control with the CPU 1 as a core.
Performs performance control in response to a key depression operation of the keyboard KB during manual performance, and performs automatic performance control based on performance data preset in the ROM 6 during automatic performance.

A keyboard circuit 2, a switch detection circuit 3, a display circuit 4, a sound source circuit 5, a ROM 6, a RAM 7, and a timer 8 are connected to the CPU 1 via a bus line BUS. A keyboard KB is connected to the keyboard circuit 2,
The switch detection circuit 3 includes a music selection switch for selecting a music piece (song) for automatic performance, a manual performance mode,
Various switches SW such as a mode setting switch for setting various modes such as an automatic performance mode are connected, and the sound source circuit 5 is connected to a sound system SS.

The keyboard circuit 2 detects the pressed state of the keyboard KB, and a key-on signal indicating that the key is pressed until the pressed key is released, and a key indicating which key is pressed. A code signal and a signal indicating a key pressing speed are generated and supplied to the CPU 1 via the bus line BUS. The signal indicating the key pressing speed (velocity) is processed as a signal indicating the key pressing strength.

The switch detection circuit 3 detects the on / off state of each switch SW and outputs the detection signal to the bus line B.
It supplies to CPU1 via US.

The display circuit 4 displays the performance-related information such as the mode and music name corresponding to the operated switch SW by the CPU 1.
Display according to the control of.

The tone generator 5 generates various tone signals (digital signals) based on instructions from the CPU 1 and outputs them to the sound system SS.

The sound system SS includes a D / A converter,
A digital tone signal provided from the tone generator circuit 5 is converted into an analog signal by a D / A converter, and the tone signal converted into the analog signal is amplified by the amplifier circuit and output by the speaker. .

The ROM 6 is preset with rhythm data as performance data for performing an automatic performance, in addition to various programs for controlling the performance. In this embodiment, the rhythm data is divided into three layers of song data, tone pattern data, and switching pattern data as shown in FIGS. 2 to 4, and these song data, tone pattern data, and switching pattern data are Each one is preset.

Each song data is composed of rhythm performance information for one song, and as shown in FIG.
Song No. for identifying each song data from each other And a pattern No. for identifying patterns among a plurality of tone pattern data (including switching pattern data). It is composed of The pattern No. Are arranged in the order of performance.

Each tone pattern data and each switching pattern data are composed of rhythm performance information for one to several measures (for example, two measures), and each pattern data has a predetermined pattern No. Is assigned.

As shown in FIG. 3, each tone pattern data has a pattern No. , Identification flag, MAXMEAS,
It is composed of header information including information such as MAXCLK, processing timing of a note event (this timing is referred to as event timing), and a note event. The identification flag is a flag that indicates whether the data is tone pattern data or switching pattern data. If “0”, the identification flag indicates tone pattern data.
"1" indicates the switching pattern data. MA
XMEAS indicates the number of measures in the pattern, and MAXCLK indicates the number of clocks for one measure. The event timing indicates a timing measured from the beginning of a bar, and is represented by the number of clocks from the beginning of the bar, and indicates the processing timing of a note event immediately after that. Note events include hi-hat cymbals, snare drums,
Note No. indicating the type of percussion instrument sound such as bass drum
And a velocity indicating the strength of the percussion instrument sound. The number of measures indicated by MAXMEAS takes a value of "0" when the musical tone pattern data is pattern data of one measure, and "1" when the musical tone pattern data is pattern data of two measures. The number of clocks for one measure indicated by MAXCLK is represented by the number of clocks based on a minimum unit of resolution described later.

Each switching pattern data is used to increase the variation of the tone pattern by connecting the divided patterns obtained by arbitrarily dividing each tone pattern data. As shown in FIG. Timing and switching destination pattern No. It is composed of
The header information has the same pattern No. as in the case of the musical tone pattern data. , Identification flag, MAXMEAS, MAXCL
In addition to the information of K, the pattern No. of the tone pattern data selected as the first to be played from the plurality of tone pattern data. (This is referred to as an initial performance pattern No.). Note that the number of measures and the number of clocks in each switching pattern data match the number of measures and the number of clocks in the musical tone pattern data. The switching timing is the switching destination pattern No. shown next to the switching timing. The timing for switching to the musical tone pattern data corresponding to. Note that the switching timing also indicates the timing (the number of clocks) measured from the beginning of each bar, similarly to the event timing.

For example, as shown in FIG. 5A, the initial performance pattern No. in the header information. As the tone pattern No. “A” is preset, and the switching timing t1,
After the switching patterns No. t2, t3 and t4, respectively.
As the tone pattern No. "B", "A", "C",
When "B" is preset, as shown by the solid line in FIG. "A",
The performance is switched in the order of "B", "A", "C", and "B". In this case, for example, the tone pattern No. "C"
Indicates that each musical tone pattern No. is set such that a note event in a section between timings t3 and t4 is performed. , A note event in a section corresponding to the switching timing indicated in the switching pattern data is played.

As described above, the switching pattern data is not a preset of the actual event data of the tone pattern data, but the pattern No. of the tone pattern data to be switched. Is preset, the amount of data to be preset is reduced, the presetting operation becomes easier, and an increase in memory capacity can be suppressed.

The RAM 7 is used as a work area when performing performance control.

The timer 8 has a function of instructing the CPU 1 on a processing timing according to the given tempo information. For example, in the case of a tempo in which quarter notes are played at 60/96 seconds, that is, a tempo in which quarter notes are played 96 times per minute, the minimum unit of the tempo resolution is 32.
If the note is a minute note, the processing timing is instructed at an interval of {(60/96) × (4/32)} seconds corresponding to the length of the 32nd note.

Next, the automatic performance control operation will be described with reference to the flowcharts of FIGS. Then, the flowchart will be outlined in the order of steps, and will be described in detail with a specific example.

When the automatic performance mode is set by the mode setting switch and the song data is selected by the music selection switch, the CPU 1 first reads the header information of the selected song data, and sets the tempo in the header information to the timer 8. (Step S1 in FIG. 6). Then, the timer 8 thereafter sets the CP at a time interval corresponding to the tempo.
An interrupt is issued to U1 to instruct the processing timing (see step S80 in FIG. 9).

Next, the CPU 1 determines the first pattern No. in the selected song data. Is set (step S2 in FIG. 6). Then, the set pattern No. The header information of the tone pattern data or the switching pattern data corresponding to the above is read out (step S3). Subsequently, MAXMEAS (number of measures), MAX in the read header information
CLK (the number of clocks) in the register MAXME
AS, set in the register MAXCLK (step S
4) It is determined whether the identification flag is “1” and indicates the switching pattern data (step S5).

As a result, when the switching pattern data is indicated, the initial performance pattern No. in the read header information is determined. Is set (step S6), the first switching timing in the switching pattern data is set in the register TIME1 (step S7), and the process proceeds to step S8. On the other hand, when the identification flag is “0” and indicates the tone pattern data, the process skips steps S6 and S7 and proceeds to step S8.

In step S8, the first event timing is set in the register TIME2. Then, the process waits for the interruption of the processing timing signal from the timer 8 (step S9). When the interruption of the processing timing signal is received, it is determined whether or not the performance control based on the switching pattern data is currently being executed. Judge (Step S1
0).

As a result, if the performance control based on the switching pattern data is being executed, it is further determined whether or not the number of clocks in the counter CLK has reached the switching timing (number of clocks) in the register TIME1 ( Step S
11). As a result, when it reaches the next switching destination pattern No. Is set (step S12), and the counter MEA is set.
The data of the tone pattern data after the current performance position indicated by S and the counter CLK is searched, and the first event timing in the search range is set in the register TIME2 (step S13). Then, it is determined whether or not the next data in the switching pattern data currently being played is end data (step S14). If not, the next switching timing is set in the register TIME1. (Step S15), the process proceeds to step S16.

If it is determined in step S10 that the performance control is being performed based on the tone pattern data instead of the switching pattern data, then in step S11, the number of clocks in the counter CLK is stored in the register TIME.
When it is determined that the switching timing (number of clocks) within 1 has not been reached, and when it is determined in step S14 that the next data of the switching pattern data currently being played is end data, In any case, the process proceeds to step S16.

In step S16, it is determined whether or not the number of clocks in the counter CLK has reached the event timing (number of clocks) in the register TIME2. As a result, if it has not reached, the process proceeds to step S20, and if it has reached, the event data corresponding to the current event timing in the register TIME2 is output to the tone generator 5 (step S17). Then, it is determined whether or not the next data in the tone pattern data currently being played is end data (step S18). If it is end data, the process immediately proceeds to step S20. Register the next event timing in register TI
Set to ME2 (step S19), step S2
Go to 0.

In step S20, it is determined whether or not the number of clocks in the counter CLK has reached the number of clocks in the register MAXCLK. As a result, if not reached, the number of clocks in the counter CLK is incremented by 1 (step S21), and the process returns to step S9 to wait for the next processing timing instruction to be output from the timer 8. As can be inferred from this description, the counter CLK
The number of clocks in is updated each time the processing timing is instructed.

On the other hand, when the number of clocks in the counter CLK reaches the number of clocks in the register MAXCLK, the number of measures in the counter MEAS is further increased by the value of the register MAXME.
It is determined whether or not the number of measures in the AS has been reached (step S
22). As a result, if not reached, the counter MA
The number of measures in the XMEAS is incremented by one, the number of clocks in the counter CLK is reset to "0" (step S23), and the process returns to step S9.

The number of measures in the counter MEAS is equal to the value of the register M
If the number of measures in the AXMEAS has been reached, it is determined whether or not the next data in the song data is end data (step S24). End the performance.
If it is not the end data, the next pattern No. in the song data Is set (step S25), and the counter ME is set.
The number of measures in the SA and the number of clocks in the counter CLK are reset to “0” (step S26), and the process returns to step S3.

Next, the above operation will be described with a specific example.

Assume that the song data shown in FIG. 10A has been selected. In this song data, FIG.
The pattern Nos. Shown in (b) and (c) respectively. "A",
The tone pattern data of "B" and the pattern No. shown in FIG. The switching pattern data of "N" is used. When the contents of each pattern of FIGS. 10B, 10C, and 10D are shown in the form of a musical score, FIGS.
(B) and (c) are obtained. Note that since this example is an example of a rhythm pattern, note lengths are also shown in the musical score of FIG. 11 so as to be intuitively grasped, but note length data is not actually included in the note event. FIG.
The pattern Nos. Shown in (b), (c) and (d) respectively.
The tone pattern data of "A", "B", and "N" is 2 /
In this embodiment, the minimum unit of resolution is a 32nd note, and one bar contains 16 32nd notes, so that MAXCLK is 16-1 = 15 (counter CLK
Is "0", and thus the value is minus one).

In the case of the song data shown in FIG. 10A, since the tempo is the speed at which a quarter note is played 96 times per minute and the minimum unit of resolution is a 32nd note, the above flow chart is used. When the tempo is set in step S1, the timer 8 instructs the processing timing at an interval of {(60/96) × (4/32)} seconds corresponding to the length of the 32nd note. In the case of the song data shown in FIG. Is "A", so in step S2, the pattern No. Set “A”. Then, in step S3, the pattern No. The header information of "A" is read, and in step S4, the register MAXME
AS is set to “1” and the register MAXCLK is set to “15”. The pattern No. which is not the switching pattern at present. Since "A" is set, the process proceeds to step S8 via step S5, and the pattern No. is stored in the register TIME2. "A" first event timing "0"
Is set. At this stage, the counters MEAS,
CLK is both reset to "0".

In such a situation, steps S9, S9
The process proceeds to step S16 via. At present, the number of clocks in the counter CLK and the register TIME
The event timings (number of clocks) in 2 are both "0"
Therefore, the process proceeds to step S17, and the pattern No.
A note event corresponding to the first quarter note of “A” is output to the tone generator 5. Then, the process proceeds to step S19 via step S18, and the pattern No. is stored in the register TIME2. Event timing next to "A" (number of clocks)
“8” is set. Then, after step S20, the process proceeds to step S21, where the number of clocks in the counter CLK is incremented by 1, and the process returns to step S9.

The number of clocks in the counter CLK is stored in the register T by the increment processing in step S21.
Event timing (number of clocks) in IME2 "8"
Steps S9, S10, S16,
The loop of S20, S21 and S9 is circulated.

When the number of clocks in the counter CLK has reached "8", the process proceeds to step S17 via step S16, and the pattern No. The note timing corresponding to the event timing (clock number) “8” of “A”, that is, the second quarter note is output. Then, step S1
At 9, the event timing "0" of the next half note is set in the register TIME2. Thereafter, the number of clocks in the counter CLK is incremented by the processing in step S21, and steps S20 and S2 are performed until the number of clocks in the register MAXCLK reaches “15”.
The loop of 1, S9, S10, S16, and S20 is circulated.

When the number of clocks in the counter CLK reaches the number of clocks “15” in the register MAXCLK,
Proceeding to step S22 via step S20, it is determined whether or not the number of measures in the counter MEAS has reached the number of measures in the register MAXMEAS. At this time, however, the count has not yet reached.
The number of measures in the box is incremented by 1 to “1” and the counter C
The number of clocks in LK is reset to “0”.

Then, when the process proceeds to step S16 via steps S9 and S10, it is determined that the clock number of the counter CLK and the event timing (clock number) in the register TIME2 are both "0" and coincide with each other.
Proceeding to step S17, the pattern No. A note event corresponding to the half note of “A” is output. Since the next data is end data, thereafter, the counter CLK is incremented by the increment processing in step S21.
Steps S20 and S2 until the number of clocks in the register reaches the number of clocks “15” in the register MAXCLK.
The loop of 1, S9, S10, S16, and S20 is circulated.

If the number of clocks in the counter CLK has reached the number of clocks "15" in the register MAXCLK, the flow advances to step S22 to determine whether the number of measures in the counter MEAS has reached the number of measures in the register MAXMEAS. Judge. At this time, since the number of measures in the counter MEAS is "1" and the number of measures in the register MAXMEAS has reached "1", the flow advances to step S24 to determine whether the next data in the song data is end. Is done. At this point, the pattern No. The performance of “A” has just finished, and the next pattern No. Since “N” has not been played yet, the next pattern No. "N" is set, the counters MEAS, CLK are reset to "0" in step S26, and the process returns to step S3.

Then, in step S3, the pattern N
o. The header information of "N" is read, and in step S4,
MAXMEAS (number of measures), MAXCL in header information
K (the number of clocks) is set in each of the registers MAXMEAS and MA
Set to XCLK. Next, the process proceeds to step S5, where it is determined whether or not a switching pattern is set. In this case, the pattern No. Since "N" is a switching pattern, the process proceeds to step S6, where the pattern No. The initial performance pattern No. in the header information of the switching pattern of "N". Set “A”. Next, in step S7, the pattern No. "N"
Is set in the register TIME1. And step S
8, the pattern No. Initial performance pattern No. in the switching pattern of “N” The first event timing “0” of “A” is set in the register TIME2.

In this case, since the pattern to be played is the switching pattern, the process proceeds to step S11 via steps S9 and S10. At present, the counter CL
The number of clocks in K is “0” and the register TI
Since the switching timing (the number of clocks) in ME1 has not reached “7”, the process proceeds to step S16 via step S11. At present, the counter CLK, the register TIME
2 are both “0” and coincide with each other, so the process proceeds to step S17, where the pattern No. Initial performance pattern No. in the switching pattern of “N” The first event data of "A" is output.

Then, after step S18, step S18
19, and the initial performance pattern No. The event timing “8” next to “A” is set in the register TIME2. After that, the clock number in the counter CLK is set in the register TIM by the increment processing in step S21.
Until the switching timing (number of clocks) in E1 reaches “7”, steps S20, S21, S9, S10,
The loop of S11, S16, and S20 is circulated.

When the number of clocks in the counter CLK has reached "7", the process proceeds to step S12 via step S11, and the switching destination pattern No. corresponding to the switching timing "7". “B” is set. Then, the process proceeds to step S13, where the switching destination pattern No. For "B", the data after the current performance position indicated by the counters MEAS and CLK is searched, and the first event timing "12" in the range is set in the register TIME2. That is, the initial performance pattern No. The event timing “7” corresponding to the second quarter note of “A” is the initial performance pattern No. Before the event data corresponding to the second quarter note of “A” is played, the switching destination pattern No. The event timing is changed to the event timing corresponding to the second note (eighth note) of “B”.

Then, the process proceeds to step S16 via steps S14 and S15. Thereafter, step S16 is performed until the number of clocks in the counter CLK reaches the event timing (number of clocks) “12” in the register TIME2.
The loop of 20, S21, S19, S10, S11, and S16 is circulated.

The number of clocks in the counter CLK is equal to the event timing (number of clocks) “1” in the register TIME2.
2 ", the process proceeds to the step S17 via the step S16, and the switching destination pattern No. Event data corresponding to the second note (eighth note) of “B” is output. In FIG. 11 (c), the number of clocks in one bar is 1.5 / 4 due to the relationship shown in the musical score format. Since event data (rhythm data) corresponding to the eighth note is output based on the number of clocks (processing timing) to be generated, an eighth rest is actually present as shown in parentheses (). Is the same as doing
2/4 time signature is maintained.

As described above, when performing the automatic performance control in accordance with the switching pattern data, the CPU 1 reads out the event data in the musical tone pattern data based on the switching timing in the switching pattern data and outputs it to the tone generator circuit 5. ing. That is, the event data itself is not included in the switching pattern data, but the event data is indirectly included by the above-described read control.

Further, in the above-mentioned performance control, the switching pattern data is regarded as a kind of musical tone pattern data and handled in the same manner as the musical tone pattern data. Performs the performance of the tone pattern data indicated by the switching pattern data and the performance of the normal tone pattern data.

[Application Modifications] The present invention is not limited to the above-described embodiment, but can be variously modified as follows, for example.

1. The present invention can also be applied to an automatic performance device that performs an automatic accompaniment or an automatic melody performance other than the automatic rhythm performance.

2. The switching pattern data may be created by the user and stored in the RAM.

3. The tone pattern data switched by the switching pattern data only needs to have at least two patterns. If only two patterns exist, only the pattern identification data of the initial performance is recorded, and only the switching instruction data is recorded thereafter. Need not be recorded in correspondence with the switching instruction data.

4. The format of the musical tone pattern data and the switching pattern data is the note event or the switching destination pattern No. + Not the timing from the beginning of the bar, but the note event or the switching destination pattern No. + The timing from the beginning of the music, the note event and the switching destination pattern No. + The generation interval of these data may be used. Further, a method may be used in which the tone generation timing and the address of the memory storing the musical tone data generated at the tone generation timing have a one-to-one correspondence.

5. The switching pattern data may be created by a real-time recording method of instructing the pattern switching while actually reproducing the musical tone pattern data and recording the instruction timing, or may be recorded by designating the timing by a numerical value or the like. It may be created by a step recording method.

[0073]

As described above, according to the automatic performance apparatus of the present invention, the switching state between predetermined basic tone pattern data is stored and used as new tone pattern data. Thus, it is possible to automatically play various music pieces while suppressing an increase in effort for creating tone pattern data and an increase in memory capacity.

Further, by treating the switching pattern data as a kind of musical tone pattern data and treating it in the same manner as musical tone pattern data, it is possible to avoid complicating the performance control.
The performance control can be simplified.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an outline of an electronic musical instrument to which an automatic performance device according to an embodiment of the present invention is applied.

FIG. 2 is a diagram showing a format of song data.

FIG. 3 is a diagram showing a format of musical tone pattern data.

FIG. 4 is a diagram showing a format of switching pattern data.

FIG. 5 is a conceptual diagram showing a switching state between musical tone pattern data in the switching pattern data.

FIG. 6 is a flowchart showing automatic performance control.

FIG. 7 is a flowchart continued from FIG. 6;

FIG. 8 is a flowchart continued from FIG. 7;

FIG. 9 is a flowchart illustrating a timer interrupt process.

FIG. 10 is a diagram showing an example of performance data for specifically explaining automatic performance control according to the flowcharts of FIGS. 6 to 9;

FIG. 11 is a diagram showing an example of performance data of FIGS. 10 (b), (c), and (d) in a musical score format.

[Explanation of symbols]

 1 CPU 5 sound source circuit 6 ROM 7 RAM 8 timer SS sound system

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Keizo Terui 10-1 Nakazawa-cho, Hamamatsu City, Shizuoka Prefecture Inside Yamaha Corporation (56) References JP-A-4-125695 (JP, A) 98096 (JP, U) Japanese Utility Model 63-105200 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) G10H 1/00 102 G10H 1/36-1/40

Claims (2)

(57) [Claims] 1. A first storage means for storing a plurality of tone pattern data and storing identification information associated with each tone pattern data, the identification information indicating that each piece is tone pattern data. Of each tone pattern data stored in the storage means of
Switching destination pattern designating data for designating switching destination musical tone pattern data and switching for designating timing within a bar to be switched to the designated musical tone pattern data, so as to form musical tone pattern data formed by connecting predetermined portions. A second storage unit that stores a plurality of switching pattern data including timing data and stores identification information indicating that the switching pattern data is associated with each of the switching pattern data; Read instruction means for instructing to read any of the pattern data stored in the second storage means, and reading the identification information corresponding to the read-instructed pattern data from the first or second storage means. Identification information reading means, and from the read identification information, the pattern data is Discriminating means for discriminating whether the pattern data is the tone pattern data or the switching pattern data, and, as a result of the discrimination by the discriminating means, when the pattern data is musical tone pattern data, the musical tone pattern data is stored in the first storage means. First reading means for reading, and as a result of the discrimination by the discriminating means, when the pattern data is switching pattern data, second reading means for reading the switching pattern data from the second storage means; When the switching pattern is read from the second storage means, at the timing within the bar indicated by the switching timing data, the tone pattern data read by the first reading means is replaced by the switching destination pattern instruction. Data to be switched to the destination tone pattern data designated by the data and read out from the first storage means. Automatic performance apparatus characterized by comprising a read control means for controlling the. 2. A timing management means for managing timing in a measure of a performance, and a first means for storing a plurality of tone pattern data of one or more measures constituted by a plurality of tone data.
And a performance based on the first tone pattern data among the plurality of tone pattern data stored in the first storage means, among the plurality of tone pattern data stored in the first storage means. A second storage means for storing, as switching pattern data, switching instruction data for instructing switching to a performance based on second musical tone pattern data, wherein the switching instruction data corresponds to a timing at which the performance should be switched within a bar. That defines a reading order between the stored tone pattern data, the plurality of tone pattern data stored in the first storage means, and the switching pattern data stored in the second storage means. Third storage means for storing order data corresponding to the music piece, and reading order data corresponding to the music piece from the third storage means Out look, and read out the specified hand <br/> stage you sequentially designates the reading of musical tone pattern data and the switching pattern data said corresponding based on the read sequence data the read out, the read designated musical tone pattern wherein the data first
A first reading means for reading from the storage means, a second reading means for reading switching instruction data in the switching pattern data designated for reading from the second storage means, and a second reading means. Control means for controlling the first reading means so as to switch from the first tone pattern data to the second tone pattern data in response to a switching instruction by the read switching instruction data,
Controlling the second tone pattern data to be read from the tone data existing after the timing in the measure at which the switching instruction is made, based on the timing in the measure managed by the timing management means; An automatic performance device comprising: a performance means for performing based on tone data in the tone pattern data read by the first reading means.