JPH11259074A - Automatic accompaniment device - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To reduce the capacity of a memory for accompaniment pattern data and to realize an accompaniment performance with rich musicality. SOLUTION: A keyboard 1 inputs performance operation information according to an operation. The switch panel 2 sets an accompaniment pattern. The CPU 3 reads a plurality of accompaniment sequence data from the accompaniment pattern memory 5 and combines them according to the setting of the accompaniment pattern from the switch panel 2 to form the accompaniment pattern data. Further, when the performance operation information input from the keyboard 1 matches the set performance operation information, the accompaniment sequence data specified by the performance operation information is combined with the accompaniment pattern data.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic accompaniment apparatus for performing automatic accompaniment according to performance pattern data.

[0002]

2. Description of the Related Art In a conventional automatic accompaniment apparatus, a plurality of accompaniment pattern data are prepared in a memory, and one accompaniment pattern data is selected according to a set accompaniment pattern, and this is repeatedly performed in a loop. With this, automatic accompaniment was performed.

[0003]

However, in the above-mentioned conventional automatic accompaniment apparatus, when various accompaniment patterns are required recently, the capacity of a memory for storing accompaniment pattern data also increases. . Also, simply performing a loop performance of a fixed accompaniment pattern stored in the memory makes the accompaniment performance monotonous, so that there is a problem that a performance having rich musicality cannot be obtained. It is an object of the present invention to reduce the capacity of a memory for accompaniment pattern data and to realize an accompaniment performance rich in musicality.

[0004]

According to the present invention, the control sequence data includes data generating means for generating accompaniment pattern data by combining a plurality of accompaniment sequence data having a predetermined time length in accordance with the control sequence data. The input information determining means determines whether or not the same performance operation information as the performance operation information is input, and the input information determination means determines that the performance operation information in the control sequence data matches the input performance operation information. Then, data synthesizing means for synthesizing the accompaniment sequence data specified by the performance operation information with the accompaniment pattern data created by the data creating means is provided. According to the present invention, when a certain accompaniment pattern is automatically played, a plurality of accompaniment sequence data are freely combined to construct the accompaniment pattern, and
In response to a particular performance operation by the player, the accompaniment sequence data specified by the performance operation is further combined with the accompaniment pattern constructed first.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, first to third embodiments of the automatic accompaniment apparatus of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a system of an automatic accompaniment device common to each embodiment. A music player (hereinafter, referred to as "keyboard") 1 composed of a keyboard or the like inputs performance operation information in accordance with an operation. The switch panel 2 is a switch for setting conditions of generated musical sounds, such as setting of a tone color, a volume, and an accompaniment pattern. The CPU 3 is a one-chip microcomputer having a built-in ROM and RAM (both not shown).
According to the keyboard processing and switch processing of the program
Commands and data input from the keyboard 1 and the switch panel 2 are temporarily stored in a RAM for processing. The display circuit 4 displays messages and the like regarding the state and operation of the device by the display processing of the CPU 1.

The accompaniment pattern memory 5 stores a large number of accompaniment sequence data having a predetermined time length (for example, one bar), not the accompaniment pattern data to be automatically played. The CPU 3 reads a plurality of accompaniment sequence data from the accompaniment pattern memory 5 in accordance with the setting of the accompaniment pattern from the switch panel 2 and combines them to generate, for example, control sequence data for creating two-measure accompaniment pattern data. The created accompaniment pattern is composed of a plurality of parts including a drum part, a bass part, and a chord part. In this embodiment, the control sequence data is constituted by a step input for inputting one sound per sound.
In addition, it is not necessary to set all the tracks of each part to the active state, and the active state of the alive (ALIV
E) or a dead state (DEAD) which is not in operation is set according to the operation mode.

In the RAM of the CPU 3, there are provided a register of a control sequence track corresponding to the control sequence data and a register of an accompaniment sequence track corresponding to the accompaniment sequence data composed of a plurality of parts. The processing of each track will be described later. Then, the sound source 6 sends an accompaniment signal to a sound system (not shown) in accordance with the sound generation processing of the CPU 3 corresponding to the accompaniment sequence track.

Next, the operation of each embodiment will be described with reference to the CPU.
This will be described with reference to the flowchart of FIG. 2 to 7 are flowcharts showing operations common to the respective embodiments. FIG. 1 shows the main flow and the timer interrupt (T
(ICK). In the main flow, after performing an initialization process (step S1), steps S2 to S2 are performed.
The loop processing of step S7 is executed. That is, a key processing for detecting the key press / release of the keyboard 1 and the strength of the key press (step S2), a switch processing for detecting the operation state of each switch of the switch panel 2 (step S3), and the display circuit 4
(Step S4), an accompaniment control process (step S4) for performing a process related to accompaniment pattern data
5), a sound generation process for controlling sound generation and mute (step S)
6) and other processing (step S7) are repeated. In addition, a sequence timer interrupt process is executed in response to a timer interrupt generated at regular intervals (step S8).

FIG. 3 is a flowchart showing a step S of the main flow shown in FIG.
6 is a flowchart of an accompaniment control process in No. 5; In this process, it is determined whether or not there is an event that any switch has been turned on in the switch process (step S9). If there is no event, this flow ends. If there is an event, it is determined whether or not the start switch has been turned on (step S10). When the switch is turned on, an accompaniment start process is performed (step S1).
1). Then, this flow ends.

If it is determined in step S10 that the start switch has not been turned on, it is determined whether or not the stop switch has been turned on (step S12). When the switch is turned on, an accompaniment stop process is performed (step S13). Then, this flow ends.

If the stop switch is not turned on in step S12, it is determined whether or not the fill-in switch is turned on (step S14). If this switch is turned on, a fill-in process is performed (step S15). Then, this flow ends.

If the fill-in switch is not turned on in step S14, the accompaniment number value switch (ACCO
It is determined whether or not (MP NUMBER VALUE SW) has been turned on (step S16). If this switch is turned on, an accompaniment number change process is performed (step S17).

If the accompaniment number value switch is not turned on in step S16, processing is performed according to the other switches that have been turned on (step S18). And
This flow ends.

FIG. 4 is a flowchart of the accompaniment start process in step S11 of FIG. In this process, a pointer P designating any one of a drum part, a bass part, and a chord part of the accompaniment part is set to "1" (step S19), and the loop processing is performed while incrementing P. In the part designated by P, the pointer CT for designating any of a plurality of control tracks of the part is set to "1" (step S20). Then, an accompaniment start process of each control sequence track of the part designated by P is performed while incrementing the CT.

In the control sequence track designated by CT, a control track is first assigned (step S21). Next, the start address of the control sequence data of the variation (in this case, variation 1) which is the accompaniment pattern set on the switch panel is set to the assigned control track (step S22). Then, the step time until the next command to be executed and the command to be executed are read from the sequence data and set in the control track in advance (step S23). next,
The operation mode of the control sequence track is set to alive (step S24).

Thereafter, the pointer CT is incremented (step S25), and the next control sequence track is designated. Then, it is determined whether or not the designated control sequence track has exceeded the maximum track number of the part (step S26). If the number is equal to or less than the maximum number, the process proceeds to step S21 to assign a control sequence track designated by CT. Then, the processing of steps S21 to S26 is repeated while incrementing the CT until the control sequence track reaches the maximum track number of the part.

If the control sequence track exceeds the maximum track number of the part at step S26, the pointer P is incremented (step S27), and the next part is designated. Then, it is determined whether or not the designated part has exceeded the maximum number (step S
28). If the number is equal to or less than the maximum number, the process proceeds to step S20, and the processes of steps S21 to S26 are repeated from the first track (CT = 1) of the part.
Then, each time the control sequence track reaches the maximum track number of the part, P is incremented in step S27.

If the specified part exceeds the maximum number of parts in step S28, the accompaniment mode is set to accompaniment start (ACCOMP START) (step S2).
9). Then, this flow ends.

FIG. 5 is a flowchart of the accompaniment stop processing in step S13 of FIG. In this processing, all notes (sounds) generated by the accompaniment are turned off (step S30), all control sequence tracks are initialized, and the operation mode is set to dead, that is, non-operation (step S31). Further, all the accompaniment sequence tracks are initialized, and the operation mode is set to dead (step S32). Next, set the accompaniment mode to accompaniment stop (ACCO
MP STOP) (step S33). And
This flow ends.

FIG. 6 is a flowchart of the fill-in process in step S15 of FIG. In this processing, all notes pronounced by the accompaniment are turned off (step S3).
4), all control sequence tracks are initialized and the operation mode is set to dead (step S35).
Further, all the accompaniment sequence tracks are initialized and the operation mode is set to dead (step S36).

Next, the pointer P for designating the accompaniment part is set to "1" (step S37). Further, the pointer CT of the control sequence track of the specified part is set to "1" (step S38). Then, while incrementing the CT, fill-in processing is performed for each control sequence track of the part designated by P.

First, a control sequence track is assigned to a control sequence track designated by CT (step S39). Next, the start address of the control sequence data of the fill-in set on the switch panel is set in the assigned control sequence track (step S40). Next, the operation mode of the control sequence track is set to alive (step S41).

Thereafter, the pointer CT is incremented (step S42), and the next control sequence track is designated. Then, it is determined whether or not the designated control sequence track has exceeded the maximum track number of the part (step S43). If the number is equal to or less than the maximum number, the process shifts to step S39 to assign a control sequence track designated by CT. Then, the processes of steps S39 to S43 are repeated while incrementing the CT until the control sequence track reaches the maximum track number of the part.

If the control sequence track exceeds the maximum track number of the part in step S73, the pointer P is incremented (step S44) and the next part is designated. Then, it is determined whether or not the designated part has exceeded the maximum number (step S
45). If the number is equal to or less than the maximum number, the process proceeds to step S38, and the processes of steps S39 to S43 are repeated from the first track (CT = 1) of the part.
Then, each time the control sequence track reaches the maximum track number of the part, P is incremented in step S44.

If the specified part exceeds the maximum number of parts in step S45, the control sequence data and the accompaniment sequence data are forcibly advanced to the point where the performance should be performed (step S46). And
The accompaniment mode is set to fill in (ACCOMP FILLIN) (step S47). Then, this flow ends.

FIG. 7 is a flowchart of the sequence timer interrupt processing in step S8 in FIG. In this process, control sequence track processing (step S48), accompaniment sequence track gate time processing (step S49), accompaniment sequence track processing (step S50), and note gate time processing (step S51) are executed.

Next, the operation of the sequence timer interrupt process in FIG. 7 for each embodiment will be described with reference to FIGS. First, a first embodiment will be described with reference to FIGS. FIG. 8 is a flowchart showing step S48 in FIG.
5 is a flowchart of processing of a control sequence track according to the first embodiment in FIG. In this process, the pointer P designating the accompaniment part is set to "1" (step S5).
2) Perform loop processing while incrementing P.
In the part designated by P, the pointer CT for designating any one of the plurality of control sequence tracks of the part is set to "1" (step S53). Then, processing of each control sequence track of the part designated by P is performed while incrementing the CT.

It is determined whether or not the mode of the control sequence track specified by CT is alive (step S54). If the mode is alive, the remaining step time until the next execution command in the control sequence track is "0". Is determined (step S55). If the remaining step time is not "0", the step time is decremented (step S56).

After the decrement in step S55, or when the control sequence track is not alive but dead in step S54, the pointer C
T is incremented (step S57), and the next control track is designated. Then, it is determined whether or not the designated control track has exceeded the maximum track number of the part (step S58). If the number is equal to or less than the maximum number, the process proceeds to step S54 to determine the operation mode of the control sequence track specified by CT.

If the operation mode of the control sequence track is alive and the remaining step time is "0" in step S55, the next execution command is determined (step S59). If the execution command is track-on, an accompaniment sequence track for playing the accompaniment sequence data of the number in the control sequence data is generated (step S60). On the other hand, if the execution command is a jump, the program jumps to a label in the control sequence data (step S61).

After the generation of the accompaniment sequence track in step S60 or the jump in step S61, the next control sequence data is read and set in the control sequence track, and the step time until the next control sequence data is set. It is set on the control sequence track (step S62). Then, step S55
Then, the remaining step time is determined.

Then, the processing from step S54 is repeated while incrementing the CT until the control sequence track reaches the maximum track number of the part. If the control sequence track exceeds the maximum track number of the part in step S58, the pointer P is incremented (step S58).
63) Specify the next part. Then, it is determined whether or not the designated part has exceeded the maximum number (step S6).
4). If the number is equal to or less than the maximum number, the process shifts to step S53 to repeat the above processing for the first control sequence track of the newly designated part. Then, each time the control sequence track reaches the maximum track number of the part, P is incremented in step S63. In step S64, if the number of designated parts exceeds the maximum number of parts, the flow ends.

FIG. 9 is a flowchart of the gate time processing of the accompaniment sequence track of the first embodiment in step S49 of FIG. In this process, the pointer P designating the accompaniment part is set to "1" (step S65),
Perform loop processing while incrementing P. In the part designated by P, the pointer ST for designating any one of the plurality of accompaniment sequence tracks of the part is set to "1" (step S66). And ST
Is performed while the accompaniment sequence track of the part designated by P is incremented.

It is determined whether or not the operation mode of the accompaniment sequence track specified in ST is alive (step S67). If the operation mode is alive, whether or not the remaining gate time in the accompaniment sequence track is "0" is determined. Is determined (step S68). If the remaining gate time is not "0", the gate time is decremented (step S69).

After the step time is decremented in step S69, or when the accompaniment sequence track is dead in step S67, ST is incremented (step S70), and the next accompaniment sequence track is designated. Then, it is determined whether or not the designated accompaniment sequence rack has exceeded the maximum track number of the part (step S71). If the number is equal to or less than the maximum number, the process shifts to step S67 to determine the operation mode of the accompaniment sequence track specified in ST. Then, the processing of steps S67 to S71 is repeated while incrementing ST until the accompaniment sequence track reaches the maximum track number of the part.

If the remaining gate time has become "0" in step S68, all notes generated by the accompaniment sequence track are turned off (step S72). Further, the accompaniment sequence track is initialized to set the operation mode to dead (step S7).
3). Then, the process shifts to step S70 to increment ST.

If the accompaniment sequence track exceeds the maximum track number of the part at step S71, the pointer P is incremented (step S7).
4) Specify the next part. Then, it is determined whether or not the designated part has exceeded the maximum number (step S7).
5). If the number is equal to or less than the maximum number, the process proceeds to step S66, and the process from step S67 is executed for the first accompaniment sequence track of the newly designated part. Each time the accompaniment sequence track reaches the maximum track number of the part, P is incremented in step S74. If the number of designated parts exceeds the maximum number of parts in step S75, the flow ends.

FIG. 10 is a flowchart of the processing of the accompaniment sequence track of the first embodiment in step S50 of FIG. In this process, the pointer P for designating the accompaniment part is set to "1" (step S76), and the loop process is performed while incrementing P. In the part designated by P, the pointer ST for designating the accompaniment sequence track of the part is set to "1" (step S).
77). Then, while the ST is incremented, the processing of the accompaniment sequence track of the part specified by P is performed.

It is determined whether or not the operation mode of the accompaniment sequence track designated by ST is alive (step S78). If the operation mode is alive, the remaining step time until the next execution command in the accompaniment sequence track is "Alive". "0" (step S7).
9). If the remaining step time is not "0", the step time of the accompaniment sequence track is decremented (step S80).

After the decrement in step S80, or when the accompaniment sequence track is not alive but dead in step S78, the pointer ST
Is incremented (step S81), and the next accompaniment sequence track is designated. Then, it is determined whether or not the specified accompaniment sequence track has exceeded the maximum track number of the part (step S82). If the number is equal to or less than the maximum number, the process shifts to step S78 to determine the operation mode of the accompaniment sequence track specified in ST.
If the operation mode of the accompaniment sequence track is alive in step S78 and the remaining step time until the next execution command becomes "0" in step S79, the execution command is determined (step S83).

If the execution command is the track end, the operation mode of the accompaniment sequence track is set to dead (step S84). Then, the flow shifts to step S81, where ST is incremented and the next accompaniment sequence track is designated.

On the other hand, if the execution command is a note-on command of note number n in step S83, the note of note number n is set on by the velocity and gate time in the accompaniment sequence data and turned on (step S85). ). Further, the next accompaniment sequence data is read out and set on the accompaniment sequence track, and the step time until the next accompaniment sequence data is set on the accompaniment sequence track (step S8).
6). Thereafter, the flow shifts to step S79 to determine the remaining step time. Then, in step S82, the processing of steps S78 to S82 is repeated while incrementing ST until the accompaniment sequence track reaches the maximum track number of the part.

If the accompaniment sequence track exceeds the maximum track number of the part at step S82, the pointer P is incremented (step S8).
7) Specify the next part. Then, it is determined whether or not the designated part has exceeded the maximum number (step S8).
8). If the number is equal to or less than the maximum number, the flow shifts to step S77 to repeat the processing from step S78 for the first accompaniment sequence track of the newly designated part. Then, each time the accompaniment sequence track reaches the maximum number of tracks of the part, P is incremented in step S87. If the number of designated parts exceeds the maximum number of parts in step S88, the flow ends.

FIG. 11 is a diagram showing processing of the control track in the first embodiment in the case of taking a drum part as an example. FIG. 11A shows the accompaniment sequence data set in the drum control sequence track “00”. The first line of the data indicates that a track 1 for turning on the accompaniment sequence track number “01” at the step time “000” only during the gate time “192 (1 bar)” is generated. Therefore, the remaining step time is "0" in step S55 in FIG. 8, and the execution command is track-on in step S59. Therefore, immediately in step S60, the accompaniment sequence data of the accompaniment sequence track number "01" is played. Generate an accompaniment sequence track.

The second line of the data shown in FIG. 11A is a track 2 for turning on the accompaniment sequence track number "25" only during the gate time "192 (1 bar)" at the step time "000". Indicates that it is generated. Therefore, the remaining step time is "0" in step S55 of FIG. 8, and the execution command is track-on in step S59, so that step S55 is immediately executed.
At 60, an accompaniment sequence track for playing the accompaniment sequence data of the accompaniment sequence track number "25" is generated.

In the third line of the data shown in FIG. 11A, the accompaniment sequence track number "25" is added to the gate time "1" after the step time "192" (that is, after one bar).
92 (one bar) ". Therefore, step S in FIG.
At 55, the remaining step time is "192", and the step time is decremented at step S56. When the remaining step time becomes "0" after the elapse of 192 steps, the execution command is track-on in step S59.
, An accompaniment sequence track for playing the accompaniment sequence data of the accompaniment sequence track number “64” is generated.

The fourth line in FIG. 11A indicates that the first line is jumped after the step time "192". Therefore, in step S55 of FIG. 8, the remaining step time is “192”, and step S56
Decrement the step time. And
After the elapse of 192 steps, that is, when the remaining step time becomes "0" after the end of track 3, step S
Since the execution command is a jump at 59, the label in the data, ie, FIG.
Jump to the first line of (1).

FIG. 11 (2) shows a state of generating an accompaniment sequence track by controlling the control sequence track based on FIG. 11 (1). That is, in the first measure, the accompaniment sequence track number “0”
A track 1 executing the “1” and a track 2 executing the accompaniment sequence track number “25” are generated, and a track 3 executing the accompaniment sequence track number “64” is generated in the following one bar. Then, the accompaniment pattern of the two measures is repeatedly performed.

FIG. 12 is a diagram showing the processing of three accompaniment sequence tracks of the drum part in the case of FIG. In this case, the accompaniment sequence track number “01”
Is a bass, an accompaniment sequence track number "25" is a snare, and an accompaniment sequence track number "64" is a hi-hat.

The first line of the bus track has a step time "000" and a note number "36" with a velocity 96
Indicates that the switch is turned on for a gate time of 48 steps. Therefore, step S79 in FIG.
In step S85, the remaining step time is "0" and the execution command is the note number ON in step S83.
An accompaniment sequence track for turning on the note (bus) No. 6 for only the velocity 96 and the gate time 48 is generated.

The second line is the step time "096"
Indicates that the note number "36" is turned on at a velocity of 85 and a gate time of 48 steps. Therefore, the remaining step time is "96" in step S79 in FIG. 10, and the step time is decremented in step S80. And 9
When the remaining step time becomes "0" after the lapse of 6 step times, the execution command is the note number on in step S83, and therefore, in step S85, the note (bus) of note number "36" is moved to the velocity 85 and the gate time. An accompaniment sequence track that is turned on for 48 hours is generated.

The third line is the step time "096"
Indicates that the track ends. Therefore, the remaining step time is "96" in step S79 in FIG. 10, and the step time is decremented in step S80. When the remaining step time becomes “0” after 96 step times have elapsed,
Since the execution command is track end in step S83, the operation mode of the accompaniment sequence track is set to dead in step S84.

As a result, the bus of the track 1 is
As shown in (2), a two-beat accompaniment sequence is formed in which the 1/4 beat and the 3/4 beat of the first measure are added to the intensity.

The first line of the snare track has a step number of “048” and a note number of “38” with a velocity of 8
0 indicates that the gate is turned on only for a gate time of 48 steps. Therefore, step S7 in FIG.
At 9, the remaining step time is "48", and the step time is decremented at step S80. When the remaining step time becomes "0" after the elapse of the 48 step time, the execution command is the note number ON in step S83, so that step S8
At 5, an accompaniment sequence track for turning on the note (snare) of note number "38" for only the time of the velocity 80 and the gate time 48 is generated.

The second line is a step time "144".
Indicates that the note number "38" is turned on at a velocity of 69 for a gate time of 48 steps. Therefore, in step S79 of FIG. 10, the remaining step time is “144”, and step S80
Decrement the step time. And
If the remaining step time becomes “0” after the elapse of the 144 step time, the execution command is the note number on in step S83. Therefore, in step S85, the note (snare) of the note number “38” is set to the velocity 69 and the gate time. An accompaniment sequence track that is turned on for 48 hours is generated.

The third line is a step time "192".
Indicates that the track ends. Therefore, the remaining step time is “192” in step S79 in FIG. 10, and the step time is decremented in step S80. When the remaining step time becomes "0" after the elapse of the 192 step time, the execution command is track end in step S83, so that the operation mode of this accompaniment sequence track is set to dead in step S84.

As a result, the snare of the track 1 is shown in FIG.
As shown in (2), a two-beat accompaniment sequence is formed in which the intensity is added to the 2/4 beat and 4/4 beat of the first measure.

The first line of the hi-hat track indicates that the note number "42" is turned on at a velocity of 80 and a gate time of 24 steps at a step time of "000". Therefore, in step S79 in FIG. 10, the remaining step time is “0”,
Since the execution command is the note number on in step S83, an accompaniment sequence track for turning on the note (hi-hat) of note number "42" for the time of the velocity 80 and the gate time 24 is immediately generated in step S85.

The second to eighth lines indicate that the note number "42" is turned on at a velocity of 80 and a gate time of 24 steps at step times "024" to "168". . Therefore, in step S79 of FIG.
"168", and the step time is decremented in step S80. When the remaining step time becomes "0" after the elapse of 24-168 step times, since the execution command is the note number ON in step S83, the note (hi-hat) having the note number "42" is velocity-converted in step S85. An accompaniment sequence track that is turned on only for the period of 80 and the gate time 24 is generated.

The ninth line is a step time "192".
Indicates that the track ends. Therefore, the remaining step time is “192” in step S79 in FIG. 10, and the step time is decremented in step S80. When the remaining step time becomes "0" after the elapse of the 192 step time, the execution command is track end in step S83, so that the operation mode of this accompaniment sequence track is set to dead in step S84.

As a result, as shown in FIG. 12 (2), the hi-hat of track 1 forms an accompaniment sequence of eight beats of the same strength for every 1/8 beat of one bar.

FIG. 13 shows a processing in which only the accompaniment sequence track of the hi-hat is changed from the accompaniment sequence track number "64" to the accompaniment sequence track number "70" in the processing of the three accompaniment sequence tracks of the drum part in the case of FIG. It is.

In FIG. 13A, the first line of the hi-hat track indicates that the note number "42" is turned on at a velocity of 80 and a gate time of 12 steps at a step time "000". I have. Therefore, the remaining step time is "0" in step S79 in FIG. 10, and the execution command is the note number on in step S83, so that step S79 is immediately executed.
At 85, an accompaniment sequence track for turning on the note (hi-hat) of note number "42" for only the time of the velocity 80 and the gate time 12 is generated.

The second to sixteenth lines indicate that the note number "42" is turned on at a velocity of 80 and a gate time of 12 steps at step times "012" to "180". . Therefore, in step S79 of FIG.
"180", and the step time is decremented in step S80. Then, when the remaining step time becomes "0" after the elapse of 12 to 180 step times, the execution command is the note number on in step S83. Therefore, in step S85, the note (hi-hat) of the note number "42" is set to the velocity. An accompaniment sequence track that is turned on only for the time of 80 and the gate time 12 is generated.

On the 17th line, the step time “192”
Indicates that the track ends. Therefore, the remaining step time is “192” in step S79 in FIG. 10, and the step time is decremented in step S80. When the remaining step time becomes "0" after the elapse of the 192 step time, the execution command is track end in step S83, so that the operation mode of this accompaniment sequence track is set to dead in step S84.

As a result, as shown in FIG. 13 (2), the hi-hat of track 1 forms a 16-beat accompaniment sequence of the same strength for each 1/16 beat of the first bar.

As described above, in the accompaniment pattern memory 5 shown in FIG. 1, not a series of accompaniment pattern data itself to be automatically played but a large number of accompaniment sequence data of a predetermined time length constituting the accompaniment pattern data are individually stored. Then, a series of accompaniment pattern data automatically played according to these combinations is created each time. Therefore, the capacity of the memory for accompaniment pattern data can be reduced.

FIG. 14 shows a modification of the control sequence shown in FIG. In this process, other accompaniment sequence data according to the input of specific performance operation information by the player is further added to the accompaniment pattern data composed of a combination of a plurality of accompaniment sequence data. Specifically, after waiting for specific performance operation information (for example, chord change information), if the target performance operation information occurs (is input), the sub-track specified by the control sequence data is executed. The sub-track will be described later.

In FIG. 14, a pointer P for designating an accompaniment part is set to "1" (step S89), and a loop process is performed while incrementing P. In the part designated by P, the pointer CT for designating any of a plurality of control tracks of the part is set to "1" (step S90). Then, processing of each control track of the part designated by P is performed while incrementing the CT.

It is determined whether or not the operation mode of the control sequence track designated by CT is alive (step S91). If the operation mode is alive, the remaining step time until the next execution command in the control sequence track is "Alive". It is determined whether it is "0" (step S92). If the remaining step time is not "0", the step time is decremented (step S93).

After the decrement in step S93, or when the control sequence track is not alive but dead in step S91, the pointer C
T is incremented (step S94), and the next control track is designated. Then, it is determined whether or not the designated control track has exceeded the maximum track number of the part (step S95). If the number is equal to or less than the maximum number, the process shifts to step S91 to determine the operation mode of the control sequence track specified by CT.

When the control sequence track is alive and the remaining step time is "0" in step S92, the next execution command is determined (step S96). If the execution command is track on, an accompaniment sequence track for playing the accompaniment sequence data of the number in the control sequence data is generated (step S97). If the execution command is a jump in step S96, the program jumps to a label in the control sequence data (step S98). In step S96, if the execution command is a weight (WATEn; n is the number of a subtrack) that further takes into account other accompaniment sequence data according to the player's input of specific performance operation information,
Since the specific performance operation information to be waited for has occurred this time, the sub-track with the number n specified in the control sequence data is executed (step S9).
9).

After the accompaniment sequence track is generated in step S97, after jumping in step S98, or after executing the subtrack in step S99 or when there is no waiting object, the next control sequence data And set it on the control sequence track,
The step time until the next control sequence data is set in the control sequence track (step S100). Then, the process shifts to step S92 to determine the remaining step time.

Then, the process from step S92 is repeated while incrementing the CT until the control sequence track reaches the maximum track number of the part. If the control sequence track exceeds the maximum track number of the part in step S95, the pointer P is incremented (step S95).
101), the next part is designated. Then, it is determined whether or not the designated part has exceeded the maximum number (step S1).
02). If the number is equal to or less than the maximum number, the process shifts to step S53 to repeat the above processing for the first control sequence track of the newly designated part. Then, each time the control sequence track reaches the maximum track number of the part, P is incremented in step S101. In step S102, if the specified part exceeds the maximum number of parts,
This flow ends.

FIG. 15 is a diagram showing the processing of the control track for executing the sub-track in the case of taking the drum part of FIG. 11 as an example. The control sequence track (Drum CTRL00) in FIG.
1 is the same as the control track. Therefore, as shown in FIG. 15 (2), by controlling the drum control track 1, in the first bar, the track 1 executing the accompaniment sequence track number "01" and the track 2 executing the accompaniment sequence track number "25" Is generated, and a track 3 for executing the accompaniment sequence track number “64” is generated in the next bar. Then, the accompaniment pattern of the two measures is repeatedly performed.

On the other hand, in the control sequence track (Drum CTRL01) of FIG. 15A, the first line indicates that the wait command (WAIT1) is executed with a step time of “000”. This execution command is performed when the performance operation information input from the keyboard is set to the performance operation information (Ma
tch 00) is a command for executing a sub-track. The fourth line of the sub track has a step time “000” and an accompaniment sequence track number “7”.
2 indicates that a track 4 that turns on only during the gate time “192” is generated. The fifth line of the sub-track indicates that the track end is reached at the step time “192”.

Therefore, as shown in FIG.
As soon as the performance operation information that matches the set performance operation information (Match 00) is input, an accompaniment sequence track for playing the accompaniment sequence data of the accompaniment sequence track number “72” is generated. In this case,
As the performance operation information for executing the sub-track, for example, chord change information can be considered. In this case, the sub-track is executed at the same time as the player changes the chord.

As described above, according to the first embodiment,
The CPU 3 in FIG. 1 includes a data creating means for creating accompaniment pattern data by combining a plurality of accompaniment sequence data having a predetermined time length in accordance with the control sequence data, and a performance operation included in the control sequence data (control sequence data). Input information discriminating means for discriminating whether or not the same performance operation information as the information has been input, and when the input information discriminating means determines that the performance operation information in the control sequence data matches the inputted performance operation information. Constitutes data synthesizing means for synthesizing the accompaniment sequence data specified by the performance operation information with the accompaniment pattern data created by the data creating means.

When a certain accompaniment pattern is automatically played, the accompaniment pattern is constructed by freely combining a plurality of accompaniment sequence data. In addition, the performance operation is performed according to a specific performance operation by the player. The specified accompaniment sequence data is further combined with the accompaniment pattern constructed first. Therefore, it is possible to reduce the capacity of the memory for the accompaniment pattern data and to realize an accompaniment performance rich in musicality.

Next, a second embodiment will be described with reference to FIGS. In the second embodiment, when the performance operation information to be waited is input, the subtrack is not executed immediately, but the subtrack is executed when the operation mode is wait.

FIG. 16 is a flowchart of the control track processing of the second embodiment in step S48 of FIG. In this processing, a pointer P for designating an accompaniment part
Is set to “1” (step S103), and the loop processing is performed while incrementing P. In the part designated by P, the pointer CT for designating any one of the plurality of control tracks of the part is set to "1" (step S104). Then, processing of each control track of the part designated by P is performed while incrementing the CT.

It is determined whether or not the operation mode of the control sequence track specified by CT is alive (step S105). If the operation mode is alive, the remaining step time until the next execution command in the control sequence track is "Alive". It is determined whether it is "0" (step S106). If the remaining step time is not “0”, it is determined whether or not the operation mode is wait (step S107). If the operation mode is not wait, the step time of the control sequence track is decremented (step S1).
08).

After the decrement in step S108, or when the operation mode of the control sequence track is not alive but dead in step S105, the pointer CT is incremented (step S1).
09), specify the next control track. Then, it is determined whether or not the designated control track has exceeded the maximum track number of the part (step S11).
0). If the number is equal to or less than the maximum number, the process proceeds to step S105 to determine the operation mode of the control sequence track specified by CT.

If the operation mode of the control sequence track is alive and the remaining step time is "0" in step S106, the operation mode is set to alive (step S111). Then, the next execution command is determined (step S112). If the execution command is track on, an accompaniment sequence track for playing the accompaniment sequence data of the number in the control sequence data is generated (step S1).
13). If the execution command is a jump in step S114, the program jumps to a label in the control sequence data (step S114). If the execution command is a wait in step S112, the operation mode is set to wait (step S1).
15).

After generating the accompaniment sequence track in step S113, jumping in step S114, or setting the operation mode to wait in step S115, the next control sequence data is read out and set in the control sequence track. Then, the step time until the next control sequence data is set in the control sequence track (step S116). Then, the process shifts to step S106 to determine the remaining step time.

If the remaining step time is not "0" in step S106, and if the operation mode is wait in step S107, it is determined whether or not the input performance operation information matches the information to be waited for. (Step S117). If they match, the waiting target has occurred this time, and the sub-track specified by the control sequence data is executed (step S118). After executing the sub-track or when the input performance operation information does not match the information to be waited for, the process proceeds to step S108, and the step time of the control sequence track is decremented. Then, in step S109, CT is incremented.

As a result of the increment, step S11
At 0, if the control track exceeds the maximum track number of the part, the pointer P is incremented (step S119), and the next part is designated. Then, it is determined whether or not the designated part has exceeded the maximum number (step S120). If the number is equal to or less than the maximum number, the process proceeds to step S104, and the process from step S105 is executed for the first control sequence track of the newly designated part. Then, each time the control sequence track reaches the maximum track number of the part, P is incremented in step S119. If the number of designated parts exceeds the maximum number of parts in step S120, the flow ends.

FIG. 17 is a diagram showing processing of a control track for executing a sub-track when a drum part is taken as an example. The control sequence track (Drum CTRL00) in FIG. 15 is the same as the control track in FIG. 11 of the first embodiment.
Therefore, as shown in FIG. 17 (2), by controlling the drum control track 1, in the first bar, the track 1 executing the accompaniment sequence track number "01" and the track 2 executing the accompaniment sequence track number "25" Is generated, and a track 3 for executing the accompaniment sequence track number “64” is generated in the next bar.
Then, the accompaniment pattern of the two measures is repeatedly performed.

On the other hand, in the control sequence track (Drum CTRL01) of FIG. 17A, a wait command (WAIT1) is executed at a step time of “000”. This execution command is a command for executing the sub-track when the performance operation information input from the keyboard matches the performance operation information (Match 00) set in the control sequence data. Further, it shows that a track 4 that turns on the accompaniment sequence track number “72” only during the gate time “192” is generated at the step time “000”. Further, it indicates that the track end is reached at the step time “192”. However, as shown in the flow of FIG. 16, even when the set performance operation information is input, the sub-track is executed when the operation mode is wait.

Therefore, as shown in FIG.
Only when the drum control track 2 is weighted, if performance operation information that matches the set performance operation information (Match 00) is input, the accompaniment sequence that plays the accompaniment sequence data of the accompaniment sequence track number “72”. Generate a track. For example, if the player changes chords while the operation mode is set to wait,
Execute sub-track at the same time.

As described above, according to the second embodiment,
The CPU 3 accepts only performance operation information input within a specified range during the progress of the control sequence data. Therefore, the accompaniment data changes interactively according to the player's operation and the state of the device, and various accompaniment performances can be performed between predetermined timings.

Next, a third embodiment will be described with reference to FIG. Also in the third embodiment, as in the second embodiment, when the performance operation information to be waited is input, the sub-track is not executed immediately, but the sub-track is executed when the operation mode is wait. . Further, when the execution command of the sub-track is a one-shot execution command, the sub-track is executed "once".

FIG. 18 is a flowchart of the processing of the control sequence track of the third embodiment in step S48 of FIG. In this process, the pointer P for designating the accompaniment part is set to "1" (step S121),
Perform loop processing while incrementing P. In the part designated by P, the pointer CT designating any of the plurality of control tracks of the part is set to "1".
(Step S122). Then, processing of each control track of the part designated by P is performed while incrementing the CT.

It is determined whether or not the operation mode of the control sequence track specified by CT is alive (step S123). If the operation mode is alive, the remaining step time until the next execution command in the control sequence track is "Alive". It is determined whether it is "0" (step S124). If the remaining step time is not "0", it is determined whether or not the operation mode is wait (step S125). If the operation mode is not wait, the step time of the control sequence track is decremented (step S1).
26).

After the decrement in step S126, or when the operation mode of the control sequence track is not alive but dead in step S123, the pointer CT is incremented (step S1).
27), specify the next control track. Then, it is determined whether or not the designated control track has exceeded the maximum track number of the part (step S12).
8). If the number is equal to or less than the maximum number, the process shifts to step S123 to determine the operation mode of the control sequence track specified by CT.

When the operation mode of the control sequence track is alive and the remaining step time is "0" in step S124, the operation mode is set to alive (step S129). Then, the next execution command is determined (step S130). If the execution command is track on, an accompaniment sequence track for playing the accompaniment sequence data of the number in the control sequence data is generated (step S1).
31). If the execution command is a jump in step S130, the process jumps to a label in the control sequence data (step S132). If the execution command is a wait in step S130, the operation mode is set to wait (step S1
33).

After generating the accompaniment sequence track in step S131, jumping in step S132, or setting the operation mode to wait in step S133, the next control sequence data is read out and set in the control sequence track. Then, the step time until the next control sequence data is set in the control sequence track (step S134). Then, the process shifts to step S124 to determine the remaining step time.

If the remaining step time is not "0" in step S124, and if the operation mode is wait in step S125, it is determined whether or not the input performance operation information matches the information to be waited for. (Step S135). If they match, the waiting target has occurred this time, and the sub-track specified by the control sequence data is executed (step S136). After executing the sub-track, it is determined whether or not the execution command is a one-shot wait (step S13).
7). If it is a one-shot wait, the operation mode is set to alive (step S138). After setting to alive, or when the performance operation information input in step S135 does not match the information to be waited for, or when the execution command is not one-shot wait in step S137, the process proceeds to step S126. , Decrement the step time of the control sequence track. Then, step S127
, The CT is incremented.

As a result of the increment, step S12
In step 8, if the control sequence track exceeds the maximum track number of the part, the pointer P is incremented (step S139), and the next part is designated. Then, it is determined whether or not the designated part has exceeded the maximum number (step S140). If the number is equal to or less than the maximum number, the process shifts to step S122 to execute the processing from step S123 onward from the first control sequence track of the newly designated part. And
Each time the control sequence track reaches the maximum number of tracks for that part, P
Is incremented. If the number of designated parts exceeds the maximum number of parts in step S140, the flow ends.

As described above, according to the third embodiment,
The CPU 3 accepts only performance operation information input within a specified range during the progress of the control sequence data. Further, in this case, if the execution command is a one-shot wait, performance operation information is received only once within the range. Therefore, the accompaniment data changes interactively according to the operation of the player and the state of the apparatus, and a variety of accompaniment performances can be performed only once during a predetermined timing.

In the third embodiment, the performance operation information is received only once within a predetermined range. However, by setting an arbitrary number of times, the sub-track may be executed the set number of times. It is possible.

Further, in each of the above embodiments, in the processing of the sequence timer interrupt of FIG. 7, the processing is performed for all the parts and all the control sequence tracks. Store in etc.
The processing may be performed only on the control sequence track to be processed. In this case, since the control sequence track not to be processed is not specified, the processing time can be reduced as compared with the case where the processing is performed by specifying all the parts and all the control sequence tracks.

[0102]

According to the present invention, when a certain accompaniment pattern is automatically played, a plurality of accompaniment sequence data are freely combined to construct the accompaniment pattern.
In response to a particular performance operation by the player, the accompaniment sequence data specified by the performance operation is further combined with the accompaniment pattern constructed first. Therefore, it is possible to reduce the capacity of the memory for the accompaniment pattern data and to realize an accompaniment performance rich in musicality.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a system of an automatic accompaniment device in each embodiment.

FIG. 2 is a flowchart of main and timer interrupts executed by a CPU.

FIG. 3 is a flowchart of an accompaniment control process in FIG. 2;

FIG. 4 is a flowchart of an accompaniment start process in FIG. 3;

FIG. 5 is a flowchart of an accompaniment stop process in FIG. 3;

FIG. 6 is a flowchart of a fill-in process in FIG. 3;

FIG. 7 is a flowchart of a sequence timer interrupt process in FIG. 2;

FIG. 8 is a flowchart of a control sequence track process of FIG. 7 in the first embodiment.

FIG. 9 is a flowchart of a gate time process of the accompaniment sequence track of FIG. 7 in the first embodiment.

FIG. 10 is a flowchart of the accompaniment sequence track processing of FIG. 7 in the first embodiment.

FIG. 11 is a view showing processing of a control sequence track in the first embodiment when a drum part is taken as an example.

FIG. 12 is a diagram showing processing of an accompaniment sequence track in FIG. 11;

FIG. 13 is a view showing processing of an accompaniment sequence track in FIG. 11;

FIG. 14 is a flowchart of a control sequence track process of FIG. 7 in the first embodiment.

FIG. 15 is a diagram showing processing of a control sequence track in the first embodiment when a drum part is used as an example.

FIG. 16 is a flowchart of the control sequence track processing of FIG. 7 in the second embodiment.

FIG. 17 is a diagram showing processing of a control sequence track in the second embodiment when a drum part is taken as an example.

FIG. 18 is a flowchart of the control sequence track processing of FIG. 7 in the third embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Keyboard 2 Switch panel 3 CPU 4 Display circuit 5 Accompaniment pattern memory 6 Sound source

Claims (3)

[Claims] 1. A data creation means for creating accompaniment pattern data by combining a plurality of accompaniment sequence data having a predetermined time length according to control sequence data, and a performance identical to the performance operation information included in the control sequence data. Input information determining means for determining whether or not operation information has been input; and when the input information determining means determines that the performance operation information of the control sequence data matches the input performance operation information, An automatic accompaniment apparatus, comprising: data synthesizing means for synthesizing the accompaniment sequence data specified by the performance operation information with the accompaniment pattern data created by the data creating means. 2. The automatic accompaniment apparatus according to claim 1, wherein said input information discriminating means accepts performance operation information input only within a designated range during the progress of said control sequence data. 3. The automatic accompaniment apparatus according to claim 1, wherein said input information discriminating means receives performance operation information input within a specified number of times.