JPH0827625B2 - Automatic playing device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an automatic performance device provided with a memory for storing performance data, and particularly to displaying the progress state of a musical piece when the performance data stored in the memory is read out. Automatic playing device.

[Prior Art] As a prior art relating to this type of device, there is known one that displays the amount of memory used by the number of addresses, as shown in Japanese Utility Model Laid-Open No. 62-2096.

[Problems to be Solved by the Invention] However, in the above-mentioned conventional apparatus, since the remaining amount of the memory is visually displayed, it is effective at the time of recording the performance data, but it is stored in the memory by the recording. Since the amount of performance data to be played differs depending on the type of music, it was not possible to grasp the progress position of the music when reading the performance data.

The present invention has been devised in view of the above problems, and an object thereof is to provide an automatic performance device capable of recognizing a progress state of a music when reading performance data.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the structural feature of the first invention (the invention according to claim 1) is that a plurality of performance data relating to a musical performance is reproduced in accordance with the progress of the musical composition. In an automatic performance device provided with performance data storage means for storing and reading means for sequentially reading out the plurality of performance data at a predetermined tempo,
Progressive position measuring means for measuring the progress position of the music when the performance data is read by the reading means according to the progress of the music, and the measured music with respect to the entire length of the music relating to the performance data stored in the performance data storage means. The ratio calculating means for calculating the ratio of the moving position and the display means for displaying the calculated ratio are provided.

The second aspect of the invention (the invention according to claim 2) is characterized in that a plurality of performances are composed of performance event data for controlling the generation of musical tones and relative time data representing a read interval of each performance event data. Performance data storage means for storing data as the music progresses, tempo clock signal generation means for generating a tempo clock signal at a rate corresponding to the speed at which the music progresses, and the relative time data is obtained by counting the tempo clock signal. In an automatic performance device having a reading means for sequentially reading the performance event data at corresponding time intervals, an elapsed time when the reading means reads the performance event data in correspondence with the tempo clock number. Measuring means and reading of all performance event data stored in the performance data storage means In that provided the percentage calculating means for calculating the percentage of elapsed time that the measurement for the entire time corresponding to the tempo number of clocks is required, and display means for displaying the rate that the calculated tooth.

The third aspect of the invention (the invention according to claim 3) is characterized in that the elapsed time measuring means of the second aspect of the invention is provided with the tempo clock signal from the start of reading the performance event data by the reading means. It is composed of counting means for counting.

The fourth aspect of the invention (the invention according to claim 4) is characterized in that the elapsed time measuring means of the second invention is the relative time from the start of reading the performance event data by the reading means. It consists of an accumulation means for accumulating data.

The fifth aspect of the invention (the invention according to claim 6) is characterized in that the ratio calculating means of the second invention stores the whole time data representing the whole time. And a calculating means for calculating the ratio of the elapsed time measured by the elapsed time measuring means to the total time represented by the total time data stored in the total time storage means.

The sixth aspect of the present invention (the invention according to claim 6) is characterized in that the ratio calculating means of the second aspect of the present invention is used by the performance data storage means before the reading of the performance event data by the reading means is started. Accumulating means for accumulating all the relative time data stored in to calculate the total time,
The calculation means calculates the ratio of the elapsed time measured by the elapsed time measuring means to the total time calculated by the accumulating means.

The seventh aspect of the invention (the invention according to claim 7) is characterized by a performance data storage means for storing a plurality of performance data related to musical instrument performance at a plurality of addresses in accordance with the progress of a musical composition, and a predetermined performance data storage means. In an automatic performance device having a read-out means for generating an address signal stepping at a tempo and sequentially reading performance data stored at an address designated by the address signal, the final performance data in the performance data storage means is provided. The ratio calculation means calculates the ratio of the address value to the stored address value at the time of reading the performance data by the read means, and the display means for displaying the calculated ratio.

[Operation of the Invention] In the first aspect of the invention configured as described above, the progress position measuring means measures the progress position of the music in reading the performance data, and the ratio calculating means measures the measured music with respect to the entire length of the music. The ratio of the advancing position is calculated, and the calculated ratio is displayed by the display means.

Further, in the second invention configured as described above,
The elapsed time measuring means measures the elapsed time in reading the performance data in correspondence with the number of tempo clocks, and the ratio calculating means measures the total time required for reading all the performance event data stored in the performance data storage means. The ratio of the measured elapsed time is calculated, and the calculated ratio is displayed by the display means.

In the third invention, the counting means as the elapsed time measuring means in the second invention counts the elapsed time by counting the tempo clock signal.

In the fourth invention, the elapsed time is measured by accumulating the relative time data from the start of reading the performance event data by the accumulating means as the elapsed time measuring means in the second invention. .

In the fifth aspect of the invention, the total time data storage means and the arithmetic means of the second aspect ratio calculation means cooperate with each other and are represented by the total time data stored in the total time storage means. The elapsed time ratio is calculated based on the total time and the elapsed time measured by the elapsed time measuring means.

Further, in the sixth aspect of the invention, the total time calculated by accumulating all the relative time data in cooperation with the accumulating means and the arithmetic means constituting the ratio calculating means of the second aspect of the invention, The elapsed time ratio is calculated based on the elapsed time measured by the elapsed time measuring means.

Further, in the seventh aspect of the invention configured as described above, the ratio calculation means calculates the ratio of the address value at the time of reading the performance data by the reading means with respect to the final storage address value of the performance data in the performance data storage means, The calculated ratio is displayed by the display means.

[Effects of the Invention] As can be understood from the above description of the operation, according to the first invention, since the ratio of the progress position of the music being reproduced to the length of the entire music is displayed, the user can The progress position of the music can be recognized, and the display of the ratio makes it easy to intuitively grasp which side the music is currently progressing. This allows the user to know to what extent the automatic performance will continue. In addition, by admixing operations such as fast-forwarding and backward moving of performance data, the progress position of the music can be set at a desired position in the music, and the portion to be listened to can be quickly found.

Further, according to the second to sixth inventions, the progress of the music depends on the tempo clock means from the tempo clock signal generating means, and the elapsed time ratio calculated by the ratio calculating means is based on the tempo clock signal. The thing
Since the displayed elapsed time ratio will be accurate,
In addition to the effect of the first invention, the progress state of the music is accurately grasped.

Further, according to the seventh aspect of the present invention, the progress position of the current music piece is estimated from the address signal value which is sequentially stepped up by the reading means, so that the current music piece can be detected without providing a special circuit. Since it is possible to detect the traveling position,
In addition to the effect of the first invention, the ratio can be displayed with a simple structure. As a result, the manufacturing cost of the automatic performance device is reduced.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the entire automatic musical instrument according to the present invention. The automatic musical instrument has an operation panel 10. The operation panel 10 includes a start operator 11, a stop operator 12, a fast-forward operator 13, a backward operator 14, and a recording operator.
15, a function operator 16 and a denpo operator 17 are provided. Each operator 11 to 16 designates each operation mode of the automatic performance device, and the tempo operator 17 sets the tempo of automatic performance. . The operation of each of these operators 11 to 17 is detected by each switch or a digital position sensor provided corresponding to the operators 11 to 17 in the switch group 10a. Is connected to bus 20. Further, the operation panel 10 is provided with a display 18 for displaying the progress position of the automatic performance by a two-digit number (0 to 99), and the display 18 is controlled by the display control circuit 10b connected to the bus 20. It is supposed to be done.

Also connected to the bus 20 are a tempo oscillator 31, a MIDI receiver 32 and a MIDI transmitter 33. The tempo oscillator 31 is composed of a variable oscillator, and generates tempo clock means at a cycle (rate) according to the set tempo. The MIDI receiver 32 is a MIDI (Musical Instrument Digital
Interface) is an interface circuit for inputting performance data represented by a code, and the receiver 32 has an electronic musical instrument, a performance operation device (a device for outputting only performance data by a keyboard or the like without a musical tone signal generator), Other automatic performance devices etc. are connected. The MIDI transmitter 33 is an interface circuit that outputs performance data represented by MIDI codes. The transmitter 33 does not include an electronic musical instrument, a sound source device (keyboard or other performance operating means, and produces musical sound according to input performance data. Signal generating device), other automatic performance devices, etc. are connected.

Furthermore, a microcomputer 40 and a performance data memory 50 are connected to the bus 20. The microcomputer 40 comprises a CPU 41, a program memory 42 and a working memory 43. The CPU 41 executes the "main program" corresponding to the flowchart of FIG. 2 by turning on the power switch (not shown), and responds to the arrival of the tempo clock signal from the tempo oscillator 31 and responds to the flowchart of FIG. Execute the interrupted "tempo clock interrupt program". Program memory 42 is ROM
And stores the "main program" and the "tempo clock interrupt program", and also stores the sub-programs corresponding to the flowcharts of FIGS. 4 to 14 corresponding to the subroutines of the programs.

The working memory 43 is composed of a RAM, and temporarily stores the variable data necessary for executing the programs. The main items of the variable data are listed below.

Tempo clock TCL: increments by 1 each time the tempo clock signal arrives, indicating the progress of the automatic performance device.

Pointer PNT: Indicates the address of performance data memory 50. (0 to DTEND) Tempo data TMP: Indicates the tempo speed of automatic performance.

Current tempo clock count NTM: Indicates the cumulative value of the tempo clock counts up to the present.

Total tempo clock count TTM: Indicates the total tempo clock count for one song.

Time data DUR: Indicates the time from the event data to the occurrence of the next event data.

Display data DSP: Indicates the display value displayed on the display 18.

Jump data PC10 ... Represents the jumping position in jump mode.

Mode data MODE: Indicates the 5 types of modes (see Table 1 on the next page) for which the automatic performance device is set.

Sub-mode data MODE: Indicates the five types of sub-modes (see Table 2 on the next page) for which the automatic performance device is set.

The performance data memory 50 is composed of a RAM having a storage area corresponding to addresses ranging from 0 to DTEND, and the following various performance data DA represented by the data format shown in FIG.
TA and other performance data related to timbre, volume, effects, etc.
Memorize the data. In the following, suffix H
Represents hexadecimal notation, and X represents that it can take any value.

Key-on data: Identification code "9X" in the first byte
_H '", the most significant bit MSB of the second and third bytes is 0, and the lower 7
Bits are key code KC and touch data
It is KT.

Key-off data: Identification code "8X" in the first byte
_H '", the most significant bit MSB of the second and third bytes is 0, and the lower 7
Bits are key code KC and key release touch data respectively
It is KT.

Time data: Identification code "F2 _H " in the first byte
, The most significant bit MSB of the second byte is “0”, and the lower 7 bits are the time value TIME.

Long-term data: Identification code "F" in the first byte
It consists of 3 bytes of data including "3 _H ", the most significant bit MSB of the 2nd and 3rd bytes is "0", and the lower 7 bits are the upper part of the time value TIME represented by 14 bits. And the lower 7 bits.

Is one byte of data consisting only of songs start data ... identification code "F0 _H".

Is one byte of data consisting of a non-operational data ... identification code "F9 _H" only.

Song end data: 1-byte data consisting only of the identification code “FF _H ”.

In such a case, a normal RAM may be used as the working memory 43 and the performance data memory 50, but it goes without saying that a battery-backed RAM or a non-volatile RAM may be used.

Next, the operation of the automatic musical instrument constructed as above will be described. When the power switch is turned on, the CPU 41 starts executing the "main program" in step 100 of FIG. 2, and controls the display device 18 in cooperation with the display control circuit 10b in step 101 to display the display. The display state of the instrument 18 is initialized to "---" and the working memory 43
The various variable data in the above are initially set to "0", and thereafter, the cyclic processing including steps 102 to 110 is continuously executed. In this circulation process, in each of steps 102 to 108, each operator 11 to
The process according to the operation of 15 is executed and the step
At 109, arrival of performance data to the MIDI receiver 32 is detected. In step 110, the oscillation frequency of the tempo oscillator 31 is controlled according to the operation position of the tempo operator 17, and the tempo data TMP is set to a value according to the operation position. During the circulation processing, when the tempo clock signal is output from the tempo oscillator 31, the CPU 41 executes the “ten pointer interrupt program”.

Hereinafter, the processing operation according to the operation of each of the operators 11 to 16 will be described. For convenience of explanation, (1) performance recording operation,
(2) Performance playback operation, (3) fast forward operation, and (4) backward movement operation will be described separately. As shown in FIG. 16, the basic state of the automatic musical instrument is the stop mode, and the mode data MODE is set to "0" by the processing of step 101 (FIG. 2). In step 2, even if the “ten pointer interrupt program” (FIG. 3) is executed due to the arrival of the tempo clock signal, it is determined to be “YES” in step 201, and the substantial process is not executed and the “ten pointer interrupt program” is executed in step 202. Ten Pointer Rupto Program "
Execution is terminated.

(1) Performance recording operation Recording operator in the stop mode
When 15 is operated, the CPU 41, which is executing the circulation process including steps 102 to 110 (FIG. 2), returns “YES” in step 104.
That is, it is determined that the recording operator 15 has an on-event, and the "recording operator on-event routine" is executed in step 104a.
(FIG. 6) is executed. In this "recording operator on-event routine", its execution is started in step 360, and it is determined to be "YES" based on the mode data MODE set to "0" in step 361.
Mode data MODE is set to "4" in step 36.
At 3 the display control circuit 10b is controlled so that "00" is displayed on the display 18, and at step 364 the execution of the routine is terminated. As a result, the automatic musical instrument is set to the record standby mode as shown in FIG. If the mode of the automatic musical instrument is other than the stop mode (mode data MODE = 0), even if the recording operator 15 is operated, the automatic musical instrument is judged to be “NO” in step 361. It does not change to record waiting mode.

As shown in FIG. 16, the record standby mode is changed to the record mode by the arrival of performance data (key-on data by the keyboard or the like) to the start operator 11 or the MIDI receiver 32.

That is, when the start operator 11 is operated, the CPU 4 that is executing the circulation process including steps 102 to 110 (FIG. 2).
1 is “YES” in step 102, that is, the start operator 11
It is determined that there is an on-event of the above, and the "start operator on-event routine" (FIG. 4) is executed in step 102a. In this "start operator on-event routine", the execution thereof is started in step 300, the processing of steps 302 to 304 is executed by the determination processing of step 301, and the execution of the routine is ended in step 305. In such a case, the CPU 41 sets the automatic performance device to the record mode by setting the mode data MODE to "3" in step 302, and sets the pointer PNT (= 0 in the performance data memory 50 in step 303). ) Write the song start data "FO _H " as performance data DATA (PNT) to the address specified by
Advance PNT by "1". In this state, when the tempo clock signal is output from the tempo oscillator 31 and the “tempo clock interrupt program” (FIG. 3) is executed, the mode data MODE is set to “3” as described above, In steps 201, 203, and 204, all
It is determined to be "O", and after step 205 (details will be described later).
Is executed and the tempo clock TCL is incremented by "1" each time the program is executed.

Further, when performance data arrives at the MIDI receiver 32, the CPU 4 which is executing the circulation process including steps 102 to 110 (FIG. 2).
In step 109, 1 is "YES", that is, it is determined that MIDI input is present, and the required number (1 to 3) of input data DT1 of the performance data input to the MIDI receiver 32 in step 109a is determined according to the identification code. , DT2, DT3, import, step 109
At "b", execute the "event data input routine" (Fig. 11). In this "event data input routine", its execution is started in step 600
At 1,602, a judgment is made based on the mode data MODE.
In this case, if the automatic performance device is in the record standby state as described above and the mode data MODE is still "4", "NO" in step 601 and "YES" in step 602.
If it is determined, in steps 603-605, the above-mentioned step 302
~ 304 (Fig. 4), mode data MODE is "3"
Is set to the pointer PNT (= in the performance data memory 50
Performance data DATA (PN
As T), the song start data “F0 _H ” is bought and the pointer PNT is advanced by “1”. As a result, even when performance data arrives at the MIDI receiver 32 when the automatic performance device is in the record standby state, the performance data memory for the performance data is stored in the same manner as in the case where the start operator 11 is operated. At the same time as the purchase to 50 is prepared, the tempo clock TCL starts to advance.

In this way, when performance data arrives in the record standby mode, the “event data input routine” (No. 11)
If new performance data arrives after the processing of steps 601 to 605 in FIG. 6) or after the mode is changed to the record mode by the operation of the start operator 11 or the arrival of the performance data, YES in step 601. That is, after determining that the mode data MODE is "3", the CPU 41 writes the performance data and the time data arrived by the processing in step 606 and the subsequent steps into the performance data memory 50. In the "event data input routine", if the mode data MODE is not "3" or "4", step 601,
As a result of the determination of “NO” in 602, the execution of the routine is ended in step 607 without substantially performing the processing of the routine.

In step 606, the tempo clock TCL that increases by "1" each time the "tempo clock interrupt program" is executed is "7F _H " or less, that is, the same clock TCL.
Is determined by 7 bits. In this case, if the tempo clock TCL is equal to or lower than "7F _H ", the performance data memory 50 is played at the address designated by the pointers PNT, PNT + 1 in the step 608 based on the judgment of "YES" in the step 606. Data DATA (PNT), DATA (PN
T + 1) time identification data "F2 _H ", tempo clock
Each TCL is written, and pointer PN is written in step 609.
T can be advanced by "2". If the tempo clock TCL is larger than “7F _H ”, based on the determination of “NO” in step 606, the time data TM1 and TM2 are set in the upper 7 bits and lower 7 bits of the tempo clock TCL in step 610, respectively. After being set, in step 611, the performance data DATA (PNT), DATA (PNT + 1), DA is stored in the performance data memory 50 at the address designated by the pointers PNT, PNT + 1, PNT + 2.
The long-term identification data “F3 _H ” and the tempo clock TCL represented by the time data TM1 and TM2 are respectively written as TA (PNT + 2), and the pointer PNT is set to “3” at step 612.
Can only be advanced.

After the processing of steps 609 and 612, the CPU 41 executes step 613.
After updating the same clock number NTM by adding the tempo clock TCL to the current tempo clock number NTM at step 614, the tempo clock TCL is initialized to "0" at step 614 and a "data write routine" is performed at step 615. Execute (Fig. 14). In such a "data writing routine", the performance data DT1, DT2, DT3 input by the processing of the above step 109a (Fig. 2) are written in the performance data memory 50, but the CPU 41 starts execution in step 800 and then executes step 801. The input performance data DT1, DT2, DT
Determine the 3 types. In such a case, the input performance data DT1, D
T2 and DT3 are usually key-on data, key-off data or other performance data regarding tone color, volume, etc.
If DT1, DT2, DT3 are the key-on data or the key-off data, based on the determination of "YES" in step 801, that is, the input performance data DT1 is "9X _H " or "8X _H ",
At step 804, the pointers PNT, P in the performance data memory 50
Performance data D at the address specified by NT + 1 and PNT + 2
Input performance data DT1, DT2, DT3 are respectively written as ATA (PNT), DATA (PNT + 1), DATA (PNT + 2), the pointer PNT is advanced by "3" in step 805, and the "data The execution of the "writing routine" is completed. Further, the data DT1, DT2, DT3 timbre, if other data such as volume, "NO", i.e. the input performance data DT1 is at step 801 to 803 "9X _H", "8
Based on the determination that it is not X _H ”,“ F 9 _H ”, or“ FF _H ”, in step 807 the pointers PNT, PNT + 1 in the performance data memory 50,
Performance data DATA (P
Input performance data DT1, DT2, and DT3 are written as NT), DATA (PNT + 1), and DATA (PNT + 2), respectively, and the pointer PNT is advanced by "3", and the "data writing routine" is executed in step 806. Will be terminated. In addition,
In this case, if the other performance data is 1 byte or 2 bytes instead of 3 bytes, the performance data to be written is 1 or 2 and the step of the pointer PNT is also "1" or "2". Is.

In this way, each time performance data arrives at the MIDI receiver 32, the "event data input program" (Fig. 11) is executed, and the performance data memory 50 displays the tempo clock TCL along with the interval between the performance data. It is sequentially stored as data.

On the other hand, while writing the performance data, the tempo oscillator 31
Each time the tempo clock signal is generated by
"Tempo clock interrupt program" (Fig. 3)
Is executed, and after the processing of steps 201, 203, and 204, step 2
At 05, the tempo clock TCL increases by "1". In the normal case, since the performance data arrives at the MIDI receiver 32 and the tempo clock TCL is initialized to "0" by the processing of step 614 (FIG. 11), 2 bytes (strictly speaking, The same clock TCL consisting of 14 bits does not overflow, and “NO”, that is, the tempo clock TCL is 14 at step 206 after the processing of step 205.
It is determined that it is not "4000 _H " or more corresponding to the bit, and the execution of the "tempo clock interrupt program" is ended in step 202.

However, if no performance data arrives at the MIDI receiver 32 for a long time, the tempo clock TCL increases and the
When it becomes “0 _H ”, it is determined as “YES” in the above step 206, and the program proceeds to step 207 and thereafter. In such a case, the CPU 41 sets the tempo clock TCL to 1 in step 207.
Set to “3FFF _H ” corresponding to the maximum value that can be expressed by 4 bits, and in step 208, determine “YES” based on the mode data MODE set in “3” (record mode), and in step 209. set the input data DT1 to "F9 _H" (inactive data) and executes the "event data input routine" (Fig. 11) at step 210.

In such a case, the mode data MODE is “3” and the tempo clock TCL is larger than “7F _H ” (the maximum value that can be represented by 7 bits), so the CPU 41 causes the steps 41 0 to 61 4 described above.
Processing (writing tempo clock TCL as performance data, updating the current tempo clock number NTM, and tempo clock T
After CL is initialized to "0", the "data write routine" (FIG. 14) is executed in step 615. in this case,
Input data D by the processing of step 209 (FIG. 3) above
Since T1 is set to "F9 _H", after the determination of "NO" in step 801, is determined to be "YES" in step 802, the pointer P in the performance data memory 50 at step 808
Performance data DATA (PNT) at the address specified by NT
Together with the input performance data DT1 or "F9 _H" is written as, with the pointer PNT is advanced by "1" at step 809, execution of the "data writing routine" is terminated in step 806. As a result, performance data memory
At 50, the maximum value of the tempo clock TCL is written together with the identification code, and at the same time, non-operation data is written. As a result, the time data that cannot be expressed in 14 bits is substantially extended.

After the processing of step 210 (FIG. 3), the CPU 41 initializes the tempo clock TCL to “0” in step 211,
In step 202, the execution of the "tempo clock interrupt program" is completed. If the automatic performance device is set to the record standby mode (mode data MODE = 4), even if the execution of the "tempo clock interrupt program" is started by the arrival of the tempo clock signal, the process proceeds to step 201. Since it is determined to be “NO”, the execution of the program is ended in step 202 without performing substantial processing.

Next, the display 18 during the writing of such performance data
The display operation of will be described. During execution of the "event data input routine" (Fig. 11), the CPU 41 executes step 616.
, Pointer PNT value being updated and performance data memory 50
Final address value DTEND (capacity of performance data memory 50)
Based on the above, the calculation of the following Expression 1 is executed. In addition, the following formula 1
In, the function INT (x) means the integer part of x.

DSP = INT {(1-PNT / DTEND) * 100} ... Equation 1 As a result, the display data DSP represents the remaining amount of the performance data memory 50 in percentage. After the processing of step 616, it is determined whether the pointer PNT value has reached the final address DTEND. In this case, if the pointer PNT value has not reached the final address value DTEND yet, the CPU 41 determines “NO” in step 617, and controls the table in cooperation with the display control circuit 10b in step 618. Then, the display 18 displays the value corresponding to the display data DSP. As a result, in the record mode and record standby mode (mode data MODE = “3”, “4”), the display 18 displays the remaining amount corresponding to the number of addresses of the performance data memory 50. .

Next, a case where the writing of the performance data is stopped will be described. When the stop operator 12 is operated while writing such performance data (mode data MODE = 3),
The CPU 41, which is executing the circulation process including steps 102 to 110 (FIG. 2), determines “YES” in step 103, that is, that the stop operator 12 has an on-event, and in step 103a, the “stop operator on-event routine”. ”(FIG. 5). In this "stop operator on event routine", its execution is started in step 330, and "YES" in step 331, that is, the mode data MODE
Is determined to be "3", after the input data DT1 at step 332 is set to "FF _H" (song end data), "the event data input routine" is executed at step 333. Such "event data input routine" (11th
In the figure), the writing of the tempo clock TCL into the performance data memory 50 and the display control are executed by the same processing as described above, and the "data writing routine" (FIG. 14) is executed in step 615. . In this case, since the input data DT1 is set to “FF _H ”, in the “data write routine”, based on the determination of “NO” in steps 801, 802 and the determination of “YES” in step 803, At 810, the performance data DAT is stored in the performance data memory 50 at the address designated by the pointer PNT.
The input performance data DT1 as A (PNT), that is, "FF _H "
(Song end data) is written and step 81
At 1, the total tempo clock count TTM is the current tempo clock count NTM
Is set, and the execution of the "data writing routine" is ended in step 806. As a result, the performance data memory 50 stores data representing the end of a song, and also stores a value representing the length of the song as the total tempo clock number TTM in the amount corresponding to the tempo clock number, that is, the playing time. It

After the processing of the above step 333 (FIG. 5), the CPU 41 sets the mode data MODE to “0” in step 334, and the table state becomes “−−” in step 335 in cooperation with the display control circuit 10b. The display 18 is controlled so that the all-off data is output to the MIDI transmitter 33 in step 336. The output of this all-off data is forcibly stopping the generation of the musical tone signal in the electronic musical instrument and the tone generator connected to the MIDI transmitter 33, and is not necessary in the writing process of the musical performance data, but it will be described later. It is necessary for reading and outputting performance data. After the processing of step 336, the CPU 41 initializes the pointer PNT, the current tempo clock number NTM and the tempo clock TCL to "0" in steps 337 to 339, and in step 340, the "stop operator on-event routine". Ends the execution of. By executing the "stop operator on-event routine" as described above, the automatic musical instrument set to the record mode (mode data MODE = 3) has the stop mode (basic state) as shown in FIG. Mode data MODE =
Changed to 0).

The "stop operator on-event routine" is executed even when the stop operator 12 is operated while the automatic musical instrument is in the record standby mode (mode data MODE = 4). In this case, since the mode data MODE is set to "4", the CPU 41 determines "NO" in step 331 and "YES" in step 341, and then, in step 342, sets the input data DT1 to the song end data. It is set to "FF _H " and the "data write routine" (FIG. 14) is executed at step 343. In the "data writing routine", the performance data memory 50 is set in step 810, as in the case where the stop operator 12 is operated in the above-described record mode (mode data MODE = 3).
The song end data “FF _H ” is written in and the total tempo clock number TTM is the tempo clock number in step 811.
Set to NTM. After the processing of step 343 (FIG. 5), the CPU 41 executes the processing of steps 334 to 339 similar to the above case, and ends the execution of the "stop operator on event routine" in step 340. As a result, even in such a case, the automatic musical instrument is changed to the stop mode (mode data MODE = 0) as the basic state.

Meanwhile, writing performance data (mode data MODE =
3) If the performance data memory 50 becomes full without the stop operator 12 being operated for a long time, the CPU 41 executes "YES" at step 617 during execution of the "event data input routine" (FIG. 11) described above. That is, it is determined that the pointer PNT value is equal to the final address value DTEND of the performance data memory 50, and after the processing of steps 619 to 624, the execution of the "event data input routine" is ended in step 607. In the processing of steps 619 to 624, step 619
Mode data MODE is set to "0" in step 62.
At 0, the display state of the display 18 is controlled to "---", and at step 621 the performance data DATA (P
The song end data “FF _H ” is written as NT), the pointer PNT is initialized to “0” in step 622, and the total tempo clock number TTM is the current tempo clock number in step 623.
Set to NTM, and the current tempo clock number NT in step 624
M is initialized to "0". As a result, as in the case described above, the automatic musical instrument is changed to the stop mode (mode data MODE = 0) as the basic state.

Further, in the automatic playing device, when the start operator 11 is operated in the record mode (mode data MODE = 3), the record mode is set to the record standby mode (as shown in FIG. 16). Mode data MODE =
It is changed to 4). That is, when the start operator 11 is operated, as in the case described above, the CPU 41 executing the "main program" starts executing the "start operator on-event routine" (FIG. 4) at step 300. After executing the processing of step 306 by the determination processing of step 301,
At step 305, the execution of the "step operator on event routine" is completed. In this case, the mode data MODE is set to "4" in step 306, and the automatic musical instrument is changed to the record standby mode described above. The operation after changing the mode is as described above. As a result, in such a case, the start operator 11 functions as a pause (pause) operator.

(2) Performance playback operation When the start operator 11 is operated while the automatic performance device is in the above-mentioned stop mode as the basic state, the circulation process consisting of steps 102 to 110 (Fig. 2) is being executed. In step 102, the CPU 41 determines “YES”, that is, the start operator 11 has an on-event, and proceeds to step 10
2a "Start operator on event routine" (4th
(Figure). In this "start operator on-event routine", its execution is started in step 300, and the determination processing of step 301 executes the processing of step 307 and thereafter based on the mode data MODE set to "0". R. In this case, the mode data MODE is set to "1" in step 307, the display control circuit 10b is controlled in step 308 so that "00" is displayed on the display 18, and the display control circuit 10b is operated in step 305. The execution of the "start operator on-event routine" is ended. This allows
The automatic musical instrument is set to the play mode as shown in FIG.

In this state, when the tempo oscillator 31 generates a tempo clock signal, the CPU 41 starts executing the “tempo clock interrupt program” (FIG. 3) at step 200, and the mode data MODE set to “1” is set. Based on the above, it is determined to be “NO” in step 201, “YES” in step 203, and sub mode data MO in step 212.
It is determined whether DE is "0", "3", or "4". In this case, since the sub mode of the automatic musical instrument is set to the normal mode and the sub mode data MODE is "0", the "YE
It is determined to be "S", and the "count up routine" (FIG. 12) is executed in step 213.

In the execution of the "count-up routine", the execution is started in step 700,
At, it is determined whether the tempo clock TCL is equal to the time data DUR. In this case, if the two data are not equal, it is determined as "NO" in step 701, and step 702
Then, the execution of the "count-up routine" is finished. After executing this "count up routine", CPU41
Returns to the execution of the "tempo clock interrupt program" (FIG. 3), and the tempo clock TCL is sequentially increased by "1" by the processing of step 205.

During the counting operation of the tempo clock TCL, if the clock TCL and the time data DUR become equal, the CPU 41
Is determined to be "YES" in the above step 701 (FIG. 12), and in step 703 the performance data DATA (PNT) stored at the address in the performance data memory 50 designated by the pointer PNT is headed. It is read as data CD (identification data), and in steps 704 to 708 it is determined what kind of data the performance data following the head data CD is.

In this case, if the head data CD is identification data “9X _H ” and “8X _H ” related to key-on data or key-off data, the mode data MODE is “1” and the sub-mode data MODE is “0”. , Based on the determination of "YES" in step 704 and the determination of "YES" in step 709, the performance data memory designated by the start data CD and the pointers PNT + 1, PNT + 2 in step 710.
Performance data DATA (PNT + 1), DATA (PN
T + 1), that is, key code KC and key touch data KT
(See FIG. 15) are output to the MIDI transmitter 33. As a result, the MIDI transmitter 33 sends the data CD, DATA (PNT + 1), DATA to the electronic musical instrument, sound source device, etc. connected to the transmitter 33.
Since (PNT + 2) is output, a musical tone signal formed in accordance with the key code KC and the key touch data KT is output from the electronic musical instrument, the sound source device, or the like. After the processing of step 710, the CPU 41 sets the pointer PNT to “3” in step 711.
Only, and the program returns to step 703.

If the start data CD set by the process of step 703 is identification data “F0 _H ” or “F9 _H ” related to the song start data or non-motion data, “N
Based on the determination of "O" and the determination of "NO" in step 705, the pointer PNT is advanced by "1" in step 12, and the program is returned to step 703. Further, if the head data CD set by the process of step 703 is identification data relating to other data such as tone color and volume, based on the determination of “NO” in steps 704 to 708,
In step 713, the tone color, other data such as volume is output to the MIDI transmitter 33 together with the head data CD, and the pointer PNT is advanced by the number of bytes of the output data,
The program returns to step 703. As a result, the tone color, volume, etc. of the musical tone signal formed by the above-described electronic musical instrument, sound source device, etc. are controlled.

On the other hand, during the circulation processing according to steps 703 to 713 associated with the reading of the key-on data, the key-off data, the song start data, the non-motion data, and the other data, step 70
When the first data CD set by the process of 3 becomes the identification data “F2 _H ” for time data, steps 704, 705
“NO” in step 706 and “YE in step 706.
Based on the determination of “S”, the processes of steps 714 to 716 are executed. In the processing of steps 714 to 716, the time data DUR is designated by the pointer PNT + 1 at step 714 and the performance data read from the performance data memory 50.
The DATA (PNT + 1) value is set, the pointer PNT is advanced by "2" in step 715, and the tempo clock TCL is initialized to "0" in step 716.

If the set head data CD is identification data “F3 _H ” for long-term data, steps 704 to 706.
“NO” in step 707 and “YE
Based on the determination of "S", the time data DUR is designated by the pointers PNT + 1, PNT + 2 in step 717 and the performance data DATA (PNT + 1), DATA read from the performance data memory 50 is read.
It is set to the calculated value of the following Expression 2 based on (PNT + 1).

DUR = DATA (PNT + 1) * 80 H + DATA (PNT + 2) ......
Formula 2 Formula 2 above converts 2-byte data consisting of 7 bits into 14-bit data.
The multiplication of “80 _H ” means carry of 7 bits of DATA (PNT + 1). After the processing of step 717, the pointer PNT is advanced by "3" in step 718, and the tempo clock TCL is initialized to "0" in step 719.

As a result, the time data DUR is set and the tempo clock TCL is initialized to "0" by the processing of steps 714 to 719, and the next performance data DATA (PNT) is set.
Is read out. Then, the tempo clock TCL is generated by executing the "tempo clock interrupt program" accompanying the generation of the tempo clock signal from the tempo oscillator 31.
Is increased and the clock TCL becomes equal to the newly set time data DUR value, key-on data, key-off data, song start data in steps 703 to 713 described above,
The generation of the tone signal is controlled according to the reading of non-operation data and other data.

In step 701, based on the determination of “YES”, that is, the time data DUR and the tempo clock TCL are equal,
The non-motion data "F9 _H " is read as performance data,
When the program is returned to step 703 by the processing of steps 705 and 706, the performance data is read again, the time data DUR is reset by the processing of steps 714 and 717, and the tempo clock TCL is set to "0" at steps 716 and 719. Initialized. As a result, the counting operation of the tempo clock TCL is performed again, and
Since the determination processing of step 701 is performed, the time interval between the performance event data regarding key-on, key-off, etc. is long as described above, and the processing of step 808 (FIG. 14) is performed as described in the performance recording operation. inactive data "F9 _H" is when stored in the performance data memory 50 is not made generation control of the musical tone, the count operation of the tempo clock TCL over a long period of time is substantially made by.

Next, the display operation of the display unit 18 during the performance reproducing operation will be described. After processing the above steps 716 and 719, C
PU41 takes time data DUR by adding the time data DUR to the current tempo clock number NTM in step 720.
The current tempo clock number NTM is accumulated each time
In step 21, the display data D
Set SP. In the following formula 3, the function INT
(X) means the integer part of x.

DSP = INT (NTM * 100 / TTM) ・ ・ ・ Equation 3 As a result, the display data DSP represents the progress position corresponding to the playing time in percentage. After the processing of step 721, the CPU 41 controls the display device 18 in step 722 so that the value corresponding to the display data DSP is displayed in cooperation with the display control circuit 10b, and in step 702, the “count-up” is performed. The execution of the "routine" is terminated, whereby the progress of the automatic performance is visually displayed as a percentage of the total length of the music.

On the other hand, during the reproduction of the automatic performance, when time elapses and the song end data “FF _H ” is read from the performance data memory 50 in step 703 and the data is set as the leading data CD, step 704 Based on the determination of "NO" in step 707 and the determination of "YES" in step 708,
In step 723, all-off data is output to the MIDI transmitter 33. As a result, similarly to the above case, the generation of the tone signal is forcibly stopped. After the process of step 723, the mode data MODE is set to "2" by the process of step 724, and the tempo clock TCL, the time data DUR, the pointer PNT and the current tempo clock number NTM are "0" by the processes of steps 725 to 728. Is initially set to, and in step 702, the execution of the "count up routine" is completed. As a result, the automatic performance device set in the play mode is changed to the play standby mode as shown in FIG. 16, and the variable data for reading the performance data such as the pointer PNT is set to the initial value. Is set.

In addition, play mode (mode data MODE
= 1), if the start operator 11 is operated before all the performance data in the performance data memory 50 is read out, the "start operator on event" is performed by the processing of steps 102 and 102a (FIG. 2). Routine ”(FIG. 4) is executed. In this case, since the mode data MODE is set to "1", in the "start operator on-event routine", the program is determined by the determination processing in step 301 after the start of the execution of the routine in step 300, and the program proceeds to step 309. And the mode data MODE is set to "2" at the same step 309, and step 310
At, all-off data is output to the MIDI transmitter 33 to stop the generation of the tone signal, and at step 305, the execution of the routine is ended. As a result, the automatic performance device set in the play mode is changed to the play standby mode during the reading of the performance data, as shown in FIG.
In this way, the start operator 11 also functions as a temporary (pause) operator, as in the record mode.

In the play standby mode changed as described above, since the mode data MODE is set to "2" and is set to "0" before the sub mode data MODE, the tempo clock signal is output from the tempo oscillator 31. Even if it is output and the "tempo clock interrupt program" (Fig. 3) is executed as described above, it is determined to be "NO" in steps 201 and 203, "YES" in steps 204, and "NO" in steps 214 and 215. Then, in step 202, the execution of the routine ends. As a result, no substantial processing is performed in the "tempo clock interrupt program", and the generation of the tone signal is not controlled.

Next, the play standby mode (mode data MODE =
In 2), when the start operator 11 is operated, the "start operator on-event routine" (Fig. 4) is executed by the processing of steps 102 and 102a (Fig. 2). In this case, since the mode data MODE is set to "2", in the "start operator on-event routine", the program proceeds to step 311 by the determination processing in step 301 after the execution of the routine in step 300 is started. The mode data MODE is set to "1" at step 311, and the execution of the routine is ended at step 305. As a result, the automatic performance device that has been set to the play standby mode is changed to the play mode and the stopped reading of the performance data is resumed, as shown in FIG.

Furthermore, the above play mode (mode data MODE = 1)
Alternatively, when the stop operator 12 is operated in the play standby mode (mode data MODE = 2), the above step 10 is performed.
The "stop operator on-event routine" (Fig. 5) is executed by the processing of 3,103a (Fig. 2). In this case, since the mode data MODE is set to "1" or "2", the CPU 41 sets "N" at steps 331 and 341, respectively.
After determining "O", the mode data MODE is set to "0" in step 334, and the display device 18 is set in step 335 so that the display state becomes "-" in cooperation with the display control circuit 10b. In step 336, all-off data is output to the MIDI transmitter 33 to forcibly stop the generation of the musical tone signal in the electronic musical instrument and tone generator connected to the MIDI transmitter 33, and in steps 337 to 339, the pointer is controlled. PNT, current tempo clock number N
TM and the tempo clock TCL are initialized to "0", and the execution of the "stop operator on event routine" is ended in step 340. By executing such a "stop operator on-event routine", the automatic musical instrument that has been set to the play mode or the play standby mode has, as shown in FIG. 16, a stop mode (mode data MODE = 0).

(3) Fast-forward operation Next, the fast-forward operation will be described. The fast-forward operation advances the pointer PNT at a speed higher than the normal performance playback speed in response to the operation of the fast-forward operator 13. This is valid only when (mode data MODE = 0), play mode (mode data MODE = 1) and play standby mode (mode data MODE = 2) are set.

When the fast-forward operator 13 is pressed, the CPU 41 executing the "main program" (Fig. 2) determines "YES" at step 105, that is, the on-event of the fast-forward operator 13 occurs, and proceeds to step 105a. Then, the "fast-forward operator on-event routine" (FIG. 7) is executed. In such a case, the "fast-forward operator on-event routine" executes step 400.
At step 401, it is judged whether the mode data MODE is "2" or less.
If MODE is larger than “2”, “NO” in step 401.
If it is determined that the routine is completed in step 402 and the data MODE is “2” or less, the same step 40
It is determined to be "YES" in 1 and the processes of step 403 and thereafter are executed. As a result, when the automatic musical instrument is in the record mode or the record standby mode, the fast-forwarding operation is invalidated, and the fast-forwarding mode is valid only in the stop mode, the play mode and the play standby mode.

First, a case where the fast-forward operator 13 and the function operator 16 are not operated at the same time will be described. In such a case, after the determination of “YES” in step 401 above, the CP
U41 determines "NO" in step 403, and sets submode data MODE to "3" in step 404. As a result, the sub mode of the automatic musical instrument is set to the fast-forward mode in which the pointer PNT is sequentially fast-forwarded. Step
After processing 404, in step 405 mode data MODE “1”
If the data MODE is “1”, it is determined to be “YES” in step 405 and step 40
At 6, the cycle of the tempo clock signal in the tempo oscillator 31 is set to T ₁ . Also, the mode data MODE is "1".
If not, it is determined to be “NO” in step 404 and the cycle is set to T ₂ in step 407. In such cases, T
₁ is, for example, a value of about 10 milliseconds, T ₂ is, for example, a value of about 5 milliseconds, and these T ₁ and T ₂ are a fraction of the period of the tempo clock signal during normal performance.
Approximately one tenth, that is, the speed of automatic performance tempo. In addition, the tempo when the data MODE is other than “1”, that is, “0” or “2” is faster than when the mode data MODE is “1”.
This is because the generation of the musical tone signal is permitted when the mode data MODE is "1" and the generation of the musical tone signal is prohibited by the processing described later.

Next, the CPU 41 determines in step 408 whether or not the mode data MODE is “0”, and if the data MODE is “0”, changes the mode data MODE to “2” in step 409 and In step 410, the display state of the display 18 is controlled to "00" and the program proceeds to step 411. If the data MODE is not "0", the program is directly stepped.
Continue to 411. The processing of steps 408 to 410 is the 16th
As shown in the figure, when the fast forward operator 13 is operated while the automatic musical instrument is set to the stop mode (mode data MODE = 0), the stop mode is set to the play standby mode (mode data MODE = When it is changed to 2) and the other play mode and play standby mode are set, it means that both modes are not changed. After such processing, the CPU 41 outputs all-off data to the MIDI transmitter 33 in step 411, so that if there is a musical tone signal that has been generated before, the generation of the musical tone signal is stopped, and in step 402 the “ The execution of the "fast-forward operator on-event routine" ends.

In such a state, the tempo oscillator 31 generates a tempo clock signal at a higher speed than usual, and the "tempo clock interrupt program" (FIG. 3) is executed each time the tempo clock signal is generated. In executing the "tempo clock interrupt program", the mode data MODE is set to "1" or "2" and the sub mode data MODE is "3".
Is set to "NO" in step 201, "YES" in steps 203 and 212, and the "count-up routine" (FIG. 12) is executed in step 213, or steps 201 and 203 are executed. At "NO", step 20
It is determined to be "YES" at 4,214, and the "count-up routine" is executed at step 216. By executing the "count-up routine", the performance data is read, the stepping of the pointer PNT and the progress position of the automatic performance are displayed as in the case described above.
If it is "2", the musical tone signal is not generated because the performance data output process to the MIDI transmitter 33 in step 710 is not performed by the determination process in step 709. After the processing of steps 213 and 216 (FIG. 3), the CPU 41 advances the tempo clock TCL by the processing of step 205 described above. Through such processing, the tempo clock TCL and the pointer PNT can be advanced at high speed as long as the fast-forward operator 13 is pressed.

On the other hand, when the pressing operation of the fast-forwarding operator 13 being released is released, the "fast-forwarding operator off event routine" (FIG. 8) is executed by the processing of steps 106 and 106a (FIG. 2).
Is executed. In the "fast-forward operator off-event routine", its execution is started in step 450, and it is determined in step 451 that the mode data MODE is "2" or less. MODE is set to “0”, and in step 453, the cycle of the tempo clock signal of the tempo oscillator 31 is the tempo data TMP.
That is, the value corresponding to the operation position of the tempo operator 17 is set by the processing of step 110 (FIG. 2) described above, and the execution of the routine is ended in step 454. As a result, the sub-mode of the automatic musical instrument is returned to normal and the reading speed of the musical performance data is also returned to the original.
Note that the determination processing in step 451 is performed in step 401
It corresponds to the determination process of FIG. 7 and is performed by the fast-forwarding operator 13 when the automatic musical instrument is set to the record mode (mode data MODE = 3) and the record standby mode (mode data MODE = 4). Even if is operated, the operation is invalidated.

Next, a case where the function operator 16 is operated simultaneously with the pressing operation of the fast-forward operator 13 will be described. In such a case, "YES" in step 403 of the "fast-forward operator on-event routine" (FIG. 7) similar to the above with the operation of the fast-forward operator 13, that is, the fast-forward operator 13 and the function operator 16 Is determined to be in the simultaneous pressing operation, and the sub mode data MODE is “4” in step 412.
Is set to As a result, the sub-mode of the automatic performance device is set to the jump mode in which the pointer PNT is jumped by a predetermined amount (up to about 10% at the performance progress position). After the processing of step 412, the CPU 41 executes the processing of steps 413 to 415 similar to the processing of steps 408 to 410, if the automatic musical instrument is previously set to the stop mode (mode data MODE = 0). Change the mode to the play standby mode (mode data MODE = 2), and if the other play mode and play standby mode are set, do not change both modes (see FIG. 16), By controlling the display state of the display device 18 to "00" and outputting all-off data to the MIDI transmitter 33 in step 416, if there is a musical tone signal that has been generated before, the generation of the musical tone signal is stopped. .

Next, the CPU 41 determines in step 417 the current tempo clock number NT.
The jump data PC10 is set by executing the calculation of the following formula 4 based on M and the total tempo clock number TTM. In Expression 4, the function INT (x) means the integer part of x.

PC10 = INT (NTM * 10 / TTM) * 10 + 10 ... Expression 4 In Expression 4, the display of the progress position of the song expressed in percentage by the operation of INT (NTM * 10 / TTM) * 10. Data DSP = INT (NTM * 010 / TTM) The first digit is truncated and "10" is added to the truncated data, so the jump data PC10 is the current tempo clock number NTM.
At a maximum of 10% ahead of the advance position corresponding to, for example, if the advance position is 24%, it means an advance position of 30%.

After the processing of step 417, the CPU 41 executes the "count-up routine" (FIG. 12) at step 418 and advances the tempo clock TCL at step 419, based on the determination processing DSP ≧ PC10 at step 420,
The cyclic process including steps 418 to 420 is executed until the display data DSP becomes the jump data PC10 or more. In the execution of the "count up routine", as in the above case, the performance data is read and the stepping of the pointer PNT and the progress position of the automatic performance are displayed.
Since MODE is set to "4", step 709 (first
(Fig. 2) The MIDI transmitter in step 710
The performance data is not output to 33, and no tone signal is generated in this case either.

Stepping operation of such tempo clock TCL and display data D
By updating SP, the display data DSP is jump data PC1.
When it becomes 0 or more, it is determined to be "YES" in step 420 (Fig. 7), and the execution of the "fast-forward operator on-event routine" is ended in step 402. As a result, the pointer PNT jumps forward to advance the advance position of the automatic performance by a predetermined amount at a rate corresponding to the length of the music.

In this state, when the pressing operation of the fast-forwarding operator 13 being pressed is released, the fast-forwarding operator 13 is operated without the function operator 16 being operated. The "operator off event routine" (FIG. 8) is executed to return the sub-mode of the automatic musical instrument to normal, and the performance data read speed is also restored.

On the other hand, when the fast-forwarding operator 13 is pressed simultaneously with the function operator 16 after releasing the pressing of the fast-forwarding operator 13, the "fast-forwarding operator on-event routine" (FIG. 7) is executed for each pressing operation. It is re-executed, and the progress position of the automatic performance is advanced by about 10%. Then, by repeating such an operation, the progress position of the automatic performance is advanced by 10%, so that it becomes easy to change to the desired progress position.

(4) Backward Operation Next, the backward operation will be described. The operation is to move the pointer PNT backward at a speed higher than the normal performance reproduction speed in response to the operation of the backward operation element 14. This is valid only when the mode (mode data MODE = 1) and the play standby mode (mode data MODE = 2) are set.

When the retreat operator 14 is pressed. The CPU 41 that is executing the "main program" determines "YES" in step 107, that is, that there is an on-event for the reverse manipulator 14, and executes the "reverse manipulator on-event routine" (FIG. 9) in step 107a. To do. In such a case, the execution of the "reverse operating element on event routine" is started in step 500, and it is determined in step 501 whether the mode data MODE is "1" or "2". If it is other than "1" or "2", it is determined to be "NO" in the same step 501, the execution of the routine is ended in step 502, and if the data MODE is "1" or "2", it is the same. In step 501, it is determined to be "YES", and the processing of step 503 and thereafter is executed. As a result, if the automatic musical instrument is in the stop mode, the record mode, or the record standby mode, the backward movement is invalidated, and the backward movement mode is valid only in the play mode and the play standby mode.

First, the reverse control 14 and the function control at the same time
It will be explained when 16 is not operated. In such a case, after the determination of "YES" in step 501 above, the CPU4
1 is tempo clock T from time data DUR in step 503
A value obtained by subtracting CL is newly set as the tempo clock TCL, and it is determined as "NO" in step 504, and the processing of step 505 and thereafter is executed. In such a case, the arithmetic expression TCL = DUR−TCL in step 503 is as follows:
The remaining portion of the time data DUR currently in progress is set as an initial value, and the “countdown routine” (the 13th
By executing the "Tempo clock interrupt program" (Fig. 3) including the process of Fig. 3), the tempo clock TCL previously set from the initial value is set to the tempo clock TC.
The L value is counted, and the tempo clock TCL that has already progressed
It has a meaning as preparation for moving backward the advance position by the minute.

In the processing after step 505 (FIG. 9), C
PU41 sets submode data MODE to "1" in step 505.
By setting the period of the tempo clock signal in the tempo oscillator 31 to T ₁ (for example, 5 milliseconds as above) in step 506, and outputting all-off data to the MIDI transmitter 33 in step 507. The generation of musical tones is prohibited, and the execution of the "reverse operating element on event routine" is ended in step 502. As a result, the sub mode of the automatic musical instrument is set to the backward mode in which the pointer PNT is sequentially moved backward, and the tempo clock signal is frequently generated from the tempo oscillator 31 because the backward movement is performed at high speed. .

When the tempo clock signal is generated, the "tempo clock interrupt program" (FIG. 3) is executed every time the tempo clock signal is generated. In executing the "tempo clock interrupt program", since the mode data MODE is set to "1" or "2" and the sub mode data MODE is set to "1", "NO" in step 201, In step 203, "YE
S ”, determined to be“ NO ”in step 212 and step 217
"Countdown routine" (Fig. 13) is executed at step 201, or "NO" at step 201, 203, step 204
“YES” in step 214, “NO” in step 214, “YES” in step 215, and the same “countdown routine” is executed in step 218. In executing the “countdown routine”, the execution is step 750.
Performance data DATA designated by the pointer PNT and read from the performance data memory 50 in step 751.
It is determined whether or not (PNT) is the song start data “FO _H ”. In this case, if the performance data DATA (PNT) is the song start data “FO _H ”, the CPU 41 returns “YES” in step 751.
Then, in step 752, the execution of the “countdown routine” is ended. By this process, the pointer PNT
After is returned to the beginning of the performance data, the backward movement of the pointer PNT is prohibited.

Also, the performance data DATA (PNT) is the song start data “F
If it is not "0 _H ", it is determined to be "NO" in Step 751.
The processing after step 753 is executed.

In this step 753, if the tempo clock TCL is not equal to the time data DUR yet, the CPU 41 proceeds to step 753.
Based on the judgment of "NO" in step 752, the execution of the "countdown routine" is ended in step 752, and the "tempo clock interrupt program" (FIG. 3).
Then, the processing returns to the execution of step 205 and the processing of step 205 and the subsequent steps of the program is executed. As a result, the tempo clock TCL is sequentially incremented by the process of step 205. By executing the "tempo clock interrupt program" including the execution of the "countdown routine" that is executed each time the tempo clock signal is generated, the tempo clock TCL advances and the clock TCL becomes equal to the time data DUR. , CP
The U41 determines "YES" in step 753 (Fig. 13), sets the variable i to the value PNT-1 obtained by subtracting "1" from the pointer PNT value in step 754, and repeats steps 755 to 758. By processing, the address value of the performance data memory 50 is moved backward to search for identification data concerning time data or long time data. In this case, performance data DAT from step 755
The determination process for determining whether or not the most significant bit MSB of A (i) is "1" is a determination process for searching for identification data, as is apparent from FIG.
As is clear from FIG. 15, the determination process of whether (i) is “F2 _H ” or “F3 _H ” is a determination process of searching for identification data for time data or long time data. Yes, and steps 757 and 758 are processing to move the address backward.

During the circulation process consisting of steps 755 to 758, if the identification data relating to the time data or the long time data is found, the COU 41 determines “YES” in step 756, and the circulation process consisting of steps 759 to 763 again causes While moving back the address value of the performance data memory 50, time data or identification data relating to long time data is searched. In such cases,
The process of step 759 corresponds to steps 757 and 758, the process of step 760 corresponds to step 755, and the step 761
The process of step 756 corresponds to the step 756, and the process of step 762 corresponds to the step 751. The process of step 763 advances one by one in the traveling direction of the music from the finally searched time data or long time data. This is for temporarily storing the address (forward address) as a variable ST. When the time data or the long time data is searched again while the address value of the performance data memory 50 is moved backward by the circulation processing, the CPU 41 determines "YES" in step 61, and determines the pointer PNT in step 765. Is stored by the processing of step 763 and set in the variable ST, and the program proceeds to step 766 and thereafter. By the processing of these steps 763 and 765, the pointer PNT is moved to the performance data memory 5 corresponding to the time data DUR related to the progress, as in the above-mentioned reading and reproduction of the performance data.
It is set to the storage address value of the time data within 0 or the data related to the performance event next to the long time data. Then, even during such a backward movement operation and during the reading and reproduction of the above-mentioned performance data, the pointer PNT is located next to the time data or the long-time data in the performance data memory 50 corresponding to the time data DUR in progress. Since it is set to the storage address value of the data related to the performance event, in order to search the time data or the identification data related to the long time data to find the time data which is one step backward from the time data currently being processed, the above steps 755- 758 and step 75
Two cycles of treatment, each consisting of 9 to 763, are required.

Also, during the circulation processing consisting of steps 759 to 763 above, the read performance data DATA (i) is the song start data “F
When it becomes "0 _H ", it is judged "YES" at step 762, the tempo clock TCL and the time data DUR are initialized to "0" at step 764, and the "countdown routine" is executed at step 752. Will be terminated. As a result, like the processing in step 751, the backward movement of the pointer PNT is prohibited after the pointer PNT is returned to the beginning of the performance data.

By the cyclic processing consisting of the above steps 759 to 763, the identification codes “F2 _H ” and “F
3 _H "is found and the pointer PNT is set in step 765, the CPU 41 determines in step 766 whether the identification code (performance data DATA (i)) is" F2 _H ". To do. In this case, if the identification data is “F2 _H ”, the time data DUR is changed to the variable (pointer) i + 1 in step 767 based on the determination of “YES” in step 766.
Is set to the performance data DATA (PNT + 1) value read from the performance data memory 50. If the identification data is “F3 _H ”, “NO” in the 766
In step 768, the time data DUR is specified by the variables (pointers) i + 1, i + 2, and the performance data memory 50
Performance data DATA (i + 1), DATA (i +
It is set to the calculated value of the following Expression 5 based on 1).

DUR = DATA (i + 1) * 80 H + DATA (i + 2) ··· Equation 5 Formula 5 is for converting the same manner as described above two equations, respectively the 2-byte data composed of 7 bits to 14 bits of data .

After the processing of the above steps 767 and 768, the CPU 41 causes the step 769.
In step 770, the tempo clock TCL is initialized to 0, and the preset tempo clock number NTM is subtracted from the current tempo clock number NTM to update the current tempo clock number NTM each time the time data DUR is updated. In step 771, the display data DSP is set by executing the calculation of the following equation 6 based on the updated current tempo clock number NTM and total tempo clock number TTM. The following expression 6 is the same as the above-mentioned expression 3, and the display data DSP represents the progress position corresponding to the playing time in percentage.

DSP = INT (NTM * 100 / TTM) ... Equation 6 Next, in step 772, the CPU 41 cooperates with the display control circuit 10b to display the display 18 so that the value corresponding to the display data DSP is displayed. The control is performed, and the execution of the "countdown routine" is ended in step 752. As a result, the progress of the automatic performance is visually displayed even during the backward movement.

In this way, the pointer PNT operates the backward operation element 14 by the "tempo clock interrupt program" including the "countdown routine" that is executed each time the tempo oscillator 31 generates the tempo clock signal (high-speed tempo clock signal). Retract at high speed as long as you stay.

On the other hand, when the pressing operation of the backward operation element 14 being pressed is released, the processing of steps 108 and 108a (FIG. 2) causes
The "reverse operator off event routine" (Fig. 10) is executed. In the "reverse control operator off event routine", its execution is started in step 550, and the CPU 41
Sets the sub mode data MODE to "0" in step 552 based on the judgment that the mode data MODE is "1" or "2" in step 551, and the tempo of the tempo oscillator 31 in step 553. The cycle of the clock signal is set to the tempo data TMP, that is, the value corresponding to the operation position of the tempo operator 17 by the processing of step 110 (FIG. 2) described above, and the current tempo clock is calculated from the time data DUR being processed in step 554. Value obtained by subtracting the TCL value (corresponding to the amount of backward movement) DUR-TC
By setting L as a new tempo clock TCL, the tempo clock TCL is changed to a value that represents the advance position in the forward direction, and in step 555, the execution of this routine ends. As a result, the sub-mode of the automatic musical instrument is returned to normal and the reading speed of the musical performance data is also returned to the original. The determination process of step 551 corresponds to the determination process of step 501 (FIG. 9), and the automatic performance device is in the stop mode (mode data).
MODE = 0), record mode (mode data MODE = 3)
Also, even if the retreat operator 14 is operated in a state where the record standby mode (mode data MODE = 4) is set, the operation is invalidated.

Next, the case where the function operator 16 is operated simultaneously with the pressing operation of the retreat operator 14 will be described. In such a case, the above-mentioned step 504 of the "reverse operating element on-event routine" similar to the above with the operation of the reverse operating element 14 is performed.
In FIG. 9, "YES", that is, it is determined that the backward operation element 14 and the function operation element 16 are being simultaneously pressed, and in step 508 the sub mode data MODE is set to "2". As a result, the sub-mode of the automatic performance device moves the pointer PNT to a predetermined amount (up to about 1 at the performance progress position).
(0%) is set in the jump backward mode in which the user jumps over and moves backward. After the processing of step 508, the CPU 41 outputs all-off data to the MIDI transmitter 33 in step 509 to stop the generation of the tone signal if there is a tone signal that has been generated before.

Next, in step 510, the CPU 41 sets the current tempo clock number NT.
The jump data PC10 is set by executing the calculation of the following formula 7 based on M and the total tempo clock number TTM. In the following formula 7, the function INX (x) means the integer part of x.

PC10 = INT {(NTM-1) * 10 / TTM)} * 10 ...
Formula 7 In such a formula, since the first digit of the percentage representing the progress position of the music which is retreated by one performance data from the current progress position is truncated, the jump data PC10 is the maximum from the progress position corresponding to the current tempo clock number NTM. Will represent the position where you have moved back 10%. For example, the value INT (NTM *
If 100 / TTM) is 25 percent, PC10 is set to 20 percent, and if the value INT (NTM * 100 / TTM) is exactly 30 percent, PC10 is set to 20 percent. After the processing in step 510, the CPU 41 executes the "countdown routine" (FIG. 13) in step 511 and step 51.
While stepping the tempo clock TCL by 2, step
Based on the judgment processing DSP ≦ PC10 in 513, display data DS
Steps 511 to 51 until P is jump data PC10 or less
Execute the cyclic process consisting of 3. In the execution of the "countdown routine", the backward movement of the pointer PNT and the progress (backward) position of the automatic performance are displayed as in the case described above.

When the display data DSP becomes the jump data PC10 or less due to the backward movement of the pointer PNT and the update of the display data DSP, it is determined to be “YES” in step 513 (FIG. 9) and the “backward movement” is performed in step 502. Execution of the "operator-on event routine" is terminated. This makes the pointer PN
T jumps back and moves backward, and the progress position of the automatic performance is returned by a predetermined amount at a rate corresponding to the length of the entire song.

In such a state, when the pressing operation of the backward operating element 14 being pressed is released, the backward operating element 14 is operated without the function operating element 16 being operated. The "operator off event routine" (FIG. 10) is executed to return the sub-mode of the automatic musical instrument to normal, and the performance data reading speed is also restored.

On the other hand, after releasing the pressing of the retreat operator 14, the retreat operator
When 14 is pressed again at the same time as the function operator 16, the "reverse operator on-event routine" (FIG. 9) is again executed for each pressing operation, and the progress position of the automatic performance is retracted by 10%. . Then, by repeating such an operation, the progress position of the automatic performance is moved backward by 10%, so that it becomes easy to change to the desired progress position.

In the reverse mode or the jump reverse mode as described above, the generation of the tone signal is not controlled, and
As shown in Fig. 16, the previous play mode and play standby mode are not changed.

Modification a. In the play mode of the above embodiment, the current tempo clock number NTM representing the current progress position of the automatic performance is derived by accumulating the time data DUR in step 720 (FIG. 12). However, when increasing the tempo clock TCL by "1" in the mode,
That is, step 205 (FIG. 3), step 419 (FIG. 7)
At the time of execution of the processing shown in the figure, the current tempo clock number NTM may be sequentially incremented by "1" together with the updating of the tempo clock TCL, and the same clock number NTM may be sequentially updated.

b. In the above embodiment, in order to calculate the display data DSP indicating the progress rate of the automatic performance, the total tempo clock number TTM
Is stored (stored in the working memory 43 at the time of recording the performance), but before the reading of the performance data at the start of the play mode, between the song start data and the song end data in the performance data memory 50. It is also possible to accumulate all the time data DUR stored in to calculate the total tempo clock count TTM count each time the performance data is read.

c. In the above embodiment, the progress rate of the automatic performance is calculated by the current tempo clock number NTM and the total tempo clock number TTM as the display data DSP, but the pointer PNT for pointing the address of the performance data memory 50 is used. The progress position ratio of the automatic performance may be calculated based on the address value of the performance data memory 50 storing the song end data. In such a case, before the reading of the performance data in the play mode is started, each performance data stored in the performance data memory 50 is searched and the storage address value of the song end data is stored in the working memory 43 to perform the performance. When reading data, the advance position ratio may be calculated by dividing the pointer PNT value by the stored address value. Also, at the end of the performance data recording mode, the address value at which the song end data is stored is stored and saved, and the held address value is used for calculating the progress position ratio. You may As a result, although it is more inaccurate than the above embodiment, the automatic performance device can be easily constructed because the pointer PNT used for reading the performance data can be used instead of accumulating the current tempo clock number NTM.

d. In the above embodiment, the progress position ratio of the automatic performance is displayed numerically on the display 18, but the lamps arranged in a row or a plurality of rows on the operation panel 10, the lamps arranged in a circular shape. Alternatively, a band-shaped display device may be provided instead of these lamps, and the progress position ratio may be continuously displayed by the lighting amount of the lamp or the display device and the display amount of each color.

e. In the above embodiment, the cycle of the tempo oscillator 31 in the fast-forward mode and the backward mode is always constant (5 milliseconds or 10 milliseconds), but the cycle is set by the tempo operator 17. It may be set according to the tempo data TMP value.

f. In the above embodiment, when changing the tempo of the automatic performance device (tempo change by tempo operator 17, change of tempo in fast-forward mode or backward mode), the cycle of tempo data TMP and tempo oscillator 31 is changed. However, the data DUR value may be changed by a method such as multiplying the time data DUR by a count.

g. In the above embodiment, only the performance data for one song is stored in the performance data memory 50.
The performance data for a plurality of songs may be stored in the same memory 50 by dividing 50. Further, the automatic performance device may be provided with an external storage device such as a time disc, a magnetic tape, an optical disc or the like so that performance data can be exchanged with the performance data memory 50. In such cases,
It is necessary to store the total tempo clock number TTM in the external storage together with the performance data. An external storage device may be used instead of the performance data memory 50.

[Brief description of drawings]

FIG. 1 is a schematic block diagram of an automatic musical instrument according to an embodiment of the present invention, FIGS. 2 to 14 are flow charts corresponding to an example of a program executed by the microcomputer of FIG. 1, and FIG. Is a data format diagram of the performance data stored in the performance data memory of FIG. 1, and FIG. 16 is a state transition diagram of the automatic performance device of FIG. Explanation of symbols 10 …… Operation panel, 10a …… Switch group, 10b …… Display control circuit, 11 …… Start operator, 12 …… Stop operator, 13 …… Fast forward operator, 14 …… Reverse operator, 15 …… Record operator, 16 …… Function operator, 17 …… Tempo operator, 18 …… Display, 31 …… Temp oscillator, 32 …… MI
DI receiver, 33 ... MIDI transmitter, 40 ... microcomputer, 50 ... performance data memory.

Claims (7)

[Claims] 1. An automatic performance device comprising: performance data storage means for storing a plurality of performance data related to musical instrument performance as a musical piece progresses; and reading means for sequentially reading out the plurality of performance data at a predetermined tempo. Progressive position measuring means for measuring the progress position of the musical composition when the performance data is read by the reading means according to the progress of the musical composition; An automatic performance device, comprising: a ratio calculation means for calculating a ratio of the advancing position and a display means for displaying the calculated ratio. 2. Performance data storage means for storing a plurality of performance data consisting of performance event data for controlling the generation of musical tones and relative time data representing a read interval of each performance event data as the music progresses, and music progress. A tempo clock signal generating means for generating a tempo clock signal at a rate corresponding to the speed, and a reading means for sequentially reading the performance event data at a time interval corresponding to the relative time data by counting the tempo clock signal. In an automatic performance device provided with the performance time data, the elapsed time when the performance event data is read out by the reading means is measured in correspondence with the number of tempo clocks, and all performances stored in the performance data storage means. It is necessary to read event data and corresponds to the tempo clock count. The ratio calculating means for calculating the percentage of elapsed time that the measurement for the entire time, the automatic performance apparatus characterized in that a display means for displaying a percentage above calculation. 3. The automatic musical instrument according to claim 2, wherein the elapsed time measuring means is constituted by counting means for counting the tempo clock signal from the start of reading the performance event data by the reading means. 4. The automatic musical instrument according to claim 2, wherein the elapsed time measuring means is constituted by accumulating means for accumulating the relative time data from the start of reading the performance event data by the reading means. 5. The ratio calculation means includes: total time data storage means for storing total time data representing the total time; and total time represented by the total time data stored in the total time data storage means. 3. The automatic performance device according to claim 2, further comprising: a calculating unit that calculates a ratio of the elapsed time measured by the elapsed time measuring unit. 6. A totaling unit for calculating the total time by accumulating all relative time data stored in the performance data storage unit before the reading of the performance event data by the reading unit is started. 3. The automatic performance device according to claim 2, wherein the automatic performance device comprises: means for calculating the ratio of the elapsed time measured by the elapsed time measuring means to the total time calculated by the accumulating means. 7. Performance data storage means for storing a plurality of performance data relating to musical instrument performance at a plurality of addresses as the music progresses, and generating an address signal stepping at a predetermined tempo and designating by the address signal. In an automatic performance device provided with a reading means for sequentially reading the performance data stored in the address, an address value at the time of reading the performance data by the reading means with respect to a final storage address value of the performance data in the performance data storage means. An automatic performance device comprising: a ratio calculation means for calculating a ratio; and a display means for displaying the calculated ratio.