JP2001188536A - Playing practice device and storage medium which stores program for playing practice - Google Patents

Abstract

PROBLEM TO BE SOLVED: To let a beginner to easily receive playing guide using a navigation function for an arbitrary music inputted from an external storage medium o external equipment. SOLUTION: A CPU 1 eliminates event data which are not appropriate for playing practice from the event data of an arbitrary music received from a floppy disk mounted on an FDD 11 via an FDDC 6 or an external equipment through an MIDI interface 7 and stores the data in a RAM 3. During reproduction, the event data of the RAM 3 are read and a turn light-on control of LED 10 corresponding to the event data is executed through an LEDC 5, and a playing guide is conducted by lighting a keyboard of an operating section 9. Moreover, musical sound played from a sound system 12 is generated via a sound source 8 according to the keyboard playing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a performance training apparatus for guiding a performance and a storage medium storing a performance training processing program.

[0002]

2. Description of the Related Art Performance learning devices, such as electronic musical instruments, having a so-called navigation function for guiding a performance are widely used. For example, in an electronic keyboard instrument having a navigation function, a light emitting means such as an LED is provided corresponding to each key of a keyboard, and the LED of a key corresponding to a pitch is depressed at the timing of depressing the key in accordance with the progress of an automatic music. The light is turned on in accordance with, to guide the performance operation. Among the navigation modes, there is a so-called "waiting mode" in which the progress of the music is temporarily stopped until a performance operation is performed, so that even a beginner can easily receive a performance guide. The music data to be guided is music data dedicated to navigation stored in a memory such as a ROM in advance.

On the other hand, many electronic keyboard instruments conform to the MIDI standard, and a standard MIDI file (SM
The music data of F) can be processed. That is, SMF stored on a floppy disk or other external storage medium, or another MIDI via a cable or a communication line.
SMF of various music data between compatible external devices
It has the ability to send and receive Accordingly, there has been a demand for enjoying a variety of music data input from an external storage medium or an external device by using a navigation function to receive a performance operation guide.

[0004]

However, since the music data of the SMF from the outside is not exclusively used for navigation, a sound which is not suitable for a performance guide especially for beginners is often included. For example, there is a case in which a very low volume sound or a very short sound is inserted to produce a so-called glue of a song, or two or more sounds of the same pitch are overlapped for a special effect. It is difficult to perform a performance operation on such a sound even if guided. However, in the "waiting mode", the music does not progress unless such a sound is performed. For this reason, with respect to general SMF music data, only a skilled person can perform performance training using the navigation function, and the navigation function for beginners was not originally utilized.

[0005] It is an object of the present invention to enable a beginner to easily enjoy a performance guide for an arbitrary music input from an external storage medium or an external device by using a navigation function.

[0006]

According to a first aspect of the present invention, there is provided a performance training apparatus for inputting a tune composed of event data of a plurality of musical tones.
CPU1 and FDDC6 and FDD11 or M
IDI / I / F7) and data correction means (in the embodiment, the CPU 1 and the RAM 3 are provided with a CPU 1 and a RAM 3) for deleting, from the event data of the tune inputted by the input means, event data having conditions that are not suitable for performance training. And a performance guide means (in the embodiment, the CPU 1 and the LED) for guiding the performance operation in accordance with the event data not deleted by the data correction means.
C5 and LED 10).

According to a seventh aspect of the present invention, there is provided an input procedure for inputting a tune composed of event data of a plurality of musical tones, and a performance lesson from the event data of the tune inputted by the input procedure. A program for performing a performance training process for executing a data correction procedure for deleting event data having unsuitable conditions and a performance guide procedure for guiding a performance operation in accordance with event data not deleted by the data correction procedure. I have.

According to the first or second aspect of the present invention, the event data of a condition that is not suitable for the performance lesson is deleted from the event data of the music, and a performance guide is performed for the remaining event data.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, first to fifth embodiments of a performance training apparatus according to the present invention will be described with reference to the drawings.
This device has the same configuration as an electronic keyboard instrument,
A switch, a speaker and the like are provided.

FIG. 1 shows a system configuration of a musical sound generator in each embodiment. In FIG. 1, a CPU 1
Sends and receives data and commands to and from each unit connected to the system bus and controls the entire device. ROM2, RAM3, key scan I / F (interface) 4, LEDC5, F
DDC6, MIDI I / F (interface) 7,
The sound source 8 is connected. In the ROM 2, a control program executed by the CPU 1 and initial data for initialization are stored in advance. RAM3 is a CPU
1 is a work area for temporarily storing music data processed by the CPU 1 and other data. The RAM 3 is provided with areas for various registers and flags necessary for executing the control program.

The key scan I / F 4 is connected to an operation unit 9 composed of a keyboard and a switch group. The key scan I / F 4 is used to turn on / off each key and the state of each key in response to a scan command from the CPU 1. Detect state. LEDC5 is
It is connected to a plurality of LEDs provided for each key, and turns on (ON) command and turns off (OFF) the CPU 1.
Each LED is driven according to a command. The performance guide is performed by turning on the LED.

The FDC 6 is a controller for controlling an FDD (Floppy Disk Driver) 11.
In response to the load command of the PU1, the event data of the SMF music stored in the floppy disk is read and temporarily stored in the RAM3. MIDI I / F7
Event data of the SMF music transmitted from the external device is received and temporarily stored in the RAM 3. The sound source 8 is a CPU
A tone signal is generated in accordance with the tone generation command or the mute command, and the event data of the music read from the RAM 3 and parameters such as timbre.
The pronunciation and mute are controlled by.

FIG. 2 shows the format of music data in this embodiment. In the SMF data format, event data and time data are arranged alternately. However, in the present embodiment, for simplicity of explanation, the event data for each address includes time data. And FIG. 2A shows the configuration of music data stored in an external storage medium such as a floppy disk. In this figure, IDX indicates the address of each event data. The event data includes delta time ΔT, command CMD, pitch data NOTE, and velocity data VEL.

ΔT represents the start time of the event data. CMD indicates the content of the command of the event data, “90” indicates the sounding command of channel 0, and “8”
"0" represents a mute command of channel 0. In addition, there are commands representing control changes, program changes, and the like. In FIG. 2A, IDX “0”
And the event data of “1” indicates that the pitch of “C4” is “5”.
It represents a musical tone that is pronounced at a volume value of “0” and silences after a lapse of the pronunciation time “14”. In the event data of IDX “2” and “3”, the pitch of “C4” is “08”.
, And a tone which is muted after the sounding time “08” has elapsed.

FIG. 2B shows the format of the music data stored in the RAM 3 after a part of the event data has been deleted by the data correction described later. In this figure, AD indicates the address of the area of the RAM 3. The data of ΔT, CMD, NOTE, and VEL are the same as those in FIG.

Next, the performance training process according to the first embodiment will be described with reference to FIGS. Figure 3 shows the CP
It is a main flow of a performance training process executed by U1. After a predetermined initialization (step A1), switch processing (step A2), song loading processing (step A3), navigation processing (step A4), keyboard processing (step A5), sound source processing (step A6), and other processing (step A6) Step A7) is executed. Then, it is determined whether or not the power has been turned off (step A8). If the power is not off, steps A2 to A7
The processing loop until is repeated. When the power is turned off, a power-off process (step A9) is performed, and the flow ends.

During the execution of the main flow, when two types of timer interrupts are input, corresponding timer interrupt processing is executed. Timer interrupt 1
Is an interrupt about every 5 to 10 msec. When there is the timer interrupt 1, the value of the timer register T1 is incremented (step A10) and the process returns to the main flow. Timer interrupt 2 is an interrupt (clock interrupt) at a resolution corresponding to the tempo of the music,
If there is this timer interrupt 2, the timer register T2
Is decremented (step A11), and the process returns to the main flow. Note that the values of T1 and T2 are reset to 0 in the initialization.

FIGS. 4 and 5 show the flow of the switching process in step A2 in the main flow of FIG. FIG.
In the flow of (1), it is determined whether or not the music load switch is turned on (step B1). When the switch is turned on, the value of the load flag LF is inverted (step B2). And
It is determined whether or not the inverted LF value is 1 (tune load) (step B3). If this value is 1,
The value of IDX is set to 0 (step B4), and the value of AD is set to 0 (step B5). That is, the head address of the music data on the floppy disk is specified and the head address of the music data storage area in the RAM 3 is specified. Then, the process returns to the main flow. If the value of LF is 0 in step B3, the process immediately returns to the main flow.

If the music load switch is not turned on in step B1, it is determined whether or not the lesson (0) switch is turned on (step B6). When this switch is turned on, the lesson mode register MO
The value of DE is set to 0 (step B7). If the switch is not on, it is determined whether the lesson (1) switch is on (step B8). When this switch is turned on, the value of MODE is set to 1 (step B9). If this switch is not on, it is determined whether or not the lesson (2) switch has been turned on (step B10). When this switch is turned on, the value of MODE is set to 2 (step B1).
1). After setting the value of MODE, the process returns to the main flow.

When the value of MODE is 0, the performance guide is performed by turning on the LED 10 of the corresponding key according to the event data of the sound generation, but the music data is advanced without waiting for the key to be pressed. If the value of MODE is 1, the LED 10 of the corresponding key is turned on in accordance with the event data of the tone generation to guide the performance, and the progress of the music data is interrupted until any key is pressed. . When the value of MODE is 2, the LED 10 of the corresponding key is turned on in accordance with the event data of the sound generation to guide the performance, and the progress of the music data is performed until the key corresponding to the event data is pressed. Interrupt.

Lesson switches (0), (1), (2)
If none of the switches is turned on, it is determined whether or not the reproduction switch has been turned on in the flow of FIG. 5 (step B12). When the switch is turned on, the value of the start flag STF is inverted (step B13). Then, the inverted STF value is 1 (reproduction)
Is determined (step B14). If this value is 1, the address value of AD is set to 0 (head address) (step B15), and the value of ΔT of the event data at that address is set to T2 (step B16). Then, a timer interrupt is permitted (step B17), and the process returns to the main flow.

If the STF is 0 (reproduction stopped) in step B14, the timer interrupt is prohibited (step B18). Then, the process returns to the main flow. . If the reproduction switch is not turned on in step B12, it is determined whether or not another switch is turned on (step B19). If any other switch is turned on, a process corresponding to that switch is performed (step B20), and the process returns to the main flow. If neither switch is turned on, the process immediately returns to the main flow.

FIG. 6 is a flowchart of the music loading process in step A3 in the main flow of FIG. First, it is determined whether or not the value of LF is 1 (tune load) (step C).
1) If this value is 0, it is not a song load,
Return to the main flow immediately. When the value of LF is 1, the event data of the address of IDX, EVEN,
T (IDX) is loaded from the floppy disk (step C2). Then, it is determined whether or not the command CMD (IDX) of the event data is note-on (step C3).

When the CMD (IDX) is note-on, the velocity data V of the event data
It is determined whether or not the value of EL (IDX) is smaller than a preset minimum value (step C4). VEL (ID
If the value of X) is equal to or larger than the minimum value, the loaded event data EVENT (IDX) is stored in the area MEM (AD) of the RAM 3 specified by the address of AD (step C5). Next, the address of the AD is incremented (step C6), and the address of the IDX is incremented (step C7). Then, it is determined whether or not the music data to be loaded has been completed (step C8).
If the music data has not been completed, the process proceeds to step C2 to load the next event data.

In step C4, VEL (IDX)
Is smaller than the minimum value, the NOTE (IDX) data indicating the pitch of the event data is stored in the register P.
Store in ASS (step C9). The PASS has an array structure and can store a plurality of pitch data. However, since this array structure is not directly related to the present invention, a detailed description is omitted. In this embodiment and other embodiments described below, the PASS functions as a register that stores one piece of pitch data.

In step C4, VEL (IDX)
Is smaller than the minimum value, the event data is not stored in the RAM 3 and the value of the delta time ΔT (IDX) of the event data is stored in the next address (IDX +
1) Delta time ΔT of event data (IDX +
It is added to the value of 1) (step C10). Next, IDX
Is incremented (step C7). Then, it is determined whether or not the music data to be loaded has been completed (step C8). If the music data has not been completed, the process proceeds to step C2 to load the next event data.

If CMD (IDX) is not note-on in step C3, it is determined whether CMD (IDX) is note-off (step C11). If the command is not a note-off but a control change or program change command, the event data EVENT (IDX) is stored in MEM (A
D). In step C11, CMD (I
If DX) is note-off, the pitch data N
It is determined whether the OTE (IDX) is not the same as the pitch data stored in PASS in step C9 (step C12). If they are not the same, the event data EVENT (IDX) is stored in ME at step C5.
Store in M (AD).

If the pitch data is the same, the note-off event data is not stored in the RAM 3 but
The pitch data of NOTE (IDX) is deleted from the PASS (step C13), and the value of the delta time ΔT (IDX) of the event data is changed to the delta time ΔT (IDX + 1) of the event data at the next address (IDX + 1) in step C10. Is added to the value of. PA for pitch data
Deletion from the SS prevents subsequent event data from being accidentally deleted. Further, by adding the value of the delta time to the next event data, occurrence of a time lag due to data deletion is prevented. Next, the address of AD is incremented in step C7,
Specify the following event data. Then, it is determined whether or not there is the designated event data, that is, whether or not the music data to be loaded has been completed (step C8).

As long as the music data is not completed, the processing loop from step C2 to step C7 is repeatedly executed, and event data whose volume is smaller than the set minimum value is not stored in the RAM 3. Step C
When the music data to be loaded is completed in step 8,
F is set to 0 (step C14), and the process returns to the main flow.

For example, in the music data shown in FIG. 2A, the value of VEL in the note-on event data in the area corresponding to the address IDX = 2 is 08. Assuming that the minimum value of the volume is set to 10, this event data and the corresponding note-off event data (IDX = 3) are deleted without being stored in the RAM 3. Therefore, the music data in the RAM 3 is modified as shown in FIG.

FIG. 7 is a flowchart of the navigation processing in step A4 in the main flow of FIG. First,
It is determined whether or not the STF is 1 (navigation operation state) (step D1).
It is determined whether the value of 2 has reached 0 (step D).
2). If STF is 0 (navigation stopped state) in step D1, or if TTF is
If the value of 2 has not reached 0 and the start timing of the event data has not been reached, this flow is immediately terminated and the process returns to the main flow.

If the value of T2 has reached 0 in step D2, EVENT (AD) is read from the MEM (AD) area of the RAM 3 (step D3) and whether or not the CMD (AD) is note-on is determined. Is determined (step D4). If the note is on, LED [N] which is an LED driving register corresponding to the pitch
OTE (AD)] is turned on, that is, turned on (step D5).

Next, it is determined whether the value of MODE is 1 or 2 (step D6). That is, it is determined whether or not the mode is a mode of waiting for key depression. MODE value is 1 or 2
In step D7, the timer interrupt is prohibited (step D7), and it is determined whether or not a key is pressed (step D7).
8). When the key is pressed, it is determined whether or not the value of MODE is 2 (step D9). If the value of MODE is 2, the key depressed key number that is the data of the register KEY and the note data that is the pitch data of the event data
(AD) is determined (step D10). That is, it is determined whether or not the key corresponding to the lighting of the LED has been pressed. If no key is pressed, or M
If the key pressed is wrong when ODE is 2, the determination of the presence or absence of the key press is continued in step D8.

When the value of MODE is 2 and the key corresponding to the lighting of the LED is pressed, or when the value of MODE is 1 and any key is pressed, the timer interrupt is permitted. (Step D11). Thereafter, or in the mode in which the value of MODE is 0 and the key is not depressed in step D6, the address of AD is incremented (step D12), and the next event data is designated. Then, it is determined whether or not the designated event data exists, that is, whether or not the music data has ended (step D13). If the specified event data exists instead of the end of the music data, ΔT (AD) of the event data
Is set to T2 (step D1).
4). Then, the process returns to the main flow.

If CMD (AD) is not note-on in step D4, it is determined whether CMD (AD) is note-off (step D15). If the note is off, the register LED corresponding to the pitch
[NOTE (AD)] is turned off, that is, turned off (step D16). Then, the process shifts to step D12 to increment the AD and designate the next event data. If CMD (AD) is not note-off in step D11, that is, if the command is not related to key press / key release, such as control change or program change, the process proceeds to step D12, where AD is incremented and the next is executed. Specify event data for.

When the music data ends in step D13, the timer interrupt is prohibited (step D13).
17), STF is set to 0 (navigation stopped state) (step D18). Then, the process returns to the main flow.

As described above, in the first embodiment,
Event data of an extremely low volume that is not suitable for performance training is deleted from the event data of the music, and a performance guide is performed for the event data having a relatively high volume.

Next, a second embodiment of the present invention will be described. The main flow of the CPU 1 and the switch processing and the navigation processing in the main flow in the second embodiment and third to fifth embodiments to be described later are the same as the flows shown in FIGS. 3, 4, 5, and 7. Therefore, the drawings and the description thereof are omitted.

FIG. 8 is a flowchart of music loading processing according to the second embodiment. First, it is determined whether or not the value of LF is 1 (load of music) (step E1). If this value is 0, it is not a load of music and the process immediately returns to the main flow. If the value of LF is 1, EVENT (IDX), which is event data at the address of IDX, is loaded from the floppy disk (step E2). Then, it is determined whether or not the command CMD (IDX) of the event data is note-on (step E3).

When the CMD (IDX) is note-on, the sounding time (sound length) of this event data is measured. First, an ID is set to a pointer m for prefetching event data after the currently loaded event data.
The value of X + 1, that is, the address of the next event data is set (step E4). Next, it is determined whether or not the data of CMD (m) is note-off (step E).
5). If the change is not a note-off but a control change or a program change, data other than note data is inserted between the note-on event data and the note-off event data. In this case, the value of Δ (m) is added to ΔT (m + 1) (step E6). That is, the delta time of the data other than the note data is added to the next event data.

Next, m is incremented (step E7), and the next event data is designated. Then, in step E5, the CMD (m) of the event data is determined. If CMD (m) is note-off, the delta time of ΔT (m) indicates the sounding time of EVENT (IDX) loaded in step E2. Therefore, it is determined whether the value of ΔT (m) is smaller than a preset minimum value (step E).
8).

If the value of ΔT (m) is equal to or larger than the minimum value, the loaded event data is stored in the area MEM (AD) of the RAM 3 specified by the address of the AD (step E9). Next, the address of AD is incremented (step E10), and the address of IDX is incremented (step E11). Then, it is determined whether or not the music data to be loaded is completed (step E1).
2). If the song data is not completed, step E
Go to step 2 to load the next event data.

If the value of ΔT (m) is smaller than the minimum value in step E8, the event data is stored in RA
Instead of storing the value in M3, the value of the pitch data NOTE (m) of the event data is stored in the register PASS (step E13). Further, the value of the delta time ΔT (IDX) of the event data is stored in the next address (IDX +
1) Delta time ΔT of event data (IDX +
It is added to the value of 1) (step E14). Next, IDX
Is incremented (step E11).
Then, it is determined whether or not the music data to be loaded is completed (step E12). If the music data has not been completed, the process moves to step E2 to load the next event data.

If CMD (IDX) is not note-on in step E3, it is determined whether CMD (IDX) is note-off (step E15). If the command is not a note-off command but a control change or program change command, the event data EVENT (IDX) is stored in step E9 in MEM (A
D). In step E15, CMD (I
If DX) is note-off, the pitch data N
It is determined whether the OTE (IDX) is not the same as the pitch data stored in PASS in step E13 (step E16). If not, step E
In step 9, the event data EVENT (IDX) is stored in the MEM (AD).

If the pitch data is the same, the event data is not stored in the RAM 3 and the NOTE (I
DX) is deleted from PASS (step E17). Then, in step E14, the value of the delta time ΔT (IDX) of the event data is stored in the next address (IDX).
+1) event data delta time ΔT (IDX +
Add to the value of 1). Next, in step E11, A
The address of D is incremented and the next event data is specified. Then, it is determined whether or not the designated event data exists, that is, whether or not the music data to be loaded has been completed (step E12).

As long as the music data is not completed, the processing loop from step E2 to step E11 is repeatedly executed, and event data smaller than the set minimum sounding time are deleted without storing them in the RAM 3. . When the music data to be loaded is completed in step E12, LF is set to 0 (step E12).
18) Return to the main flow.

For example, in the music data shown in FIG. 2A, the value of ΔT in the note-off event data of the area corresponding to the address IDX = 3 is 08. Assuming that the minimum value of the sound generation time is set to 10, this event data and the corresponding note-on event data (IDX = 2) are deleted without being stored in the RAM 3.
Therefore, the music data in the RAM 3 is modified as shown in FIG.

As described above, in the second embodiment,
Event data of an extremely short sounding time which is not suitable for the performance lesson is deleted from the event data of the music, and a performance guide is performed for the event data having a long sounding time to some extent.

Next, a third embodiment of the present invention will be described with reference to the flow of the CPU 1 shown in FIG. The flow of FIG. 9 is a music loading process when the sounding of the event data of the same pitch starts before the sounding time of the event data of a certain pitch ends. The purpose of such event data is to aim for a special effect. However, in a keyboard instrument, since only one key corresponds to one pitch, navigation for two event data of the same pitch is required. Can not. In the third embodiment, the performance guide is performed only for the event data that starts sounding first.

In the flow of FIG. 9, first, it is determined whether or not the value of LF is 1 (tune load) (step F).
1) If this value is 0, it is not a song load,
Return to the main flow immediately. When the value of LF is 1, the event data of the address of IDX, EVEN,
T (IDX) is loaded from the floppy disk (step F2). Then, it is determined whether or not the command CMD (IDX) of the event data is note-on (step F3).

When CMD (IDX) is note-on, the pitch data NOTE (IDX) is stored in the register P.
It is determined whether or not the pitch data is not the pitch data stored in the ASS (step F4). PASS is a register for storing pitch data of event data to be deleted. NO
If TE (IDX) is not the pitch data stored in PASS, the value of IDX + 1, that is, the address of the next event data is set in the pointer m (step F5). Then, it is determined whether or not the CMD (m) data is note-on (step F6). That is,
Before the sounding time of the note-on event data ends, it is determined whether or not there is another note-on event data.

If the CMD (m) data is not note-on, it is determined whether the CMD (m) data is note-off (step F7). If it is not a note-off but a control change or a program change, m is incremented (step F8), and it is determined in step F6 whether the next event data is a note-on. If the data of CMD (m) is note-on, it is determined whether or not the pitch data NOTE (m) of the event data is the same as the pitch data NOTE (IDX) of the loaded event data ( Step F9).

If the pitch data is different, the loaded event data is designated by the address of the AD.
Store in area MEM (AD) of M3 (step F
10). Next, the address of AD is incremented (step F11), and the address of IDX is incremented (step F12). Then, it is determined whether or not the music data to be loaded is completed (step F13). If the music data has not been completed, the process goes to step F2 to load the next event data.

If both pitch data are the same in step F9, NOTE (m) is stored in PASS (step F14), and flag OFF is set to 1 (step F15). Then, in step F10, the event data EVENT (IDX) is stored in the MEM (A
D). That is, the event data for starting sound generation is stored in the RAM 3 first. Thereafter, the process goes through steps F11 and F12, and since the music data is not ended in step F13, the process proceeds to step F2 to load the next event data.

If the loaded event data is note-on and the pitch data NOTE (IDX) is the same as the pitch data stored in PASS in step F14, the event data is not stored in the RAM 3 but The process proceeds from step F4 to step F16,
The value of the delta time ΔT (IDX) of the event data is added to the value of the delta time ΔT (IDX + 1) of the event data at the next address (IDX + 1). Next, I
Increment DX address (step F1)
2). Then, it is determined whether or not the music data to be loaded is completed (step F13). If the music data has not been completed, the process goes to step F2 to load the next event data.

If CMD (IDX) is not note-on in step F3, it is determined whether CMD (IDX) is note-off (step F17). If the command is not a note-off but a control change or program change command, the event data EVENT (IDX) is stored in MEM in step F10.
(AD). CMD in step F17
If (IDX) is note-off, the pitch data NOTE (IDX) is stored in the PAS in step F14.
It is determined whether the pitch data is not the same as the pitch data stored in S (step F18). If they are not the same, the event data EVENT (ID
X) is stored in MEM (AD).

If the pitch data is the same as that stored in PASS, it is determined whether or not OFF is 1 (step F19). If OFF is 1, it is set to 0 (step F20), and in step F10, the event data EVENT (ID
X) is stored in MEM (AD). The note-off event data in this case is stored in the RAM 3 because the note-off is a sound-off instruction note-off for the event data previously instructed to sound (the event data stored in the RAM 3).

Thereafter, steps F11 to F13
Then, the process proceeds to step F2, and when the next event data is loaded, the CMD (IDX) is note-off,
Moreover, if the pitch data is the same as the pitch data stored in the PASS, Step F17, Step F18, Step F18
Move to 19. Then, in step F19, OF
Since F is 0, this event data is stored in RAM
Do not store in 3. That is, since this event data is a note-off of a mute instruction for the event data for which a sound instruction was given later (deleted event data), R
It is not stored in AM3.

Then, the note (IDX) pitch data is deleted from the PASS (step F21), and in step F16, the delta time ΔT of the event data is obtained.
The value of (IDX) is added to the value of the delta time ΔT (IDX + 1) of the event data at the next address (IDX + 1). Next, in step F12, IDX is incremented, and in step F13, it is determined whether or not the music data ends. Unless the music data is completed, step F2
To repeatedly execute the processing loop of Step F12. When the music data to be loaded is completed in step F13, LF is set to 0 (step F22),
Return to the main flow.

As described above, in the third embodiment,
Event data of two musical tones with the same pitch and overlapping sounding times among the event data of a song are not suitable for performance lessons. A performance guide is provided only for the event data of the started musical tone.

In the third embodiment, the event data of two musical tones having overlapping sounding times have been described as an example. However, data of three or more event data having overlapping sounding times are also deleted. Is basically the same. In this case, information for identifying the order of the event data may be stored in the PASS array.

Next, a fourth embodiment of the present invention will be described with reference to the flow of the CPU 1 shown in FIG. FIG.
The flow of 0 is the music loading processing in the case where the event data of another musical tone starts to be emitted at the same pitch before the sounding time of the event data of a musical tone ends, as in the third embodiment. However, in the fourth embodiment, the performance data is guided only for the event data of the loud musical tone, while the event data of the loud musical tone of the two musical tones is deleted.

In the flow of FIG. 10, first, it is determined whether or not the value of LF is 1 (load music) (step G).
1) If this value is 0, it is not a song load,
Return to the main flow immediately. When the value of LF is 1, the event data of the address of IDX, EVEN,
T (IDX) is loaded from the floppy disk (step G2). Then, it is determined whether or not the command CMD (IDX) of the event data is note-on (step G3).

When CMD (IDX) is note-on, the pitch data NOTE (IDX) is stored in the register P
It is determined whether or not the pitch data is not the pitch data stored in the ASS (step G4). NOTE (IDX) is PAS
If the pitch data is not stored in S, it is determined whether or not the flag OFF1 is 1 (step G).
5). When OFF1 is 1, the event data loaded first among the note-off event data of the same pitch data is deleted, and the event data loaded later is R
Store in AM3. The value of OFF1 identifies whether the loaded note-off event data is the first or the last one. If OFF1 is 1, NOTE
(IDX) is stored in PASS (step G6).

Next, the value of IDX + 1, that is, the address of the next event data is set in the pointer m (step G7). If OFF1 is 0, step G6
Is not stored in PASS, the value of IDX + 1 is set to m in step G7. After step G7, it is determined whether or not the CMD (m) data is note-on (step G8). That is, before the sounding time of the note-on event data ends, it is determined whether or not there is the next note-on event data.

If the CMD (m) data is not note-on, it is determined whether the CMD (m) data is note-off (step G9). If it is not a note-off but a control change or a program change, m is incremented (step G10), and it is determined in step G8 whether or not the next event data is a note-on. If CMD (m) is note-on, the pitch data N of the event data
It is determined whether or not OTE (m) is the same as the pitch data NOTE (IDX) of the loaded event data (step G11).

If the pitch data is different, the loaded event data is specified by the address of the AD.
Store in area MEM (AD) of M3 (step G
12). Next, the address of AD is incremented (step G13), and the address of IDX is incremented (step G14). Then, it is determined whether or not the music data to be loaded is completed (step G15). If the music data has not been completed, the process proceeds to step G2 to load the next event data.

If the pitch data is the same at step G11, the magnitudes of the volumes of VEL (m) and VEL (IDX) are compared (step G16). VEL
If the value of (IDX) is greater than the value of VEL (m), that is, if the volume of the loaded note-on event data is greater than the volume of the next note-on event data, the tone with the smaller volume is played. To delete the tone data, the pitch data NOTE (m) of the musical tone is stored in PASS (step G17). Next, 1 is set to the flag OFF2 (step G18).

When OFF1 is 2, the event data loaded first among the note-off event data of the same pitch data is stored in the RAM 3, and the event data loaded later is deleted. The value of OFF2 identifies whether the loaded note-off event data is the first or subsequent event data. After setting OFF2 to 1, the loaded event data is stored in the MEM (AD) (step G12). Then, the address of the AD is incremented (step G13), and the address of the IDX is incremented (step G14).

In step G16, VEL (ID
When the value of X) is smaller than the value of VEL (m), that is, when the volume of the loaded note-on event data is lower than the volume of the next note-on event data, OFF1 is set to 1 (step). G19). That is, a flag process for deleting note-off event data corresponding to the loaded note-on event data is performed. Then, the loaded note-on event data is not stored in the RAM 3 and the value of the delta time ΔT (IDX) of the event data is stored in the next address (I
DX + 1) event data delta time ΔT (ID
X + 1) (step G20). And
The IDX is incremented to specify the event data to be loaded next (step G14).

After incrementing IDX in step G14, it is determined whether or not the music data to be loaded has been completed (step G15). If the music data has not been completed, the process proceeds to step G2 to load the next event data. In step G3, CMD (I
If DX) is not note-on, CMD (IDX)
It is determined whether or not is a note-off (step G2)
1). If it is not a note-off but a command such as a control change or program change, step G
12, the event data EVENT (IDX)
Is stored in the MEM (AD).

In step G9, CMD (m)
If is a note-off, the event data is
Either note-off event data for loaded note-on event data or RAM
3 is the note-off event data of another pitch stored in No.3. In this case, other musical tones of the same pitch do not overlap within the sounding time of the musical tones of the loaded note-on event data. Therefore, the loaded note-on event data EVENT (IDX) is stored in MEM (AD) (step G12).

If the CMD (IDX) of the event data loaded in step G2 is not note-on but note-off (step G21), the pitch data NOT is output.
It is determined whether E (IDX) is not the same as the pitch data stored in PASS in step G6 (step G22). If the pitch data is not the same, the event data is note-off event data of another pitch previously stored in the RAM 3. In this case,
The event data EVENT (I
DX) is stored in the MEM (AD) (step G1).
2).

If the note-off pitch data is the same as that stored in PASS in step G22, it is determined whether OFF2 is 1 or not (step G23). If OFF2 is 1, the first note-off event data is stored in the RAM 3, so that OFF2 is set to 0 (step G24), and the note-off event data EVENT (IDX) is stored in MEM in step G12. (AD).

If OFF2 is 0 in step G23, it is determined whether OFF1 is 1 (step G25). If OFF1 is 1, it is necessary to delete the loaded note-off event data. In this case, OFF1 is set to 0 (step G26). NOTE (IDX) is set to P so that the event data of the note-off to be loaded later is not deleted.
It is deleted from the ASS (step G27). Then, in step G20, the value of the delta time ΔT (IDX) of the event data is added to the value of the delta time ΔT (IDX + 1) of the event data of the next address (IDX + 1).

If OFF2 is 0 in step G23 and OFF1 is also 0 in step G25, this means that the note-off event data loaded later is deleted. In this case, NOTE (IDX) is deleted from PASS (step G27). Then, in step G20, the value of the delta time ΔT (IDX) of the event data is added to the value of the delta time ΔT (IDX + 1) of the event data of the next address (IDX + 1).

Next, in step G14, IDX is incremented, and in step G15, it is determined whether or not the music data ends. Unless the music data ends, the processing loop of steps G2 to G14 is repeatedly executed. When the music data to be loaded is completed in step G15, LF is set to 0 (step G2).
8) Return to the main flow.

As described above, in the fourth embodiment,
Event data of two musical tones having the same pitch and overlapping sounding times from among the event data of a song are not suitable for performance lessons. Therefore, the event data of the musical tone with the lower volume is deleted, and the event data with the higher volume is deleted. Only the event data of the musical tone is stored in the RAM 3 to perform a performance guide.

In this case, in order to compensate for the decrease in volume due to the deleted musical tone, a process of storing the event data of the musical tone to be stored in the RAM 3 by increasing the VEL value may be performed.

Next, a fifth embodiment of the present invention will be described with reference to the flow of the CPU 1 shown in FIG. FIG.
The flow 1 is also a music loading process in which event data of another musical tone starts to sound at the same pitch before the sounding time of the event data of a musical tone ends. However, in the fifth embodiment, a performance guide is performed by correcting such two musical tones having the same pitch into one continuous musical tone.

In the flow of FIG. 11, first, it is determined whether or not the value of LF is 1 (tune load) (step H).
1) If this value is 0, it is not a song load,
Return to the main flow immediately. When the value of LF is 1, the event data of the address of IDX, EVEN,
T (IDX) is loaded from the floppy disk (step H2). Then, it is determined whether or not the command CMD (IDX) of the event data is note-on (step H3).

When CMD (IDX) is note-on, the pitch data NOTE (IDX) is stored in the register P
It is determined whether or not the pitch data is not the pitch data stored in the ASS (step H4). PASS is a register for storing pitch data of event data to be deleted. NO
If TE (IDX) is not the pitch data stored in PASS, the value of IDX + 1, that is, the address of the next event data is set in the pointer m (step H5). Then, it is determined whether or not the CMD (m) data is note-on (step H6). That is,
Before the sounding time of the note-on event data ends, it is determined whether or not there is another note-on event data.

If the CMD (m) data is not note-on, it is determined whether the CMD (m) data is note-off (step H7). If it is not a note-off but a control change or a program change, m is incremented (step H8), and it is determined in step H6 whether or not the next event data is a note-on. If the data of CMD (m) is note-on, it is determined whether or not the pitch data NOTE (m) of the event data is the same as the pitch data NOTE (IDX) of the loaded event data ( Step H9).

If the pitch data is different, the loaded event data is designated by the address of the AD.
Store in area MEM (AD) of M3 (step H
10). Next, the address of AD is incremented (step H11), and the address of IDX is incremented (step H12). Then, it is determined whether or not the music data to be loaded has been completed (step H13). If the music data has not been completed, the process goes to step F2 to load the next event data.

In step H9, if both pitch data are the same, NOTE (m) is stored in PASS (step H14), and the loaded note-on event data EVENT (IDX) is stored in MEM (AD). (Step H10). That is, the event data for starting sound generation is stored in the RAM 3 first. Thereafter, the program goes through steps H11 and H12, and since the music data does not end in step H13,
Go to step 2 to load the next event data.

In step H3, if CMD (IDX) is note-off, the loaded event data is note-on, and the pitch data NOTE (IDX) is the pitch data stored in PASS in step H14. , Without storing the event data in the RAM 3, the delta time ΔT (I
DX) is added to the value of the delta time ΔT (IDX + 1) of the event data at the next address (IDX + 1) (step H15). Next, the address of IDX is incremented (step H12). Then, it is determined whether the music data to be loaded is completed (step H1).
3). If the song data is not completed, step H
Go to step 2 to load the next event data.

If CMD (IDX) is not note-on in step H3, it is determined whether CMD (IDX) is note-off (step H16). If the command is not a note-off but a control change, program change, or the like, the event data EVENT (IDX) is stored in MEM in step H10.
(AD). CMD in step H16
If (IDX) is a note-off, the pitch data NOTE (IDX) is transmitted to the PAS in step H14.
It is determined whether the pitch data is not the same as the pitch data stored in S (step H17). If they are not the same, the event data EVENT (ID
X) is stored in MEM (AD).

If the pitch data is the same as that stored in the PASS, the note data of NOTE (IDX) is deleted from the PASS (step H18), and the delta time of the event data is determined in step H15. The value of ΔT (IDX) is added to the value of the delta time ΔT (IDX + 1) of the event data at the next address (IDX + 1). Next, in step H12, IDX is incremented, and in step H13, it is determined whether or not the music data ends. Unless the music data ends, the processing loop of steps H2 to H12 is repeatedly executed. When the music data to be loaded is completed in step H13, LF is set to 0 (step H1).
9) Return to the main flow.

As described above, in the fifth embodiment,
Event data of two musical tones having the same pitch and overlapping sounding times from among the event data of a tune are not suitable for performance lessons. Therefore, two musical tones of the same pitch are corrected to one continuous musical tone and played. Do the guide.

In each of the above embodiments, the event data of the music stored on the floppy disk is stored in the RAM 3 while deleting the event data under conditions that are not suitable for the performance lesson, and all the event data are stored. Later, the modified event data is
It is configured to read from AM3 and play it back. However, event data loaded from a floppy disk, MIDI
The event data received by the I / F 7 may be reproduced in real time, and the data may be corrected at the time of the reproduction.

In each of the above embodiments, the event data of the music stored on the floppy disk is automatically corrected and stored in the RAM 3 under the condition unsuitable for the performance lesson. A configuration may be adopted in which the performer arbitrarily sets whether or not to correct the data.

Further, in each of the above embodiments, whether or not the event data is not suitable for the performance training is determined based on the individual musical tones. However, the entire music data is played using a statistical method. It may be configured to determine whether or not the training is suitable. For example, a deviation value of each of a plurality of event data is calculated using the volume and the sound length of the event data as sample values. Then, a configuration may be adopted in which whether or not to delete data is determined based on a deviation value of each event data.

Further, in each of the above embodiments, whether or not the data is to be corrected may be set according to the timbre of the musical tone (the type of musical instrument). In addition, the first or second
In the embodiment, the minimum value of the volume or the sound length for deleting for each tone may be set. For example, the set value of the minimum volume of the violin is set small, and the set value of the minimum volume of the trombone is set large. The set value of the minimum pitch of the drum system is short, and the set value of the minimum pitch of the wind instrument is long.

In each of the above embodiments, the CPU
Reference numeral 1 denotes a configuration in which the performance training process is performed by a control program stored in the ROM 2 in advance. However, the control program for the performance training process is stored in a floppy disk, a magneto-optical disk, or another storage medium, and the CPU 1 reads the control program. May be executed. In this case, the invention of the storage medium is configured. Alternatively, a configuration may be adopted in which a control program for the performance training process is downloaded and executed via a communication line.

[0095]

According to the present invention, a performance guide is performed for the remaining event data by deleting the event data that is not suitable for the performance lesson from the music event data. Therefore, even a beginner can easily enjoy a performance guide for an arbitrary music input from an external storage medium or an external device by using the navigation function.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a system configuration of a performance training device according to each embodiment of the present invention.

FIG. 2 shows an event data format of a song;
(1) is a diagram before data correction and (2) is a diagram after data correction.

FIG. 3 is a main flowchart of a CPU and a flowchart of a timer interrupt process in each embodiment.

FIG. 4 is a flowchart of a switch process in the main flowchart of FIG. 3;

FIG. 5 is a flowchart of a switch process following FIG. 4;

FIG. 6 is a flowchart of a music loading process according to the first embodiment.

FIG. 7 is a flowchart of a navigation process in the main flowchart of FIG. 3;

FIG. 8 is a flowchart of a music loading process according to the second embodiment.

FIG. 9 is a flowchart of a music loading process according to the third embodiment.

FIG. 10 is a flowchart of a music loading process according to the fourth embodiment.

FIG. 11 is a flowchart of a music loading process according to the fifth embodiment.

[Description of Signs] 1 CPU 2 ROM 3 RAM 4 Key scan interface 5 LEDC 6 FDDC 7 MIDI interface 8 Sound source 9 Operation unit 10 LED 11 FDD 12 Sound system

Claims (7)

[Claims] 1. An input means for inputting music composed of event data of a plurality of musical tones, and data for deleting event data having conditions unsuitable for performance lessons from event data of music input by the input means. A performance training device comprising: correction means; and performance guide means for guiding a performance operation in accordance with event data not deleted by the data correction means. 2. The performance training apparatus according to claim 1, wherein the data correction means deletes event data of the musical tone when the volume of the musical tone is lower than a preset volume. 3. The performance training apparatus according to claim 1, wherein the data correction means deletes event data of the musical sound when the musical sound generation time is shorter than a preset time. 4. The data correction means according to claim 1, wherein, when a plurality of musical tones having the same pitch have the same sounding time, at least one musical tone has event data and another musical tone has event data deleted. The performance training device according to claim 1, wherein: 5. When a plurality of musical tones having the same pitch overlap with each other, said data correcting means sets a continuous period from the earliest sounding start timing to the last silence timing in said sounding time. 2. The performance training apparatus according to claim 1, wherein the performance data is corrected to event data of one musical tone having a set sound generation time. 6. The data correction unit according to claim 1, wherein the data correction unit deletes event data input from the input unit when the music is reproduced, the condition being unsuitable for the performance lesson.
5. The performance training device according to any one of 5. 7. An input procedure for inputting a song composed of event data of a plurality of musical tones, and data for deleting, from the event data of the song input by the input procedure, event data having conditions unsuitable for a performance lesson. A storage medium storing a correction procedure, a performance guide procedure for guiding a performance operation in accordance with event data not deleted by the data correction procedure, and a performance training processing program for executing the following.