JP2555560B2 - Electronic musical instrument - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic musical instrument in which a pre-stored melody is played in response to an operation of pitch specifying means.

[0002]

2. Description of the Related Art Some conventional electronic musical instruments have a mode called a melody guide mode. This is because the melody stored in the ROM pack or the like automatically advances in response to a key depression operation on the keyboard, and an LE that indicates a key corresponding to the pitch of the melody tone to be pronounced.
The key to be pressed is notified by turning on D (effect diode) or the like. Then, the melody sound is generated only when the keys designated by the LEDs that are sequentially turned on according to the progress of the melody are pressed, and when the wrong key that is not designated is pressed, the melody sound is not generated and the melody sound is not generated. Since the progress of the procedure stops, even a beginner can easily learn the correct key-press operation for playing a melody.

Some conventional electronic musical instruments have a mode called ANY KEY PLAY mode in addition to the melody guide mode. In this ANY KEY PLAY mode, every time any key on the keyboard is pressed, the melody sound that is stored in advance is not stored at the key-press timing but the musical tone specified by that key. Is pronounced. Therefore, if you select ANY KEY PLAY mode,
By pressing a key in accordance with the rhythm of the melody to be played, the melody automatically advances at the key pressing timing, so that even a beginner can easily play various melody with the correct rhythm.

[0004]

However, the conventional electronic musical instrument provided with the above two modes is in a state of waiting for selection of music when switching from one mode to the other mode, and continues to play the same melody. I can't. For this reason, after selecting the music again, it is extremely inconvenient to play again from the beginning of the melody.

For example, in the melody guide mode, if you want to play a song that is easy to play in the first part that can only be played correctly halfway, and want to play it more correctly from a difficult place to play, switch to the ANY KEY PLAY mode where the key operation is easy. After switching, I had to select the same song and then replay it from the beginning. That is, in this case, if you want to play the entire song continuously, use ANY KE
I had no choice but to play in Y mode.

On the contrary, for a song whose beginning part is difficult to play, it is only possible to start playing in the ANY KEY PLAY mode, and it is impossible to switch from the easy-to-play part to the melody guide mode and continue playing. Yes, even in this case, I had no choice but to perform all the performances in ANY KEY PLAY mode. However, the performance in ANY KEY mode is
The feeling of actually playing was not good enough for the user.

An object of the present invention is that even if there is a difficult part in a piece of music, the performance can be continued to the end without interruption, and the easy-to-play part is the same as the actual melody performance. It is to provide an electronic musical instrument that can be played by various operations.

[0008]

The means of the present invention are as follows. In the invention according to claim 1, the pitch designating means is composed of a plurality of keys as described in claim 5, for example, and designates an arbitrary pitch.

The pitch information storage means is composed of, for example, a ROM pack or a ROM chip that can be attached to and detached from the main body of the apparatus, and stores pitch information indicating the pitch of each melody sound that constitutes an arbitrary melody. The pitch information is composed of binary or hexadecimal value data, which is associated with each pitch one-to-one, and is stored in the order of progression of the melody.

The reading means is composed of, for example, a microprocessor or the like, and sequentially reads the pitch information from the pitch information storage means in the order of melody progression. The instructing means is composed of, for example, a light emitting diode or the like, and sequentially instructs the pitch specifying means to be currently operated.

The sound generation processing means performs sound generation processing based on the pitch information read by the reading means. The pronunciation by this pronunciation processing means is, for example, MIDI (Musical Ins
It is performed by controlling the MIDI sound source by transmitting MIDI information based on the digital audio interface (Trument Digital Interface) or by controlling the built-in or external digital sound source or analog sound source.

The detection means is composed of, for example, a microprocessor, and detects the match / mismatch between the pitch designation means designated by the designation means and the pitch designation means operated. The coincidence counting means is, for example, a register in the RAM, and counts the number of coincidences detected by the detecting means.

The disagreement number counting means is also a register in the RAM, for example, and counts the number of disagreements detected by the detection means. The first control means is, for example, a microprocessor, and instructs the sound generation processing means to perform sound generation processing each time the plurality of pitch designating means is operated.

The second control means is also, for example, a microprocessor and the like, and when the plurality of pitch designating means is operated and the coincidence is detected by the detecting means, the sound producing processing means is made to perform sound producing processing. Give instructions.

The selecting means selectively selects whether the first control means controls the sounding processing means or the second control means controls the sounding processing means.

The third control means controls the sound generation processing means by the first control means with respect to the selection means when the number counted by the mismatch count counting means reaches a first predetermined value. When the number counted by the coincidence counting means reaches a second predetermined value, the selecting means is selected to control the sound generation processing means by the second control means. Give instructions.

The first or second predetermined value may be an arbitrary number, for example, as described in claim 2, or, for example, as described in claim 3, depending on the complexity of the melody. It can be set automatically, and can also be set by the user, respectively.

[0018]

The operation of the means of the present invention is as follows. When the reading means sequentially reads out the pitch information indicating the pitch of the melody tone from the pitch information storage means, the pitch specifying means to be operated next corresponding to the pitch information indicating the pitch is specified by the instructing means. Instructed sequentially.

When the pitch designating means is operated in response to the instruction, the detecting means detects a match / mismatch between the pitch designating means designated by the designating means and the operated pitch designating means.

The number of coincidences is counted by the coincidence number counting means, and the number of disagreements is counted by the disagreement number counting means. When the number counted by the mismatch count counting means reaches the first predetermined value, the third control means causes the selection means to make a selection for controlling the sound generation processing means by the first control means. Give instructions. In addition, the third control means,
When the number counted by the coincidence counting means reaches the second predetermined value, the selecting means is instructed to make a selection for controlling the sound generation processing means by the second control means.

When the selection means selects the first control means, the sound generation processing means is instructed to perform sound generation processing each time the plurality of pitch designating means is operated.
When the control means is selected, a plurality of pitch designating means are operated, and the sound generation processing means is instructed to generate sound only when the matching means is detected by the detection means.

Then, the sound generation processing means performs sound generation processing in accordance with an instruction from the first control means or the second control means.
Therefore, the number of coincidences and non-coincidences between the pitch designating means designated by the designating means and the actually operated pitch designating means are counted, and when the number of coincidences reaches the first predetermined value, only when the subsequent coincidences occur. The tone generation process is performed. On the other hand, when the number of mismatches reaches the second predetermined value, the tone generation process is performed by any operation of the pitch designating means. Therefore, the simple part of the song can be played while instructing the correct pitch by the pitch designating means, and when it becomes difficult to play, the song can be interrupted while operating any pitch designating means. You can continue playing without doing.

[0023]

Embodiments of the present invention will be described below with reference to the drawings. {Configuration} FIG. 1 is a system configuration diagram of an embodiment according to the present invention.

In FIG. 1, a CPU 1 is a central processing unit (Centra) which operates according to a program stored in a program ROM 2 which is a read only memory.
l Processing Unit), which includes, for example, a microprocessor.

The performance data memory 3 is a memory for storing music data for automatic performance, which is composed of melody data and accompaniment data (consisting of patterns of chords, rhythms, basses, etc.) for the melody data,
For example, it is composed of a ROM pack or the like that can be attached to and detached from the apparatus body.
The music data stored in the performance data memory 3 is read by the CPU 1 in an ANY KEY PLAY mode or a melody guide mode described later.

Further, as shown in FIG. 2, the keyboard section 4 is "F".
Specify each pitch for each semitone in the 2.5 octave range from "2" to "C5" (these pitches are assigned scale data that are consecutive numbers in order from the lowest pitch). It has 32 keys, and outputs an ON signal when a key is pressed and an OFF signal when no key is pressed to the CPU 1 independently for each key through the key detection circuit 5. To be done.

The CPU 1 outputs a status signal (ON signal / ON signal / output from each key of the keyboard section 4 via the key pressing detection circuit 5).
The OFF signal) is sequentially scanned at a predetermined cycle, and the status (ON state / OFF state) of each key is stored in the key status storage area 8a in the working RAM 8 which is a random access memory for each scan.

Further, the switch section 6 has a PLAY mode, an AUTO mode.
Mode, melody guide mode, and ANY KEY PLAY mode, a slide-operated mode selection switch that selectively selects each mode. Depending on the number of consecutive key press operations, the melody guide mode and ANY
Automatic changeover switch to set to alternate automatically with KEY PLAY mode, "0" to "9" for selecting any one song from the maximum 10 songs stored in the performance data memory 3 The song selection switch or the like is given a song number, and the status (on / off state) of each switch is controlled by the CP through the switch detection circuit 7.
Output to U1.

Here, each of the above modes will be described. PLAY mode: a mode in which, when a key of the keyboard section 4 is pressed, a musical tone having a pitch corresponding to the pressed key is generated. AUTO mode: A mode in which the melody and the accompaniment consisting of rhythm, chord, and bass are automatically played based on the melody data and accompaniment data (rhythm, chord, bass) stored in the performance data memory 3. Melody guide mode: Based on the melody data stored in the performance data memory 3, the LED corresponding to the key to be pressed lights up to indicate the key to be pressed, and the specified key is pressed. When the key is pressed, the melody sound is sounded, the LED that has been turned on goes out, and the LED corresponding to the key to be pressed next is newly turned on. When a wrong key which is not instructed is pressed, the melody sound is not sounded. Further, if the automatic changeover switch is turned on, the ANY KEY PLAY mode is automatically switched to after a predetermined number of consecutive erroneous key pressing operations. ANY KEY PLAY mode: A melody advances one note each time a new key is pressed, regardless of whether the key is being pressed or released. Also,
If the automatic changeover switch is turned on, the melody guide mode is automatically switched to when the correct key pressing operation is continuously performed a predetermined number of times.

Further, the working RAM 8 stores various registers and flags used by the CPU 1 in the melody guide mode or the ANY KEY PLAY mode, as described later, and status of the latest key scan of each key of the keyboard section 4. It also has a key status storage area 8a, and a key status storage area 8b for storing the status of each key at the time of the previous key scan.

Further, the tone generating circuit 9 is, for example, a PCM.
It has a digital sound source such as a sound source and a CD sound source, and generates a digital tone signal in accordance with a tone control signal applied from the CPU 1. The digital tone signal generated from the tone generation circuit 9 is converted into an analog tone signal by a D / A converter (digital / analog converter) 10 and then released to the outside via an amplifier 11 and a speaker 12. Is sounded.

FIGS. 3A to 3G show the CP when the melody guide mode or the ANY KEY PLAY mode is selected.
It is a block diagram which shows the main area and register in the working RAM8 which U1 uses.

Key status storage area FIG. 3A shows a key status storage area 8a for storing the status (on / off state) obtained by the latest key scan of 32 keys provided in the keyboard section 4. It is a block diagram.

The working RAM 8 has an 8-bit structure for one word, and the key status storage area 8a has an address S.
It has a capacity of 4 words (32 bits) designated by T0, ST1, ST2, and ST3. Then, for each of the 32 bits, as shown in FIG.
The key statuses of each pitch in semitones up to "C5" are stored. In addition, "1" is set to each bit when the key is pressed, and "0" is set when the key is released.

Next, FIG. 6B is a block diagram of the key status storage area 8b for storing the statuses of the 32 keys obtained by the previous key scan. The key status storage area 8b has addresses ST'0, ST'1, ST
It has a four-word (32-bit) configuration consisting of '2 and ST'3, and its bit configuration is the same as that of the key status storage area 8a.

Scale Data Storage Area The scale data storage area Kd shown in FIG. 3C is a 1-word (8-bit) area in which the scale data read from the performance data memory 3 by the CPU 1 is stored. F2 "
~ Scale data of each pitch of "C5" is "000000"
"00" (= "F2"), "00000001"("F2#"), ...
-It is stored with the serial number of "00011111"("C5").

Mode flag MD The mode flag MD is an 8-bit register as shown in FIG. 3D, and the lower 3 bits are used as a flag. The lower 3 bits are "000 when in PLAY mode.
"(" 0 "), or" 001 "in AUTO mode
("1") is displayed as "X10" when in melody guide mode
Is set. The bit indicated by X in "X10" is set to "0" when the mode is fixed and to "1" when the mode is automatically switched. That is, the flag is "010"("2") when the melody guide mode is fixed, and "110"("6") when the automatic switching is performed.

The mode flag MD is ANY KEY PLAY.
"X11" is set in mode. Again, X
The bit indicated by is set to "0" when the mode is fixed and "1" when the mode is automatically switched. Ie AN
The flag is "011" when the Y KEY PLAY mode is fixed.
(“3”), and “111” when switching automatically
(“7”).

Counter OC The counter OC is an 8-bit counter as shown in (e) of the figure, which is initialized by resetting to "0", and in the melody guide mode, the wrong continuous key depression operation is performed. In the ANY KEY PLAY mode, the number of correct key pressing operations is counted.

Primary key register MV1 The primary key register MV1 also has an area consisting of 8 bits as shown in FIG. 6 (f), and when the automatic changeover switch is on, the mode changes from ANY KEY PLAY mode to melody guide mode. The correct number of consecutive key pressing operations for switching to is preset.

Wrong key register MV2 Wrong key register MV2 also has an area consisting of 8 bits as shown in FIG. 9 (g), and when the automatic changeover switch is on, the melody guide mode is changed to the ANY KEY PLAY mode. The number of consecutive wrong key press operations for switching is preset.

{Operation} Next, the operation of the embodiment having the above configuration will be described. General Operation First, the operation when the melody guide mode (or ANY KEY PLAY mode), which is the main part of the present invention, is selected and the automatic changeover switch is turned on will be described.

The player first selects the melody guide mode by operating the mode selection switch, and further turns on the automatic changeover switch. As a result, the keyboard 4
The LEDs arranged for each of the 32 keys of
The keys belonging to the key corresponding to the pitch of the melody tone to be sounded are sequentially turned on in accordance with the progress of the melody, and the keys corresponding to the turned-on LEDs are sequentially pressed to perform a melody performance. .

In this melody guide mode, each key of the keyboard section 4 does not function as a key for directly specifying the corresponding pitch, but as a trigger means for advancing the melody one note at a time. However, only the key corresponding to the melody sound that progresses works effectively. When a key that does not correspond to the melody tone is operated a predetermined number of times or more in succession, the mode automatically switches to the ANY KEY PLAY mode, and all 32 keys function effectively as trigger means. Therefore, even if the LED belonging to the key corresponding to the pitch of the melody sound produced in the same manner as described above is turned on, if it is difficult and difficult to press the key indicated by the turned-on LED, an arbitrary You can proceed with the performance by pressing the keys. Further, the key pressing operation indicated by the LED becomes easy, and when the correct key pressing operation is continuously performed a predetermined number of times or more, the ANY KEY PLAY mode is automatically switched to the melody guide mode.

Further, even when the ANY KEY PLAY mode is initially selected, the melody guide mode is switched by continuously performing the correct key-depressing operation a predetermined number of times in the same manner as described above. In this way, the mode is automatically switched to the ANY KEY PLAY mode when the correct key pressing operation is difficult, and to the melody guide mode when the correct key pressing operation can be easily performed.

Next, the operation of the CPU 1 which controls the melody performance in the melody guide mode or the ANY KEY PLAY mode as described above will be described. General Flow FIG. 4 is a general flowchart for explaining the overall processing performed by the CPU 1 according to the program stored in the program ROM 2.

When the power is turned on by the operation of a switch (not shown), the CPU 1 first determines the working RAM 8
All the bits in the key status storage areas 8a and 8b are cleared to "0", and the key-on / match / mismatch counter OC is cleared to "0". Furthermore, the first scale data of the melody from the performance data memory 3 is stored in the scale data storage area. Initialization processing such as storing in Kd is performed (S1).

Subsequently, the keyboard section 4 is passed through the key depression detection circuit 5.
The status of each key is sequentially scanned (scanned), and the status of each key is stored in the bit corresponding to each key in the key status storage area 8a. Further, subsequently, the state of the mode selection switch of the switch unit 6 is read out via the switch detection circuit 7. If the GUIDE switch is on, "010" is set to the mode flag MD, and if the ANY KEY PLAY mode is selected, ""011" is set in the mode flag MD, the state of the automatic changeover switch is subsequently read, and if it is on, "1" is set in the second bit of the mode flag MD. In addition, processing such as setting the song number set by operating the song select switch in a predetermined register is also performed (S2).

By the above operation, the value indicating the mode designated by the operation of each switch is set in the mode flag MD. Subsequent to the processing S2, the CPU 1 refers to the value of the mode flag MD to determine whether the melody guide mode or the ANY KEY PLAY mode is currently selected (S3).

Then, the melody guide mode or ANY KE
If the Y PLAY mode is selected, then a keyboard process described later in detail is performed (S4). Next, after performing the sound generation processing of the rhythm sound, the chord sound, the bass sound, etc. based on the accompaniment information composed of each part such as the rhythm, chord, bass, etc. stored in the performance data memory 3 (S5), again. The process returns to the key scan process S2.

In this way, the melody guide mode or AN
When the Y KEY PLAY mode is selected, the processes S2 to S5 are repeated. On the other hand, if a mode other than the melody guide mode or the ANY KEY PLAY mode is selected in the discrimination processing S3, the PLAY mode or AU
Processing corresponding to each mode of the TO mode is performed (S6). Since this processing S6 is not an essential part of the present invention, detailed description thereof will be omitted.

Keyboard Processing Next, details of the keyboard processing S4 will be described with reference to the flowchart of FIG.

The CPU 1 firstly stores the key status storage area 8
The status of the bit of each key of the key numbers "1" to "32" of a is sequentially scanned, and for each bit of "1", the status of the corresponding bit of the key status storage area 8b is "0". It is determined whether or not there is (SB1). If the corresponding bit is "0", that is, the status changes from "0" to "1", that is, if there is a newly pressed key, its number (equal to the scale data number). Whether or not coincides with the scale data of the melody stored in the scale data storage area Kd (SB
2). If they match, it is determined that the correct key whose lighting is guided by the LED is pressed, and then the value of the mode flag MD is determined (SB3).

If the value of the mode flag MD is "3" or "7", that is, if the ANY KEY PLAY mode is currently selected, the value of the mode flag MD is "7", that is, automatic switching is designated. It is determined whether or not it has been done (SB5). If automatic switching is designated, the counter OC is then incremented by "1" to count the number of consecutive correct key pressing operations (SB6). Then, it is determined whether or not the value of the counter OC matches the value preset in the primary key register MV2 (SB7), and if they do not match, the processes SB10 to SB12 to be described later are immediately performed. For example, it is determined that the correct key depression operation has been performed continuously up to the number of times that the melody guide mode can be entered, the mode flag MD is set to "6", and the melody guide mode is automatically switched (SB8). Then, the counter OC is reset to "0" (SB9), and the processes SB10 to SB12 described later are performed.

By the above operation, in the ANY KEY PLAY mode, if the automatic changeover switch is turned on and the automatic changeover to the melody guide mode is designated, the number of times of operation is counted every time a correct key depression operation is performed. Continue
When the number of consecutive correct key-depressing operations exceeds a predetermined number, the melody guide mode in which only the correct key-depressing operation is valid is automatically switched.

On the other hand, in the process SB5, the mode flag MD
If the value of is "7", that is, in the ANY KEY PLAY mode in which automatic switching is not designated, the process immediately proceeds to processing SB10 described below.

By the above operation, if the automatic switching to the melody guide mode is not specified in the ANY KEY PLAY mode, the number of continuous continuous key pressing operations of the correct key pressing operation is not counted, and the automatic switching to the melody guide mode is performed. Instead, it is fixed to ANY KEY PLAY mode.

By the way, in the process SB3, if the value of the mode flag MD is "2" or "6", that is, if the melody guide mode is currently set, the counter OC for counting the number of erroneous continuous key pressing operations is set to "0". Reset to (SB
4).

Subsequently, the scale data stored in the scale data storage area Kd is read out, and the tone generation circuit 9 is controlled so that a tone having a pitch corresponding to the read scale data is generated (SB10). The scale data next to the melody is read from the performance data memory 3 and stored in the scale data storage area Kd (SB11). Further, subsequently, the state of each bit of the key status storage area 8a is transferred to each corresponding bit of the key status storage area 8b, and all the statuses of the 32 keys obtained by this key scanning are transferred to the key status storage area. It is stored in 8b (SB12) and the flow returns to the general flow.

With the above operation, in the melody guide mode, every time a correct key depression operation (key depression of a key whose LED is lit) is performed, the number of consecutive wrong key depression operations in the melody guide mode is counted. The counter OC is reset to "0", the melody tone corresponding to the scale data stored in the key data storage area Kd is sounded,
The scale data of the next melody tone is stored in the key data storage area Kd.

On the other hand, in the process SB2, when the key number of the depressed key does not match the scale data of the melody stored in the scale data storage area Kd, that is, when the wrong key operation is performed, Next, referring to the value of the mode flag MD, it is determined whether or not the melody guide mode is currently selected (SB13). Then, the mode flag MD
If the value of "2" or "6", it is determined that the melody guide mode is currently selected, and again by determining whether the value of the mode flag MD is equal to "6",
It is determined whether the automatic changeover switch is currently on (SB15). If the value of the mode flag MD is "6" and the automatic changeover switch is on, then "1" is added to the counter OC (SB1).
6). Further, subsequently, it is determined whether or not the value of the counter OC matches the value set in the error key register MV1 (SB17), and if they do not match, the process SB is immediately executed.
12 is performed, but if they match, it is determined that the number of continuous incorrect key pressing operations has reached the number of times to switch to the ANY KEY PLAY mode in which the key pressing operation is easy, and the mode flag MD is set to "7". And switch to ANY KEY PLAY mode (SB1
8) After resetting the counter OC to "0" (SB1
9), the process SB12 is performed.

With the above operation, in the melody guide mode, when the automatic changeover switch is turned on and the automatic changeover is designated, the counter OC is set every time a wrong key is pressed.
Is incremented by 1 and erroneous consecutive key pressing operations are counted, and when the count reaches the number of erroneous consecutive key pressing operations that is the allowable limit in the melody guide mode, ANY The mode automatically switches to KEY PLAY mode.

On the other hand, in the process SB15, the mode flag M
If the value of D is not "6" (melody guide mode for which automatic switching is instructed), the process SB16 is not performed and the process immediately proceeds to the process SB12.

According to the above operation, when the automatic switching is not instructed in the melody guide mode, the melody guide mode is fixed without being switched to the ANY KEY PLAY mode no matter how many times the erroneous key pressing operation is continued. It

On the other hand, in the process SB13, the value of the mode flag MD is "3" or "7", that is, the current ANY KE.
In the Y PLAY mode, the counter OC is reset to "0" and the count of the number of consecutive correct key-press operations in the ANY KEY PLAY mode is reset (SB14). Then, the processes SB10 to SB12 are immediately performed.

With the above operation, in the ANY KEY PLAY mode, every time an erroneous key depression operation is performed, the count of the number of consecutive correct key depression operations by the counter OC is reset.

Therefore, in the ANY KEY PLAY mode, when automatic switching to the melody guide mode is designated, if an incorrect key pressing operation is performed, counting of the number of consecutive correct key pressing operations is restarted from the beginning. It

As described above, in this embodiment, when the automatic changeover switch is set to ON in the melody guide mode, the number of consecutive incorrect key pressing operations is counted, and the number of consecutive incorrect key pressing operations is predetermined. When the number of times is reached, it is easy to press the key, that is, the melody progresses even if the key is pressed incorrectly.
The mode automatically switches to ANY KEY PLAY mode. Also, ANY
In the KEY PLAY mode, when the automatic changeover switch is set to ON, the number of consecutive correct key pressing operations is counted, and when the number of consecutive correct key pressing operations reaches the predetermined number, the melody is played only when the correct key pressing operation is performed. Is automatically switched to the melody guide mode in which is progressing.

Therefore, in the melody guide mode, when a key-playing error reaches a predetermined number of times in succession due to a difficult playing point, the mode automatically switches to the ANY KEY PLAY mode. You can play continuously from a difficult place to play. And
By continuing the correct key-pressing operation a predetermined number of times or more at a position where it is easy to play, the melody guide mode is automatically switched, so that the correct key-pressing operation can be continued again.

By the way, the number of correct or erroneous continuous key depression operations set in the erroneous key number register MV1 or the correct key number register MV2 may be freely set by the user according to the difficulty level of the music. A second embodiment for realizing such setting will be described below.

In the second embodiment, the numeric keys "0" to "9" provided on the switch section 6 shown in FIG.
It also serves both as a tone color designation key for selecting a tone color and as a set value key for setting the correct or incorrect number of continuous key depression operations in the false key number register MV1 or the correct key number register MV2.

Next, referring to the flowchart of FIG.
A ten-key process for setting the correct or wrong number of continuous key-depressing operations in the erroneous key number register MV1 or the correct key number register MV2 by operating the ten key will be described. This ten-key process is performed in the initialization process S1 shown in the flowchart of FIG. 4 while waiting for a melody selection operation.

In FIG. 6, first, the mode currently set is discriminated based on the value of the mode flag MD (SC1). Then, if the mode is the melody guide mode, "1" is set in the register i (not shown) (SC2), while if the mode is the ANY KEY PALY mode, "2" is set in the register i ( SC3).
Subsequently, it is determined whether or not the music selection wait (music selection wait) state is set (SC4). If the music selection wait state is set, the numerical value designated by the ten key operation is set in the register MVi (i =
Set to 1, 2) (SC5). Next, it is determined whether or not the value of the register MVi is "0" (SC7), and if "0", that is, the number of operations is not specified, the default value "1" is set in the register MVi. , And returns to the general flow shown in FIG.

On the other hand, in the processing SC6, the register MVi
Is not "0", it is determined that the number of operations has been set in the register MVi, and the process immediately returns to the general flow shown in FIG.

If it is not in the music selection waiting state in the process SC4, it is determined that the number of operations and the selection of the melody have already been completed, and the first scale data is stored in the scale data storage area Kd. (SC8) Return to general flow.

With the above operation, the number of consecutive correct key-depression operations can be set in the register MV2 or the register MV1 by operating the ten keys in the music selection waiting state.

In the present embodiment, the number of erroneous continuous key pressing operations is counted in the melody guide mode so that a correct key pressing operation is performed before the erroneous continuous key pressing operations reach a predetermined number. When it is done, the count is set from the beginning and it is counted again,
It is also possible to accumulate and count erroneous key depression operations. This can be realized by omitting the reset process of the counter OC of the process SB4 shown in FIG.

Also in the ANY KEY PLAY mode, the correct number of consecutive key-depressing operations is counted, but the cumulative number of correct key-depressing operations may be counted, and this case is also shown in FIG. Counter OC of processing SB14
This can be realized by omitting the reset process of.

[0079]

According to the present invention, the number of correct operations and the number of incorrect operations of the instructed pitch designating means are counted, and when the correct number of operations exceeds a predetermined number, the correct pitch designating operation is performed. The melody is made to progress only when the pitch is specified, and when the number of erroneous pitch designation operations exceeds the predetermined number of times, the melody is made to progress by any pitch designation operation.
The part where the pitch specification operation is easy can be performed by the correct pitch specification operation, and the part where the pitch specification operation is difficult can be performed by any pitch specification operation. You can continue playing to the end without interruption. Moreover, since the simple portion can be played by a correct pitch designation operation, the performance can be enjoyed.

[Brief description of drawings]

FIG. 1 is a system configuration diagram of an embodiment according to the present invention.

FIG. 2 is an external view of a keyboard section.

3A to 3G are main internal configuration diagrams of a working RAM.

FIG. 4 is a general flowchart of a CPU.

FIG. 5 is a flowchart showing details of keyboard processing.

FIG. 6 is a flowchart illustrating an operation of ten-key processing.

[Explanation of symbols]

 1 CPU 2 Program ROM 3 Performance Data Memory 4 Keyboard Section 5 Key Press Detection Circuit 6 Switch Section 7 Switch Detection Circuit 8 Working RAM 9 Musical Sound Generation Circuit 10 D / A Converter (Digital / Analog Converter) 11 Amplifier 12 Speaker

Claims (5)

(57) [Claims] 1. A plurality of pitch designating means provided for designating a pitch, a pitch information storing means for storing pitch information indicating a pitch of each melody note constituting a melody, and this pitch A reading means for sequentially reading out the pitch information from the high information storage means, and a pitch designating means to be currently operated among the plurality of pitch designating means based on the musical tone information read by the reading means. Instructing means, a tone generation processing means for performing tone generation processing based on the tone pitch information read by the reading means, a tone pitch designating means instructed by the instructing means, and an operated tone pitch. Detecting means for detecting a match / mismatch with the designating means, match number counting means for counting the number of matches detected by the detecting means, and mismatch number counting means for counting the number of mismatches detected by the detecting means And the above First control means for instructing the sound generation processing means to perform sound generation processing every time the pitch specification means of the above is operated, and the plurality of pitch specification means are operated, and the coincidence is detected by the detection means. Then, the second control means for instructing the sound generation processing means to perform sound generation processing, and the sound generation processing means controlled by the first control means, or the sound generation processing by the second control means. Selecting means for controlling or selectively selecting the means, and when the number counted by the disagreement number counting means reaches a first predetermined value, the first control means performs the sound generation processing on the selecting means. When the number counted by the coincidence counting means reaches a second predetermined value, the selection control means is instructed to control the means, and the second control means controls the sound generation processing means. Electronic musical instrument and having a third control means for instructing to select and. 2. The electronic musical instrument according to claim 1, wherein the first and second predetermined values are arbitrary numbers. 3. The electronic musical instrument according to claim 1, wherein the first and second predetermined values are automatically set in accordance with the complexity of the melody. 4. The electronic musical instrument according to claim 1, wherein the first and second predetermined values are set by a user. 5. The electronic musical instrument according to claim 1, wherein the plurality of pitch designating means are a plurality of keys.