JPH0816165A - Tempo controller - Google Patents

Abstract

PURPOSE:To provide a tempo controller which sets the best tempo for a user at all times, and also properly evaluates musical performance operation by the user and reports the evaluation result. CONSTITUTION:AN electronic musical instrument 100 is equipped with a ROM 102 stored with various control programs, data for reproducing plural pieces of demonstration music, etc., a keyboard 104 which is operated by the user, and a sound source 107 which generates musical sound waveforms according to musical sound information generated by the CPU 101; and the CPU 101 measures the time of a musical performance by the user on the keyboard 104, compares the measured musical performance time with a musical performance time calculated from data for reproducing demonstration music, and controls the tempo of the reproduction of the demonstration music on the basis of the comparison result. Further, the CPU 101 evaluates the musical performance operation by the user according to the musical performance time of the user and the musical performance time calculated from the data for the reproduction and displays the evaluation result on a display device 106.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tempo control device mounted on an electronic musical instrument having an automatic performance function for automatically playing (reproducing) music.

[0002]

2. Description of the Related Art In recent years, electronic musical instruments have been equipped with various functions in association with technological advances and changes in music. As a function installed in this way, for example, there is an automatic performance function for playing the music according to the performance information (reproduction information) of the music stored in the memory or the like. The automatic performance function is roughly classified into a normal automatic performance function in which the electronic musical instrument itself simply plays a musical composition and a guide function instructing the user to perform a performance operation.

In general, among these functions in the automatic performance function, the normal automatic performance function is used when the user wants to enjoy a competition with the automatic performance, practices a song, or simply wants to listen to the automatic performance. One guide function is mainly used when the user practices.

The user is instructed to perform a performance operation by the guide function by sequentially turning on a display lamp (navigation lamp) provided corresponding to each pitch designating switch, or by voice instead of the navigation lamp. There are ways. When performing a performance by using this guide function, the user can sequentially operate the pitch designating switch according to the instruction.

When an automatic performance is performed using this guide function, some electronic musical instruments allow the user to select whether or not to emit a sound in the automatic performance, or to turn off only the melody. Some have become. As described above, the automatic performance function has a plurality of modes, and the user can perform a desired performance according to each mode.

By the way, in addition to the automatic performance function, the electronic musical instrument is usually equipped with a tempo adjustment function (tempo control device) for adjusting the tempo of the automatic performance and the automatic accompaniment. This tempo control device causes an electronic musical instrument to perform an automatic performance or the like at a tempo designated by a user with a switch or the like. With this tempo control device, the user can adjust the tempo of the automatic performance according to his / her ability, the skill level of the music to be played, etc., so that the user can enjoy the competition with the automatic performance at a desired tempo. You can practice music.

[0007]

However, the tempo control device mounted on the electronic musical instrument having the conventional automatic performance function as described above has a tempo for automatic performance (when the guide function is used, according to the user's designation. However, there is a problem that the user must always perform at the same tempo regardless of the strengths and weaknesses of the user.

[0008] Even in one piece of music, the difficulty level of the performance is different for each part, and even users of the same difficulty level have different strengths and weaknesses. Therefore, if the tempo is always the same, the user must perform in accordance with the tempo regardless of the strengths and weaknesses.

Since the user's playing technique using the guide function is usually not very expensive, there is not enough room to play, especially when the tempo of the automatic playing is fast for the user, so that an operation error is likely to occur. , The practice efficiency will be significantly reduced.

In the conventional tempo control device, the tempo can be changed even during the automatic performance, but a switch for changing the tempo is provided at a position apart from the pitch designating switch group. In many cases, changing the tempo during a performance requires a quick operation, and since the operation with the pitch specification switch must be performed concurrently, the whole operation becomes very complicated. There is a point.

Further, in the conventional tempo control device, it is difficult for the user to recognize the difference between the tempo of his performance and the actual tempo of the music being played. Was very difficult.

An object of the present invention is to provide a tempo control device that always sets an optimal tempo for the user, and to provide a tempo control device that appropriately evaluates a performance operation performed by the user and notifies it. is there.

[0013]

An electronic musical instrument equipped with a tempo control device according to the present invention has a pitch designating switch group for designating a pitch of a musical tone generated by a musical tone generating means and a pitch designating switch group. An operation detection unit that detects an operation performed by a user, a storage unit that stores performance information of a piece of music, and a pitch of a pitch designating switch that the operation detection unit detects an operation form a piece of music that is stored in the storage unit. A pitch comparing means for comparing the pitches in the order of the musical tone to be played, and an automatic playing means for automatically playing the music stored in the storing means according to the comparison result of the pitch comparing means.

According to another aspect of the tempo control device of the present invention, which is mounted on the electronic musical instrument, the pitch of the pitch designating switch whose operation is detected by the operation detecting means corresponds to the tone of the musical tone stored in the storing means. A time measuring means for measuring the time elapsed after the pitch comparing means compares it with the pitch, and a playing time calculating means for calculating the playing time of the user by accumulating the time measured by the time measuring means; Based on the comparison result of the performance time comparison means for comparing the performance time of the user calculated by the performance time calculation means with the performance time calculated from the performance information of the music stored in the storage means, and the performance time comparison means. The automatic performance means is provided with a control means for controlling the tempo at which the music is automatically played.

Further, in the tempo control device according to claim 2 mounted on the electronic musical instrument, the pitch of the pitch designating switch whose operation is detected by the operation detecting means corresponds to a musical tone stored in the storage means. Is equal to the pitch, the time measuring means for measuring the time elapsed after the pitch comparing means compares the performance time, and the playing time calculating means for calculating the playing time of the user by accumulating the time measured by the time measuring means. And the comparison result of the performance time comparison means for comparing the performance time of the user calculated by the performance time calculation means with the performance time calculated from the performance information of the music stored in the storage means, and the comparison result of the performance time comparison means. Evaluation means for evaluating the performance operation of the user based on
And a notification means for notifying the user of the evaluation result of the evaluation means.

In addition to the structure of the tempo control device according to claim 2, the tempo control device according to claim 3 controls the tempo at which the automatic performance device automatically performs the music based on the comparison result of the performance time comparison device. It is equipped with a control means.

[0017]

The tempo control device according to claim 1 of the present invention is
Control for comparing the user's playing time required when the demo song performance operation is performed accurately with the regular playing time calculated from the performance information of the demo song, and changing the tempo of the demo song based on the comparison result. I do.

As a result, the performance of the demo song and the instruction of the performance operation to the user are changed to the tempo suitable for the user's ability. Further, the tempo control device according to claim 2 of the present invention evaluates the performance operation of the user based on the result of comparison between the performance time of the user and the performance time calculated from the performance information of the demo song, and the evaluation result is evaluated by the user. To notify.

As a result, the user is given a training result and a specific goal, and the user's motivation for training is improved. A tempo control device according to a third aspect of the present invention performs an operation that combines the tempo control devices according to the first and second aspects.

The evaluation of the user's performance operation is calculated, for example, from the following relational expression. P = 100 (1− (T−Z) ÷ (α · Z)) where T: user's performance time calculated by the performance time calculation means Z: performance time calculated from performance information α: constant P: evaluation result By changing the value of the constant α in the relational expression, the evaluation standard for the performance operation of the user can be adjusted according to the level of the user.

[0021]

Embodiments of the present invention will now be described in detail in the order of the first embodiment, the second embodiment, and the third embodiment with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an electronic musical instrument 100 equipped with a tempo control device according to the first embodiment. As shown in FIG. 1, an electronic musical instrument 100 includes a CPU (Central Processor Unit) 10 that executes control of the entire musical instrument.
1 and various control programs, a plurality of demo songs (the contents of which will be described later), a ROM storing sound data for generating musical tone waveforms such as envelope level and pitch
(Read Only Memory) 102, RAM (Random Access Memory) 103 mainly used as a work area, keyboard 104 operated by a user, and a switch including various switches for designating various modes, tempo, timbre, etc. A group 105, a display device 106 for displaying according to an instruction of the CPU 101, a sound source 107 for generating a musical tone waveform (signal) according to an instruction of the CPU 101, and a D for converting a musical tone signal output from the sound source 107 as a digital signal into an analog signal. The A / A converter 108 and a sound system 109 which emits a musical sound by an analog signal output from the D / A converter 108.

Although not shown in FIG. 1, the switch group 105 is a switch for setting a demo mode for instructing a user to perform a performance of a demo song (hereinafter, this switch is referred to as a demo button). , A number key for designating a demo song, and a switch (described later) for instructing start and end of the demo mode. In addition, the display device 1
06 is roughly configured by a display unit and a display control unit that controls the display unit. The display has a keyboard 10
There are a navigation lamp provided corresponding to each key of No. 4 for instructing the user to perform a performance, a display for displaying the evaluation result of the performance performed by the user when the demo mode is set, and the like.

In the above configuration, the schematic operation will be described by taking the case where the demo mode is set as an example. When the user operates the demo switch of the switch group 105, C
The PU 101 sets the demo mode according to the operation.
In the present embodiment, a plurality of demo songs are stored in the ROM 102, and when the user designates the demo mode, he or she subsequently designates the demo songs by the number keys.

FIG. 2 shows a play (PLAY) in an electronic musical instrument.
FIG. 3 is an explanatory diagram showing an arrangement of a switch 201 and a stop (STOP) switch 202. The play switch 201 is a switch for instructing the start of performance (reproduction) of the demo song, and the stop switch 202 is a switch for instructing to stop the performance of the demo song. These switches 201 and 202 are respectively connected to the "PLA
Printing is performed on the surface of "Y" and "STOP".
When the user specifies a demo song, the CPU 101
It waits for the user to operate (turn on) the play switch 201.

Here, the demo music stored in the ROM 102 will be specifically described with reference to FIGS. 3 (a) and 3 (b). FIG. 3A is a score showing an example of a demo song, and FIG. 3B is a state (format) in which performance data (playback data) of this demo song is stored in the ROM 102.
FIG.

The demo song shown in FIG. 3A has a tempo of 1
Twenty, the beat is 4/4, and the pitch is C4, 8 with eighth notes
It shows that musical tones are sounded in the order of a quarter note with a pitch of E4, an eighth note with a pitch of G4, a second note with a pitch of C4, E4, and G4. The symbol immediately after the half note is 8
Since it is a minute rest, this score shows that a temporary tone is not pronounced after a tone sounded with a half note.

FIG. 3B shows the reproduction data of the demo song shown in FIG. The demo song playback data is roughly divided into demo data that is the basis for playing the demo song and musical tone data that is used to pronounce the musical tones that make up the demo song. ) Command and END command are stored between the stored addresses. The start command and the end command are control codes indicating the range in which the reproduction data of the demo song is stored.

In FIG. 3B, as demo data, there are tempo, beat, resolution of 1 beat (note length / unit note length per night), and tone color, each value being "120",
These are “4/4”, “48”, and “00”. Electronic musical instrument 10
"0" designates a timbre by a code (number) (this designation is also made by the number key), and "00" of the timbre indicates that a musical tone is produced with the timbre assigned to this number. .

One of the musical tone data is data for producing the musical tones in the order of pronunciation of the musical tones in the demo song.
Specifically, for each step number corresponding to the order in which the musical tones are pronounced, the pitch, the time during which the musical tones are pronounced (gate time), the time until the next step number is advanced (step time), and the musical tone. Stored is data indicating the strength of pronunciation.

The above step time and gate time are both times represented by the number of unit note lengths. For example,
An example of the eighth note written at the beginning of the score of FIG. 3A will be described below.

This eighth note corresponds to step number 1. Since an eighth note has 1/2 beat, this is expressed as the number of unit lengths, 1 / 2.48 (resolution of 1 beat)
= 24. Gate time at step number 1 is 21
Therefore, 7/8 of the total step time (= 21/2
It can be seen that musical tones are produced during period 4).

The strength of producing a musical tone is, for example, 1 to 127.
The strength (volume) of the musical tone is designated by using the value of the stage for the volume curve preset with the precision of the stage as data. Therefore, at this time, the musical tone is emitted with the strength corresponding to "80" of the volume curve.

As described above, step number 1 stores tone data for producing a tone. Note that musical tone data is similarly stored at other step numbers.

When a normal automatic performance (reproduction of a demo song) is performed by using the demo song reproduction data stored in the ROM 102 in this way, the CPU 101 sets conditions for automatic performance in accordance with the demo data, and steps The automatic performance is executed by sequentially reading out musical tone data in the order of numbers and generating musical tones.

When the demo mode is set as the automatic performance, the details will be described later, but the CPU 101 turns on the navigation lamp according to the musical tone data, and the user presses the key corresponding to the turned-on navigation lamp. Performance time (hereinafter referred to as actual performance time) is compared with performance time calculated from performance data (hereinafter referred to as true performance time), and the tempo (this is pressed by the user according to the comparison result) Change the key speed as well).

When the user's performance ends, the true performance time corresponding to the performance is calculated from the reproduction data, and the true performance time and the actual performance time are compared to evaluate the performance operation of the user, The evaluation result is displayed on the display device 106. This automatic performance ends when the CPU 101 reads an end command indicating the end of the reproduction data or the user operates the stop switch 202.

Further, the CPU 101 generates musical tone information for producing a musical tone at a pitch designated by the user pressing a key. The musical tone information includes, for example, pitch data corresponding to the pitch of the depressed key, chord data designating a tone color, musical tone control data for adding various acoustic effects, and the like. Further, when the automatic performance mode is set, the CPU 101 generates musical tone information by using the demo song reproduction data read from the ROM 102. The generated tone information is stored in the CPU (not shown).
It is stored in the tone generation channel area of the RAM inside 101.

The sound source 107 is, for example, a PCM sound source,
Based on the musical tone information generated by the CPU 101, waveform data stored in a waveform ROM (not shown) is read out, and the read waveform data is processed according to the musical tone information to generate a musical tone waveform. The waveform is output to the D / A converter 108 as a digital signal.

The D / A converter 108 converts the musical tone waveform digital signal output from the sound source 107 into an analog signal and outputs the analog signal to the sound system 109. The sound system 109 is composed of, for example, an aperture circuit, a low-pass filter, an amplifier, and a speaker. The aperture circuit extracts only a stable portion of the analog signal output from the D / A converter 108, and outputs the extracted analog signal. A high-frequency component contained in the low-pass filter is removed, an analog signal output by the low-pass filter is amplified by an amplifier, and the amplified analog signal is input to a speaker to emit a musical sound.

The above is the outline of the operation of the first embodiment. Next, the operation of the CPU 101 in the demo mode will be described in detail with reference to FIGS. 4 to 6
4 is a flowchart showing a demo song reproduction process according to the first embodiment. This demo song reproduction process is executed by turning on the play switch 201 after the demo mode is set.

When the play switch 201 is turned on, first, the demo song in the demo (DEMO) mode is reproduced by reading the start command stored at the head address of the reproduction data of the demo song which is already designated by the user. Start (S401). When the reproduction of the demo song is started, next, various variables stored in the RAM 103 (see FIG. 1) are set, and some of the various variables are initialized (S402). By the process of step S402, "0" is initialized to the variables S, S ', and T', respectively.
Also, variables X, X ', Y, Z, and Z'are set.

When the setting of various variables is completed, the demo data is read next, and the variables X,
And X ′ are set to the tempo value, and the variable Y is set to the value of the resolution (S403). When the setting of the demo data to each variable is completed, the timer T for measuring the actual time taken by the user next is set to 0 and then the hardware counter (not shown) is caused to start counting (S404). , The tone data of the next step number is read (S405).

The step number at which the tone data is read in the processing of step S405 is equal to the number of times of execution of step S405. Therefore, when step S405 is executed for the first time, the data of step number 1 is read. . In addition, the timer T is a variable on the RAM 103 (see FIG. 1) that is incremented based on an interrupt from the hardware (not shown) at regular intervals.

When the musical tone data of the next step number is read, it is determined whether the read data is an end command, that is, whether the reproduction of the demo song is finished (S40).
6). If the read data is determined to be an end command, the process proceeds to step S419, which will be described later. Conversely, if it is determined that the read data is not an end command, details are omitted, but a musical tone is generated according to the read musical tone data. The pronunciation process of is started (S40
7).

When the tone generation processing is started, the step time of the next read musical tone data is added to the variable S (S40).
8). This variable S is for accumulating the step time of each step number, and the accumulation of the step time is performed until the user satisfies the performance condition described later. When the step time is added to the variable S, the pitch data is displayed by turning on the key navigation lamp corresponding to the pitch data of the next read musical sound data (S40
9), the accumulated step time stored in the variable S is converted into time data, and this is stored in the variable Z (S410).

The conversion into the time data is performed by the following equation (1).

[0048]

## EQU1 ## Z = (S ÷ Y) · (60 ÷ X) where S: cumulative step time (value stored in variable S) Y: 1-beat resolution (value stored in variable Y) X : Tempo value currently set (value stored in variable X) Z: Time data (value stored in variable Z) Here, supplementary explanation of the equation 1 (S / Y) is the accumulated step time Is divided by the resolution of 1 beat to represent the number of beats, and (60 ÷ X) represents the time length per beat because 1 minute (60 seconds) is divided by the tempo value. Therefore, if the equation 1 is expressed in terms of dimensions, it becomes the number of beats / time per beat, and it is understood that the accumulated step time is converted into time data representing the time length.

In the first embodiment, the navigation lamp is not turned off until the user presses the key whose navigation lamp is lit. However, since the step time of each step number is accumulated in the variable S,
The time data represents a performance time (hereinafter referred to as a true performance time) when the user performs a performance at the set tempo.

After converting the accumulated step time into time data, it is next determined whether or not the stop switch (STOPSw) 202 is turned on (ON), that is, whether or not the user has instructed the end of the reproduction of the demo song. S411). If it is determined that the stop switch 202 has been turned on, that is, if the user has instructed the end of the demo song, step S419
If it is determined that the stop switch 202 is not turned on, that is, if the user has not instructed the end of the reproduction of the demo song, to determine the pressed state of the keyboard 104. Read the key depression information (S
412). The CPU 101 reads the key depression information by scanning the keyboard 104.

When the reading of the key depression information is completed, it is determined whether the pitch of the key determined to be depressed by the read key depression information matches the pitch designated by the pitch data of the current step number. It is determined whether or not (S413). If it is determined that the pitches of the two do not match, the process returns to step S411 and the subsequent processes are repeated, and if it is determined that the pitches of the two match, then the tone generation process of the current step number is performed. Is finished, that is, whether the time represented by the step time has elapsed since the sound generation processing of step S407 was started (S414).

If it is judged that the sounding process of the current step number is not completed, that is, if it is judged that the time represented by the step time has not elapsed since the sounding process was started,
Next, it is determined whether the stop switch 202 is turned on (S415). If it is determined that the stop switch 202 is not turned on, the process returns to step S414,
On the contrary, if it is determined that the stop switch 202 is turned on, the process proceeds to step S419.

In step S414, when it is determined that the sounding process of the current step number is completed, that is, when the time represented by the step time has elapsed since the start of the sounding process, the timer T is measured next. It is determined whether the value is greater than or equal to the value of the variable Z multiplied by 1.5 (S416).

As described above, the variable Z stores the true performance time, and the timer T stores the actual performance time. In this step S416, it is determined whether or not the current tempo value is too fast for the user by determining whether or not the user needs more than 1.5 times the true performance time to perform. is there. Step S4
The condition of this judgment made in 16 is the above-mentioned performance condition of the user.

The value measured by the timer T is 1.
If it is determined that it is not greater than or equal to the value multiplied by 5, step S4
The processing returns to the processing of 05 and continues the processing thereafter. On the contrary, if it is determined that the value measured by the timer T is equal to or more than the value of the variable Z multiplied by 1.5, that is, if the currently set tempo value is too fast for the user, the currently set tempo value is set. After resetting the tempo value to 90% of the value (S417), adding the value of the variable S to the variable S ', setting 0 to the variable S, and adding the value of the timer T to the variable T'. (S418), the process returns to step S404. After the timer T is set to 0 in step S404, the timer T starts counting again.

The variable S and the timer T are reset when the performance condition that the actual performance time is 1.5 times longer than the true performance time is satisfied, and the values stored in them until then are It is added to the variable S ′ and the variable T ′, respectively. That is, the variable S and the timer T store the accumulated step time from the satisfaction of the performance condition to the satisfaction of the performance condition again and the actual performance time, respectively, and when the performance condition is satisfied, the stored values are Variable S'and variable T ', respectively
Is added to. Therefore, the variable S'accumulates all the step times from the start of the reproduction of the demo song, and the variable T'stores the total actual performance time since the user started the performance. It will be.

Next, the processing after step S419 will be described. This step S419 is step S40.
When it is determined that the end command is read in 6 or when it is determined that the stop switch 202 is turned on in steps S411 and S415, the process to be executed next is performed.

In step S419, processing for stopping the timer T is executed. When the timer T is stopped, the demo song is stopped (S420), the value currently stored in the variable S is added to the variable S ′, and the value of the timer T is added to the variable T ′ (S421). When the addition to the variable S ′ and the variable T ′ is completed, the value stored in the variable S ′ is then converted into time data and stored in the variable Z ′ (S42).
2). The conversion of the value of this variable S ′ into time data is performed by the following equation (2).

[0059]

[Formula 2] Z ′ = (S ′ ÷ Y) · (60 ÷ X ′) where S ′: total accumulated step time (value stored in variable S ′) Y: resolution of 1 beat (in variable Y) Stored value) X ': Initial value of tempo value (value stored in variable X') Z ': Total true playing time (value stored in variable Z') , (S '÷ Y)
Is 1 for the accumulated step time of all the parts that played the demo song
Since it is divided by the beat resolution, it represents the number of beats in all of this part, and (60 ÷ X ') is one minute (60 seconds) divided by the initial tempo value, so it is the regular value per beat. It represents the length of time. Therefore, the equation 2 is used to calculate the total true playing time required when all the reproduced parts of the demo song are played at the initial tempo values.

When the conversion of the value of the variable S'to the time data is completed, the score P of the performance operation by the user is calculated from the time data (stored in the variable Z ') and the value of the variable T'. (S423), the calculated score P is displayed on the display device 1
It is displayed in 06 (S424), and a series of processing is ended.

The above-mentioned calculation of the score P is performed by the following formula (3).

[0062]

## EQU00003 ## P = 100 (1- (T'-Z ') / (. Alpha..Z')) where T ': Total actual performance time (value stored in variable T') Z ': Total true performance Time (value stored in variable Z ′) α: constant As is clear from the equation, the score P becomes lower according to the size of the difference between the total real performance time and the total true performance time. ing. For example, if the value of α is 0.5, the total true performance time is 40 (seconds), and the total real performance time is 40 (seconds), the score P is 100, and the total true performance time is 40 (seconds). When the time is 60 (seconds), the score P becomes 0. Also, the total true performance time is 40 (seconds) and the total real performance time is 45.
If it is (seconds), the score P is 75.

As described above, in the first embodiment, the actual performance time and the true performance time are compared at any time to constantly determine whether or not the current tempo value is too fast for the user, and according to the result of this determination. The tempo value is newly set. Therefore, the user can perform at a tempo according to his ability and the skill level of the demo song, and can improve the practice efficiency. In addition, the user does not need to adjust the tempo himself during the performance, and can concentrate on the performance easily, which improves the practice efficiency.

In the demo mode of the first embodiment, the demo song is reproduced by the user pressing the key of the lit navigation lamp. Therefore, the user can play the tempo of the performance and the actual tempo. It will be difficult to recognize the difference. However, by evaluating the difference in tempo between the two by comparing the playing times and notifying the evaluation result, the user can objectively confirm the practice result and grasp his / her ability. The user can increase the exercise motivation by setting the notified evaluation result as a specific target, and thus can further improve the practice efficiency.

Since the score P is calculated by the above equation 3, the score P which is the calculation result is calculated according to the value of the constant α.
Also changes. That is, the smaller the value of the constant α, the lower the score P is likely to be, and the larger the value of the constant α is, the higher the score P is likely to be. From this, by arbitrarily changing the value of the constant α, the user can more accurately grasp his / her ability according to the level.

Next, the second embodiment will be described. The second embodiment is mounted on the electronic musical instrument 100 shown in FIG. Therefore, the reference numeral of the electronic musical instrument 100 is used as it is, and only the difference from the first embodiment will be described.

In the first embodiment, if the user satisfies the playing condition even once, the tempo of the demo song will be reset at that point. Since a general user is inevitably unsuccessful in playing, if the tempo is reset as soon as the playing condition is satisfied, as in the first embodiment, the user's ability becomes a tempo value slower than an appropriate value. It is thought that it will be easier to set. When the tempo value is reset in this way, the user must perform at this slow tempo value unless he / she corrects the tempo value himself / herself. The second embodiment avoids this problem.

Most of the demo song reproduction processing according to the second embodiment is the same as the demo song reproduction processing according to the first embodiment. Therefore, only the changes from the demo song reproduction processing according to the first embodiment will be described. FIG. 7 is a flowchart showing the demo song reproduction processing according to the second embodiment, which extracts only the changes from the demo song reproduction processing according to the first embodiment. The changes will be described with reference to FIG.

When the play switch 201 is turned on and the processing of step S401 is completed, the variables S, S ', E
And T ′ are initialized to “0” respectively, and the variables X,
X ', Y, Z, and Z'are set (S701). When each variable is set, the process proceeds to step S403, and the subsequent processes are continued as in the first embodiment.

In the process of step S701, "0" is set.
E is newly added as a variable initialized to.
This variable E is for counting the number of times the performance condition is satisfied, as will be described later.

The second embodiment differs from the first embodiment in the processing from step S417 to connector number 4 in addition to the points described above. Next, processing of this different point will be described.

If it is determined in step S416 that the value measured by the timer T is equal to or greater than the value of the variable Z multiplied by 1.5, that is, if the currently set tempo value is too fast for the user, then The variable E is incremented (S702). When the variable E is incremented, it is then determined whether or not the value of the variable E is 5 (S703), and when it is determined that the value of the variable E is not 5, the process returns to step S405 and conversely the value of the variable E is 5. Then, the tempo value is reset to 90% of the currently set tempo value (S704), the value of the variable S is added to the variable S ′, and then 0 is set to the variables S and E. At the same time, the value of the timer T is added to the variable T ′ (S705), and the process returns to step S404.

In step S703, the value of the variable E is 5
It is when the user satisfies the performance condition five times. As described above, by resetting the tempo value in consideration of the number of times the user satisfies the playing condition, it is possible to flexibly deal with the careless mistake of the user. Then, the demo song can be played at a more appropriate tempo value for the user.

Next, the third embodiment will be described. Like the second embodiment, the third embodiment is mounted on the electronic musical instrument 100 shown in FIG. Therefore, the reference numeral of the electronic musical instrument 100 is used as it is, and only the difference from the first embodiment will be described.

In the first and second embodiments, the tempo value of the demo song is reset only to the slower (smaller) one when the user satisfies the performance condition. It may be assumed that the player is not good at playing only and is good at playing other parts. In this case, the user has to play the part that he is good at at a slow tempo, but if the demo song is played back at a slower tempo than is necessary, the user may feel frustrated or feel that the tempo is too slow to concentrate on the performance. It is possible to give it to. The third embodiment avoids this problem.

Most of the demo song reproduction processing according to the third embodiment is the same as the demo song reproduction processing according to the first embodiment. Therefore, only the changes from the demo song reproduction processing according to the first embodiment will be described. 8 and 9
6 is a flowchart showing a demo song reproduction process according to a third embodiment, which extracts only the changes from the demo song reproduction process according to the first embodiment. The changes will be described with reference to FIG.

When the play switch 201 is turned on and the processing of step S401 is completed, the variables S, S ', and Q are next.
And T ′ are initialized to “0” respectively, and the variables X,
X ', Y, Z, and Z'are set (S801). When each variable is set, the process proceeds to step S403, and the subsequent processes are continued as in the first embodiment.

In the process of step S801, "0" is set.
Q is newly added as a variable to be initialized.
As will be described later, the variable Q is for counting the number of times the keyboard 104 has been operated without satisfying the playing conditions.

The second change from the first embodiment in the third embodiment is that the connector number 4 from step S417.
It is a process between. Next, processing of this change will be described.

If it is determined in step S416 that the value measured by the timer T is equal to or greater than the value of the variable Z multiplied by 1.5, that is, if it is determined that the currently set tempo value is too fast for the user, Reset the tempo value to 90% of the currently set tempo value (S8
02), after adding the value of the variable S to the variable S ′, 0 is set to the variables S and Q, the value of the timer T is added to the variable T ′ (S803), and the process returns to step S404.

The third change from the first embodiment in the third embodiment is that the value measured by the timer T in step S416 is judged to be less than the value of the variable Z multiplied by 1.5. This is a process that is inserted between connector numbers 3 later. Next, processing of this change will be described.

If it is determined in step S416 that the value measured by the timer T is less than the value of the variable Z multiplied by 1.5, then the value of the variable Q is incremented (S80).
4) When the value of the variable Q is incremented, this variable Q
It is determined whether the value of is 7 (S805). The value of variable Q is 7
If not, the process returns to the process of step S405 to continue the subsequent processes, and conversely, if it is determined that the value of the variable Q is 7, the tempo value currently set is multiplied by 1.1 to obtain the tempo value. At the same time as resetting, the reset tempo value is set in the variable X (S806). This step S80
By executing step 6, the demo song will be played back at a faster tempo than before.

When the resetting of the tempo value is completed, it is next determined whether or not the resetting tempo value is larger than the initial value of the tempo value set in the variable X '(S807). When it is determined that the reset tempo value is larger than the initial value, the initial value is set as the tempo value again (S808), the value of the variable S is added to the variable S ′, and then the variables S and Q are added. Is set to 0, the value of the timer T is added to the variable T '(S809), and the process returns to step S404. If it is determined in step S807 that the reset tempo value is less than or equal to the initial value, then the process of step S809 is executed.

As described above, in the third embodiment, the tempo value is reset later each time the user satisfies the performance condition.
By pressing the key a predetermined number of times (7 times in the third embodiment) without satisfying the performance condition, the tempo value is quickly reset. For this reason, the user can always perform at the optimal tempo, not limited to the strengths and weaknesses of the music to be played.

As described above, the method of resetting the tempo value and evaluating the user's performance in this embodiment (first to third embodiments) is to compare the actual performance time and the true performance time. In addition to this method, various methods such as the timing when the key is pressed and the time when the key is pressed can be considered. However, since the actual performance time is the time required for the user to perform the demo song accurately, it reflects the entire performance operation performed by the user. Therefore, this method alone can set the optimum tempo value for the user and properly evaluate the performance operation performed by the user. Further, since the tempo value can be set to an optimum value by comparing the real performance time with the true performance time, there is an effect that the processing load for this can be suppressed.

In the second and third embodiments, the tempo value is reset by continuously counting the number of times the performance condition is satisfied and the number of times the performance is performed without the performance condition being satisfied. Alternatively, the tempo value may be reset depending on the number of times after the performance of the demo song is started and the number of times within a predetermined time.

The time data set in the variable Z'used in the calculation of the score P is calculated by using the tempo value (initial value) of the demo data. In general electronic musical instruments, the user can arbitrarily change the tempo value at which the demo song is played. However, the tempo value can be changed not only by considering one's own ability, but also by changing the tempo value according to the type of demo song. It may be changed if desired. For this reason, the time data may be calculated using the tempo value set before the reproduction of the demo song as the initial value.

In the demo mode of the present embodiment, the navigation lamp is used to instruct the user to perform a performance operation. The pitches of the pitch designating switches operated by the user are set in the order of the musical tones constituting the demo song. If the electronic musical instrument reproduces the demo song by comparing with the high pitch, the present invention is installed regardless of whether or not the electronic musical instrument has a function of instructing the user to perform.
Can be applied.

[0089]

As described above, according to the tempo control device of the present invention, the playing time of the user required when the performance operation of the demo song is accurately performed is calculated based on the reproduction information of the demo song. Since the tempo of the demo song is controlled based on the comparison result with respect to the time, the user can perform the demo song at a tempo suitable for his ability and can practice efficiently. .

Further, the tempo control device of the present invention evaluates the performance operation of the user based on the result of comparison between the performance time of the user and the performance time calculated from the reproduction information of the demo song, and the evaluation result is evaluated by the user. Since the notification is given to the user, the user can objectively and accurately grasp the practice result (self ability), and can have a specific goal.

As a result, it is possible to give the user a specific goal in the future practice, and it is possible to improve the user's willingness to practice.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an electronic musical instrument equipped with a first embodiment.

FIG. 2 is an explanatory diagram showing an arrangement of switches in an electronic musical instrument.

FIG. 3A is an explanatory diagram (a) showing an example of a musical score of a demo song, and an explanatory diagram showing a state of reproduction data of the demo song stored in a ROM.

FIG. 4 is a flowchart showing a demo song reproduction process according to the first embodiment (No. 1).

FIG. 5 is a flowchart showing a demo song reproduction process according to the first embodiment (No. 2).

FIG. 6 is a flowchart showing a demo song reproduction process according to the first embodiment (part 3).

FIG. 7 is a flowchart showing a demo song reproduction process according to the second embodiment (excerpting only the changes from the first embodiment).

FIG. 8 is a flowchart showing a demo song reproduction process according to a third embodiment (excerpts of only changes from the first embodiment: part 1).

FIG. 9 is a flowchart showing a demo song reproduction process according to a third embodiment (excerpts of only changes from the first embodiment: part 2).

[Explanation of symbols]

 100 electronic musical instrument 101 CPU 102 ROM 103 RAM 104 keyboard 105 switch group 106 display device 107 sound source 108 D / A converter 109 sound system

Claims (4)

[Claims] 1. A pitch designating switch group for designating a pitch of a musical tone generated by the musical tone generating means, an operation detecting means for detecting an operation performed by the user on the pitch designating switch group, and a performance of a musical composition. Storage means for storing information, and pitch comparison means for comparing the pitches of the pitch designating switch whose operation is detected by the operation detecting means with the pitches in the order of musical tones constituting the music stored in the storage means. A tempo control device mounted on an electronic musical instrument, comprising: an automatic playing means for automatically playing the music stored in the storage means according to a comparison result of the pitch comparing means, wherein the operation detecting means A time measuring means for measuring the time elapsed after the pitch comparing means compares that the pitch of the detected pitch designating switch is equal to the pitch of the corresponding musical tone of the music stored in the storage means; The time measurement And playing time calculating means for calculating a play time of the user by accumulating the time stage is measured, the playing time of the user the playing time calculation means has calculated,
Based on the comparison result of the performance time comparison means for making a comparison with the performance time calculated from the performance information of the music stored in the storage means, the automatic performance means automatically performs the music. A tempo control device comprising: a control means for controlling the tempo. 2. A tone pitch designating switch group for designating the pitch of a musical tone generated by the musical tone generating means, an operation detecting means for detecting an operation performed by the user on the tone pitch specifying switch group, and a musical composition performance. Storage means for storing information, and pitch comparison means for comparing the pitches of the pitch designating switch whose operation is detected by the operation detecting means with the pitches in the order of musical tones constituting the music stored in the storage means. A tempo control device mounted on an electronic musical instrument, comprising: an automatic playing means for automatically playing the music stored in the storage means according to a comparison result of the pitch comparing means, wherein the operation detecting means A time measuring means for measuring the time elapsed after the pitch comparing means compares that the pitch of the detected pitch designating switch is equal to the pitch of the corresponding musical tone of the music stored in the storage means; The time measurement And playing time calculating means for calculating a play time of the user by accumulating the time stage is measured, the playing time of the user the playing time calculation means has calculated,
A playing time comparing means for making a comparison with the playing time calculated from the playing information of the music stored in the storage means; and an evaluating means for evaluating the playing operation of the user based on the comparison result of the playing time comparing means, A tempo control device comprising: a notification unit for notifying a user of the evaluation result of the evaluation unit. 3. The tempo control device according to claim 2, further comprising control means for controlling the tempo at which the music playing means plays the music based on the comparison result of the playing time comparing means. And tempo control device. 4. The evaluation means: P = 100 (1− (T−Z) ÷ (α · Z)) where T: performance time of user calculated by performance time calculation means Z: calculated from performance information Performance time α: Constant P: Evaluation result: The tempo control device according to claim 1 or 2, wherein the performance operation of the user is evaluated using the above relational expression.