JP2016143028A - Control device, program, and electronic musical instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve operability of performance with a scale arbitrarily selected from among a plurality of scales.SOLUTION: In an electronic musical instrument 100, a performance operation element 140 receives performance operation by a plurality of operation elements arranged in order of pitch; a scale selection part 132 selects one scale from among a plurality of scales registered in advance in a scale information storage part 131; a pitch allocation part 133 allocates each pitch forming the scale selected by the scale selection part 132 to each operation element forming the performance operation element 140 in an octave unit; and a display control part 137 displays the range of an operation element among the plurality of operation elements forming the performance operation element 140 where the one-octave pitch is allocated on or near the operation element.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a control device for controlling a performance operation receiving device, a program for causing a computer to function as such a control device, and an electronic musical instrument.

2. Description of the Related Art Conventionally, electronic musical instruments that can be played by switching a plurality of average temperament scales are known.
For example, Patent Literature 1 discloses a keyboard instrument in which 19 keys per octave are formed in three rows and the 12 equal temperament and 19 equal temperament can be switched. In this keyboard instrument, when performing with 12 equal temperament, the performer performs with 19 equal temperament using the white and black keys of the conventional 12 equal temperament keyboard in the two rows ahead. In addition to that, I play with 7 keys in the back row.
Patent Document 2 discloses an electronic musical instrument in which an electronic signal of each pitch of the X-tone average temperament scale calculated by dividing an octave frequency range equally by an arbitrary quantity is recorded in advance.

Japanese Patent Laid-Open No. 7-20871 JP-A-9-269784

However, the keyboard instrument described in Patent Document 1 has a problem that the keyboard structure is specialized for switching between the 12 equal temperament and the 19 equal temperament, and that it is difficult to perform in accordance with other average temperament scales.
Further, in Patent Document 2, an operator for accepting a performance operation is not specifically disclosed, and it is unclear how to perform a performance according to an arbitrarily selected X-tone average temperament scale.
An object of the present invention is to solve such problems and to perform with good operability when performing with a scale arbitrarily selected from a plurality of scales.

  In order to achieve the above object, a control device according to the present invention controls a performance operation receiving device that receives a performance operation with a plurality of operators arranged in pitch order, from a plurality of pre-registered scales. Selection means for selecting one scale, assignment means for assigning each pitch constituting the scale selected by the selection means to the operator in octave units, and controlling the performance operation accepting device, Display control means is provided for displaying in which range of operation elements of the operation elements a pitch corresponding to one octave is assigned on the operation elements arranged in the vicinity or in the vicinity of the operation elements.

In such a control device, it is preferable that the plurality of musical scales include musical scales having different numbers of pitches constituting one octave.
Furthermore, the plurality of operators may be arranged one-dimensionally.
Alternatively, the plurality of operators may be divided into a plurality of units and the assignment unit may assign a pitch of one octave to the operators constituting the unit for each unit.
In addition, each control device described above may be provided with recording means for recording a series of performance operations received by the plurality of operators together with information on the scale selected by the selection means.

The electronic musical instrument of the present invention includes a performance operation accepting means for accepting a performance operation by a plurality of operators arranged in pitch order, a selection means for selecting one scale from a plurality of pre-registered scales, and the above selection Assigning means for assigning each pitch constituting the scale selected by the means in octave units to which of the operators, and in which range of the arranged operators the pitch corresponding to one octave is assigned Is provided on the arranged operators or in the vicinity of the operators.
Moreover, this invention can be implemented in arbitrary aspects, such as an apparatus, a system, a method, a program, a recording medium, etc. other than said form.

  According to the above configuration, when performing with a scale arbitrarily selected from a plurality of scales, it is possible to perform with good operability.

It is a figure which shows the hardware constitutions of one Embodiment of the electronic musical instrument of this invention. It is a figure which shows the structure of the performance operation element with which the electronic musical instrument shown in FIG. 1 is provided. It is a figure which shows the structure of the function relevant to the musical tone output using the some scale with which the electronic musical instrument shown in FIG. 1 is equipped. It is a figure which shows the example of a scale information. It is a flowchart of the process performed when CPU of the electronic musical instrument shown in FIG. 1 detects selection of a musical scale. It is a figure which shows the example of the keyboard of the state which lighted the lamp according to the process of FIG. It is a flowchart of the process performed when CPU of the electronic musical instrument shown in FIG. 1 detects operation of a performance operator. It is a figure which shows the example of the waveform data which a waveform memory memorize | stores. It is a figure which shows another example of musical scale information. It is a flowchart of the process which concerns on the allocation of a frequency and the update of the lighting state of a key which CPU of an electronic musical instrument performs according to selection of a fundamental tone and a scale. It is a flowchart of the process which concerns on the update of the lighting state of a key which CPU performs according to selection of a fundamental tone, and a display change instruction. It is a figure which shows another example of how to light a key. It is a figure which shows another example of the method of assigning the pitch to a key, and the method of making a key light. It is a figure which shows another example of a display. It is a figure which shows another example of a performance operator. It is a figure which shows another example of a performance operator. FIG. 17 is a diagram showing an example of pitch assignment and lighting control related to the performance operator shown in FIG. 16. FIG. 17 is a diagram showing another example of pitch assignment and lighting control related to the performance operator shown in FIG. 16. It is a figure which shows another example of a performance operator. It is a figure which shows the example of assignment of the pitch regarding the performance operator shown in FIG. 19, and lighting control. FIG. 20 is a diagram illustrating another example of pitch assignment and lighting control related to the performance operator illustrated in FIG. 19. It is a figure which shows the example which provides a control apparatus and a performance operation reception apparatus as a different body.

Hereinafter, embodiments for carrying out the present invention will be specifically described with reference to the drawings.
First, FIG. 1 shows a hardware configuration of one embodiment of the electronic musical instrument of the present invention.
As shown in FIG. 1, the electronic musical instrument 100 includes a CPU 101, a ROM 102, a RAM 103, a storage device 104, a communication I / F 105, a detection circuit 106, a display circuit 107, and a sound source circuit 108, which are connected by a system bus 109. Yes. Further, the operator 111 is connected to the detection circuit 106, the display 112 is connected to the display circuit 107, the DAC (digital analog converter) 113 is connected to the sound source circuit 108, and the sound system 114 is connected to the DAC 113. The waveform memory 115 is connected to the tone generator circuit 108 and provided.

Among these, the CPU 101 is a control unit that performs overall control of the operation of the electronic musical instrument 100, and executes a required program stored in the ROM 102 or the storage device 104 to control each unit of the electronic musical instrument 100, thereby to be described later. Various functions including the function of the control unit 130 are realized.
The ROM 102 is a rewritable non-volatile storage unit that stores programs to be executed by the CPU 101 and data that should remain even after the power is turned off.
The RAM 103 is storage means used as a work memory for the CPU 101.

The storage device 104 is a rewritable nonvolatile storage means for storing data that should be retained even when the power is turned off, such as scale information described later and sequence data that is performance data recording performance operations in the electronic musical instrument 100. . The sequence data can be recorded, for example, in MIDI (Musical Instrument Digital Interface: registered trademark) format.
In addition, the storage device 104 can be configured by an arbitrary storage medium such as a hard disk, a flexible disk, a compact disk (CD), a digital multipurpose disk (DVD), a flash memory, and a driving device thereof. The storage medium may be detachable or may be built in the electronic musical instrument 100.

The communication I / F 105 is an interface for connecting an external device to the electronic musical instrument 100, and an interface of any standard can be adopted regardless of wired or wireless.
The detection circuit 106 is an interface for connecting an operation element 111 for receiving an operation from a user, detecting an operation received by the operation element 111 and supplying the operation to the CPU 101. The operation element 111 includes a performance operation element such as a keyboard for receiving a performance operation from the user, and a setting operation element such as a key, a button, a slider, and a touch panel for receiving settings and instructions regarding the operation of the electronic musical instrument 100. .

  The display circuit 107 is an interface for connecting the display device 112 and causing the display device 112 to perform display under the control of the CPU 101. The display unit 112 is a display unit for displaying the setting state and operation state of the electronic musical instrument 100, and can be configured by arbitrarily combining lamps, displays, and the like. Further, the display unit 112 includes a display unit corresponding to each pitch operation unit constituting the performance operation unit.

The sound source circuit 108 is sound source means that generates and outputs audio waveform data that is an acoustic signal based on the waveform data stored in the waveform memory 115 and the sound generation instruction supplied from the CPU 101.
The DAC 113 has a function of converting digital audio waveform data output from the sound source circuit 108 into an analog sound signal and outputting the analog sound signal to the sound system 114.
The sound system 114 is a sound generation unit that outputs sound based on an analog acoustic signal, and can be configured by a speaker, for example.

The waveform memory 115 is storage means for storing waveform data used by the tone generator circuit 108 to generate audio waveform data. The waveform memory 115 can be configured as, for example, a ROM, and stores waveform data such as a PCM waveform obtained by sampling a musical tone of a natural musical instrument such as a piano or a guitar at a predetermined period, or a PCM waveform of an artificially synthesized musical tone.
The electronic musical instrument 100 described above has a function as a musical instrument that outputs musical sounds in accordance with a user's performance operation, and also includes a sequencer function that records and reproduces the contents of the performance operation.
Further, one of the characteristic points of the electronic musical instrument 100 is that it is possible to perform using a scale arbitrarily selected from a plurality of pre-registered scales, and each pitch of the scale is assigned to the performance operator. It is a point that the player is displayed in an easy-to-understand manner. Hereinafter, this point will be described.

First, FIG. 2 shows a configuration of a performance operator provided in the electronic musical instrument 100.
The electronic musical instrument 100 includes a keyboard 141 in which keys 142 of the same size and shape are arranged one-dimensionally as shown in FIG. Each key 142 is associated with a note number indicating one pitch, and is arranged in pitch order (the reverse order may be used) such that the left side is the bass side and the right side is the treble side. However, which note number specifically corresponds to which pitch (frequency) depends on the scale selected as described later.

  Each key 142 includes a lamp 151 that is a part of the display 112. The lamp 151 may be lit by a part of the key 142 or may illuminate the entire key 142. Moreover, the thing which can be lighted only by one color and the thing which can be lighted by arbitrary colors among several colors may be sufficient. Specific examples of lighting control of these lamps 151 will be described later.

Next, FIG. 3 shows a configuration of functions related to musical tone output using a plurality of scales provided in the electronic musical instrument 100.
As shown in FIG. 3, the electronic musical instrument 100 includes functions of a main control unit 130 and a performance operator 140 as functions related to musical tone output using a plurality of scales. Among these, the function of the main control unit 130 is realized by controlling various hardware by the CPU 101 executing a required program. The function of the performance operator 140 is realized by the keyboard 141 shown in FIG. The function of the display 150 provided in the performance operator 140 is realized by the lamp 151 shown in FIG.

First, the main control unit 130 includes a scale information storage unit 131, a scale selection unit 132, a pitch assignment unit 133, a performance operation detection unit 134, a sound generation instruction unit 135, a sound generation unit 136, a display control unit 137, and a performance operation recording unit 138. Is provided.
Among these, the scale information storage unit 131 has a function of storing scale information that defines a plurality of scales that can be used in the electronic musical instrument 100. For example, as shown in FIG. 4, the scale information can be obtained by defining each pitch constituting the scale by the frequency of the pitch. Details thereof will be described later.

  The scale selection unit 132 has a function of selection means for selecting one scale used for performance from the scales indicated by the scale information in the scale information storage unit 131 and reflecting the selection in the assignment in the pitch assignment unit 133. . The scale selection unit 132 can perform scale selection in accordance with a user's selection operation, or can perform automatic scale selection accompanying sequence data reproduction or the like.

  The pitch assigning unit 133 assigns each pitch constituting the scale selected by the scale selecting unit 132 to each operator constituting the performance operator (here, each key constituting the keyboard, but is not limited thereto). The function of the allocation means to allocate to is provided. Various allocation methods are conceivable as will be described later, but allocation is performed so that it is possible to specify to which range of controls the pitch of each octave is allocated at least in octave units. This assignment can be performed by assigning a frequency to the note number corresponding to each operator.

The performance operation detection unit 134 has a function of a detection unit that detects a performance operation performed on the performance operator 140 by the user.
The sound generation instruction unit 135 has a function of sound generation instruction means for instructing the sound generation unit 136 to generate sound with the frequency of the pitch assigned to the key 142 (and the corresponding note number) detected by the performance operation detection unit 134. Prepare. Also, the sound generation instruction unit 135 is a function for instructing the sound generation unit 136 to generate sound according to a performance event such as a key sound generated according to sequence data or received from an external device in the same manner as sound generation according to a performance operation. Also equipped.

The sound generation unit 136 has a function of sound generation means for outputting sound based on waveform data obtained by expanding and contracting the waveform data stored in the waveform memory 115 according to the frequency specified by the sound generation instruction unit 135.
The display control unit 137 controls the display unit 150 according to the assignment performed by the pitch assignment unit 133 to determine which range of keys 142 in the keyboard 141 is assigned a pitch corresponding to one octave. And a function of display control means for displaying by the lamp 151. A specific display mode will be described in detail later.

The performance operation recording unit 138 displays a series of performance operations detected by the performance operation detection unit 134 while recording the performance operation, together with information on the currently selected scale supplied from the pitch assignment unit 133. It has the function of recording means for recording. This recording can be performed in parallel with pronunciation. The scale information to be recorded may be an ID, or if the capacity is sufficient, all the scale information related to the selected scale may be recorded.
When the scale used for performance can be changed, it is not possible to specify the frequency of the sound to be actually generated by simply recording the note number and operation timing of the operated key. However, by recording the scale information in association with the performance operation as described above, it is possible to select the recorded scale at the time of reproduction and execute the sound generation at the same frequency as at the time of recording.

Next, FIG. 4 shows an example of the scale information stored in the scale information storage unit 131.
As shown in FIG. 4, the scale information is information that defines the pitches constituting the scale by the frequency corresponding to each note number for a plurality of scales having different numbers of pitches constituting one octave. In the example of FIG. 4, all the scales are equal temperament, and the frequency of each pitch is obtained by multiplying the basic frequency by a predetermined ratio every time one sound is left, with 440 hertz (Hz) as the fundamental tone. Can do.

For example, in the case of 12 equal temperament, 2 ^ (1/12) may be multiplied every time one note is moved away from the high pitch side. What is necessary is just to multiply the reciprocal number about a bass side. In this specification, a ^ b represents a to the bth power.
Also, in general, in the case of n-equal temperament (n is a natural number), 2 ^ (1 / n) may be multiplied every time one note is moved to the high pitch side.

  The scale information includes at least frequency information corresponding to the note numbers corresponding to the keys 142 included in the keyboard 141. It also includes identification information (ID) of each scale and information on the number of pitches constituting one octave in each scale (n in the case of n equal temperament). 4 is a pitch name in the case of 12 equal temperament, and is shown in the figure for reference. It does not matter if the scale information does not include pitch name data. .

  The position of the fundamental tone is used as a reference when assigning pitches to keys (or note numbers). In the example of FIG. 4, regardless of the scale used, a key having a note number of 69 is assigned a pitch of 440 hertz, and the pitch to be assigned to other keys is determined based on this correspondence. Specifically, to which note number the fundamental tone is assigned and the frequency value of the fundamental tone can be arbitrarily determined.

Next, FIG. 5 shows a flowchart of processing executed when the CPU 101 of the electronic musical instrument 100 detects selection of a scale.
When the CPU 101 detects that a scale to be used for performance is selected by operating a setting operator in the operator 111 or the like, the CPU 101 starts processing shown in the flowchart of FIG. First, on the basis of the position of the fundamental tone, the pitch indicated by the scale information of the currently selected scale is assigned to the note number of each key (S11). This process corresponds to the function of the pitch assignment unit 133.

Next, the CPU 101 acquires a note number for each octave from the fundamental tone based on the scale information of the selected scale (S12), and lights the lamp 151 of the key 142 corresponding to the acquired note number (S13). The process is terminated. These processes correspond to the functions of the display control unit 137.
In step S12, a note number corresponding to the key 142 in the keyboard 141 is set to a value satisfying X + kn, where X is the note number of the fundamental tone, n is the number of pitches per octave in the selected scale, and k is an arbitrary integer. Find all in the range.

FIG. 6 shows an example of the keyboard 141 in a state where the lamp is turned on according to the processing of FIG.
FIG. 6 shows lighting states when the 12 equal temperament, 15 equal temperament, 19 equal temperament, and 31 equal temperament are selected. The hatched key is a key whose lamp 151 is lit (hereinafter, reference to the lamp is omitted and may be simply referred to as “lighted key”). Further, NN indicates a note number corresponding to the lit key.

  In any of the equal temperaments, one note is assigned to one key. When n equal temperament is selected, a pitch corresponding to one octave is assigned to n keys. On the other hand, as can be seen from FIG. 6, in the process of FIG. 5, every n keys are lit with reference to the key of NN = 69 which is the fundamental tone.

Therefore, regardless of the number of pitches that make up one octave, the user must assign a pitch of one octave to a key from one lit key to the key just before the next lit key. Can be easily recognized. Therefore, even when performing with a scale arbitrarily selected from a plurality of scales, it is possible to perform with good operability.
The key at the position of the fundamental tone may be lit in a different manner from the others. Various modes such as lighting color, rhythm (lighting and blinking, blinking interval, etc.), number of lamps, display of characters and symbols, and the like can be considered.

Next, FIG. 7 shows a flowchart of processing executed when the CPU 101 of the electronic musical instrument 100 detects an operation of the performance operator 140 (here, pressing of the key 142).
When the CPU 101 detects that the key 142 has been pressed, it starts the process shown in the flowchart of FIG. First, the frequency assigned to the note number of the pressed key 142 is acquired (S21). This assignment is made in step S11 of FIG. For example, if 19 equal temperament is selected and a note number of 76 is pressed, the frequency to be acquired is 568.01325 Hz.

Next, the CPU 101 selects, from the waveform data stored in the waveform memory 115, waveform data corresponding to the velocity of the detected key pressing operation and the frequency acquired in step S21 for the currently selected tone color (S22). ).
Here, as shown in FIG. 8, the waveform memory 115 stores, for each tone color, waveform data used for sound generation in each frequency and velocity range. In step S22, the CPU 101 selects waveform data to be used for sound generation by a combination of the velocity of the key pressing operation and the acquired frequency value from the plurality of waveform data shown in FIG.

  Next, the CPU 101 instructs the sound source circuit 108 to reproduce the waveform data selected in step S22 by expanding / contracting according to the frequency and attaching the envelope according to the velocity (S23), and the process is terminated. To do. Since each waveform data shown in FIG. 8 has a reference frequency, if the frequency to be sounded is different from this, the waveform data is reproduced by adjusting the read address progression speed according to the frequency ratio. The frequency of waveform data can be adjusted. Similarly, in the case where the velocity as a reference is different from the velocity to be sounded, the amplitude may be adjusted according to the ratio.

The reproduction started in step S23 is continued until a key release operation is detected, and stopped according to the key release operation.
7 corresponds to the function of the sound generation instruction unit 135.
Through the above processing, according to the operation of the performance operator 140, it is possible to perform pronunciation using the currently selected scale. That is, the user can perform a performance using the selected scale by the performance operator 140.

[Modification]
Next, various modifications of the above-described embodiment will be described.
First, a modification of the scale information will be described with reference to FIG.
In FIG. 4, the scale information defining the frequency for each note number is shown. However, as shown in FIG. 9, the scale may be defined only by the frequency ratio between adjacent pitches for each scale. The frequency ratio may be expressed in hertz or in cent units.

As shown in the bottom line of FIG. 9, the scale information of the n-tempered temperament may be stored as a general formula, and the scale information of the selected pitch may be generated by calculation according to the selection of the value of n. .
By adopting such a method, it is possible to assign pitches to keys more flexibly. For example, the key position (note number) to which the fundamental tone is assigned and the fundamental frequency can be arbitrarily changed by the user. Based on any combination of note number and frequency, every time the note number is increased by 1, the frequency ratio between adjacent pitches is multiplied, and every time the note number is decreased by 1, the reciprocal of the frequency ratio between adjacent pitches is multiplied. This is because the frequency to be assigned to each note number can be obtained.

Even when the scale information shown in FIG. 9 is used, the electronic musical instrument 100 may calculate a specific value of the frequency assigned to each note number in accordance with the selection of the scale. This calculation requires a certain amount of time and processing capability, and therefore calculation when using a value for sound generation or the like leads to processing delay.
The key to which the fundamental tone is assigned and the fundamental frequency can be arbitrarily input by the user. Further, according to the currently selected scale, any key and the frequency currently assigned to the key may be selected as the key to which the fundamental tone is assigned and the frequency of the fundamental tone. It can be considered that this selection can be performed by operating an arbitrary key to be selected.

  In addition, a new scale is selected with the key and frequency selected, and a frequency according to the newly selected scale can be assigned to the note number of each key based on the selected key and frequency. Also good. When making this assignment, the lighting state of the key 142 is also updated according to the newly selected scale.

Steps S31 to S33 in FIG. 10 show processing relating to frequency allocation and updating of the lighting state of the key 142, which is executed by the CPU 101 in accordance with the selection of the fundamental tone and scale.
According to this processing, it is possible to select a musical scale with a high degree of freedom by arbitrarily designating a fundamental tone.
Further, the lighting state of the key 142 can be changed to lighting based on the selected key in accordance with the selection of the key to which the fundamental tone is assigned and the display change instruction without selecting a new scale. It may be.
Steps S41 to S42 in FIG. 11 show processing related to updating the lighting state of the key 142, which is executed by the CPU 101 in response to the selection of the fundamental tone and the display change instruction.
According to this processing, a pitch range as a reference can be arbitrarily designated, and a range of keys to which pitches corresponding to one octave are assigned can be displayed, so that a display with a higher degree of freedom can be achieved.

Next, another example of how to light the key 142 will be described with reference to FIG.
In the example of FIG. 6, only the keys for each octave are lit, but as shown in FIG. 12, some keys in the octave may be lit as well. At this time, lighting for each octave and lighting within the octave may be performed in different modes. In FIG. 12, this is indicated by hatched hatching and horizontal hatching. The lighting mode is as described above.

When there are a large number of pitches that make up one octave, it is difficult to know the number of pitches in each octave that correspond to each key only by lighting up one octave. In such a case, it is possible to make the correspondence between keys and pitches more understandable by lighting some keys within the octave.
FIG. 12 shows an example in which a key is lit every three notes in the case of 12 equal temperament and 15 equal temperament. However, the interval is not limited to this, and the interval need not be equal. However, the number of the key to be lit within one octave is common to all octaves.

Next, another example of how to assign a pitch to a key and how to light the key will be described with reference to FIG.
In the example of FIG. 6, pitches are assigned to all keys, but this is not essential. When the frequency information of adjacent pitches is obtained by calculation, such as when using scale information shown in FIG. 9, it is not always necessary to assign adjacent pitches to adjacent keys. The next pitch can be assigned to the key after skipping several keys. However, even in this case, the pitch order of the keys shall be maintained. That is, the frequency assigned to the key is monotonously increased or decreased monotonically from the left to the right of the keyboard.

  In the example of FIG. 13, pitches corresponding to one octave are assigned to consecutive pitches, and one key that does not assign pitches is provided between octaves. That is, in the case of the twelve equal temperament shown in (a), a pitch of one octave is assigned to twelve consecutive keys (NN = 69 to 80) including the key of NN = 69, and the following The NN skips the 81 key, and the pitch of the next one octave is assigned to the NN 82-93 key. The same applies to the 15 equal temperament shown in (b).

A key to which no pitch is assigned is lit, indicating that the key is an octave boundary.
Even if the electronic musical instrument 100 performs such assignment and lighting control, the user can easily recognize the range of keys to which the pitch of one octave is assigned, regardless of the number of pitches that make up one octave. Can be performed with good operability.

Next, another example of the display device will be described with reference to FIG.
In the examples of FIGS. 2 and 6 and the like, the example in which the lamp 151 is provided as an indicator inside the key for each key 142 has been described. However, as shown in FIG. 14, a display 152 having a display area covering the entire area where the keys 142 are arranged is arranged as a display near the keyboard 141, and the pitch of one octave is displayed by the display 152. The range of keys to which is assigned may be displayed.

In the example of FIG. 14, the position of the key to which the sound for each octave from the fundamental tone is assigned is indicated by an arrow 153, and the octave that each arrow indicates is indicated by a character string 154. “O4” is an octave that starts with the fundamental tone, and the higher the pitch, the larger the number. In the example of FIG. 14, the position of the key hatched in FIG. 6 is indicated by an arrow 153 in both cases of (12) equal temperament in (a) and (15) equal temperament.
Even with such an indicator and display, the user can easily recognize the range of keys to which the pitch of one octave is assigned, regardless of the number of pitches constituting one octave. I can perform well. It should be noted that the display 152 may be divided into a plurality of parts as long as the entire area where the keys 142 are arranged can be displayed.

Next, another example of the performance operator will be described with reference to FIG.
In the examples of FIGS. 2 and 6, the keyboard 141 in which the keys 142 whose shapes appearing in the plan view are rectangular is arranged on a straight line is used as the performance operator 140. However, the arrangement is not limited to a linear shape, and the shape of the key does not have to be rectangular.

For example, as shown in FIG. 15, it is also conceivable to use a keyboard 143 in which keys 144 having a substantially trapezoidal shape appearing in a plan view are arranged in a fan shape.
Even in this case, if the keys 144 are arranged in the pitch order, the pitch assignment to the keys according to the selection of the scale and the key lighting control are the same as in the embodiments and modifications described so far. It can be carried out. Moreover, the effect is acquired similarly.

Next, still another example of the performance operator will be described with reference to FIG.
Up to this point, an example in which a keyboard is used as the performance operator 140 has been described, but the present invention is not limited to this. For example, as shown in FIG. 16, an operation panel 145 on which buttons 146 corresponding to the pitch order are arranged can be used as a performance operator. In this case, the display device may be provided in each button 146 or a display as shown in FIG.

Even in this case, if the buttons 146 are arranged in the order of the pitches, the pitch assignment to the buttons according to the selection of the scale and the lighting control of the buttons are the same as in the embodiment and the modification described so far. It can be carried out. Moreover, the effect is acquired similarly.
In the example of FIG. 16, the buttons 146 are arranged in two rows in order to reduce the arrangement space. The numbers in the buttons indicate the note numbers associated with each button.

In addition, it is also conceivable to perform pitch assignment and lighting control as shown in FIGS.
In the example shown in FIG. 17, assuming that the number of sounds constituting one octave is n, the pitch of one octave is assigned to n consecutive buttons from the left on the basis of the leftmost button, and the next n + 1 When the 1st button is in the upper row, the next octave pitch is assigned from the n + 2 lower row button by skipping one. If the (n + 1) th button is in the lower row, the pitch of the next octave is assigned from the (n + 1) th button without skipping. That is, the lowest note in the octave is always assigned to the button on the lower side (front side as viewed from the performer). The same rule applies to any of (a) 12 equal temperament, (b) 15 equal temperament, and (c) 19 equal temperament.

If the correspondence between pitches and button positions changes for each octave, the correspondence becomes difficult to understand. Therefore, when arranging the performance controls in multiple rows, the pitch (reference pitch) in each octave ( It is preferable to always assign the lowest sound in the example of FIG. 17 to the operators in the same column.
In the example of FIG. 17, the operation panel 145 lights up the button to which the lowest sound of each octave is assigned (indicated by hatching), and displays the range of the operation element to which the pitch of one octave is assigned. doing. If there is a button to which no pitch is assigned, the button is lit in another manner (indicated by dot hatching) to indicate that.

The example shown in FIG. 18 is similar to the example shown in FIG. 17, but when the n + 1th button is in the lower row, two are skipped and the pitch of the next octave is changed from the n + 3th button. Allocation is done. There is always a button that does not assign a pitch between octaves, making the octave boundaries easier to understand.
As for the lighting of the buttons, the assigned buttons are turned on in different modes (indicated by hatching and dot hatching) for each octave, and the buttons to which no pitches are assigned are turned off (not shown by hatching). As a result, the range of the operation element to which the pitch of one octave is assigned is displayed so that it can be easily recognized.

Next, another example of the performance operator will be described with reference to FIG.
In the example described so far, the performance operator is provided as one unit. However, the performance operator may be divided into a plurality of units as shown in FIG. In the example of FIG. 19, the performance operator 140 is configured by seven units of keyboard 141 indicated by 141-1-7. The structure of each keyboard 141 is the same as that shown in FIG.
The keys 142 of each keyboard 141 are associated with a series of serial numbers of note numbers through all units in the order of 141-1 to 7. In the electronic musical instrument 100, as if the keyboards 141-1 to 14-7 are one-unit long keyboards, as in the embodiment or the modification described so far, pitch assignment and key lighting are performed. Take control.

  If the scale to be used has a large number of notes per octave, such as 31 equal temperament or 53 equal temperament, it is desirable to use a large number of keys such as 150 keys in order to perform. In this case, if the keys are arranged in one row, it is difficult to perform the music within the reach of the hand. Therefore, it is desirable to use a performance operator divided into a plurality of units as shown in FIG. Also, it is desirable that the key width be as narrow as possible without causing any trouble in performance.

Next, another example of pitch assignment and key lighting control when the performance operator shown in FIG. 19 is used will be described with reference to FIGS.
In the example shown in FIG. 20, the pitches are assigned so that the octave starts from the leftmost key for each keyboard unit. A character string such as “oct1” indicates an octave assigned to the corresponding unit, and the lower the number, the lower the octave. It is not necessary to assign a pitch to the surplus keys for each unit.

When such an assignment is made, a pitch corresponding to one octave is assigned to an operator constituting one unit, and the correspondence between the key position and the pitch within the octave is common to each unit. Therefore, even if no special display is performed, the user can easily recognize which range of controls is assigned a pitch of one octave.
However, recognition can be facilitated by displaying such that keys assigned to pitches and keys not assigned can be distinguished.
In the example of FIG. 20, the pitch of 17 equal temperament scales is assigned to the keyboard 141 of 20 keys per unit. Then, the remaining three keys on the right side of each unit that are not assigned pitches are turned on to indicate that.

On the other hand, in the example shown in FIG. 21 as well, assigning each keyboard unit so that the octave starts from the leftmost key is the same as in FIG. Each key is assigned the next octave pitch.
Therefore, if a pitch of 17 equal temperament scales is assigned to the keyboard 141 of 20 keys per unit, the three lowermost notes of “oct2” are assigned to the three rightmost keys of the keyboard 141-1, respectively. The three leftmost keys of “oct2” are also assigned to the leftmost three keys of “2”.

That is, three sets of locations where the same pitch is assigned to two keys are generated. Therefore, lighting these keys in the same manner indicates that the same pitch is assigned.
The same relationship exists between the rightmost three keys of the keyboard 141-2 and the leftmost three keys of the keyboard 141-3, and between other units. Therefore, the keys to which the same pitches are assigned are displayed in the same manner. Further, as shown in the figure by changing the type of hatching, lighting is performed in a different manner for each set of units so as not to cause confusion.
Even if such display and assignment are performed, the same effect as in the case of FIG. 20 can be obtained. In the case of the method shown in FIG. 21, the performance across the octaves can be performed with the adjacent keys as long as it is within the range of one unit, and higher operability than in the case of FIG. 20 can be obtained.

Next, an example in which the control device and the performance operation accepting device are provided separately will be described with reference to FIG.
Functions similar to those of the electronic musical instrument 100 shown in FIG. 1 and the like, as shown in FIG. 22, a control device 200 and a performance operation accepting device 300 are provided as separate devices, and these are connected so as to be able to communicate with each other. It can also be realized as an acoustic signal processing system.

  In this case, the control device 200 has the same function as the main control unit 130 of FIG. 3, and the performance operation accepting device 300 has the same functions as the performance operator 140 and the display 150 of FIG. The communication path between the control device 200 and the performance operation accepting device 300 is arbitrary regardless of wired or wireless. It can be a network or a local connection.

  Further, both the control device 200 and the performance operation accepting device 300 include a processor including a CPU, a ROM, a RAM, and the like, and a required function is realized by causing the processor to execute a required program. In addition, a part of the function of the main control unit 130 can be provided on the performance operation receiving apparatus 300 side. Furthermore, it is conceivable that functions similar to those of the electronic musical instrument 100 are provided in three or more devices.

Although the description of the embodiment has been completed above, the configuration of devices and functions including the performance operator and the display, the configuration of the scale, the display method, the specific processing procedure, etc. are described in the above-described embodiment. Of course, it is not limited to what was done.
For example, in the embodiment described above, the scale used is equal temperament, but is not limited thereto. If the pitch frequency (or frequency ratio between pitches) constituting one octave is defined by the scale information, the frequency ratio between adjacent pitches does not need to be constant. For example, a pentatonic (sound scale) or a scale that is used when performing folk music can be applied.
Moreover, you may enable it to add the pitch of the frequency designated by the user with respect to the equal temperament. For example, a sound between Mi and Fa is added to the normal 12 equal temperament. Also, the pitch of individual sounds in the equal temperament or other scales may be arbitrarily edited by the user.

  In addition, it is not essential to use a display device that is provided separately from the performance controls when displaying the range of controls assigned to the pitch of one octave. If it is made to float and sink compared to other controls so that it can be distinguished from other controls, this can be handled in the same way as the lighting of the lamp in the above-described embodiment, and display can be performed. Is possible.

Further, the various operators including the performance operator are not limited to those having a physical entity, and may be based on images displayed on the screen. In this case, the display device may be an image displayed on the screen.
Further, the waveform data stored in the waveform memory 115 is not prepared for each frequency and velocity range as shown in FIG. 8, but is used for sound generation of the pitch for each pitch constituting the scale. May be prepared.

The program of the present invention is a program for causing a computer to realize the functions of the main control unit 130 or the control device 200 (particularly the functions of the scale selection unit 132, the pitch assignment unit 133, and the display control unit 137).
Such a program may be stored in a ROM or other nonvolatile storage medium (flash memory, EEPROM, etc.) provided in the computer from the beginning. However, it can also be provided by being recorded on an arbitrary nonvolatile recording medium such as a memory card, CD, DVD, or Blu-ray disc. By installing the program recorded in these recording media and executing the program on the computer, the computer can execute necessary processing.

Furthermore, it is also possible to download from an external device that is connected to a network and includes a recording medium that records the program, or an external device that stores the program in a storage unit, and install and execute the program on a computer.
In addition, the configurations and modifications described above can be applied in appropriate combinations within a consistent range.

As is clear from the above description, according to the present invention, when performing with a scale arbitrarily selected from a plurality of scales, it is possible to perform with good operability.
Therefore, by applying the present invention, the operator of the electronic musical instrument can be improved.

100: electronic musical instrument, 101: CPU, 102: ROM, 103: RAM, 104: storage device, 105: communication I / F, 106: detection circuit, 107: display circuit, 108: sound source circuit, 109: system bus, 111 : Operator, 112: Display, 113: DAC, 114: Sound system, 115: Waveform memory, 130: Main control unit, 131: Scale information storage unit, 132: Scale selection unit, 133: Pitch allocation unit, 134 : Performance operation detection unit, 135: Sound generation instruction unit, 136: Sound generation unit, 137: Display control unit, 138: Performance operation recording unit, 140: Performance operator, 141, 143: Keyboard, 142, 144: Key, 145: Operation panel, 146: button, 150: display, 151: lamp, 152: display, 200: control device, 300: performance operation accepting device

Claims (7)

A control device that controls a performance operation accepting device that accepts a performance operation by a plurality of operators arranged in pitch order,
Selection means for selecting one scale from a plurality of pre-registered scales;
Assigning means for assigning each pitch constituting the scale selected by the selecting means to the operator in octave units;
By controlling the performance operation accepting device, it is indicated on the arranged operators or in the vicinity of the range that the pitch of one octave is assigned to which range of the arranged operators. And a display control means for displaying on the control device. The control device according to claim 1,
The control device according to claim 1, wherein the plurality of scales include scales having different numbers of pitches constituting one octave. The control device according to claim 1 or 2,
The control device, wherein the plurality of operators are arranged one-dimensionally. The control device according to claim 1 or 2,
The plurality of operating elements are divided into a plurality of units and arranged,
The assigning means assigns a pitch of one octave to an operator constituting the unit for each unit. The control device according to any one of claims 1 to 4,
A control device comprising recording means for recording a series of performance operations received by the plurality of operators together with information on a scale selected by the selection means.   The program for functioning a computer as a control apparatus as described in any one of Claims 1 thru | or 5. A performance operation receiving means for receiving a performance operation by a plurality of operators arranged in pitch order;
Selection means for selecting one scale from a plurality of pre-registered scales;
Assigning means for assigning each pitch constituting the scale selected by the selecting means to the operator in octave units;
Display means for displaying on the or near the arranged controls which pitches for one octave are assigned to which range of the assigned controls among the arranged controls. An electronic musical instrument characterized by

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