JP2007248659A - Electronic musical instrument - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make operation of performance easy and to give a user satisfaction. <P>SOLUTION: An electronic musical instrument is equipped with a code determining section 25, a key pressing state detecting section 26, and a sound outputting section 27. The code determining section 25 determines a code based on a pressed key in a keyboard 6 for code detecting. The key pressing state detecting section 26 detects a pressed pedal key in a plurality of keys equipped with a pedal keyboard 8, and detects a group to which the pedal key belongs in a plurality of groups 43 for dividing the plurality of keys. The sound outputting section 27 outputs a musical tone with tone height corresponding to the group and the code. It is desirable that the number of the plurality of groups is less than the number of the plurality of keys. At this time, a user does not need to distinguish all keys of the pedal keyboard 8, and the sound of the musical tone of desired height is output by the electronic musical instrument 1. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an electronic musical instrument, and more particularly to an electronic musical instrument including a pedal keyboard that is played with a foot.

  There is known an electronic musical instrument that includes an upper keyboard that is played by hand, a lower keyboard, and a pedal keyboard that is played by feet. Each of the upper keyboard, the lower keyboard, and the pedal keyboard includes a plurality of keys corresponding to a plurality of different pitches. The electronic musical instrument outputs a musical tone having a pitch corresponding to the key to be pressed on the upper keyboard. The electronic musical instrument automatically accompanies a chord accompaniment pattern corresponding to a key to be pressed on the lower keyboard. The electronic musical instrument outputs a musical tone having a pitch corresponding to the key to be pressed on the pedal keyboard.

  The user generally requires skill to freely operate the pedal keyboard. The user can obtain satisfaction by operating the pedal keyboard. An electronic musical instrument that can easily operate a pedal keyboard is desired.

  Japanese Patent Application Laid-Open No. 58-18695 discloses an automatic accompaniment device for an electronic musical instrument that can perform an automatic accompaniment without unnaturalness without performing a special switch device when changing chords. Yes. An automatic accompaniment device for an electronic musical instrument includes a keyboard unit used for chord performance, pattern generating means for generating a sound pattern of automatic accompaniment sounds, chords played on the keyboard part, and patterns generated from the pattern generating means In an automatic accompaniment device for an electronic musical instrument comprising an accompaniment sound generating means for generating an automatic accompaniment sound based on the chord, the chord detection means for detecting a chord based on the key depression state of the keyboard part, and the chord detection means sequentially A chord progression detecting means for detecting a specific chord progression from the preceding and following relationship of the detected chord, and a control means for controlling the generation of the automatic accompaniment sound based on the detection of the specific chord progression by the chord progression detecting means; It is characterized by that.

JP 58-18695 A

An object of the present invention is to provide an electronic musical instrument that facilitates performance operations.
Another object of the present invention is to provide an electronic musical instrument that gives satisfaction to the user.
Still another object of the present invention is to provide an electronic musical instrument that prevents an erroneous musical sound from being output due to an erroneous operation.

  In the following, means for solving the problems will be described using the reference numerals used in the best modes and embodiments for carrying out the invention in parentheses. This reference numeral is added to clarify the correspondence between the description of the claims and the description of the best mode for carrying out the invention / example, and is described in the claims. It should not be used to interpret the technical scope of the invention.

  The electronic musical instrument (1) according to the present invention includes a chord discriminating unit (25), a key pressing state detecting unit (26), and a sounding unit (27). The chord discriminating unit (25) discriminates the chord based on the depressed key of the chord detection keyboard (6). The key depression state detection unit (26) detects a depressed pedal key among a plurality of keys included in the pedal keyboard (8), and a group to which a pedal key of a plurality of groups (43) that classifies the plurality of keys belongs. Is detected. The sound generation unit (27) outputs musical tones corresponding to the group and chord. The number of the plurality of groups is preferably smaller than the number of the plurality of keys.

  The electronic musical instrument (1) according to the present invention includes a chord discriminating unit (25), a key pressing state detecting unit (26), and a sounding unit (27). The chord discriminating unit (25) discriminates the chord based on the depressed key of the chord detection keyboard (6). The key depression state detection unit (26) detects a depressed pedal key among a plurality of keys included in the pedal keyboard (8), and a group to which a pedal key of a plurality of groups (43) that classifies the plurality of keys belongs. Is detected. The sound generation unit (27) outputs a rhythm pattern formed from musical tones corresponding to the group and chord during the period in which the pedal key is pressed. The number of the plurality of groups is preferably smaller than the number of the plurality of keys.

  The plurality of keys are divided into a white key group (11) and a black key group (12) based on a position where each of the plurality of keys is arranged. The pitch of the musical tone output based on the depression of the pedal key is the root of the chord when the pedal key belongs to the white key group (11), and when the pedal key belongs to the black key group (12). It is preferably the fifth tone of the chord.

  The electronic musical instrument (1) according to the present invention further includes a mode switching unit (24) for switching between the first mode and the second mode based on the operation content operated by the input device (3). The plurality of keys on the pedal keyboard (8) correspond to a plurality of different pitches. At this time, the sound generator (27) outputs a musical tone when in the first mode, and outputs a musical tone having a pitch corresponding to the pedal key when in the second mode.

  The sound generation part (27) preferably further automatically accompanies the accompaniment pattern corresponding to the chord.

  The electronic musical instrument (1) according to the present invention further includes a setting unit (23) for selecting a selected timbre from a plurality of timbres based on the operation contents operated by the input device (3). At this time, it is preferable that the musical sound output based on the depression of the pedal key is formed from a selected timbre, and the accompaniment pattern is formed from a timbre excluding a selected timbre among a plurality of timbres.

  The electronic musical instrument (1) according to the present invention has a database (22, 41) for associating a combination of a plurality of groups (43) and a plurality of chords (42) that classify a plurality of keys included in the pedal keyboard (8) with a plurality of accompaniment patterns (44). ), A chord discriminating unit (25) for discriminating a chord based on the key that has been depressed in the chord detection keyboard (6), and a depressed pedal key in the pedal keyboard (8). , A key depression state detection unit (26) for detecting a group to which a pedal key belongs among a plurality of groups (43) and a database (22, 41), and a chord and a group of the plurality of accompaniment patterns (44) And a sound generation unit (27) for outputting an accompaniment pattern corresponding to. At this time, the number of the plurality of groups (43) is preferably smaller than the number of the plurality of keys.

  The electronic musical instrument according to the present invention can always output a musical tone that harmonizes with a chord in response to an operation of the pedal keyboard. As a result, even if the user is not an expert, he / she does not play musically wrong music. That is, the electronic musical instrument can give the user a satisfaction of playing with his / her feet when a non-expert user operates the pedal keyboard with his / her feet.

  An embodiment of an electronic musical instrument according to the present invention will be described with reference to the drawings. As shown in FIG. 1, the electronic musical instrument 1 is provided with a plurality of input devices in an electronic musical instrument body 2. The plurality of input devices are formed of a front panel 3, an upper keyboard 5, a lower keyboard 6, and a pedal keyboard 8.

  The front panel 3 is disposed at the back of the upper part of the electronic musical instrument main body 2 and includes an LCD screen and a plurality of switches. The LCD screen is a display surface of a liquid crystal display, and the liquid crystal display displays a screen generated by the electronic musical instrument main body 2. The front panel 3 outputs an electric signal indicating the operated switch among the plurality of switches to the electronic musical instrument main body 2. That is, the user operates the front panel 3 to generate information and inputs the information to the electronic musical instrument main body 2.

  The upper keyboard 5 is arranged approximately at the center of the upper part of the electronic musical instrument body 2 and includes a plurality of keys. The plurality of keys are formed of a plurality of white keys and a plurality of black keys, and each correspond to a plurality of different pitches. The upper keyboard 5 outputs to the electronic musical instrument main body 2 an electrical signal indicating the key that has been pressed and the key strength.

  The lower keyboard 6 is arranged in front of the upper keyboard 5 at the top of the electronic musical instrument body 2 and includes a plurality of keys. The plurality of keys are formed of a plurality of white keys and a plurality of black keys, and each correspond to a plurality of different pitches. The lower keyboard 6 outputs to the electronic musical instrument body 2 an electrical signal indicating the key that has been pressed and the key strength.

  The pedal keyboard 8 is disposed at the lower part of the electronic musical instrument body 2 and includes a plurality of keys. The plurality of keys respectively correspond to a plurality of different pitches and are formed of a plurality of white keys 11 and a plurality of black keys 12. The black key 12 is disposed behind the white key 11 and is disposed between two adjacent white keys of the white key 11. The pedal keyboard 8 outputs an electric signal indicating the stepped key of the white key 11 and the black key 12 to the electronic musical instrument body 2.

  The electronic musical instrument 1 further includes a speaker 9. The speaker 9 converts the electrical signal generated by the electronic musical instrument main body 2 into sound, that is, sounds the musical sound generated by the electronic musical instrument main body 2.

  FIG. 3 shows the electronic musical instrument main body 2. The electronic musical instrument main body 2 is a computer and includes a CPU and a storage device not shown. The CPU executes a computer program installed in the electronic musical instrument main body 2 and controls the storage device, the front panel 3, the upper keyboard 5, the lower keyboard 6, the pedal keyboard 8 and the speaker 9. The storage device is a ROM or a RAM, records the computer program, and temporarily records information generated by the CPU.

  The computer program includes a chord database 21, a pedal performance database 22, a setting unit 23, a mode switching unit 24, a chord determination unit 25, a key depression state detection unit 26, and a sound generation unit 27.

  The code database 21 records a code table referred to when determining a code in a storage device so that it can be searched by other computer programs. The pedal performance database 22 records a pedal performance table, which is referred to when accompaniment patterns are automatically accompanied, in a storage device so as to be changeable and searchable by other computer programs.

  The setting unit 23 creates a pedal performance table recorded by the pedal performance database 22 based on information input using the front panel 3. Alternatively, the setting unit 23 changes the pedal performance table recorded by the pedal performance database 22 based on information input using the front panel 3.

  The mode switching unit 24 switches the mode based on information input using the front panel 3. The mode includes a normal mode and a simple mode.

  The code discriminating unit 25 refers to the code table recorded by the code database 21 and calculates a code based on the pressed key of the lower keyboard 6. The key pressing state detection unit 26 detects a key pressed on the pedal keyboard 8 and detects a group to which the key belongs.

  When the normal mode is selected by the mode switching unit 24, the sound generation unit 27 generates a musical tone having a pitch corresponding to the depressed key of the upper keyboard 5 and generates the musical tone from the speaker 9 . When the normal mode is selected by the mode switching unit 24, the sound generation unit 27 further generates an accompaniment pattern corresponding to the chord discriminated by the chord discriminating unit 25 and pronounces the accompaniment pattern from the speaker 9. When the normal mode is selected by the mode switching unit 24, the sound generation unit 27 further generates a musical tone having a pitch corresponding to the depressed key of the pedal keyboard 8, and outputs the musical tone from the speaker 9. Pronounce.

  When the simple mode is selected by the mode switching unit 24, the sound generation unit 27 generates a musical tone having a pitch corresponding to the depressed key of the upper keyboard 5 and generates the musical tone from the speaker 9. . When the simple mode is selected by the mode switching unit 24, the sound generation unit 27 further generates an accompaniment pattern corresponding to the chord discriminated by the chord discrimination unit 25, and pronounces the accompaniment pattern from the speaker 9. The sound generation unit 27 refers to the pedal performance table recorded by the pedal performance database 22 when the simple mode is selected by the mode switching unit 24 and during the period when the key of the pedal keyboard 8 is depressed. The accompaniment pattern generated based on the depressed key of the pedal keyboard 8 is generated from the speaker 9.

  FIG. 3 shows a code table recorded by the code database 21. The code table 31 associates the key 32 with the code 33. A key 33 identifies a combination of keys of the lower keyboard 6, and a code 33 indicates a code of an accompaniment pattern accompanied when a combination key identified by the key 32 is depressed. That is, the code determination unit 25 refers to the code table 31 and calculates a code corresponding to the key pressed on the lower keyboard 6 from the code 33.

  FIG. 4 shows a pedal performance table recorded by the pedal performance database 22. The pedal performance table 41 associates chords 42 and groups 43 with accompaniment patterns 44. The code 42 identifies the code calculated by the code determination unit 25. The group 43 identifies a group detected by the key pressing state detection unit 26 and indicates a group into which the pedal keyboard 8 is divided. It is sufficient that the number of the groups is less than the number of keys included in the pedal keyboard 8, for example, a group divided into a white key 11 and a black key 12, a plurality of keys on the right half, and a plurality of keys on the left half. Apply. The accompaniment pattern 44 is an accompaniment pattern that is automatically accompanied when the chord discriminating unit 25 calculates a chord identified by the chord 42 and the key depression state detecting unit 26 detects a group identified by the group 43. Show.

  At this time, the key pressing state detection unit 26 detects a key pressed in the pedal keyboard 8 and detects a group to which the key belongs from the group 43. The sound generation unit 27 refers to the pedal performance table 41 when the simple mode is selected by the mode switching unit 24 and the key of the pedal keyboard 8 is pressed, and the chord calculated by the chord determination unit 25 And an accompaniment pattern corresponding to the key group pressed on the pedal keyboard 8, and the accompaniment pattern is generated from the speaker 9 during a period when the key on the pedal keyboard 8 is pressed.

  The operation of the electronic musical instrument 1 includes a setting operation, a normal mode operation, and a simple mode operation. In the setting operation, the user operates the front panel 3 to create the pedal performance table 41.

  The operation in the normal mode is executed when the normal mode is selected by operating the front panel 3. When the key of the upper keyboard 5 is pressed, the electronic musical instrument 1 generates a musical tone having a pitch corresponding to the key from the speaker 9 immediately after the key is pressed. When the key of the lower keyboard 6 is pressed, the electronic musical instrument 1 refers to the code table 31 and calculates a code corresponding to the key. The electronic musical instrument 1 generates an accompaniment pattern corresponding to the chord from the speaker 9 while the key of the lower keyboard 6 is depressed. When the key of the pedal keyboard 8 is pressed, the electronic musical instrument 1 generates a musical tone having a pitch corresponding to the key from the speaker 9 immediately after the key is pressed. These musical sounds and accompaniment patterns are pronounced in parallel when the upper keyboard 5, the lower keyboard 6 and the pedal keyboard 8 are operated in parallel.

  The operation in the simple mode is executed when the front panel 3 is operated and the simple mode is selected. When the key of the upper keyboard 5 is pressed, the electronic musical instrument 1 generates a musical tone having a pitch corresponding to the key from the speaker 9 immediately after the key is pressed. The electronic musical instrument 1 further calculates a code corresponding to the key with reference to the code table 31 when the key of the lower keyboard 6 is depressed. The electronic musical instrument 1 generates an accompaniment pattern corresponding to the chord from the speaker 9 while the key of the lower keyboard 6 is depressed. The electronic musical instrument 1 refers to the pedal performance table 41 when a key on the lower keyboard 6 is pressed, and a group of keys determined by pressing the lower keyboard 6 and keys pressed on the pedal keyboard 8. The accompaniment pattern corresponding to is calculated. The electronic musical instrument 1 generates the accompaniment pattern from the speaker 9 while the key of the pedal keyboard 8 is depressed. These musical sounds and accompaniment patterns are pronounced in parallel when the upper keyboard 5, the lower keyboard 6 and the pedal keyboard 8 are operated in parallel.

  According to the operation in the simple mode, the user can distinguish between a plurality of accompaniment patterns and automatically cause the electronic musical instrument 1 to accompaniment by distinguishing and pressing the key group of the pedal keyboard 8. At this time, the user does not need to distinguish all the keys of the pedal keyboard 8, and can easily cause the electronic musical instrument 1 to automatically accompany the desired accompaniment pattern.

  Note that the pedal performance table 41 can be replaced with one that is created at the time of design and cannot be changed by the setting unit 23. At this time, the group 43 is divided into the white key 11 and the black key 12. It should be noted that the group 43 need only have a smaller number of keys than the pedal keyboard 8, and other division methods can be applied. The group is divided into a plurality of keys in the right half and a plurality of keys in the left half, a white key 11 in the right half, a white key 11 in the left half, a black key 12 in the right half, and a black in the left half. A group divided into keys 1 is illustrated. The accompaniment pattern 44 is formed from a tone having a tone different from the tone of the tone that forms the accompaniment pattern that is automatically accompanied in response to a key depression of the lower keyboard 6, for example, a bass tone. For example, the accompaniment pattern indicates a pattern formed from the root of a chord calculated by the chord discriminating unit 25 when the white key 11 is detected by the key pressing state detecting unit 26. A pattern formed from the reversed form of the code calculated by the code determination unit 25 when the black key 12 is detected is shown. Alternatively, the accompaniment pattern indicates a rhythm pattern formed from the root of the chord calculated by the chord discriminating unit 25 when the white key 11 is detected by the key pressing state detecting unit 26. Shows the rhythm pattern formed from the fifth tone of the chord calculated by the chord discriminator 25 when the black key 12 is detected.

  According to such an operation in the simple mode, the electronic musical instrument 1 does not play musically wrong musical sounds no matter how the user operates the pedal keyboard. By distinguishing and pressing the white key 11 and the black key 12 of the pedal keyboard 8, the user can distinguish between the accompaniment pattern of the root tone and the accompaniment pattern of the turning form and can automatically accompany the electronic musical instrument 1. At this time, the user does not need to distinguish all the keys of the pedal keyboard 8, and can easily cause the electronic musical instrument 1 to automatically accompany the desired accompaniment pattern. For this reason, even if the user is not an expert, he / she does not play musically wrong music. That is, the electronic musical instrument 1 can give the user the satisfaction of performing with his / her feet when a non-expert user operates the pedal keyboard with his / her feet.

  In another embodiment of the electronic musical instrument according to the present invention, the accompaniment pattern 44 of the pedal performance table 41 in the above-described embodiment is replaced with a pitch. The pitch indicates the root pitch of the chord calculated by the chord discriminating unit 25 when the white key 11 is detected by the key pressing state detecting unit 26, and the black key 12 is detected by the key pressing state detecting unit 26. The pitch of the fifth tone of the chord calculated by the chord discriminating unit 25 when detected is shown. At this time, when the simple mode is selected by the mode switching unit 24 and the key of the pedal keyboard 8 is pressed, the sound generation unit 27 refers to the pedal performance table 41 and presses the key of the lower keyboard 6. The pitch corresponding to the chord discriminated by the above and the group of keys pressed on the pedal keyboard 8 is calculated, and immediately after the key is pressed, a musical tone of that pitch is generated from the speaker 9.

  At this time, in the operation of the simple mode, when the key of the upper keyboard 5 is pressed, the electronic musical instrument 1 generates a musical tone having a pitch corresponding to the key from the speaker 9 immediately after the key is pressed. To do. The electronic musical instrument 1 further calculates a code corresponding to the key with reference to the code table 31 when the key of the lower keyboard 6 is depressed. The electronic musical instrument 1 generates an accompaniment pattern corresponding to the chord from the speaker 9 while the key of the lower keyboard 6 is depressed. The electronic musical instrument 1 refers to the pedal performance table 41 when a key on the lower keyboard 6 is pressed, and a group of keys determined by pressing the lower keyboard 6 and keys pressed on the pedal keyboard 8. The pitch corresponding to is calculated. The electronic musical instrument 1 generates a musical tone of the pitch from the speaker 9 immediately after the key of the pedal keyboard 8 is pressed. These musical sounds and accompaniment patterns are pronounced in parallel when the upper keyboard 5, the lower keyboard 6 and the pedal keyboard 8 are operated in parallel.

  According to the operation in the simple mode, the user distinguishes the root tone or the fifth tone of the chord that is automatically accompanied by distinguishing and pressing the white key 11 and the black key 12 of the pedal keyboard 8. Separately, the electronic musical instrument 1 can be pronounced. At this time, the user does not need to distinguish all the keys on the pedal keyboard 8 and can easily cause the electronic musical instrument 1 to generate a musical tone having a desired pitch. That is, the electronic musical instrument can give the user a satisfaction of playing with his / her feet when a non-expert user operates the pedal keyboard with his / her feet.

FIG. 1 is a perspective view showing an embodiment of an electronic musical instrument according to the present invention. FIG. 2 is a block diagram showing the electronic musical instrument main body. FIG. 3 is a diagram illustrating a code table. FIG. 4 is a diagram showing a pedal performance table.

Explanation of symbols

1: Electronic musical instrument 2: Electronic instrument body 3: Front panel 5: Upper keyboard 6: Lower keyboard 8: Pedal keyboard 9: Speaker 11: White key 12: Black key 21: Chord database 22: Pedal performance database 23: Setting section 24 : Mode switching unit 25: Chord discriminating unit 26: Key pressed state detecting unit 27: Sound generation unit 31: Chord table 32: Key 33: Chord 41: Pedal performance table 42: Chord 43: Group 44: Accompaniment pattern

Claims (7)

A code discriminating unit for discriminating a code based on the depressed key of the chord detection keyboard;
A key depression state detecting unit for detecting a pedal key depressed among a plurality of keys included in the pedal keyboard, and detecting a group to which the pedal key belongs among a plurality of groups dividing the plurality of keys;
A sound generation unit for outputting musical tones corresponding to the group and the chord;
The number of the plurality of groups is less than the number of the plurality of keys. A code discriminating unit for discriminating a code based on the depressed key of the chord detection keyboard;
A key depression state detecting unit for detecting a pedal key depressed among a plurality of keys included in the pedal keyboard, and detecting a group to which the pedal key belongs among a plurality of groups dividing the plurality of keys;
A sound generation unit that outputs a rhythm pattern formed from musical tones corresponding to the group and the chord during a period in which the pedal key is depressed;
The number of the plurality of groups is less than the number of the plurality of keys. In either claim 1 or claim 2,
The plurality of keys are divided into a white key group and a black key group based on a position where each of the plurality of keys is arranged.
The pitch is the root of the chord when the pedal key belongs to the white key group, and the fifth tone of the chord when the pedal key belongs to the black key group. In any one of Claims 1-3,
A mode switching unit for switching between the first mode and the second mode based on the operation content operated by the input device;
The plurality of keys correspond to a plurality of different pitches,
The electronic musical instrument, wherein the sound generation unit outputs the musical tone when in the first mode, and outputs a musical tone having a pitch corresponding to the pedal key when in the second mode. In any one of Claims 1-4,
The sound generation unit further includes an accompaniment pattern corresponding to the chord further automatically. In claim 5,
Further comprising a setting unit for selecting a selected timbre from a plurality of timbres based on operation contents operated by the input device;
The musical tone is formed from the selected timbre,
The accompaniment pattern is an electronic musical instrument formed from timbres other than the selected timbre among the plurality of timbres. A database that associates a combination of a plurality of groups and a plurality of chords that divide a plurality of keys included in the pedal keyboard with a plurality of accompaniment patterns;
A code discriminating unit for discriminating a code based on the depressed key of the chord detection keyboard;
Detecting a pressed key of the pedal keyboard and detecting a key-pressing state detecting unit for detecting a group to which the pedal key belongs among the plurality of groups;
With reference to the database, comprising a sound generation unit that outputs the accompaniment pattern corresponding to the chord and the group of the plurality of accompaniment patterns,
The number of the plurality of groups is less than the number of the plurality of keys.

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