JP2007147711A - Electronic musical instrument and computer program applied to electronic musical instrument - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simultaneously generate accompaniment tone and arpeggio note by matching. <P>SOLUTION: A chord detection part 4 detects chord on the basis of performance information expressing performance for designating the chord in a first performance region 1a. An accompaniment tone generation part 8 outputs to generate the accompaniment tone on the basis of the detection chord and accompaniment pattern data selected from an accompaniment pattern data storage part 2. A note conversion part 5 converts the performance information from a second performance region 1b in response to the detection chord. An arpeggio tone generation part 9 outputs to generate the arpeggio tone on the basis of the performance information expressing the performance in the second performance region 1a or the performance information from the note conversion part 5 and arpeggio pattern data selected from an arpeggio pattern data storage 3. The selected arpeggio pattern data and the accompaniment pattern data are related. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an electronic musical instrument capable of generating accompaniment sounds and arpeggio sounds.

Conventionally, by converting the pitch of accompaniment pattern data (also called accompaniment style data) prepared in advance according to the chord information (chord root and chord type) representing the chord name, An automatic accompaniment function that automatically generates a bass sound is known (see Patent Document 1 below).
Also, one or more pieces of performance information (pitch information) representing a performance by the performer are prepared in advance according to arpeggio pattern data that defines the sound generation timing and the sound of the sound to be generated (including sounds that are related to octaves). There is also known an arpeggio performance in which sound is distributed and automatically generated (see Patent Document 2 below).
Japanese Patent Application Laid-Open No. 06-337677 Japanese Patent Laid-Open No. 11-126074

  However, conventionally, the generation of accompaniment sounds and arpeggio sounds is an independent function, and it has not been considered to simultaneously generate accompaniment sounds and arpeggio sounds. In other words, the accompaniment sound generation function and the arpeggio sound generation function cannot be performed simultaneously.

  The present invention has been made to cope with the above-described problems, and an object thereof is to provide an electronic musical instrument that can simultaneously generate an accompaniment sound and an arpeggio sound without any problems.

  In order to achieve the above object, the present invention is characterized in that performance information input means for inputting performance information representing a performance by a performer, accompaniment pattern data storage means for storing a plurality of accompaniment pattern data, and a plurality of arpeggio patterns Arpeggio pattern data storage means for storing data, accompaniment pattern data selection means for selecting any one of the plurality of accompaniment pattern data, and accompaniment sounds according to the accompaniment pattern data selected by the accompaniment pattern data selection means Accompaniment sound generating means, arpeggio pattern data selecting means for selecting any one of a plurality of arpeggio pattern data in association with the accompaniment pattern data selected by the accompaniment pattern data selecting means, and performance information Input by input means In that a arpeggio tone generating means for generating said selected arpeggio tones in accordance with the arpeggio pattern data by using the performance information.

  In this case, the generation of an accompaniment sound means that a chord and a bass sound related to the chord are automatically generated according to accompaniment pattern data. This accompaniment pattern data defines the generation timing of musical sounds related to chords such as chords and bass sounds, and also defines the type of bass sound (usually one of the chord constituent sounds). In addition, the generation of arpeggio sounds refers to automatically generating musical sounds having pitches specified by one or more pieces of performance information (pitch information) representing performances by the performer according to the arpeggio pattern data. Means. The arpeggio pattern data defines the performance sound (including the sound having an octave relationship) generated and the sound generation timing of the performance sound.

  In the feature of the present invention configured as described above, the arpeggio pattern data selection means associates the arpeggio pattern data of the plurality of arpeggio pattern data in association with the accompaniment pattern data selected by the accompaniment pattern data selection means. Since the selection is made, the selected accompaniment pattern data and arpeggio pattern data are associated with each other. As a result, the accompaniment sound performance and the arpeggio sound performance can be musically matched to each other, and the simultaneous performance of the accompaniment sound performance and the arpeggio sound performance can be easily realized without musical problems. , A performance rich in change due to the simultaneous performance can be obtained.

In another aspect of the present invention, the electronic musical instrument further includes conversion means for converting the performance information input by the performance information input means according to a chord related to the accompaniment sound generated by the accompaniment sound generation means. The arpeggio sound generating means uses the performance information converted by the converting means for generating the arpeggio sound.
According to this, the performance information representing the performance by the performer is converted so as to match the chord used for the generation of the accompaniment sound, and the converted performance information is used for the generation of the arpeggio sound. Therefore, the generated accompaniment sound and the arpeggio sound can be harmonized, and the accompaniment sound performance and the arpeggio sound performance can be more musically matched to each other.

Another feature of the present invention is that the electronic musical instrument includes the performance information input means, the accompaniment pattern data storage means, and the arpeggio pattern data storage means, and a plurality of accompaniment pattern data stored in the accompaniment pattern data storage means. A plurality of accompaniment sound generating means for generating a plurality of accompaniment sounds according to any one of the accompaniment pattern data, and a plurality of performance data input by the performance information input means, and a plurality of information stored in the arpeggio pattern data storage means Arpeggio sound generating means for generating an arpeggio sound according to any of the arpeggio pattern data, and when the accompaniment sound and the arpeggio sound are simultaneously generated by the accompaniment sound generating means and the arpeggio sound generating means, a plurality of sequences The accompaniment sounds of some of the accompaniment sounds Prohibited, and in the provision and generating sequence control means for allowing the occurrence of some other series of accompaniment sounds.
In this case, a partial series of accompaniment sounds whose generation is prohibited is determined for each accompaniment pattern data.

  In another aspect of the present invention configured as described above, the generation sequence control means can inhibit the generation of an accompaniment sound that causes a malfunction due to the simultaneous generation of an accompaniment sound and an arpeggio sound. This also makes it possible to easily realize a simultaneous performance of an accompaniment sound performance and an arpeggio sound performance that are musically matched to each other, and a performance rich in change due to the simultaneous performance can be obtained.

  Furthermore, the implementation of the present invention is not limited to the invention of the electronic musical instrument, and can be implemented as an invention of a computer program and method applied to the electronic musical instrument.

a. Basic Configuration Before describing specific embodiments of an electronic musical instrument according to the present invention, the basic configuration of the electronic musical instrument will be described with reference to the functional block diagram of FIG. The electronic musical instrument includes a performance information input unit 1, an accompaniment pattern data storage unit 2, and an arpeggio pattern data storage unit 3.

  The performance information input unit 1 is composed of a keyboard composed of a plurality of keys, etc., and a first performance area 1a for designating chords and a second performance area 1b for performing normal performance including pitch designation for arpeggio performances. It is divided into and. The chord designation method in the first performance area is any one of various methods such as single finger (mode for designating a chord by root and type) and fingered (mode for designating a chord by a chord component). May be adopted, and the player may be able to select from a plurality of methods. The performance information input unit 1 may receive performance information from an external device such as a MIDI keyboard. The first performance area 1a supplies performance information for designating a chord to the chord detector 4. The chord detector 4 detects a chord designated by the first performance area based on the supplied performance information. As a detection algorithm, an algorithm corresponding to the various chord designation methods is adopted.

  The second performance area 1b supplies performance information representing a normal performance including pitch designation for an arpeggio performance to the pitch converter 5 or directly to the arpeggio sound generator 9. The pitch converter 5 also receives chord information representing the chord detected by the chord detector 4 in addition to the performance information, and converts the pitch represented by the performance information into a pitch that matches the chord according to the chord information. To do. For example, a table (Fig. 8) that defines the available pitches for each chord type is provided, and the table content corresponding to the chord type represented by the supplied chord information is referenced and input from the available pitches. The pitch closest to the recorded performance information is adopted. In addition to outputting pitch information when new performance information is input, the pitch information suitable for the changed chord is also output when the supplied chord changes.

  The accompaniment pattern data storage unit 2 stores a plurality of accompaniment pattern data. The accompaniment pattern data is composed of a plurality of pieces of data that are paired with timing data representing the sounding timing and note codes representing the names of the tones (chord constituent sounds and bass sounds) to be sounded. This defines the accompaniment pattern over (bar). The accompaniment pattern data selection unit 6 selects any one of the plurality of accompaniment pattern data stored in the accompaniment pattern data storage unit 2 in accordance with the player's selection operation, and generates an accompaniment sound generation unit. 8 is supplied. The accompaniment sound generation unit 8 generates and generates chords, bass sounds and the like designated by the chord information at a predetermined timing using the supplied accompaniment pattern data and the chord information from the chord detection unit 4. . In the generation of the accompaniment sound, if an arpeggio sound is generated at the same time, generation of a part of the accompaniment sound is prohibited and generation of the remaining part is allowed.

  The arpeggio pattern data storage unit 3 stores a plurality of arpeggio pattern data. The arpeggio pattern data is composed of a plurality of data paired with timing data and note ranking data, and defines an arpeggio pattern over a predetermined section (for example, one or a plurality of bars). The timing data represents the generation timing of the arpeggio sound. The note ranking data represents a pitch to be pronounced among one or a plurality of pitches represented by the performance information supplied from the second performance area 1b or the pitch converter 5.

  The arpeggio pattern data selection unit 7 is linked to the accompaniment pattern selection unit 6, and is associated with the selected accompaniment pattern data among the plurality of arpeggio pattern data stored in the arpeggio pattern data storage unit 3. Two arpeggio pattern data are selected and supplied to the arpeggio sound generator 9. The arpeggio sound generation unit 9 generates an arpeggio sound using the supplied arpeggio pattern data and performance information from the second performance area 1b or the pitch conversion unit 5.

  In this way, musically matched accompaniment sounds and arpeggio sounds are generated at the same time, so it is possible to easily achieve simultaneous performance of accompaniment sounds and arpeggio sounds without musical problems, Performances rich in change due to the simultaneous performance can be obtained.

b. Specific Embodiment Next, a specific embodiment of the electronic musical instrument according to the present invention will be described. FIG. 2 is an overall block diagram of the electronic musical instrument according to the present invention. This electronic musical instrument includes a keyboard 11, a setting operator group 12, a display 13, and a tone generator circuit 14.

  The keyboard 11 includes a plurality of keys as performance operators for designating the pitch of the generated musical sound, and the operation of each key is detected by a detection circuit 11 a connected to the bus 20. The keyboard 11 is divided into a lower key range and an upper key range with a predetermined key pitch or a key pitch selected and set by the performer, and a plurality of keys belonging to the lower key range are Used for chord performance, a plurality of keys belonging to the upper key range are used for normal performance including arpeggios and melodies. The setting operator group 12 is provided on the operation panel of the electronic musical instrument to instruct the operation of each part of the electronic musical instrument, and these operations are detected by the detection circuit 12 a connected to the bus 20. In particular, the present embodiment includes setting operators such as an accompaniment mode operator, an accompaniment pattern selection operator, an arpeggio mode operator, an OTS mode operator, and a tone selection operator.

  The accompaniment mode operator switches between an on operation that generates an accompaniment sound and an off operation that does not generate an accompaniment sound. The accompaniment pattern selection operator selects one accompaniment pattern data from a plurality of accompaniment pattern data prepared in advance. The arpeggio mode controller switches between an on operation that generates an arpeggio sound and an off operation that does not generate an arpeggio sound. The OTS mode controller is a one-touch setting that automatically sets the performance environment (tone, volume, effect, etc. of the musical tone of normal performance) according to the selected accompaniment pattern, suitable for normal performance (upper range performance) An on operation for selecting a mode (hereinafter referred to as an OTS mode) and an off operation for not selecting the OTS mode are switched. The tone color selection operator selects a tone color of a musical tone generated by normal performance.

  The display 13 is composed of a liquid crystal display, CRT, or the like provided on the operation panel, and displays characters, numbers, figures, and the like. The display content of the display 13 is controlled by a display circuit 13 a connected to the bus 20. The tone generator circuit 14 is connected to the bus 20, generates a digital musical tone signal based on performance data and various musical tone control parameters supplied under the control of the computer unit 30 described later, and outputs the digital musical tone signal to the effect circuit 15. . The effect circuit 15 is connected to the bus 20 and based on the effect control data supplied under the control of the computer unit 30 described later, the digital music signal output from the tone generator circuit 14 is subjected to chorus, reverb, etc. Various musical effects are applied and output to the sound system 16. The sound system 16 includes a D / A converter, an amplifier, a speaker, and the like, converts a supplied digital musical tone signal into an analog musical tone signal, and emits a musical tone corresponding to the analog musical tone signal.

  The electronic musical instrument is also connected to the bus 20 and includes a computer unit 30, an external storage device 41, a MIDI interface circuit 42, and a communication interface circuit 43. The computer unit 30 includes a CPU 31, a timer 32, a ROM 33 and a RAM 34. The external storage device 41 includes a nonvolatile recording medium such as an HDD, FDD, CD-ROM, MO, DVD, and semiconductor memory, and a drive unit for each recording medium, and stores and reads data and programs described later. Is possible. These data and program may be stored in the external storage device 41 in advance, or may be taken in from the outside via the MIDI interface circuit 42 or the communication interface circuit 43.

  The external storage device 41 stores various programs and data in addition to the setting processing program of FIG. 3 and the performance processing program of FIG. In particular, regarding data, the external storage device 41 stores a plurality of accompaniment pattern data, a plurality of arpeggio pattern data, and a plurality of OTS data, and is provided with a pitch name conversion table.

  The plurality of accompaniment pattern data respectively correspond to accompaniment styles such as rock, waltz, and march, and each accompaniment pattern data includes a header portion and a plurality of tracks 1 to n as shown in FIG. The header portion stores accompaniment pattern name data for identifying each accompaniment pattern data, mute track data representing a track whose sound is prohibited when an arpeggio sound is generated, and the like. However, this mute track is a part of the plurality of tracks 1 to n included in one accompaniment pattern data, and there is always a track that is not a mute track among the plurality of tracks 1 to n. Each track has timing data representing sound generation timing and musical sound (chord constituent sound and bass sound) generated over a predetermined section (for example, one or a plurality of bars) with a predetermined chord (for example, Cmaj) as a reference. ), A series of accompaniment pattern data paired with a note code representing a note name is stored over time.

  As shown in FIG. 6A, each arpeggio pattern data includes a header portion and a series of timing data and note rank data over a predetermined section (for example, one or a plurality of bars). The header portion stores arpeggio pattern name data for identifying each arpeggio pattern data, timbre name data representing a manual performance timbre associated with the arpeggio pattern, and the like. The timing data represents the sounding timing of the arpeggio sound. The note rank data is pressed in the upper key range of the keyboard 11 and is arpeggio among the pitch names (pitch) representing the keys stored in the note rank buffer shown in FIG. This specifies the note name of the musical sound to be pronounced as a sound. The note rank data may include velocity data indicating the gate time indicating the sounding time of the arpeggio sound and the volume of the arpeggio sound. As shown in FIG. 7, each OTS data stores accompaniment pattern name data representing accompaniment pattern names, and data representing the tone color, volume, and effects of manual performance sounds suitable for accompaniment.

  The pitch name conversion table is for correcting the pitch name representing the performance key in the upper key range of the keyboard 11 in accordance with the chord used to generate the accompaniment sound. As shown in FIG. 8, this pitch name conversion table is converted into a conversion destination by numbers such as “1”, “2”, “3” other than “0” for each chord type (for example, Maj, M7, etc.). Are represented by the number of semitones from the root note (in other words, based on the C note). In this case, the pitch name of the performance key is changed to the closest pitch name among pitch names designated by numbers such as “1”, “2”, “3” other than “0”. “1”, “2”, “3”, and the like change the candidate name of the conversion destination in accordance with the number of simultaneous key presses, and when the key press number is “1”, “1” "Indicates that the pitch name specified by" "is a conversion-target pitch name candidate. When the number of key presses is “2”, it indicates that the pitch name designated by “1” and “2” is the conversion target pitch name candidate. When the number of key presses is “3”, it indicates that the pitch name specified by “1”, “2”, and “3” is the conversion destination pitch name candidate.

  The MIDI interface circuit 42 can be connected to a MIDI-compatible external device 51 such as another electronic music apparatus or a personal computer, and the electronic musical instrument can communicate with the external device 51 in various programs and data. The communication interface circuit 43 can be connected to a communication network 52 so that the electronic musical instrument can receive various programs and data from the server computer 53 or transmit them to the server computer 53.

  Next, the operation of the embodiment configured as described above will be described. When a power switch (not shown) of the electronic musical instrument is turned on, the computer unit 30 starts to repeatedly execute the setting processing program of FIG. 3 and the performance processing program of FIG. 4 every predetermined short time. When the performer instructs the selection of any one of the plurality of accompaniment pattern data by operating the accompaniment pattern selection operator in the setting operator group 12, the computer unit 30 causes the setting process of FIG. In step S11 in the program, “Yes” is determined, and the selected accompaniment pattern name is updated and stored in step S12. Next, in step S13, it is determined whether the OTS mode is set to the on state. If the OTS mode is set to the on state, the processes of steps S14 and S15 are executed.

  In step S14, the OTS data corresponding to the accompaniment pattern selected from the plurality of OTS data shown in FIG. 7 is read, and the musical tone elements of the generated musical tone such as the tone, volume, and effect in the read OTS data are read. Set. As a result, musical tone elements such as the tone color, volume and effect of the performance sound by the upper key range of the keyboard 11 are set. In step S15, the arpeggio pattern data designating the currently set upper key range timbre (manual timbre) is selected from the plurality of arpeggio pattern data shown in FIG.

  Further, when the OTS mode is turned on by the player by operating the OTS mode operator in the setting operator group 12, the computer unit 30 determines “Yes” in step S16, and the steps S14, S14, The same steps S14 and S15 as S15 are executed. As a result of the processing in steps S11 to S18, as shown in FIG. 7, the timbre of the performance sound by the normal performance including the arpeggio performance in the upper key range of the keyboard 11 is associated with the accompaniment pattern selected by the performer. At the same time, arpeggio pattern data is also determined through the determined tone color.

  Further, when the performer operates the timbre selection operator in the setting operator group 12 to instruct selection of the timbre of the performance sound by the normal performance including the arpeggio performance in the upper key range of the keyboard 11, the computer unit 30. In step S19, “Yes” is determined, and the processes in steps S20 and S21 are executed. In step S20, the tone color of the performance sound by the normal performance is set to the selected tone color. In step S21, similarly to steps S15 and S18, arpeggio pattern data designating the currently set upper key range timbre (manual timbre) is selected. However, in this case, unlike the steps S15 and S18, an arpeggio pattern corresponding to the tone color selected in the step S20 is selected. This is because if the accompaniment mode is not set to the on state or if the OTS mode is not set to the on state, an arpeggio performance corresponding to the tone color directly selected by the performer is to be performed.

  Further, when the performer operates the arpeggio mode operation element in the setting operation element group 12 and the arpeggio mode is switched to the on state, “Yes” is determined in step S22, and the processing in steps S23 and S24 is performed. Execute. In step S23, the mute track data in the currently selected accompaniment pattern data is read, and a mute setting process for prohibiting the generation of accompaniment sounds by the accompaniment pattern data in the track designated by the mute track data is executed. To do. In step S24, the arpeggio mode is set to the on state.

  Further, when the performer operates the arpeggio mode operator in the setting operator group 12 to switch the arpeggio mode from the on state to the off state, it is determined as “Yes” in step S25, and step S26, The process of S27 is executed. In step S26, mute track data in the currently selected accompaniment pattern data is read, and mute setting release processing is performed to allow accompaniment sounds to be generated by the accompaniment pattern data in the track specified by the mute track data. Execute. In step S27, the arpeggio mode is set to the off state.

  Next, a performance processing program for controlling the pronunciation of the accompaniment sound and arpeggio sound in FIG. 4 will be described. When the performer presses or releases any key in the lower key range of the keyboard 11, the computer unit 30 determines “Yes” in step S31, and the key pressed in step S32. A chord is detected using key information (pitch information) representing. In this chord detection, as described above, chord detection processing according to a chord designation method such as single finger or fingered is executed.

  Next, the computer unit 30 determines whether or not there is a key being pressed in the upper key range of the keyboard 11 in step S33. If there is a key being pressed in the upper key range, “Yes” is determined in step S33, and the pitch representing the key being pressed is changed to a pitch that matches the detected chord in step S34. . This pitch conversion process is executed with reference to the pitch conversion table of FIG. First, for each piece of key information (pitch information) representing the key being pressed in the upper key range, the number of semitones from the root note name of the detected chord to the pitch name represented by the key information ( 0-11) is calculated.

  Then, the pitch conversion table column corresponding to the detected chord type (Maj, M7, etc.) is referred to, and the pitch names (“1”, “2”, “ 3) is determined as the converted pseudo-phonetic name. However, the candidate determined as the converted pseudophonic name changes according to the number of key presses in the upper key range. If the key press number is “1”, “1” is recorded. The pitch name with the closest calculated semitone number is determined as the converted pseudo-phonetic name among the pitch names that have been converted. If the number of key presses is “2”, the pitch name having the closest number of semitones calculated from the pitch names recorded with “1” and “2” is determined as the converted temporary pitch name. If the number of key presses is “3”, the pitch name with the closest calculated semitone number is determined as the converted pseudo-phonetic name among the pitch names recorded with “1” to “3”.

  Thus, after determining the converted pseudonym name for each of the key information (pitch information) representing the key being pressed in the upper key range, from the pitch name represented by the key information The number of semitones up to the pseudonym name, that is, the number of changed semitones is calculated. Then, by adding the changed semitone number to the key information (pitch information), the key information whose pitch is converted is finally determined. If the pitch representing the key being pressed exists in the corresponding column of the pitch conversion table, the pitch conversion is omitted, and the key information representing the key being pressed is final as it is. Key information is determined.

  After the pitch conversion processing in step S34, the converted key information is stored in the order according to a predetermined rule in the note ranking buffer shown in FIG. 6B in step S35. The predetermined rule is an order according to, for example, a low-pitched order, a high-pitched order, a key-pressing order, or a random order. For example, if the key information after conversion of the key information representing the key being pressed in the upper key range is C4, E4, G4, and bass order is adopted as the predetermined rule, it is shown in FIG. Thus, key information representing C4, E4, and G4 is stored in the note rank buffer for note ranks 1 to 3.

  Next, in step S36, re-pronunciation processing of the arpeggio sound and accompaniment sound being generated is executed. This re-sounding process is a process for correcting an arpeggio sound and accompaniment sound accompanying a change in the pressed / released key state in the lower key range of the keyboard 11. In other words, when the arpeggio sound and accompaniment sound currently being sounded by the processing of steps S42 and S45 described later are to be changed due to a change in the pressed / released key state in the lower key range, the arpeggio sound and accompaniment sound currently being sounded Is stopped, and a new arpeggio sound and accompaniment sound corresponding to the current timing are determined according to the conditions of steps S42 and S45, and the sound generation is controlled. Even if there is a change in the pressed / released key state in the lower key range, if it is not necessary to change the arpeggio sound and the accompaniment sound that are currently sounding, the arpeggio sound and the accompaniment sound that are currently sounding continue to sound. In addition, when there is no arpeggio sound and accompaniment sound currently being generated, the arpeggio sound and accompaniment sound generation processing is not executed.

  When any key in the upper key range of the keyboard 11 is newly pressed and released, the computer unit 30 determines “Yes” in step S37 and executes the processes of steps S38 and S39. . In step S38, the key information (pitch information) representing the key that has been pressed / released represents the chord that is currently detected for the newly pressed / released key, as in the process of step S34 described above. Convert pitch using chord information. In step S39, the stored contents of the note rank buffer are updated with the key information whose pitch has been converted. That is, when a new key is pressed in the upper key range of the keyboard 11, the key information whose pitch has been converted for the newly pressed key is added to the note rank buffer. Further, when there is a new key release in the upper key range of the keyboard 11, the key information whose pitch has been converted for the newly released key is deleted from the note rank buffer.

  After the processes in steps S37 and S39, the computer unit 30 determines in step S40 whether the arpeggio mode is set to the on state by the operation of the arpeggio mode operator in the setting operator group 12. If it is set to the on state, in step S41, the current progress timing is the generation timing of the note rank data in the selected arpeggio pattern data (see FIG. 6A), that is, not shown. It is determined whether timing data that coincides with the progress timing representing the progress of the music counted over time by the execution of the program exists in the selected arpeggio pattern data. If there is timing data that matches the progress timing, in step S42, according to the note rank corresponding to the timing data, the key information (pitch of pitch) stored in the note rank buffer is stored. Information) is output to the tone generator circuit 14.

  The tone generator circuit 14 generates a digital musical tone signal corresponding to the supplied key information (pitch information) and supplies it to the effect circuit 15. When the note ranking data includes gate time and velocity data, the sounding time and volume of the arpeggio sound are individually controlled. The effect circuit 15 adds an effect to the supplied digital musical tone signal and supplies it to the sound system 16. The sound system 16 converts the digital musical tone signal into an analog musical tone signal and generates a musical tone corresponding to the analog musical tone signal, that is, an arpeggio sound. In this case, if accompaniment pattern data is selected and the OTS mode is on, the arpeggio tone, volume, effect, etc. are selected by the processing of steps S11 to S18 of FIG. 3 using OTS data. Associated with the accompaniment pattern. In addition to the sound of the accompaniment sound, the tone, volume, effect, etc. of the arpeggio sound may be set by the tone setting operator in the setting operator group 12 by the processing in steps S19 to S21 in FIG. is there.

  After the processing of steps S40 to S42, the computer unit 30 determines in step S43 whether the accompaniment mode is set to the on state by the operation of the accompaniment mode operator in the setting operator group 12. If it is set to the on state, in step S44, the current progression timing is generated as a note code (note code representing chord constituent sound, bass sound, etc.) in the selected accompaniment pattern data (see FIG. 5). It is determined whether it is timing, that is, timing data matching the progress timing is present in the selected accompaniment pattern data.

  If there is timing data that coincides with the progress timing, in step S45, the note code corresponding to the timing data is used using the chord information (the root and type information of the chord) representing the currently detected chord. The converted note code (pitch information) is output to the tone generator circuit 14. In the process of step S45, the note code in the track that has been muted by the processes of steps S23 and S26 of FIG. 3 is not processed and is not output to the tone generator circuit. Only the note code in the track that is not set to mute is converted and output to the tone generator circuit 14. As a result, as shown in FIG. 5, a part of the tracks of the accompaniment pattern data is replaced by the arpeggio pattern data.

  As in the case of the arpeggio sound, the tone generator circuit 14 generates a digital musical tone signal corresponding to the note code (pitch information) and supplies it to the effect circuit 15. The effect circuit 15 and the sound system 16 operate in the same manner as in the case of the arpeggio sound, and a musical sound corresponding to the digital musical sound signal, that is, an accompaniment sound is generated. In this case, the musical tone elements such as the tone color, volume, and effect of the accompaniment sound are controlled by the setting operator group 12 or, if there is data for controlling the musical tone element in the accompaniment pattern data, the musical tone element is controlled by the same data. .

  As can be understood from the above operation description, according to the specific embodiment, the accompaniment pattern data and the arpeggio pattern data used for generating the accompaniment sound and the arpeggio sound are obtained by the processing of steps S11 to S18 in FIG. Since they are associated with each other, the accompaniment sound and the arpeggio sound that are automatically generated by the processing of steps S41 to S45 of FIG. 4 are musically matched to each other. As a result, it is possible to easily realize the simultaneous performance of the accompaniment sound performance and the arpeggio sound performance without any musical problems, and it is possible to obtain a performance rich in change due to the simultaneous performance.

  In addition, the processing information in steps S34, S35, S38, and S39 in FIG. 3 uses the performance information of the upper key range of the keyboard 11 used for generating the arpeggio sound to be specified in the lower key range and used for generating the accompaniment sound. It is converted into performance information representing the pitch that matches the chord being played. Therefore, the generated accompaniment sound and the arpeggio sound can be harmonized, and the accompaniment sound performance and the arpeggio sound performance can be more musically matched to each other. Further, by the processing in steps S23 and S26 in FIG. 3 and step S45 in FIG. 4, the generation of accompaniment sounds based on the data of some tracks of the accompaniment pattern data is prohibited, and the accompaniment based on the data of the remaining tracks is performed. Since only the sound is allowed to be generated, it is possible to prohibit the generation of an accompaniment sound that causes a problem due to the simultaneous generation of the accompaniment sound and the arpeggio sound. This also makes it possible to easily realize a simultaneous performance of an accompaniment sound performance and an arpeggio sound performance that are musically matched to each other, and a performance rich in change due to the simultaneous performance can be obtained.

  Furthermore, in carrying out the present invention, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the object of the present invention.

  For example, in the above embodiment, the performance information of the upper key range of the keyboard 11 for generating the arpeggio sound represents the pitch that matches the chord specified in the lower key range and used to generate the accompaniment sound. Now converted to performance information. However, instead of this, the performance information representing the key depression in the upper key range of the keyboard 11 may be used as it is for generating an arpeggio sound without performing the conversion. In this case, the processing in steps S34 and S38 in FIG. 3 may be omitted.

  In the above embodiment, the chord is designated and input by playing the lower key range of the keyboard 11. However, instead of the chord information designated and input by the keyboard 11, chord progression data (including chord data included in a series of song data representing a song) in which chord data is stored according to the progression of the song is prepared. The chord information input based on the chord progression data may be used. Further, the chord progression data may be included in the accompaniment pattern data of the above embodiment, and it may be read and used.

  In the above embodiment, an example in which one arpeggio pattern is associated with one accompaniment pattern has been described. However, a plurality of arpeggio patterns may be associated with one accompaniment pattern. In this case, the player may select any one or a plurality of arpeggio patterns among a plurality of arpeggio patterns associated with one accompaniment pattern by operating an arpeggio pattern selection operator provided separately. . Further, one arpeggio pattern may be associated with a plurality of accompaniment patterns in common.

  Of the multiple tracks in the accompaniment pattern, for tracks that can be replaced with arpeggio patterns (mute tracks), if one accompaniment pattern and multiple arpeggio patterns are associated as described above, the track to be replaced is The same track may be used for all arpeggio patterns, or different tracks may be replaced depending on the arpeggio pattern. When different tracks are used, suitable tracks can be replaced for each arpeggio pattern. Also, the performer may be able to set or correct the track to be replaced.

  In the above embodiment, the accompaniment pattern and the arpeggio pattern are indirectly associated with each other via the OTS data and the tone color. However, the present invention is not limited to this, and information that associates an arpeggio pattern may be included in an accompaniment pattern, or information that associates an arpeggio pattern may be included in OTS data. That is, any method may be used as long as the accompaniment pattern and the arpeggio pattern are associated with each other. The association may be set or corrected by the performer.

  Furthermore, in the above embodiment, the present invention is applied to an electronic musical instrument that employs the keyboard 11 as a performance operator, but instead of a key, a performance operator that designates a pitch using a simple press switch, touch switch, or the like is employed. The present invention may be applied to such electronic musical instruments. In particular, the present invention can be applied to various electronic musical instruments regardless of the form.

It is a functional block diagram which shows the basic composition of the electronic musical instrument which concerns on this invention. 1 is an overall block diagram of an electronic musical instrument according to a specific embodiment of the present invention. It is a flowchart which shows the setting process program performed with the electronic musical instrument of FIG. It is a flowchart which shows the performance processing program performed with the said electronic musical instrument. It is a figure which shows the relationship between accompaniment pattern data and arpeggio pattern data while showing the accompaniment pattern data memorize | stored in the said electronic musical instrument. (A) is a figure which shows the arpeggio pattern data memorize | stored in the said electronic musical instrument, (B) is a figure which shows the note ranking buffer provided in the said electronic musical instrument. It is a figure which shows the relationship between OTS data, an accompaniment pattern, a manual performance tone color, and an arpeggio pattern while showing the OTS data memorize | stored in the said electronic musical instrument. It is a figure which shows the content of the pitch conversion table memorize | stored in the said electronic musical instrument.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Performance information input part, 2 ... Accompaniment pattern data storage part, 3 ... Arpeggio pattern data storage part, 4 ... Chord detection part, 5 ... Pitch conversion part, 6 ... Accompaniment pattern selection part, 7 ... Arpeggio pattern selection part, DESCRIPTION OF SYMBOLS 8 ... Accompaniment sound generation part, 9 ... Arpeggio sound generation part, 11 ... Keyboard, 12 ... Setting operator group, 14 ... Sound source circuit, 30 ... Computer part, 41 ... External storage device

Claims (6)

Performance information input means for inputting performance information representing performance by the performer;
Accompaniment pattern data storage means for storing a plurality of accompaniment pattern data;
Arpeggio pattern data storage means for storing a plurality of arpeggio pattern data;
Accompaniment pattern data selection means for selecting any one of the plurality of accompaniment pattern data;
Accompaniment sound generating means for generating accompaniment sound according to the accompaniment pattern data selected by the accompaniment pattern data selecting means;
Arpeggio pattern data selecting means for selecting any one of the plurality of arpeggio pattern data in association with the accompaniment pattern data selected by the accompaniment pattern data selecting means;
An electronic musical instrument comprising: an arpeggio sound generating means for generating an arpeggio sound according to the selected arpeggio pattern data using the performance information input by the performance information input means. The electronic musical instrument according to claim 1, further comprising:
Conversion means for converting performance information input by the performance information input means according to a chord related to the accompaniment sound generated by the accompaniment sound generation means;
The electronic musical instrument in which the arpeggio sound generating means uses the performance information converted by the converting means for generating the arpeggio sound. Performance information input means for inputting performance information representing performance by the performer;
Accompaniment pattern data storage means for storing a plurality of accompaniment pattern data;
Arpeggio pattern data storage means for storing a plurality of arpeggio pattern data;
Accompaniment sound generating means for generating accompaniment sounds consisting of a plurality of sequences according to any one of the plurality of accompaniment pattern data stored in the accompaniment pattern data storage means;
An arpeggio sound that generates arpeggio sound according to any one of a plurality of arpeggio pattern data stored in the arpeggio pattern data storage means using the performance information input by the performance information input means Generating means;
When an accompaniment sound and an arpeggio sound are simultaneously generated by the accompaniment sound generation means and the arpeggio sound generation means, the generation of any one of the plurality of accompaniment sounds is prohibited, and other An electronic musical instrument comprising generation sequence control means for allowing generation of accompaniment sounds of a part of the sequence.   The electronic musical instrument according to claim 3, wherein a part of the accompaniment sounds whose generation is prohibited is determined for each of the accompaniment pattern data. An electronic device comprising performance information input means for inputting performance information representing a performance by a performer, accompaniment pattern data storage means for storing a plurality of accompaniment pattern data, and arpeggio pattern data storage means for storing a plurality of arpeggio pattern data Applied to musical instruments, to the computer in the electronic musical instrument,
An accompaniment pattern data selection function for allowing a player to select any one of the plurality of accompaniment pattern data;
An accompaniment sound generating function for generating accompaniment sounds according to accompaniment pattern data selected by the performer;
An arpeggio pattern data selection function for selecting any one of the plurality of arpeggio pattern data in association with the accompaniment pattern data selected by the performer;
A computer program for realizing an arpeggio sound generating function for generating an arpeggio sound in accordance with the selected arpeggio pattern data using performance information input by the performance information input means. An electronic device comprising performance information input means for inputting performance information representing a performance by a performer, accompaniment pattern data storage means for storing a plurality of accompaniment pattern data, and arpeggio pattern data storage means for storing a plurality of arpeggio pattern data Applied to musical instruments, to the computer in the electronic musical instrument,
An accompaniment sound generating function for generating an accompaniment sound consisting of a plurality of sequences according to any one of the accompaniment pattern data stored in the accompaniment pattern data storage means;
Arpeggio sound for generating arpeggio sound according to any one of a plurality of arpeggio pattern data stored in the arpeggio pattern data storage means using the performance information input by the performance information input means Generation function,
When an accompaniment sound and an arpeggio sound are simultaneously generated by the accompaniment sound generation function and the arpeggio sound generation function, the generation of any one of the plurality of accompaniment sounds is prohibited, and others And a generation sequence control function for allowing generation of accompaniment sounds of a part of the sequence.

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