JP4572839B2 - Performance assist device and program - Google Patents

Description

  The present invention relates to a performance assisting device.

  Sounds that match the chord with the performance information input by the performer operating the performance controls so that even beginners can perform arpeggios with pitches that match the appropriate chords in the chord progression (for example, chord components) There is known a technique in which sound is distributedly generated based on an arpeggio pattern prepared in advance after conversion to (see, for example, Patent Document 1).

  Also, when you press any key, it will sound at the pitch recorded on the guide track regardless of the pitch of the key that was pressed, and the sound will continue to grow until you release the key, and the note that will sound when you release it. A technique called so-called one-key play in which the sound is muted is known. Even if the actual key pressing timing slightly deviates from the original performance key-on timing shown in the guide track, it is possible to generate a sound with a certain pitch (see, for example, Patent Document 2).

JP 2004-198574 A JP-A-10-232676

  With the above-described arpeggio generation technique, only arpeggio performances that match chords are possible, and a variety of performances that include arpeggio performances and that simultaneously perform in other performance formats cannot be performed.

  In addition, in the one-key play described above, it is impossible to perform other than the performance data shown in the guide track, and the user's performance operation is not reflected in the pitch or the number of sounds to be generated. I can't perform well.

  An object of the present invention is to provide a performance assisting device that can easily perform various performances including arpeggio sounds that match chords.

  According to one aspect of the present invention, a performance assisting device includes performance information input means for inputting first performance information and second performance information including at least pitch information, and chord information supply means for supplying chord information. An arpeggio pattern supplying means for supplying an arpeggio pattern; a first pitch converting means for converting the first performance information into a pitch suitable for the chord information; and pitch conversion for the second performance information. When the selection means for selecting presence / absence and the selection means to perform pitch conversion on the second performance information are selected, the second performance information is converted into a pitch suitable for the chord information. Second pitch conversion means; first tone generation means for generating the pitch-converted first performance information based on the arpeggio pattern; and pitch-converted second performance information or input. Second performance Performance information information has a second sound generating means Could entered timing.

According to another aspect of the present invention, the performance assisting device includes performance information input means for inputting first performance information and second performance information including at least pitch information, and chord information for supplying chord information. A supply means; a melody sound supply means for supplying a melody sound;
Arpeggio pattern supply means for supplying an arpeggio pattern, first pitch conversion means for converting the first performance information into a pitch suitable for the chord information, and presence / absence of pitch conversion for the second performance information And a selection means for selecting the second performance information when the selection means is selected to perform pitch conversion on the second performance information, the second performance information is converted to a pitch that matches the melody sound. 2 pitch conversion means, first sound generation means for generating the pitch-converted first performance information based on the arpeggio pattern, and pitch-converted second performance information or inputted And second sounding means for sounding the second performance information at a timing when the performance information is input.

  Further, according to another aspect of the present invention, the performance assisting device includes performance information input means for inputting first performance information and second performance information including at least pitch information, and chord information for supplying chord information. A supply means; a melody sound supply means for supplying a melody sound; an arpeggio pattern supply means for supplying an arpeggio pattern; and a first pitch conversion for converting the first performance information into a pitch suitable for the chord information. And a first mode that does not convert the pitch conversion for the second performance information, a second mode that performs the pitch conversion according to the chord information, and a third mode that performs the pitch conversion according to the melody sound. When the first mode is selected by the mode selection means for selecting any one of the modes, and the mode selection means, the pitch conversion is not performed on the second performance information, and the second performance information is not converted. When the mode is selected, the second performance information is converted into a pitch that matches the chord information. When the third mode is selected, the second performance information is converted into the melody sound. Second pitch converting means for converting to a pitch suitable for the first pitch, first sound generating means for generating the pitch-converted first performance information based on the arpeggio pattern, and the pitch converted And second sound generation means for sounding the second performance information or the inputted second performance information at a timing when the performance information is inputted.

  ADVANTAGE OF THE INVENTION According to this invention, the performance assistance apparatus which can perform various performances including the arpeggio sound suitable for a chord easily can be provided.

  FIG. 1 is a block diagram showing a hardware configuration of a performance assisting apparatus 1 according to an embodiment of the present invention.

  The performance assisting device 1 is an electronic musical instrument including a performance operator that can be played by a user, such as a keyboard and a pad. It should be noted that the performance assisting device 1 may be any device that can input performance information such as a sound source device and process the inputted performance information even if it does not include a performance operator. But it ’s okay.

  The performance assisting device 1 includes a bus 6, a RAM 7, a ROM 8, a CPU 9, a timer 10, a detection circuit 11, a setting operator 12, a performance operator 22, a display circuit 13, a display 14, an external storage device 15, a MIDI interface 16, and a tone generator circuit 18. , An effect circuit 19, a sound system 20, and a communication interface (I / F) 21.

  A RAM 7, a ROM 8, a CPU 9, an external storage device 15, a detection circuit 11, a display circuit 13, a MIDI interface 16, a sound source circuit 18, an effect circuit 19, and a communication interface (I / F) 21 are connected to the bus 6.

  The RAM 7 has a working area for the CPU 9 that stores a buffer area, flags, registers, various parameters, and the like.

  The ROM 8 can store various parameters, various data, a control program, a program for realizing the present embodiment, and the like. In this case, it is not necessary to store programs or the like in the external storage device 15 in an overlapping manner. The ROM 8 may include a rewritable flash memory or the like in addition to a normal read-only memory.

  The CPU 9 performs calculation or control according to a control program or the like stored in the ROM 8 or the external storage device 15. The timer 10 is connected to the CPU 9 and supplies a basic clock signal, interrupt processing timing, and the like to the CPU 9.

  The user can make various inputs and settings using the setting operator 12 connected to the detection circuit 11. For example, the setting operator 12 may be any switch, pad, fader, slider, character input keyboard, mouse, rotary encoder, joystick, jog shuttle, or the like that can output a signal according to a user input. . The setting operator 12 may be a soft switch or the like displayed on the display 14 that is operated using another operator such as a mouse.

  The performance operator 22 is connected to the detection circuit 11 and supplies performance information according to a user's performance operation. As the performance operator 22, a performance keyboard, pad, or the like can be used. Note that the performance operator 22 is not limited to these, and any performance operator may be used as long as the user can input performance information. Further, an external performance operator may be connected and used via the MIDI interface 16 or the communication interface (I / F) 21.

  The display circuit 13 is connected to the display 14 and can display various information on the display 14. The user refers to information displayed on the display 14 and performs various inputs and settings.

  The external storage device 15 includes an interface for an external storage device, and is connected to the bus 6 via the interface. The external storage device 15 is, for example, a flexible disk or floppy (registered trademark) disk drive (FDD), hard disk drive (HDD), magneto-optical disk (MO) drive, CD-ROM (compact disk-read only memory) drive, DVD ( Digital Versatile Disc) drive, semiconductor memory, and the like.

  When a hard disk drive (HDD) is connected as the external storage device 15, the control program or the program for realizing the present embodiment may be stored in the hard disk (HDD) in the external storage device 15. it can. By reading the control program or the like from the hard disk into the RAM 7, the CPU 9 can be operated in the same manner as when the control program or the like is stored in the ROM 8. In this way, it is possible to easily add or upgrade a control program or the like.

  When a CD-ROM drive is connected in addition to the hard disk drive, a control program or a program for realizing the present embodiment can be stored in the CD-ROM. A control program, a program for realizing the present embodiment, and the like can be copied from the CD-ROM to the hard disk. A new installation or version upgrade of a control program or the like can be easily performed.

  The MIDI interface (MIDI I / F) 16 can be connected to a MIDI device 17, other musical instruments, audio devices, computers, and the like, and can transmit and receive at least a MIDI signal. The MIDI interface 16 is not limited to a dedicated MIDI interface, and may be configured using a general-purpose interface such as RS-232C, IEEE 1394 (I Triple 1394), or a USB interface. In this case, data other than MIDI messages may be transmitted and received simultaneously.

  The MIDI device 17 is an acoustic device, a musical instrument or the like connected to the MIDI interface 16. The form of the MIDI device 17 is not limited to a keyboard instrument, and may be a string instrument type, a wind instrument type, a percussion instrument type, or the like. In addition, the sound source device, the automatic performance device, and the like are not limited to those built in one electronic musical instrument body, but each is a separate device, and each device is connected using a communication method such as MIDI or various networks. May be.

  The tone generator circuit 18 is an accompaniment pattern data recorded in the external storage device 15, ROM 8, RAM 7, etc., performance data or performance signals supplied from the performance operator 22, MIDI equipment 17 connected to the MIDI interface 16, etc. A musical sound signal is generated according to the above and supplied to the sound system 20 via the effect circuit 19.

  The effect circuit 19 gives various musical effects to the musical sound signal supplied from the sound source circuit 18. The sound system 20 includes a D / A converter and a speaker, converts a digital musical tone signal supplied to an analog format and generates a sound.

  The communication interface 21 can be connected to various servers and other electronic musical instruments, computers, and the like via a communication network 3 such as a LAN (local area network) or the Internet.

  The communication interface 21 and the communication network 3 are not limited to wired ones and may be wireless. Moreover, you may provide both. The communication interface 21 may be a built-in one or a detachable one such as a PC card or a USB network adapter.

  FIG. 2 is a block diagram showing functions of the performance assisting device 1.

  The performance operator 22 is a performance operator having a keyboard, for example, and can divide the keyboard into a plurality of performance areas and group and output performance information corresponding to the user's performance operation for each performance area. . In this embodiment, the keyboard is divided into a first area and a second area, and the performance information of each area is used as a first group performance input 221 and a second group performance input 222.

  The first group performance input 221 is subjected to pitch conversion by a chord pitch conversion unit 93 described later, and then an arpeggio sound generation unit 91 generates an arpeggio sound and outputs it as a first group performance output 181.

  The pitch conversion selector (mode selection unit) 122 determines the type of pitch conversion (including no pitch conversion) to be performed on the second group performance input 222 according to the setting data 154. The pitch conversion mode MODE 1 outputs the second group performance input 222 as it is without converting the pitch, and the pitch conversion mode MODE 2 outputs the second group performance input 222 by the melody pitch conversion unit 92. The pitch conversion mode MODE3 performs pitch conversion by the chord pitch conversion unit 93 on the second group performance input 222 and outputs the result.

  In this way, the first group performance input 221 and the second group performance input 222 are separated, and the second group performance input 222 is processed in accordance with the pitch conversion mode, whereby “arpeggio performance matching chords is input. Any one of the following combinations can be performed: “Ama no Azuma”, “Arpeggio performance that matches chords and performance that matches melody”, and “Arpeggio performance that matches chords and performance that matches chords”.

  In the present embodiment, the high sound side divided by the key range is set as the first group, and the low sound side is set as the second group. On the other hand, the performance area may be divided by using the second group for the high-frequency side and the first group for the low-frequency side, which may be divided by the key range, or may be set by the user. The first group performance input 221 and the second group performance input 222 are not limited to inputs from the performance operator 22, but for example, performance information (for example, MIDI data) is transmitted from the MIDI device 17 connected to the MIDI interface 16. It can also be received and divided into a plurality of groups according to the note number of the received performance information. Different timbres may be assigned to the first group performance input 221 and the second group performance input 222, or the same timbre may be assigned.

  The arpeggio pattern selector 121 selects an arpeggio pattern 151 used in the arpeggio sound generation unit 91 described later according to the setting data 154.

  The setting data 154 includes information for instructing the pitch conversion mode to the pitch conversion selector 122 and information for instructing an arpeggio pattern selection to an arpeggio pattern selector described later. The setting data 154 may be recorded in advance in the song data together with chord progression data and melody data, which will be described later, or may be recorded as independent data outside the song data. Further, the setting data 154 can be arbitrarily created by the user other than those prepared in advance. Further, the user may be able to create or edit all of the setting data 154 (designation of pitch conversion mode and designation of arpeggio pattern), or part (designation of pitch conversion mode or designation of arpeggio pattern). May be created or edited.

  The setting data 154 includes data for setting a performance environment suitable for performance using the accompaniment style for each registration and accompaniment style data, and for performing a song having the song name for each song name to be played. It may be configured to be included in data for setting a performance environment suitable for the above.

  The melody supply unit 152 reads melody data stored in advance from the song data, and sequentially supplies at least the pitches of the melody data to the melody pitch conversion unit 92 as the music progresses. The melody data is data included in the song data, and at least a MIDI format automatic performance recording pitch information, pronunciation length information and timing data (sounding timing and mute timing) of the melody part of the music corresponding to the song data. It is data. The melody data is not limited to the format included in the song data, but may be a format stored independently.

  The chord supply unit 153 reads chord progression data stored in advance from the song data, and sequentially supplies the current chord name to the chord pitch conversion unit 93 as the music progresses. The chord progression data is data included in the song data, and is, for example, MIDI format automatic performance data in which at least the chord progression of the music corresponding to the song data is recorded by the chord name and timing data. The chord progression data is not limited to the format included in the song data, but may be a format stored independently.

  The melody supply unit 152 and the chord supply unit 153 are both synchronized with the progress of the music and are also synchronized with each other.

  The melody pitch conversion unit 92 converts the pitch in the performance information input as the second group performance input 222 based on the melody data supplied from the melody supply unit 152 into a pitch that matches the melody, and performs the second group performance. Output as output 182. For example, the melody pitch conversion unit 92 converts the pitch in the performance information to be input at the time when the performance information is input from the pitches of the melody data sequentially supplied from the melody supply unit 152 according to the progress of the music. This is done by converting the pitch of the supplied melody data. When a new performance input is supplied, the pitch is converted and output each time.

  The chord pitch conversion unit 93 converts the pitch in the performance information input as the second group performance input 222 based on the chord progression data supplied from the chord supply unit 153 into a pitch that matches the chord, and converts it to the second group. A performance output 182 is output. In addition, the chord pitch converter 93 converts the pitch in the performance information input as the first group performance input 221 based on the chord progression data supplied from the chord supply unit 153 into a pitch that matches the chord, and arpeggio. The sound is output to the sound generator 91. For example, the chord pitch conversion unit 93 converts the pitch in the performance information to be input into a chord constituent sound closest to the input pitch with reference to the chord conversion table CTT shown in FIG. When a new performance input is supplied, the pitch is converted and output each time.

  The arpeggio tone generation unit 91 stores the pitch information of the first group performance input 221 converted from the chord pitch input from the chord pitch conversion unit 93 in the note rank buffer NOB shown in FIG. Thereafter, the performance information is output as the first group performance output with reference to the pitch information recorded in the note rank buffer NOB in the order recorded in the note rank data in the arpeggio pattern 151 shown in FIG.

  FIG. 3 is a conceptual diagram showing an example of the chord conversion table CTT according to the embodiment of the present invention.

  The chord conversion table CTT is a table that defines the pitches that can be used for each chord type. In this example, the chord conversion table CTT is prepared on the assumption that the key of the music is C major, and can be used for music of other keys by transposing. In this table, priorities in use are assigned to the pitches that can be used for each chord. The pitches with the lower numbers are used first, and the pitches with the number “0” are not used.

  For example, when one sound is input as the second group performance input 222 (or the first group performance input 221), the one sound is output as a pitch with a number “1” and two sounds are input. If so, the two sounds are output as pitches numbered “1” or “2”. That is, “1” with different octaves is output as two sounds, “2” with different octaves is output as two sounds, or “1” and “2” are output as one sound (no octave is required). In addition, input exceeding the number of notes specified as the pitch corresponding to the chord name indicated by the chord progression data is ignored, or sounds corresponding to the number of input notes consisting only of the specified note name are output. Is done.

  Specifically, when the chord name indicated by the chord progression data is “CM7” and any five notes are input as the second group performance input 222, the pitch corresponding to “M7” is used. Since only the priorities “1 to 4” are recorded, the input of the fifth note is ignored, and 4 including any one or more of “shi”, “mi”, “so”, “do” is included. Sound is output. Alternatively, five sounds including one or more of “shi”, “mi”, “so”, “do” are output (for example, “shi”, “mi”, “do”, “ Shi "," Mi ", etc.).

  FIG. 4 is a conceptual diagram of the note ranking buffer NOB according to the embodiment of the present invention. The note ranking buffer NOB is, for example, a buffer area secured in the RAM 7 or the external storage device 15 shown in FIG.

  The note order buffer NOB stores the pitch information output from the chord pitch conversion unit 93 in the order according to a predetermined rule (for example, bass order, treble order, key pressing order, random, etc.).

  In the example shown in the figure, when the chord progression data is CMajor, three or more sounds are input as the second group performance input 222, and the pitch information (C4, E4, G4) output from the chord pitch converter 93 is a low tone. Stored in order.

  FIG. 5 is a conceptual diagram of an arpeggio pattern 151 according to an embodiment of the present invention. For example, a plurality of types of arpeggio patterns 151 are recorded in the ROM 8 or the external storage device 15 shown in FIG.

  The arpeggio pattern 151 includes at least timing data that defines the sound generation timing and note ranks (note ranks in the note rank buffer NOB in FIG. 4) that should be sounded at the sound generation timing indicated by the timing data in time series. 2 is data including an identifier (arpegio pattern ID: not shown) corresponding to the setting data shown in FIG. The arpeggio pattern 151 is preferably a pattern having a length of one measure to several measures. Further, the arpeggio pattern 151 may be configured to include gate time, velocity, and the like. In that case, when an arpeggio sound is generated, musical sounds corresponding to these gate times and velocities are generated.

  For example, if pitch information as shown in FIG. 4 is stored in the note ranking buffer NOB and the arpeggio pattern 151 shown in FIG. 5 is applied, a chord of CMaj in the order of “C4”, “G4”, and “E4” The constituent sounds are distributed.

  6 and 7 are flowcharts showing performance processing according to the embodiment of the present invention.

  In step SA1, performance processing is started. In step SA2, the pitch conversion mode (MODEs 1 to 3) and the arpeggio pattern are set, for example, setting data 154 in the song data loaded in the reproduction buffer or the like (FIG. 2). Read from. Alternatively, the user's manual setting is accepted.

  In step SA3, it is determined whether or not a new chord is supplied from the chord supply unit 153. A new chord is supplied if, for example, the chord at the current timing of the chord progression data in the song data loaded in the playback buffer or the like is different from the chord previously supplied, or the chord is supplied for the first time. This is the case. When a new chord is supplied, the process proceeds to step SA4 indicated by an arrow of YES, and the chord used in the chord pitch conversion unit 93 is updated. Otherwise, the process proceeds to step SA11 indicated by a NO arrow.

  In step SA5, a note during performance operation (during key pressing) is detected in the performance area (key area) of the performance operator 22 corresponding to the first group performance input 221. If a note during performance operation is detected, the process proceeds to step SA6 indicated by a YES arrow, and if not detected, the process proceeds to step SA9 indicated by a NO arrow.

  In step SA6, the pitch information of the note being played (during key depression) detected in step SA5 is converted into pitch information that matches the chord. For example, referring to the chord conversion table CTT shown in FIG. 3 using the chord progression data supplied from the chord supply unit 153 shown in FIG. 2, the pitch in the performance information input as the first group performance input 221 is calculated. Convert to a pitch that matches the chord.

  In step SA7, the pitch information converted in step SA6 is stored in the note rank buffer NOB shown in FIG.

  In step SA8, the pitch of the arpeggio sound that is currently sounding is re-pronounced with pitch information based on the new chord stored in step SA7.

  In step SA9, the current pitch conversion mode is MODE3 (chord pitch conversion mode), and a performance operation is being performed in the performance area (key area) of the performance operator 22 corresponding to the second group performance input 222 (pressing). Detect whether there is a note in the key. If the pitch conversion mode is MODE3 and a note during performance operation is detected, the process proceeds to step SA10 indicated by a YES arrow, and otherwise, the process proceeds to step SA11 indicated by a NO arrow.

  In step SA10, the pitch information of the note being played (during key depression) detected in step SA9 is converted into pitch information that matches the chord. For example, referring to the chord conversion table CTT shown in FIG. 3 using the chord progression data supplied from the chord supply unit 153 shown in FIG. 2, the pitch in the performance information inputted as the second group performance input 222 is calculated. Convert to a pitch that matches the chord. After that, the second group performance input 222 that is currently sounding is re-sounded with the converted pitch information.

  In step SA11, it is determined whether or not new melody data (melody part pitch information) is supplied from melody supply unit 152. The new melody data is supplied when, for example, the pitch of the melody sound (pronunciation event) at the current timing of the melody data in the song data loaded in the playback buffer or the like is the previously supplied pitch. Are different, or the melody sound is supplied for the first time. If a new melody sound is supplied, the process proceeds to step SA12 indicated by an arrow of YES, and the pitch of the melody sound used in the melody pitch conversion unit 92 is updated. Otherwise, the process proceeds to step SA13 indicated by a NO arrow.

  In step SA13, it is detected whether or not a performance operation (key depression) has been newly performed in the performance area (key area) of the performance operator 22 corresponding to the first group performance input 221. If a performance operation is detected, the process proceeds to step SA14 indicated by a YES arrow, and if not detected, the process proceeds to step SA16 indicated by a NO arrow.

  In step SA14, the pitch information of the note by the performance operation (key depression) detected in step SA13 is converted into pitch information that matches the chord. The specific process is the same as in step SA6. In step SA15, the pitch information converted in step SA14 is stored in the note ranking buffer NOB shown in FIG.

  In step SA16, it is detected whether or not the performance operation has been stopped (key release) in the performance area (key area) of the performance operator 22 corresponding to the first group performance input 221. If the stop of the performance operation is detected, the process proceeds to step SA17 indicated by an arrow of YES, and if not detected, the process proceeds to step SA18 of FIG. 7 indicated by an arrow of NO.

  In step SA17, the pitch information corresponding to the performance operator (key) 22 that detected the suspension (release of key) of the performance operation in step SA16 is deleted from the note rank buffer NOB shown in FIG. Thereafter, the process proceeds to step SA18 in FIG.

  In step SA18, it is detected whether or not a performance operation (key depression) has been newly performed in the performance area (key area) of the performance operator 22 corresponding to the second group performance input 222. If a performance operation is detected, the process proceeds to step SA19 indicated by a YES arrow, and if not detected, the process proceeds to step SA23 indicated by a NO arrow.

  In step SA19, the current pitch conversion mode is determined. If the pitch conversion mode is MODE1 (no pitch conversion), the process proceeds to step SA20, if MODE2 (melody pitch conversion), the process proceeds to step SA21, and if MODE3 (chord pitch conversion), the process proceeds to step SA22.

  In step SA20, the note by the performance operation (key depression) detected in step SA18 is output without converting the pitch. That is, in MODE 1, the performance operation in the performance region (key region) of the performance operator 22 corresponding to the first group performance input 221 is distributed and sounded as an arpeggio pattern after pitch conversion, and corresponds to the second group performance input 222. The pitch according to the performance operation of the user in the performance area (key area) of the performance operator 22 is output as it is. Thereafter, the process proceeds to Step SA23.

  In step SA21, the pitch information of the note by the performance operation (key depression) detected in step SA18 is input as the second group performance input 222 according to the melody data supplied from the melody supply unit 152 shown in FIG. The pitch in the information is converted into a pitch that matches the melody tone (for example, the same pitch as the melody tone) and pronounced. Thereafter, the process proceeds to Step SA23.

  In step SA22, the note pitch information obtained by the performance operation (key depression) detected in step SA18 is used as the chord conversion table CTT shown in FIG. 3 using the chord progression data supplied from the chord supply unit 153 shown in FIG. Referring to the pitch information in the performance information input as the second group performance input 221 is converted into a pitch that matches the chord and is pronounced. Thereafter, the process proceeds to Step SA23.

  In step SA23, it is detected whether or not the performance operation has been stopped (key release) in the performance area (key area) of the performance operator 22 corresponding to the second group performance input 222. If the stop of the performance operation is detected, the process proceeds to step SA24 indicated by an arrow of YES, and the note corresponding to the performance operator (key) 22 that detected the stop of the performance operation (key release) in step SA23 is muted (pronounced). Do. If not detected, the process proceeds to step SA25 indicated by a NO arrow.

  In step SA25, it is determined whether or not the current reproduction timing is the occurrence timing of any note rank in the arpeggio pattern 151 set in step SA2. If it is a note generation timing, the process proceeds to step SA26 indicated by an arrow of YES, and otherwise, the process proceeds to step SA27 indicated by an arrow of NO.

  In step SA26, the pitch information in the note rank buffer NOB corresponding to the note rank to be reproduced at the current reproduction timing in the arpeggio pattern 151 set in step SA2 is output.

  In step SA27, it is confirmed whether or not there is a performance end instruction from the user. The determination of the end of the performance may be regarded as the end of the performance when, for example, the end of the reproduction of the currently used chord progression data is performed in addition to the user's instruction. If there is a performance end instruction, the process proceeds to step SA28 indicated by an arrow "YES" to end the performance process. If there is no end instruction, the process returns to step SA3 in FIG.

  In the above-described performance processing, when the performance operation is canceled (key release) in the performance area (key area) of the performance operator 22 corresponding to the first group performance input 221, the arpeggio performance is also canceled. However, the arpeggio sound generation may be continued (with hold) even when the performance operation is stopped (key release). In that case, if the key being pressed is not detected in step SA5 in FIG. 6, the process proceeds to step SA8 instead of step SA9, and the processes in steps SA16 and SA17 are omitted.

  As described above, according to the embodiment of the present invention, the performance information divided into at least two groups is input, and the pitch of the performance information of one group (first group) is adjusted to the pitch that matches the supplied chord. After the conversion, the sound is distributed based on the arpeggio pattern, and the pitch of the performance information of the other group (second group) is selected according to a desired conversion mode from a plurality of pitch conversion modes (MODEs 1 to 3). It is possible to produce a sound with high conversion.

  That is, the performance information divided into a plurality of groups is input, the performance information of the first group is converted into a sound that matches the supplied chord, and then distributed according to the arpeggio pattern, and the performance information of the second group Can be pronounced as it is when the performance information is input.

  In addition, the performance information divided into a plurality of groups is input, the performance information of the first group is converted into a sound that matches the supplied chord, and then distributed according to the arpeggio pattern, and the performance information of the second group Can be generated at the timing when the performance information is input after the sound is converted into a sound suitable for the chord information supplied.

  Furthermore, the performance information divided into a plurality of groups is input, the performance information of the first group is converted into a sound that matches the supplied chord, and then distributed according to the arpeggio pattern, and the performance information of the second group Can be generated at the timing when performance information is input after the sound is converted into a sound that matches the melody sound supplied.

  In the above-described embodiment, the pitch of the performance information of the second group can be generated by performing pitch conversion according to a desired conversion mode from among the three pitch conversion modes (MODEs 1 to 3). However, only two of the three pitch conversion modes described above may be usable.

  The performance assisting device 1 is not limited to an electronic musical instrument, and may be applied to a karaoke device with a musical instrument or a game device. Moreover, when taking the form of an electronic musical instrument, the form is not limited to a keyboard musical instrument, and may be a stringed musical instrument type, a percussion instrument type, or the like. In addition, the sound source device, the automatic performance device, etc. are not limited to those built in one electronic musical instrument body, but each is a separate device, and each device is connected using communication means such as MIDI or various networks. There may be.

  Although the present invention has been described with reference to the embodiments, the present invention is not limited thereto. It will be apparent to those skilled in the art that various modifications, improvements, combinations, and the like can be made.

It is a block diagram showing the hardware constitutions of the performance auxiliary device 1 by the Example of this invention. 3 is a block diagram showing functions of the performance assist device 1. FIG. It is a conceptual diagram which shows an example of the chord conversion table CTT by the Example of this invention. FIG. 3 is a conceptual diagram of a note ranking buffer NOB according to an embodiment of the present invention. It is a conceptual diagram of the arpeggio pattern 151 by the Example of this invention. It is a flowchart showing the performance process by the Example of this invention. It is a flowchart showing the performance process by the Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Performance auxiliary device, 3 ... Communication network, 6 ... Bus, 7 ... RAM, 8 ... ROM, 9 ... CPU, 10 ... Timer, 11 ... Detection circuit, 12 ... Setting operation element, 13 ... Display circuit, 14 ... Display 15 ... external storage device, 16 ... MIDI I / F, 17 ... MIDI device, 18 ... sound source circuit, 19 ... effect circuit, 20 ... sound system, 21 ... communication I / F, 22 ... performance operator, 91 ... Arpeggio Sound generation unit, 92 ... Melody pitch conversion unit, 93 ... Chord pitch conversion unit, 121 ... Arpeggio pattern selector, 122 ... Pitch conversion selector, 151 ... Arpeggio pattern, 152 ... Melody supply unit, 153 ... Chord supply unit, 154 ... setting data, 181 ... first group performance output section, 182 ... second group performance output section, 221 ... first group performance input section, 222 ... second group Flop performance input section

Claims (6)

Performance information input means for inputting first performance information and second performance information including at least pitch information;
Chord information supply means for supplying chord information;
An arpeggio pattern supply means for supplying an arpeggio pattern;
First pitch converting means for converting the first performance information into a pitch suitable for the chord information;
Selecting means for selecting presence or absence of pitch conversion for the second performance information;
Second pitch conversion means for converting the second performance information into a pitch suitable for the chord information when the selection means selects to perform pitch conversion on the second performance information; ,
First sounding means for sounding the pitch-converted first performance information based on the arpeggio pattern;
A performance assisting device comprising: second sounding means for sounding the second performance information subjected to pitch conversion or the input second performance information at a timing when the performance information is input. Performance information input means for inputting first performance information and second performance information including at least pitch information;
Chord information supply means for supplying chord information;
A melody sound supply means for supplying a melody sound;
An arpeggio pattern supply means for supplying an arpeggio pattern;
First pitch converting means for converting the first performance information into a pitch suitable for the chord information;
Selecting means for selecting presence or absence of pitch conversion for the second performance information;
Second pitch conversion means for converting the second performance information into a pitch suitable for the melody sound when the selection means selects to perform pitch conversion on the second performance information; ,
First sounding means for sounding the pitch-converted first performance information based on the arpeggio pattern;
A performance assisting device comprising: second sounding means for sounding the second performance information subjected to pitch conversion or the input second performance information at a timing when the performance information is input. Performance information input means for inputting first performance information and second performance information including at least pitch information;
Chord information supply means for supplying chord information;
A melody sound supply means for supplying a melody sound;
An arpeggio pattern supply means for supplying an arpeggio pattern;
First pitch converting means for converting the first performance information into a pitch suitable for the chord information;
From the first mode that does not convert the pitch conversion for the second performance information, the second mode that performs the pitch conversion according to the chord information, and the third mode that performs the pitch conversion according to the melody sound Mode selection means for selecting one of them,
When the first mode is selected by the mode selection means, pitch conversion is not performed on the second performance information, and when the second mode is selected, the second performance information is not selected. Is converted into a pitch suitable for the chord information, and when the third mode is selected, the second pitch conversion means converts the second performance information into a pitch suitable for the melody sound. When,
First sounding means for sounding the pitch-converted first performance information based on the arpeggio pattern;
A performance assisting device comprising: second sounding means for sounding the second performance information subjected to pitch conversion or the input second performance information at a timing when the performance information is input. A performance information input procedure for inputting first performance information and second performance information including at least pitch information;
Chord information supply procedure for supplying chord information;
An arpeggio pattern supply procedure for supplying an arpeggio pattern;
A first pitch conversion procedure for converting the first performance information into a pitch suitable for the chord information;
A selection procedure for selecting whether or not pitch conversion is performed on the second performance information;
A second pitch conversion procedure for converting the second performance information into a pitch suitable for the chord information when it is selected to perform the pitch conversion on the second performance information by the selection procedure; ,
A first sounding procedure for sounding the pitch-converted first performance information based on the arpeggio pattern;
A performance assistance program for causing a computer to execute the second sound generation procedure for sounding the second performance information subjected to pitch conversion or the input second performance information at a timing when the performance information is input. A performance information input procedure for inputting first performance information and second performance information including at least pitch information;
Chord information supply procedure for supplying chord information;
A melody sound supply procedure for supplying a melody sound;
An arpeggio pattern supply procedure for supplying an arpeggio pattern;
A first pitch conversion procedure for converting the first performance information into a pitch suitable for the chord information;
A selection procedure for selecting whether or not pitch conversion is performed on the second performance information;
A second pitch conversion procedure for converting the second performance information into a pitch suitable for the melody sound when it is selected to perform the pitch conversion on the second performance information by the selection procedure; ,
A first sounding procedure for sounding the pitch-converted first performance information based on the arpeggio pattern;
A performance assistance program for causing a computer to execute the second sound generation procedure for sounding the second performance information subjected to pitch conversion or the input second performance information at a timing when the performance information is input. A performance information input procedure for inputting first performance information and second performance information including at least pitch information;
Chord information supply procedure for supplying chord information;
A melody sound supply procedure for supplying a melody sound;
An arpeggio pattern supply procedure for supplying an arpeggio pattern;
A first pitch conversion procedure for converting the first performance information into a pitch suitable for the chord information;
From the first mode that does not convert the pitch conversion for the second performance information, the second mode that performs the pitch conversion according to the chord information, and the third mode that performs the pitch conversion according to the melody sound A mode selection procedure for selecting one of them,
When the first mode is selected by the mode selection procedure, pitch conversion is not performed on the second performance information, and when the second mode is selected, the second performance information is not selected. Is converted into a pitch suitable for the chord information, and when the third mode is selected, a second pitch conversion procedure for converting the second performance information into a pitch suitable for the melody sound When,
A first sound generation procedure for sounding the pitch-converted first performance information based on the arpeggio pattern;
A performance assisting program for causing a computer to execute the second sound production procedure for sounding the second performance information after the pitch conversion or the inputted second performance information at a timing when the performance information is inputted.

Images