JP2012203216A - Accompaniment data generation device and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an accompaniment data generation device capable of generating automatic accompaniment data using phrase waveform data including a chord.SOLUTION: An accompaniment data generation device comprises: chord information acquisition means for acquiring chord information specifying a chord type and a chord root; storage means for storing multiple pieces of phrase waveform data that individually record musical sounds corresponding to accompaniment based on a chord which can be identified by a combination of the chord type and the chord root, and that is individually provided with an identifier which identifies both chord type information for specifying the chord type of the base chord and chord root information for specifying the chord root; retrieval means for retrieving the phrase waveform data, which includes the chord type information corresponding to the chord type specified by the acquired chord information, from the storage means; and output means for outputting the retrieved phrase waveform data as accompaniment data.

Description

  The present invention relates to an accompaniment data generation device.

  Conventionally, a plurality of accompaniment style data by automatic performance data such as MIDI format corresponding to various styles (genres) of music is stored, and accompaniment to the user's performance is performed based on the accompaniment style data selected by the user (player). An automatic accompaniment device is known (see, for example, Patent Document 1).

  In the conventional automatic accompaniment device using automatic performance data, for example, the pitch of the accompaniment style data based on a predetermined chord (chord) such as CMaj is matched with the chord (chord) information detected from the user's performance. Conversion is done.

  Also, an arpeggio performance device that stores arpeggio pattern data as phrase waveform data, adjusts the pitch and tempo to match the user's performance input, and generates automatic accompaniment data is known (for example, Patent Documents). 2).

Japanese Patent No. 2900753 Japanese Patent No. 4274272

  In the automatic accompaniment apparatus using the above-described automatic performance data, it is difficult to perform automatic accompaniment using musical sounds such as folk musical instruments and musical instruments using special musical scales because MIDI sound sources are used to generate musical sounds. Moreover, since the performance is based on the automatic performance data, it is difficult to give a sense of realism due to the live performance of human beings.

  Moreover, in the automatic accompaniment apparatus using conventional phrase waveform data such as the arpeggio performance apparatus described above, only a single accompaniment phrase can be automatically performed.

  An object of the present invention is to provide an accompaniment data generation device capable of generating automatic accompaniment data using phrase waveform data including chords.

  According to one aspect of the present invention, an accompaniment data generation device uses a chord information obtaining unit that obtains chord information that specifies a chord type and a chord root, and a chord that can be identified by a combination of the chord type and the chord root. Phrase waveform data in which a musical sound corresponding to the accompaniment is recorded, and the phrase is given an identifier for identifying chord type information for identifying the chord type of the chord and chord root information for identifying the chord root Storage means for storing a plurality of waveform data, reading means for reading out the phrase waveform data including code type information corresponding to the code type specified by the acquired code information from the storage means, and the read out phrase waveform data Output means for outputting as accompaniment data.

  ADVANTAGE OF THE INVENTION According to this invention, the accompaniment data production | generation apparatus which can produce | generate automatic accompaniment data using the phrase waveform data containing a chord can be provided.

It is a block diagram showing an example of the hardware constitutions of the accompaniment data generation apparatus 100 by the Example of this invention. It is a conceptual diagram showing an example of a structure of the automatic accompaniment data by the Example of this invention. It is a conceptual diagram showing an example of the code type table by the Example of this invention. It is a conceptual diagram showing the other example of a structure of the phrase waveform data by the Example of this invention. It is a flowchart showing the main process by the Example of this invention.

  FIG. 1 is a block diagram illustrating an example of a hardware configuration of an accompaniment data generation device 100 according to an embodiment of the present invention.

  A RAM 7, ROM 8, CPU 9, detection circuit 11, display circuit 13, storage device 15, waveform memory sound source 18, and communication interface (I / F) 21 are connected to the bus 6 of the accompaniment data generation device 100.

  The RAM 7 has a buffer area such as a reproduction buffer, a working area of the CPU 9 that stores flags, registers, various parameters, and the like. For example, automatic accompaniment data described later is loaded into a predetermined area in the RAM 7.

  The ROM 8 can store various data files (for example, automatic accompaniment data AA described later), various parameters and a control program, or a program for realizing the present embodiment. In this case, it is not necessary to store programs or the like in the storage device 15 in an overlapping manner.

  The CPU 9 performs calculation or device control according to a control program stored in the ROM 8 or the storage device 15 or a program for realizing the present embodiment. A timer 10 is connected to the CPU 9, and a basic clock signal, interrupt processing timing, and the like are supplied to the CPU 9.

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

  In this embodiment, the user selects the automatic accompaniment data AA recorded on the storage device 15 or the ROM 8 or acquired (downloaded) from an external device via the communication I / F 21 by operating the setting operator 12. Executes automatic accompaniment start and stop instructions and other setting operations.

  The display circuit 13 is connected to the display 14 and can display various information on the display 14. The display 14 can display various information for setting the accompaniment data generating apparatus 100.

  The storage device 15 is a combination of a storage medium such as a hard disk, an FD (flexible disk or floppy disk (registered trademark)), a CD (compact disk), a DVD (digital multipurpose disk), or a semiconductor memory such as a flash memory, and a driving device thereof. It is composed of at least one. The storage medium may be detachable or built in. The storage device 15 and / or the ROM 8 can preferably store a plurality of automatic accompaniment data AA, a program for realizing each embodiment of the present invention, and other control programs. In addition, when storing the program for implement | achieving each Example of this invention, and another control program in the memory | storage device 15, it is not necessary to memorize | store these according to ROM8. Alternatively, only some programs may be stored in the storage device 15 and other programs may be stored in the ROM 8.

  The sound source 18 is, for example, a waveform memory sound source, and is a hardware or software sound source capable of generating a musical tone signal from at least waveform data (phrase waveform data), and automatic accompaniment data recorded in the storage device 15, the ROM 8, the RAM 7, or the like. A musical tone signal is generated in accordance with performance signals, MIDI signals, phrase waveform data, etc. supplied from automatic performance data or performance operators (keyboards) 22 or external devices connected to the communication interface 21, and various musical effects. Is supplied to the sound system 19 via the DAC 20. The DAC 20 converts the supplied digital musical tone signal into an analog format, and the sound system 19 includes an amplifier and a speaker, and generates a DA converted musical tone signal.

  The communication interface 21 is a general-purpose short-distance wired I / F such as USB or IEEE 1394, a general-purpose network I / F such as Ethernet (registered trademark), a general-purpose I / F such as MIDI I / F, a wireless LAN, or Bluetooth. It is composed of at least one of a communication interface such as a general-purpose short-range wireless I / F such as (registered trademark) and a music dedicated wireless communication interface, and can communicate with an external device, a server, and the like.

  A performance operator (keyboard or the like) 22 is connected to the detection circuit 11 and supplies performance information (performance data) according to the performance operation of the user. The performance operator 22 is an operator for inputting a user's performance, and has a pitch corresponding to the operator operated by the user, and a key-on and key-off signal indicating an operation start timing and an end timing for the user's operator, respectively. Enter as. In addition, various parameters such as velocity values can be input in accordance with a user's performance operation.

  Note that the performance information input by the performance operator (keyboard or the like) 22 includes chord information or information for generating chord information, which will be described later. In addition to the performance operator (keyboard or the like) 22, an external device connected to the setting operator 12 or the communication interface 21 can be used for inputting chord information.

  FIG. 2 is a conceptual diagram showing an example of the configuration of automatic accompaniment data AA according to an embodiment of the present invention.

  The automatic accompaniment data AA according to the embodiment of the present invention performs automatic accompaniment of at least one part (track) in accordance with, for example, when the user plays a melody line using the performance operator 22 of FIG. It is data for.

  The automatic accompaniment data AA corresponds to music genres such as jazz, rock, and classic, and a plurality of types are prepared for each genre, and are identified by an identification number (ID number), an accompaniment style name, or the like. In this embodiment, a plurality of automatic accompaniment data AA is stored in, for example, the storage device 15 or the ROM 8 of FIG. 1, and each automatic accompaniment data AA is assigned an ID number (“0001”, "0002" etc.).

  Each automatic accompaniment data AA is usually prepared for each accompaniment style such as a plurality of rhythm types, music genres, and tempos. Each automatic accompaniment data AA is provided with a plurality of sections according to the music scene such as intro, main, fill-in, and ending. Each section is composed of a plurality of tracks such as a chord track, a bass track, and a drum (rhythm) track. In the present embodiment, for convenience of explanation, the automatic accompaniment data AA is composed of an arbitrary section, and the section includes a plurality of parts (part 1 (track 1) to part 1) including a chord track that performs accompaniment using at least chords. It is assumed that part n (track n)) is included.

  A plurality of accompaniment pattern data AP is associated with each part 1 to n (tracks 1 to n) of the automatic accompaniment data AA. Each accompaniment pattern data AP corresponds to one chord type, and at least one phrase waveform data PW is associated therewith. In this embodiment, as shown in the table of FIG. 3, 37 types of codes such as major code (Maj), minor code (m), and seventh code (7) are supported. Parts 1 to n (tracks 1 to n) store 37 types of accompaniment pattern data AP. The code types that can be handled are not limited to the 37 types shown in FIG. In addition, the user may be able to set a compatible code type.

  When the automatic accompaniment data AA includes a plurality of parts (tracks), at least one part needs to be associated with the accompaniment pattern data AP associated with the phrase waveform data PW. For these parts, accompaniment phrase data based on automatic performance data such as MIDI format may be associated. For example, like the automatic accompaniment data AA to which the ID number “0002” in the example shown in FIG. 2 is given, a part of the accompaniment pattern data AP of Part 1 may be phrase waveform data PW and the others may be MIDI data MD. All of the accompaniment pattern data AP of part n may be MIDI data MD.

  The phrase waveform data PW is phrase waveform data in which a musical sound corresponding to the performance of an accompaniment phrase based on the chord type and chord root (root tone) supported by the associated accompaniment pattern data AP is recorded. ~ The length of multiple bars. For example, in the CMaj-based phrase waveform data PW, musical sounds obtained by performances that mainly use pitches C, E, and G, which are chords of Cmaj (including accompaniments other than chord accompaniment), are digitally sampled and stored. Waveform data. Note that the phrase waveform data PW may include pitches (non-harmonic sounds) other than the constituent sounds of a reference chord (a chord specified by a combination of chord type and chord root). Each phrase waveform data PW is given an identifier capable of specifying the phrase waveform data PW.

  In the present embodiment, each phrase is in the format of “ID (style number) of automatic accompaniment data AA—part (track) number—number representing chord root (root sound) —chord type number (see FIG. 3)”. An identifier is given to the waveform data PW. In the present embodiment, this identifier is used as chord type information for identifying the chord type of the phrase waveform data PW and chord root information for identifying the root note (chord root). Thereby, the chord type and chord root (root sound) which the phrase waveform data PW becomes a reference | standard can be acquired with reference to the identifier of each phrase waveform data PW. Note that information about the code type and the code route may be added to each phrase waveform data PW by a method other than using the identifier as described above.

  In this embodiment, each phrase waveform data PW is prepared with “C” as the chord root (root sound), but the chord root (root sound) may be other than “C”, and one chord type A plurality (2 to 12) of chord root (root sounds) phrase waveform data PW may be prepared. As shown in FIG. 4, when preparing the phrase waveform data PW of all chord roots (12 sounds), the pitch shift process described later is not necessary.

  In addition to the above, the automatic accompaniment data AA includes the automatic accompaniment data including the accompaniment style name, time signature information, tempo information (recording (playback) tempo of the phrase waveform data PW), information on each part, etc. Contains configuration information. In the case of a plurality of sections, each section includes the section name (intro, main, ending, etc.) and the number of bars (for example, one bar, four bars, eight bars, etc.).

  In this embodiment, each part includes accompaniment pattern data AP (phrase waveform data PW) corresponding to each of a plurality of chord types, but accompaniment pattern data AP corresponding to each chord type corresponds to a plurality of parts. (Phrase waveform data PW) may be included.

  The phrase waveform data PW may be stored in the automatic accompaniment data AA or stored separately from the automatic accompaniment data AA, and only link information to the phrase waveform data PW is stored in the automatic accompaniment data AA. May be stored.

  FIG. 5 is a flowchart showing the main processing according to the embodiment of the present invention. This main process is started at the same time when the accompaniment data generating apparatus 100 according to the embodiment of the present invention is turned on.

  In step SA1, main processing is started, and initial setting is performed in step SA2. Initial settings here include selection of automatic accompaniment data AA, setting of chord acquisition methods (input by user performance, input by direct designation by user, automatic input by chord progression information, etc.), setting of performance tempo, key setting, etc. Yes, for example, using the setting operator 12 of FIG. In addition, the automatic accompaniment process start flag RUN is initialized (RUN = 0), and timers, other flags, registers, and the like are initialized.

  In step SA3, it is determined whether a setting change operation by the user has been detected. The setting change operation here is a setting that needs to initialize the current setting, such as re-selection of automatic accompaniment data AA, and does not include, for example, changing the setting of the performance tempo. If a setting change operation is detected, the process proceeds to step SA4 indicated by a YES arrow. When the setting change operation is not detected, the process proceeds to step SA5 indicated by a NO arrow.

  In step SA4, automatic accompaniment stop processing is performed. In the automatic accompaniment stop processing, for example, the timer is stopped, the flag RUN is set to 0 (RUN = 0), and the musical sound is silenced by automatic accompaniment during sound generation. Thereafter, the process returns to SA2, and the initial setting is performed again according to the detected change operation. If automatic accompaniment is not being performed, the process returns to step SA2.

  In step SA5, it is determined whether or not an end operation of the main process (power-off of accompaniment data generating apparatus 100, etc.) has been detected. If an end operation is detected, the process proceeds to step SA24 indicated by a YES arrow, and the main process ends. If not detected, the process proceeds to step SA6 indicated by a NO arrow.

  In step SA6, it is determined whether or not a performance operation by the user has been detected. The detection of the performance action by the user is performed, for example, by detecting whether or not a performance signal is input by operating the performance operator 22 of FIG. 1 or a performance signal is input via the communication I / F 21. If a performance operation is detected, the process proceeds to step SA7 indicated by an arrow “YES” to perform sound generation or mute processing based on the detected performance operation, and then proceeds to step SA8. If the performance operation is not detected, the process proceeds to step SA8 indicated by a NO arrow.

  In step SA8, it is determined whether or not an automatic accompaniment start instruction has been detected. The automatic accompaniment start instruction is performed, for example, when the user operates the setting operator 12 shown in FIG. If an automatic accompaniment start instruction is detected, the process proceeds to step SA9 indicated by a YES arrow. When the start instruction is not detected, the process proceeds to step SA13 indicated by a NO arrow.

  In step SA9, the flag RUN is set to 1 (RUN = 1), and in step SA10, the automatic accompaniment data AA selected in step SA2 or step SA3 is stored in the RAM 7 from, for example, the storage device 15 in FIG. Load into a predetermined area. Thereafter, in step SA11, the immediately preceding code and the current code are cleared, a timer is started in step SA12, and the process proceeds to step SA13.

  In step SA13, it is determined whether an automatic accompaniment stop instruction has been detected. The automatic accompaniment stop instruction is given, for example, by the user operating the setting operator 12 shown in FIG. If an automatic accompaniment stop instruction is detected, the process proceeds to step SA14 indicated by a YES arrow. If a stop instruction is not detected, the process proceeds to step SA17 indicated by a NO arrow.

  In step SA14, the timer is stopped, and in step SA15, the flag RUN is set to 0 (RUN = 0). Thereafter, in step SA16, the automatic accompaniment data generation process is stopped, and the process proceeds to step SA17.

  In step SA17, it is determined whether or not the flag RUN is set to 1. If RUN is 1 (RUN = 1), the process proceeds to step SA18 indicated by a YES arrow. If RUN is 0 (RUN = 0), the process returns to step SA3 indicated by a NO arrow.

  In step SA18, it is determined whether or not input of code information is detected (code information is acquired). If the input of code information is detected, the process proceeds to step SA19 indicated by a YES arrow, and if not detected, the process proceeds to step SA22 indicated by a NO arrow.

  The case where the input of chord information is not detected includes the case where automatic accompaniment is already generated based on some chord information and the case where there is no valid chord information. If there is no valid chord information, chord information is not required, for example, accompaniment data may be generated only for the rhythm part. Alternatively, the process of step SA18 may be repeated without proceeding to step SA22 until valid chord information is input, and generation of accompaniment data may be waited until valid chord information is input.

  The chord information is input by a performance operation using the performance operator 22 shown in FIG. Acquisition of chord information from the user's performance is detected from, for example, a key combination of chord keys, which is a partial area of the performance operator 22 such as a keyboard (in this case, no sound corresponding to the key press is performed). Alternatively, it may be detected from a key pressing state at a predetermined timing width in the entire key range of the keyboard. In addition, a known code detection technique can be used.

  The chord information that is input preferably includes chord type information that specifies the chord type and chord root information that specifies the root note (chord root). You may make it acquire the chord type information and chord route information for specifying a chord type and chord route from the combination of pitches.

  Moreover, the input of the chord information is not limited to the one using the performance operator 22 and may be performed using the setting operator 12. In this case, for example, the code information may be input as a combination of information (characters and numbers) indicating the code root (root sound) and information (characters and numbers) indicating the code type. You may make it input by a symbol and a number (for example, refer the table of FIG. 3).

  Furthermore, the chord information stored in advance (chord progression information) may be read out and obtained at a predetermined tempo without relying on the user's input. Detection may be performed and acquired.

  In step SA19, the code information set in “current code” is set in “previous code”, and the code information detected (obtained) in step SA18 is set in “current code”.

  In step SA20, it is determined whether or not the code information set in “current code” and the code information set in “previous code” are the same. If they are the same, the process proceeds to step SA22 indicated by a YES arrow, and if not, the process proceeds to step SA21 indicated by a NO arrow. Note that the process also proceeds to step SA21 when the first code information is detected.

  In step SA21, for each accompaniment part (track) included in the automatic accompaniment data AA loaded in step SA10, accompaniment pattern data AP (internal phrase) that matches the chord type of the chord information set in “current chord” Waveform data PW) is set to “current accompaniment pattern data”.

  In step SA22, for each accompaniment part (track) included in the automatic accompaniment data AA loaded in step SA10, accompaniment pattern data AP (internal phrase waveform data PW set in “current accompaniment pattern data” in step SA21). ) To read out data at a position suitable for the timer according to the performance tempo of the user.

  In step SA23, for each accompaniment part (track) included in the automatic accompaniment data AA loaded in step SA10, accompaniment pattern data AP (internal phrase waveform data PW) set in “current accompaniment pattern data” in step SA21. ) To extract the chord root information (root sound information) of the chord (chord), and calculate the pitch difference from the chord root (root sound) of the chord information set to “current chord” Based on the calculated value, the data read in step SA22 is pitch-shifted to match the chord root of the chord information set in “current chord” and output as “accompaniment data”. To do. The pitch shift is based on a well-known technique. If the pitch difference is 0, the pitch is not shifted and output as “accompaniment data”. Thereafter, the process returns to step SA3, and the subsequent processing is repeated.

  As shown in FIG. 4, when preparing the phrase waveform data PW for all chord roots (12 sounds), the pitch shift process in step SA23 is omitted. In addition, when only the phrase waveform data PW corresponding to some chord roots is prepared, the chord root corresponding to the chord root having the smallest pitch difference and the same chord type and chord type set to “current chord” is supported. Phrase waveform data PW may be read out and pitch shifted by the pitch difference.

  The automatic accompaniment data AA is selected by the user before starting the automatic accompaniment at step SA2 or during automatic accompaniment at step SA3. However, the chord sequence data stored in advance is reproduced. For example, the designation information of the automatic accompaniment data AA may be included in the chord sequence data or the like, and it may be read and automatically selected. Further, the automatic accompaniment data AA may be selected in advance as a default.

  The instruction to start and stop the reproduction of the selected automatic accompaniment data AA is performed by detecting the user's operation in steps SA8 and SA13, but the start and end of the performance using the performance operator 22 is detected by the user. Then, playback of the selected automatic accompaniment data AA may be automatically started and stopped.

  In addition, when an automatic accompaniment stop instruction is detected in step SA13, the automatic accompaniment may be stopped immediately, but automatically until the end of the phrase waveform data PW being reproduced or at the break (where the sound is cut off). You may make it stop after continuing an accompaniment.

  As described above, according to the embodiment of the present invention, the phrase waveform data PW in which the musical sound waveform is recorded for each chord type is prepared in association with the accompaniment pattern data AP, so that automatic accompaniment according to the input chord is possible. Become.

  In addition, when the tension sound is simply pitch-shifted, there is a case where it becomes an void note. In this embodiment, since the phrase waveform data PW recording the musical sound waveform is prepared for each chord type, a chord including the tension sound is input. Is also possible. In addition, it is possible to follow changes in the chord type that accompany chord changes.

  Furthermore, since the phrase waveform data PW in which the musical sound waveform is recorded for each chord type is prepared, it is possible to prevent deterioration in sound quality when generating accompaniment data. Further, if the phrase waveform data PW is prepared for every chord type for all chord root sounds, it is possible to prevent deterioration of sound quality due to pitch shift.

  Furthermore, since accompaniment patterns are prepared as phrase waveform data, automatic accompaniment with high sound quality is possible. It is also possible to automatically perform accompaniment using a special instrument or a special scale that is difficult to pronounce with a MIDI sound source.

  In the above-described embodiment, the recording tempo of the phrase waveform data PW is stored as attribute information of the automatic accompaniment data AA, but may be stored here for each phrase waveform data PW. In the embodiment, the phrase waveform data PW is prepared for only one recording tempo, but the phrase waveform data PW may be prepared for a plurality of types of tempos.

  The embodiment of the present invention is not limited to the form of the electronic musical instrument, and may be implemented by a commercially available computer or the like in which a computer program or the like corresponding to the embodiment is installed.

  In that case, a computer program or the like corresponding to each embodiment may be provided to the user while being stored in a storage medium that can be read by a computer such as a CD-ROM. In addition, when the computer is connected to a communication network such as a LAN, the Internet, or a telephone line, a computer program, various data, and the like may be provided to the user via the communication network.

  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. Below, a modification is shown in the Example of this invention.

DESCRIPTION OF SYMBOLS 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, 18 ... Waveform memory Sound source, 19 ... sound system, 20 ... DAC, 21 ... communication I / F, 22 ... performance operator, 100 ... accompaniment data generation device

Claims (4)

Code information acquisition means for acquiring code information specifying a code type and a code route;
Phrase waveform data each recording a musical tone corresponding to an accompaniment based on a chord that can be identified by a combination of chord type and chord root, and chord type information and chord root that specify the chord type of the chord based on Storage means for storing a plurality of phrase waveform data provided with an identifier for identifying the code root information for identifying
Reading means for reading out the phrase waveform data including the code type information corresponding to the code type specified by the acquired code information from the storage means;
An accompaniment data generation device comprising: output means for outputting the read phrase waveform data as accompaniment data. Further, a comparing means for comparing the code route information of the read phrase waveform data with the code route specified by the acquired code information;
Pitch adjustment means for adjusting the pitch of the read phrase waveform data based on the result of comparison by the comparison means;
The accompaniment data generation device according to claim 1, wherein the output means outputs phrase waveform data whose pitch is adjusted by the pitch adjusting means as performance data. Phrase waveform data each recording a musical tone corresponding to an accompaniment based on a chord that can be identified by a combination of chord type and chord root, and chord type information and chord root that specify the chord type of the chord based on An accompaniment data generation program for causing a computer having storage means for storing a plurality of phrase waveform data to which an identifier for identifying chord root information for specifying
Code information acquisition procedure for acquiring code information specifying the code type and code route,
A reading procedure for reading out the phrase waveform data including the code type information corresponding to the code type specified by the acquired code information from the storage unit;
An accompaniment data generation program for causing the computer to execute an output procedure for outputting the read phrase waveform data as accompaniment data. Further, a comparison procedure for comparing the code route information of the read phrase waveform data and the code route specified by the acquired code information,
A pitch adjustment procedure for adjusting the pitch of the read phrase waveform data based on the comparison result of the comparison procedure;
The accompaniment data generation program according to claim 3, wherein the output procedure outputs phrase waveform data whose pitch is adjusted by the pitch adjusting means as performance data.

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