JP3654227B2 - Music data editing apparatus and program - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a music data editing apparatus, and more particularly to a music data editing apparatus that can add a musical expression to music data.
[0002]
[Prior art]
If music data such as MIDI data containing only note information is played by an automatic performance device or the like, the performance becomes mechanical and expressionless. In order to make this a more natural performance, it is necessary to add various musical expressions and instrumentality as control data to the music data.
[0003]
One such musical expression is a stroke playing technique, which is a technique for playing plucked strings such as guitars. In guitar strokes, even if the chords are shown as simultaneous chords on the score, the volume and pronunciation of each sound (each string) is used to repel multiple strings in an order that has a certain time difference rather than completely simultaneously. Variations occur in the start time and duration of pronunciation.
[0004]
An apparatus that simulates and automatically adds this variation is proposed by the invention of Japanese Patent Application No. 2001-114175 by the same applicant as the present application.
[0005]
[Problems to be solved by the invention]
Even by adding the above variation to the MIDI data, it is possible to reproduce a chord stroke that is natural to some extent, but there are various other characteristics in the playing method using an actual guitar. For example, there is a mute playing method in which an arbitrary chord is stopped for a short time. In order to realize this mute playing method using MIDI data, it is necessary to change the tone color, volume, etc. of the chord (chord data) to be muted.
[0006]
An object of the present invention is to provide a music data editing apparatus capable of automatically giving a musical expression to music data.
[0007]
[Means for Solving the Problems]
According to one aspect of the present invention, a music data editing apparatus includes: music data reading means for reading music data; detection means for detecting a bar break position of the music data; storage means for storing a plurality of templates; And changing means for changing the musical tone characteristics of the music data by randomly applying the plurality of templates for each bar based on the detected bar break position.
According to another aspect of the present invention, the music data editing apparatus includes music data reading means for reading music data, detecting means for detecting a bar break position of the music data, and storage means for storing a plurality of templates. And changing means for changing the musical tone characteristics of the music data by applying the plurality of templates to each measure in the specified order based on the detected bar break position.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a block diagram showing a hardware configuration of a music data editing apparatus 1 according to an embodiment of the present invention.
[0009]
The music data editing apparatus 1 includes a bus 2, a RAM 3, a ROM 4, a CPU 5, a timer 6, an external storage device 7, a detection circuit 8, a panel operator 9, a display circuit 10, a display 11, a sound source circuit 12, an effect circuit 13, and a sound system 14. , A performance operator 15, a MIDI interface 16, and a communication interface 17.
[0010]
A RAM 3, a ROM 4, a CPU 5, an external storage device 7, a detection circuit 8, a display circuit 10, a sound source circuit 12, an effect circuit 13, a MIDI interface 16, and a communication interface 17 are connected to the bus 2.
[0011]
The user can make various settings using a plurality of panel controls 9 connected to the detection circuit 8. The panel operation element 9 may be any one that can output a signal corresponding to a user input, such as a rotary encoder, switch, pad, fader, slider, mouse, character input keyboard, performance keyboard, joystick, jog shuttle, etc. Something like that.
[0012]
In the present embodiment, the panel operator 9 is used for the user to input various settings, selections, and instructions for starting and stopping automatic performance in various processes described later.
[0013]
The panel operator 9 may be a soft switch or the like displayed on the display 11 that is operated using another operator such as a mouse.
[0014]
The display circuit 10 is connected to the display 11 and can display various information on the display 11. For example, a template editing screen described later is displayed on the display 11. The user makes various settings with reference to the information displayed on the display 11. The display 11 may be configured by connecting an external display device.
[0015]
Further, a touch panel can be used for the display 11. In this case, the user's instruction is input when the user presses a switch or the like displayed on the display 11.
[0016]
The external storage device 7 includes an interface for an external storage device, and is connected to the bus 2 via the interface. The external storage device 7 includes, for example, a floppy disk drive (FDD), a hard disk drive (HDD), a magneto-optical disk (MO) drive, a CD-ROM (compact disk-read only memory) drive, a DVD (Digital Versatile Disc) drive, and a semiconductor. Memory, etc.
[0017]
The external storage device 7 can store various parameters, various data, a program and a template for realizing the present embodiment, and the like.
[0018]
The RAM 3 has a working area for the CPU 5 that stores flags, registers or buffers, various parameters, and the like. The ROM 4 can store various parameters and control programs, or a program for realizing the present embodiment. In this case, it is not necessary to store programs or the like in the external storage device 7 in an overlapping manner. The CPU 5 performs calculation or control according to a control program or the like stored in the ROM 4 or the external storage device 7.
[0019]
The timer 6 is connected to the CPU 5 and supplies a basic clock signal, interrupt processing timing, and the like to the CPU 5.
[0020]
When a hard disk drive (HDD) is connected as the external storage device 7, a control program or a program for realizing the present embodiment may be stored in the hard disk (HDD) in the external storage device 7. it can. By reading a control program or the like from the hard disk into the RAM 3, the CPU 5 can be operated in the same manner as when the control program or the like is stored in the ROM 4. In this way, it is possible to easily add or upgrade a control program or the like.
[0021]
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. New installation and version upgrade of control programs and the like can be easily performed.
[0022]
The tone generator circuit 12 generates a musical tone signal in accordance with the sequence data recorded in the external storage device 7 or the like or the MIDI signal or performance signal supplied from the MIDI device 18 or the like connected to the MIDI interface. To the sound system 14.
[0023]
The effect circuit 13 gives various effects to the digital musical tone signal supplied from the tone generator circuit 12.
[0024]
The sound system 14 includes a D / A converter and a speaker, converts a digital musical tone signal supplied to an analog format, and generates a sound.
[0025]
The tone generator circuit 12 is an analog synthesizer such as a waveform memory system, FM system, physical model system, harmonic synthesis system, formant synthesis system, VCO (Voltage Controlled Oscillator) + VCF (Voltage Controlled Filter) + VCA (Voltage Controlled Amplifier). Any method may be used.
[0026]
The tone generator circuit 12 is not limited to being configured using dedicated hardware, but may be configured using a DSP (Digital Signal Processor) + microprogram, or may be configured using a CPU + software program. Or it can be something like a sound card.
[0027]
Further, a plurality of tone generation channels may be formed by using one tone generator circuit in a time-sharing manner, or a plurality of tone generation circuits may be formed by using one tone generator circuit for each tone generation channel. You may make it comprise.
[0028]
The performance operator 15 is connected to the detection circuit 8 and supplies a performance signal in accordance with the performance operation of the user. In the present embodiment, a performance keyboard and pad are used as the performance operator 15. The performance operator 15 is not limited to these, and any performance operator 15 may be used as long as the user can input performance information. For example, a keyboard for inputting characters, a mouse, a joystick, or the like can be used as the performance operator 15.
[0029]
The MIDI interface (MIDI I / F) 16 can be connected to an electronic musical instrument, other musical instruments, audio equipment, a computer, 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, USB (Universal Serial Bus), IEEE 1394 (Eye Triple E 1394). In this case, data other than MIDI messages may be transmitted and received simultaneously.
[0030]
The MIDI device 18 is an acoustic device, a musical instrument, or the like connected to the MIDI interface 16. The form of the MIDI device 18 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, 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. The user can also input performance information by playing (manipulating) the MIDI device 18.
[0031]
The MIDI device 18 can also be used as an operator for inputting various data other than performance information and various settings.
[0032]
The communication interface 17 can be connected to a communication network 19 such as a LAN (local area network), the Internet, or a telephone line. The communication interface 17 is connected to the server computer 20 via the communication network 19, and the external storage device 7 such as an HDD, or A control program, a program for realizing the present embodiment, music data, and the like can be downloaded from the server computer 20 into the RAM 4 or the like.
[0033]
The communication interface 17 and the communication network 19 are not limited to wired ones and may be wireless. Moreover, you may provide both.
[0034]
FIG. 2 is a conceptual diagram showing the format of the music data MD according to this embodiment. The music data MD is automatic music data that conforms to, for example, the SMF (Standard MIDI File) format.
[0035]
The music data MD includes initial setting information HC recorded at the head, timing data representing the sound generation timing, and event data representing an event at each timing. The music data MD can be composed of a plurality of parts.
[0036]
The initial setting information is data for setting various reproduction modes during reproduction of each part (track), and includes, for example, tone color setting data, volume setting data, tempo setting data, and the like.
[0037]
The timing data is data representing the time for processing various events represented by the event data. The event processing time may be expressed as an absolute time from the start of performance, or may be expressed as a relative time that is an elapsed time from the previous event.
[0038]
The event data is data representing the contents of various events for reproducing the music. Events include note events (note data) representing notes that are directly related to the occurrence of music that is a combination of note-on events and note-off events, pitch change events (pitch bend events), tempo change events, tone change events, etc. A setting event for setting the reproduction mode of the music is included.
[0039]
In each note event, pitch, tone length (gate time) GT, and volume (velocity) VL are recorded. The pronunciation length GT represents the quarter note length as “480”. For example, the eighth note length is “240” and the half note length is “960”. For the volume VL, the minimum volume that can be set is “1”, and the maximum volume is “127”.
[0040]
At timing A of the music data MD1, a chord event CA composed of six note events that are simultaneously generated is recorded, and a chord event CB composed of six note events that are simultaneously pronounced is also recorded at timing B. It is recorded.
[0041]
In this embodiment, a set of a plurality of note events that are sounded simultaneously and a set of a plurality of note events whose sounding timings are almost the same period are defined as chord events. A plurality of note events that are sounded at substantially the same time period are a set of a plurality of note events that are sounded within a time that is considered as a chord musically when played.
[0042]
In the music data MD1, all the note events in the chord event are pronounced at the same time, and the volume is constant. When such data is reproduced, it becomes a mechanical performance without musical expression.
[0043]
In the present embodiment, first, the sound generation timing, sound generation length GT, and sound volume VL of the note event in each chord event of the music data MD1 input from the MIDI device 18 or the like or recorded in the external storage device 7 or the like are determined. By editing, the sounding timing, sounding length GT, and volume VL are varied.
[0044]
After that, muting is performed by changing the tone, volume, effect, etc. of a certain note event in the chord event, and a more natural guitar performance is simulated.
[0045]
FIG. 3 is a flowchart showing the main processing performed by the CPU 5 of FIG. 1 according to the present embodiment.
[0046]
In step SA1, the main process is started, various flags and buffers are initialized, and the process proceeds to the next step SA2.
[0047]
In step SA2, a list of music data MD recorded in the external storage device 7 or the like is displayed on the display device 11 of FIG. 1, and the user selects music data to be edited. The user selects, from the music data displayed in a list, one to be edited (applying a facial expression) using the panel operator 9 or the like. Note that the selection of music data is not limited to this method, and the user may directly specify the path of the music data storage destination. If music data is selected, the process proceeds to the next step SA3.
[0048]
In this embodiment, the music data is edited when the music data is not being reproduced. However, the music data can be edited in real time while the music data is being reproduced. In this case, reproduction of the music data selected in step SA2 is started.
[0049]
In step SA3, a list of parts included in the selected music data is displayed on the display device 11, and the user selects a part to be edited (processing part). The user selects a processing part from among the parts displayed in a list with the panel operator 9 or the like. If the processing part is selected, the process proceeds to the next step SA4.
[0050]
In step SA4, the selected music data is read from the external storage device 7 or the like into a read buffer in the RAM 3, and the reproduction tempo and time signature of the music are detected. Thereafter, the process proceeds to next Step SA5.
[0051]
In step SA5, according to the clock signal supplied from the timer 6, the event of the processing part of the selected music data is read into the work area in the RAM 3. Thereafter, the process proceeds to next Step SA6.
[0052]
In step SA6, it is detected whether or not the event timing read in step SA5 is the music data end timing (last event). If it is the end timing, the process proceeds to step SA7 indicated by a YES arrow. If it is not the end timing, the process proceeds to step SA9 indicated by a NO arrow.
[0053]
In step SA7, other processing is performed. In other processing, the music data in the reproduction buffer in the RAM 3 is saved. In addition, it is possible to start and stop the reproduction of music data, perform other editing processes, record music data, download music data, perform performance processes for performance operators, various settings, and the like. Thereafter, the process proceeds to the next step SA8 and the main process is terminated.
[0054]
In step SA9, it is determined whether the event at the current timing is a chord event. If the event at the current timing is a chord event, the process proceeds to step SA10 indicated by a YES arrow. If the event at the current timing is not a chord event, the process proceeds to step SA13 indicated by a NO arrow.
[0055]
In step SA10, each note event in the chord event of the current timing is assigned to one of strings of a stringed instrument such as a guitar. For example, in the case of a guitar, each note event is assigned to any one of 1 to 6 strings. Thereafter, the process proceeds to next Step SA11.
[0056]
In step SA11, the stroke type is determined. Stroke types include down-picking (playing from low to high strings) and up-picking (playing from high to low strings) in the guitar playing style.
[0057]
In step SA11, it is determined whether the chord event at the current timing should be played by down picking or up picking (determination of stroke type).
[0058]
Whether the picking is down-picking or up-picking differs depending on the tempo of the music, the musical composition, and the like, but in this embodiment, it is assumed that the alternate picking repeats down-picking and up-picking alternately.
[0059]
That is, if the chord event at the current timing is the beat of the front, it is determined to be down picking, and if it is the beat of the back, it is determined to be up picking. When the stroke type is determined, the process proceeds to the next step SA12.
[0060]
In step SA12, the sound generation timing of the note event in the chord event is shifted according to the stroke type determined in step SA11. That is, for down-picking, editing is performed such as shifting the sounding timing so that the notes are assigned in the order from the note event assigned to the lowest string to the note event assigned to the highest string (hereinafter referred to as this step). The process to be performed is called a shift process).
[0061]
If it is up-picking, on the contrary, the sounding timing is shifted so as to sound in the order from the highest string to the note event assigned to the lowest string. When the shifting process ends, the process proceeds to the next step SA13.
[0062]
For details of the shifting process, refer to the column of Examples in Japanese Patent Application No. 2001-114175 by the same applicant as the present application.
[0063]
In step SA13, a mute process described later is performed. The mute process divides one measure into 16 parts (corresponding to a 16th note), determines the mute position according to the template in which the mute state at each position (whether or not to mute) is recorded, and notes at the mute position Change the tone and volume of data. When the mute process ends, the process proceeds to the next step SA14.
[0064]
In step SA14, the event at the current timing or the event for which the editing process has been performed is recorded in the reproduction buffer in the RAM 3. When real-time processing is performed, the sound generation processing of the event at the current timing is performed here. Thereafter, the process proceeds to next Step SA15.
[0065]
In step SA15, an event at the next timing is read into the work area in the RAM 3. Thereafter, the process returns to step SA6 and the same processing is repeated.
[0066]
FIG. 4 is a flowchart showing the mute process performed in step SA13 of FIG. The mute process is a process for determining the mute position and changing the tone color and volume of the note data at the mute position, for example, according to the template shown in FIG.
[0067]
In step SB1, the mute process is started and the process proceeds to the next step SB2.
[0068]
In step SB2, the bar break position of the performance data is detected. It is sufficient to detect only the bar break position immediately before the current timing, but all the bar break positions may be detected and stored, and may be used after the next timing. The bar break position is detected with reference to time signature information. Thereafter, the process proceeds to the next step SB3.
[0069]
In step SB3, the position from the previous bar break position of the note data at the current timing (which number corresponds to the 16th note) is detected. Thereafter, the process proceeds to the next step SB4.
[0070]
In step SB4, information corresponding to the current timing of the template selected in the template selection / editing process to be described later is applied to the note data at the current timing to change the sound generation characteristics such as timbre and volume. Thereafter, the process proceeds to the next step SB5, where the mute process is terminated.
[0071]
FIG. 5 is an example of a template applied in the mute process of FIG. In the template, one measure is divided into 16 (corresponding to 16th notes), and the mute state (whether or not to mute) at each position is recorded. In the figure, “1” is a sound that is muted, and “0” is a sound that is not muted (normal sound).
[0072]
FIG. 6 is an example of a template editing screen. The user can edit the template shown in FIG. 5 on the template editing screen.
[0073]
The template editing screen 21 is displayed on the display 11 of FIG. 1, and 16 sixteenth notes 22 are displayed side by side in the screen. The sixteenth note 22 includes a normal note 22a and a mute note 22b, which correspond to “0” and “1” of the template, respectively.
[0074]
The user operates the pointer 23 using the panel operation element 9 of FIG. 1 and clicks the sixteenth note 22 to switch between the normal note 22a and the note 22b to be muted. In this way, display using a GUI (graphical user interface) simplifies template editing.
[0075]
Further, the user can change the repeat position by operating the pointer 23 using the panel operator 9 of FIG. 1 and moving the repeat start point 24a and the repeat end point 24b to the left and right. Repeat symbols are displayed below the repeat start point 24a and the repeat end point 24b. The rule of repeat by these repeat start point 24a and repeat end point 24b is the same as the repeat symbol of a general music symbol.
[0076]
In this way, when the user changes the repeat position, for example, a template can be applied to a musical piece having 16 or more notes converted to a sixteenth note in one measure such as a 5/4 time signature.
[0077]
FIG. 7 is a flowchart showing the template setting editing process. This template setting editing process is an interruption process started by a user's template setting editing request.
[0078]
In step SC1, template setting editing processing is started, and the process proceeds to next step SC2.
[0079]
In step SC2, a template application method in the mute process of FIG. 4 is set. Template application methods include one that repeatedly uses one template, one that selects a plurality of templates and switches them in order, and one that uses a plurality of templates at random. The user selects one of them. Thereafter, the process proceeds to next Step SC3.
[0080]
In step SC3, a template to be applied in the mute process of FIG. 4 is selected. The template selection differs depending on the template application method selected in step SC2. When one template is used repeatedly, one template is selected. To select multiple templates and switch them in order, select multiple templates and specify their order. It is also possible to specify a repeat position. When a plurality of templates are used randomly, it is not necessary to select them. However, a plurality of templates may be selected and applied randomly among them. Thereafter, the process proceeds to next Step SC4.
[0081]
In step SC4, it is confirmed whether or not to edit the template selected in step SC3. When editing, the process proceeds to step SC5 indicated by a YES arrow. When editing is not performed, the process proceeds to step SC9 indicated by a NO arrow, and the template selection editing process is terminated.
[0082]
In step SC5, the template editing screen 21 of FIG. 6 is displayed on the display 11 of FIG. Thereafter, the process proceeds to next Step SC6.
[0083]
In step SC6, designation of the mute position by the user is accepted. The mute position is designated by operating the pointer 23 with the panel operation element 9 and clicking on the sixteenth note 22 as described above. Thereafter, the process proceeds to next Step SC7.
[0084]
In step SC7, designation of the repeat position by the user is accepted. As described above, the mute position is designated by operating the pointer 23 with the panel operation element 9 and moving the repeat start point 24a and the repeat end point 24b to the left and right. Thereafter, the process proceeds to next Step SC8.
[0085]
In step SC8, the template edited in step SC6 and step SC7 is saved. Thereafter, the process proceeds to the next step SC9, where the template selection / editing process is terminated.
[0086]
As described above, according to the present embodiment, the chord data is automatically designated as either down picking or up picking in the guitar stroke performance method, and the sound timing, volume, and sound time of the note data in the chord data are appropriately varied. Can be given.
[0087]
Further, according to the present embodiment, it is possible to simulate the mute playing method of the guitar by changing the tone color, volume and the like of the note event according to the template.
[0088]
Further, according to the present embodiment, a template for simulating a mute playing method can be easily and appropriately edited using a GUI. In addition, the template loop position and the like can be set.
[0089]
Further, according to the present embodiment, it is possible to perform a performance rich in natural expressions by automatically adding expressions of stroke performance and mute performance to music data having no expression.
[0090]
In this embodiment, the musical tone characteristics are changed by changing the tone color, volume, effect, etc. of the note data at the mute position.For example, the musical tone characteristic is changed by shortening the pronunciation length of the note data at the mute position. May be.
[0091]
In the present embodiment, music data that has not been given a facial expression is used, but it is also possible to use music data for which a stroke type is determined in advance and shift processing is performed.
[0092]
The format of the music data (performance data) is “event + relative time” that shows the time of occurrence of the performance event as the time from the previous event, and the time of occurrence of the performance event is the absolute time in the song or measure. "Event + absolute time" expressed, "pitch (rest) + note length" representing music data by note pitch and note length or rest and rest length, memory area for each performance minimum resolution Can be used in any format such as a “solid method” in which a performance event is stored in a memory area corresponding to the time at which the performance event occurs.
[0093]
The music data editing apparatus 1 of the present embodiment may take any form such as an electronic musical instrument, a form of a personal computer + application software, a karaoke apparatus, a game apparatus, a portable communication terminal such as a mobile phone, and an automatic performance piano.
[0094]
When applied to a portable communication terminal, not only when a predetermined function is completed with only the terminal, but also a part of the function is provided on the server side, and the predetermined function is realized as a whole system composed of the terminal and the server. You may make it do.
[0095]
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.
[0096]
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.
[0097]
In addition, you may make it implement a present Example by the commercially available computer etc. which installed the computer program etc. corresponding to a present Example.
[0098]
In that case, the computer program or the like corresponding to the present embodiment may be provided to the user while being stored in a storage medium that can be read by the computer, such as a CD-ROM or a floppy disk.
[0099]
When the computer or the like is connected to a communication network such as a LAN, the Internet, or a telephone line, a computer program or various data may be provided to the computer or the like via the communication network.
[0100]
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.
[0101]
【The invention's effect】
As described above, according to the present invention, it is possible to provide a music data editing apparatus capable of automatically giving a musical expression to music data.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a hardware configuration of a music data editing apparatus 1 according to an embodiment of the present invention.
FIG. 2 is a conceptual diagram showing a format of music data MD according to an embodiment of the present invention.
FIG. 3 is a flowchart showing main processing according to an embodiment of the present invention performed by a CPU 5 in FIG. 1;
FIG. 4 is a flowchart showing a mute process performed in step SA13 of FIG.
FIG. 5 is an example of a template.
FIG. 6 is an example of a template editing screen.
FIG. 7 is a flowchart showing template editing processing according to the present embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Music data editing apparatus, 2 ... Bus, 3 ... RAM, 4 ... ROM, 5 ... CPU, 6 ... Timer, 7 ... External storage device, 8 ... Detection circuit, 9 ... Panel operation element, 10 ... Display circuit, 11 DESCRIPTION OF SYMBOLS ... Display, 12 ... Sound source circuit, 13 ... Effect circuit, 14 ... Sound system, 15 ... Performance operator, 16 ... MIDI I / F, 17 ... Communication I / F, 18 ... MIDI apparatus, 19 ... Communication network, 20 ... Server computer, 21 ... template editing screen, 22 ... 16th note, 23 ... pointer, 24 ... repeat position

Claims (6)

Music data reading means for reading music data;
Detecting means for detecting a bar break position of the music data;
Storage means for storing a plurality of templates;
A music data editing apparatus comprising: changing means for changing a musical tone characteristic of the music data by randomly applying the plurality of templates for each bar based on the detected bar break position. Music data reading means for reading music data;
Detecting means for detecting a bar break position of the music data;
Storage means for storing a plurality of templates;
A music data editing apparatus comprising: changing means for changing a musical tone characteristic of the music data by applying the plurality of templates to each bar in a specified order based on the detected bar break position.   The music data editing apparatus according to claim 1, further comprising template editing means for editing the template.   The music data editing apparatus according to any one of claims 1 to 3, wherein the musical sound characteristic is at least one of a volume, an effect, and a timbre of music data. Music data reading procedure for reading music data,
A detection procedure for detecting a bar break position of the music data;
Music data having a change procedure for reading the plurality of templates from storage means for storing a plurality of templates based on the detected bar break position and applying the random templates for each bar to change the musical tone characteristics of the music data A program that causes a computer to execute editing procedures. Music data reading procedure for reading music data,
A detection procedure for detecting a bar break position of the music data;
A change procedure for reading the plurality of templates from the storage means for storing a plurality of templates based on the detected bar break position and applying them to each measure in a specified order to change the musical tone characteristics of the music data. A program for causing a computer to execute a music data editing procedure.

Images