JP2002229561A - Automatic arranging system and method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily form playing data of desired arrangement in accordance with existing playing data. SOLUTION: The playing data of original music consisting of the playing data of plural tracks is prepared. The playing data of the track corresponding to the melody part among pieces of the playing data of the original music is fetched and the playing data of the melody part of the arranged music is formed in accordance with the playing data of the fetched track. The playing data by each of respective partial sections is selectively fetched out of the playing data of the plural tracks exclusive of the track corresponding to the melody part among pieces of the playing data of the original music and the playing data of at least one part for accompaniment in the arranged music is formed in accordance with the combinations of the playing data by each of the respective fetched partial sections.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic arranging apparatus and method for generating performance data of a tune arranged based on performance data of a tune (hereinafter referred to as "original tune") from which the arrangement is based.

[0002]

2. Description of the Related Art A tone generator capable of generating a tone signal based on performance data (hereinafter simply referred to as MIDI data) in accordance with the MIDI standard is generally called a "MIDI tone generator". The MIDI sound source is now widely used not only as a sound source for a dedicated musical instrument such as an electronic musical instrument, but also as a sound source for various other applications such as a karaoke accompaniment sound source and a "ringtone melody" sound source for a mobile phone. . Along with this, MIDI data as music software,
Many songs are prepared, and can be purchased by general users via a sales channel. However, most of the MIDI data of existing songs are created so that the original performance of the original song (the performance recorded on the CD or the like of the song) can be reproduced. Or the performance part of
Often composed of complex music. for that reason,
In the case where the original music is composed of an orchestra, for example, when the user desires performance data arranged in a piano solo version, the music performance data provider may not easily respond to such user's wishes. It was difficult. For example, even if only the piano part or the keyboard part is taken out of the orchestra-organized original music performance data, it will not be the performance data arranged for piano solo, and the atmosphere of the original music will be impaired. Therefore, it must be rearranged in earnest from the beginning for piano solo. Therefore, the provider of the music performance data has not been able to respond to the individual user's detailed arrangement requests. In addition, since high-level musical knowledge is required for full-scale arranging, it is difficult for many general users to perform the desired arranging themselves. A similar problem occurs in arrangements suitable not only for piano solos but also for guitar solos and other specific instrument solos.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and provides an automatic arrangement apparatus and method which can easily generate performance data of a desired arrangement based on existing performance data. What you want to do.

[0004]

According to the present invention, there is provided an automatic arrangement device for acquiring performance data of an original music composed of performance data of a plurality of tracks, and a track corresponding to a melody part among the performance data of the original music. Arrangement melody generating means for generating performance data of a melody part of an arranged music piece based on the performance data of the retrieved music track; and Selectively retrieves performance data for each partial section from the performance data of the plurality of tracks, and generates performance data of at least one accompaniment part in the arranged music based on a combination of the retrieved performance data for each partial section. And an arrangement accompaniment generating means.

[0005] For example, when it is desired to obtain an arrangement music in a piano solo format, as a typical example, an arrangement music composition of a right-hand performance part (melody part) leading a melody and a left-hand performance part (accompaniment part) playing accompaniment may be used.
In this case, the arrangement melody generating means may generate the performance data of the melody part of the arrangement music, and the arrangement accompaniment generation means may generate the performance data of one accompaniment part in the arrangement music. The performance data of the accompaniment part is
Since the performance data of each partial section is selectively extracted from the performance data of the parts other than the melody part among the performance data of the original music and generated based on a combination of the extracted performance data of each partial section, the original data is generated. By extracting a good accompaniment portion for each partial section of the music, a good accompaniment arrangement can be created relatively easily. Note that each partial section is a section obtained by appropriately dividing the entire music along the time axis, and may be divided into sections corresponding to an appropriate number of measures such as one measure, two measures, or four measures. .

[0006] For example, when it is desired to obtain an arrangement tune in a piano playing narration format, as a typical example, a narration (vocal or song) part (ie, a melody part) leading a melody and a treble part of an accompaniment are played. It is preferable to arrange a right-handed performance part (accompaniment part 1) and a left-handed performance part (accompaniment part 2) that plays the bass part of the accompaniment. In order to create the arrangement performance data of two accompaniment parts, for example, the arrangement accompaniment generation means temporarily converts the performance data of one accompaniment part based on a combination of the extracted performance data for each partial section. And generate
The performance data of two accompaniment parts may be generated by dividing the performance data of one accompaniment part that is temporarily generated into two parts according to the range.

The arrangement melody generating means and the arrangement accompaniment generating means may not only take out the performance data of the original music but also make it possible to appropriately process the performance data. This performance data processing may be performed by automatic processing, or may be performed by manually intervening a manual operation by a human being. Also, the operation of extracting the performance data for each partial section may be performed on the display. A manual selection operation by a human may be appropriately performed while watching the display of each part of the original music and the divisional display of the partial sections.

[0008] For example, the arrangement melody generating means extracts the performance data of one track corresponding to the melody part from the performance data of the original music, and extracts the other track of the one track of the performance data of the original music. The performance data of the melody part of the arranged music is obtained based on the performance data of a part of the tune arranged on the basis of adding the performance data of a part of the other track to the performance data of the one track. It may be generated. Thereby, parts other than the main melody, such as the intro, interlude, and ending, in the original music can be included in the melody part of the arranged music. Or if the melody performance of the original song is shared among multiple tracks,
In case the melody phrase is temporarily played on a track different from the original melody track,
The melody of the arranged song can be accurately determined. For example, if there is a silent section for more than a predetermined period in the performance data of one track selected as a melody part in the original music, in that section,
It is possible that a melody performance is performed on another track, or an intro or an interlude is performed. In such a case, the melody performance data or intro or interlude on the other track is added to the silent section. By adding (merging) the performance data of the song, the performance data of the melody part of the arranged music for one track can be generated, and the melody of the arranged music can be accurately determined. Also, it is possible to easily apply a melody range peculiar to the arranged music. For example, in a melody part of an original tune, in a section having a small number of notes, performance data of another part is added, thereby enriching the melody of the arranged tune. In this case, it is preferable that the performance data of another track of the original music added to the melody part of the arranged music or a partial section of another part be not used as the performance data of the accompaniment part of the arranged music. This is to prevent the melody and accompaniment from becoming monotonous if they have the same melody.

According to another aspect of the present invention, there is provided an automatic arrangement apparatus, comprising: means for acquiring performance data of an original music composed of performance data of a plurality of tracks; Primary data generating means for selectively extracting performance data for each track and generating arrangement music performance data for one track based on a combination of the performance data for each extracted partial section; Secondary data generating means for generating performance data of an arrangement music composed of two tracks by dividing the arrangement music performance data into two parts according to the range. This corresponds to the above-described arrangement of the "playing narration" type in which the performance data of the "narration" (vocal or song) part (that is, the melody part) is omitted. This also makes it possible to easily create an arrangement for a piano including a treble portion (right hand performance part) and a bass portion (left hand performance part). Of course, the present invention can be applied not only to the piano but also to a simple arrangement for other musical instruments.

[0010] In the present invention, "original music" is a broad term meaning a music that is a source of arrangement.
It does not refer only to the first edition of a song. Therefore, any song may be used as long as the song is the source of the arrangement. In other words, data is created / arranged in a different arrangement
The stored songs are called "original songs". For example, a song created and stored in an arrangement of multiple instruments that audibly resembles the performance recorded on the record or CD of the first version of a certain song or that reproduces the score of the first version can of course be an "original song", Songs created and stored with arrangements of multiple instruments that are acoustically different from the performances recorded on the first edition records or CDs can also be "original songs". In addition, music created and stored in an arrangement of a single instrument, not limited to an arrangement of a plurality of instruments, can also be an “original song”. For example, a song composed of a "melody part", a "right-hand keyboard performance part", and a "left-hand keyboard performance part" arranged for piano playing is called a "right-hand keyboard performance part".
When an attempt is made to arrange a song in a piano solo format composed of a song and a left-hand performance part of a keyboard, the original song in a piano-speaking format corresponds to the “original song”. In the present invention, "arranged music" indicates a music obtained as a result of the current arrangement processing. Therefore, based on the music obtained in the past by the arrangement process according to the present invention, if the arrangement is to be arranged in yet another form, the music obtained in the past by the arrangement process according to the present invention,
This corresponds to the “original song” in the present invention.

The present invention can be constructed and implemented not only as an apparatus invention but also as a method invention. Further, the present invention can be implemented in the form of a program of a processor such as a computer or a DSP, or can be implemented in the form of a recording medium storing such a program. As the processor, not only a general-purpose processor such as a computer that executes an arbitrary software program but also a dedicated processor in which dedicated logic is assembled by hardware may be used.

[0012]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a block diagram showing an example of a hardware configuration of an electronic musical instrument or a computer that can be used to implement an automatic arrangement device and method according to the present invention. In FIG. 1, an electronic musical instrument or a computer is controlled by a microcomputer including a microprocessor unit (CPU) 1, a read only memory (ROM) 2, and a random access memory (RAM) 3. A control program for causing a computer to execute the automatic arranging method according to the present invention is stored in the ROM 2 or the RAM 3, and an automatic arranging method according to the present invention is executed by executing an automatic arranging process according to the control program. Is performed. Further, an embodiment of the automatic arrangement apparatus according to the present invention is constituted by the electronic musical instrument or the computer on which the control program is executable. Of course,
Not only programs for automatic arrangement processing but also control programs and various data for various other applications such as automatic performance processing and musical sound waveform generation processing are stored in a memory (ROM 2 or RAM 3 or HDD or other external storage medium). The application can be executed.

For the CPU 1, a read only memory (ROM) 2, a random access memory (RAM) 3, an external storage device drive 6, a MIDI interface (I / F) 7, a communication interface 8 via a data and address bus 4 , Performance operators (keyboard etc.) 9, panel operators 1
0, an electronic display (such as a CRT or a liquid crystal display panel) 11, a printer 12, a sound source circuit 13, and an effect circuit 14 are connected to each other. The tone signal generated by the tone generator 13 and given an effect by the effect circuit 14 can be acoustically generated through the sound system 15. Also,
In connection with the performance operator (keyboard etc.) 9, performance guide instruction means (not shown) for assisting the performance operation by the user may be provided. A timer 5 is connected to the CPU 1 to measure various times, an interrupt clock in timer interrupt processing (interrupt processing),
Generates a tempo clock pulse that sets the playback tempo of the automatic performance.

The external storage medium set in the external storage device drive 6 may be a fixed external storage device such as a hard disk (HD), a floppy disk (FD), or a compact disk (CD-ROM C).
A removable external storage medium such as a D-RAM), a magneto-optical disk (MO), a digital versatile disk (DVD), or a semiconductor memory such as a RAM card may be used. Performance data of various original songs may be stored in these external storage media, or performance data of arranged songs may be written and stored. Of course, a control program for executing the automatic arrangement method according to this embodiment may be stored in an external storage medium. The MIDI interface (I / F) 7
This is an interface for inputting MIDI data from another MIDI device (not shown) or the like to the electronic musical instrument or computer, or outputting MIDI data from the electronic musical instrument or computer to another MIDI device or the like. The other MIDI devices may be devices that generate MIDI data in response to a user operation, and include any type of controls such as a keyboard type, a guitar type, a wind instrument type, a percussion type, and a miburi type (or The device may be an operation type. MIDI interface 7
Are not limited to those using a dedicated MIDI interface, but include RS232-C, USB (Universal Serial Bus), IEEE1394 (I Triple E 139)
The MIDI interface 7 may be configured using a general-purpose interface such as 4). In this case, M
Data other than the IDI event data may be transmitted and received at the same time. When the above-described general-purpose interface is used as the MIDI interface 7, other MIDI devices may be configured to transmit and receive data other than the MIDI event data. Of course, the data format of the music performance data is not limited to the MIDI format data, but may be another format.
The data format compatible with the interface 7 and the other MIDI devices has a configuration suitable for it.

The communication interface 8 is connected to a wired or wireless communication network 18 such as a LAN, the Internet, an optical cable, a telephone line, or an ISDN, and is connected to another computer (not shown) via the communication network 18. If it is a server, it is connected to another client; if it is a client, it is connected to another client or server) to send and receive original music performance data, arranged music performance data, control programs, various data, etc. Interface. Although the hardware configuration shown in FIG. 1 is assumed to be an electronic musical instrument, the hardware configuration includes a performance operator 9 and a performance guide indicator 16, but a general-purpose personal computer does not need to include these components. Good. In addition, only the automatic arrangement processing function may be provided, and the automatic performance function and the tone generation function may not be provided. In particular, a server computer that provides an automatic arrangement service to a client need not have a tone generating function such as a tone generator circuit 13, an effect circuit 14, and a sound system 15. The hardware to which the present invention can be applied is not limited to electronic musical instruments and personal computers, but may be other multimedia devices such as mobile phone terminals and karaoke terminals. Therefore, depending on the type of the device to which the present invention is applied, the hardware configuration may be appropriately selected from the configuration shown in FIG. 1 as described above.

First Embodiment As a first embodiment of the automatic arrangement according to the present invention, an example of a "piano solo" type arrangement will be described. FIG. 2 is a flowchart schematically illustrating an example of a program for executing a “piano solo” type automatic arrangement process. This program is executed by the CPU 1. FIG. 3 is a schematic diagram showing an example of performing “piano solo” type automatic arrangement processing according to the present embodiment and generating performance data of an arranged music piece from performance data of an original music piece for easy understanding.

In step S1 of FIG. 2, the performance data of the original music to be arranged is obtained.
The configuration of the original music is composed of a plurality of performance parts, and the performance data of the original music is composed of a plurality of tracks. The configuration of such performance data composed of a plurality of tracks is known per se and will not be described in detail.
The data format of the performance data conforms to, for example, the MIDI standard, but other standards may be used. In this step S1, for example, a desired one from the existing MIDI music data group may be selected as performance data of an original music to be arranged. Acquisition of performance data of a desired original song to be arranged may be obtained via a communication network, or may be obtained by selecting from MIDI song data recorded on a storage medium such as an FD. You may do so. The acquired performance data of the original tune is stored in an internal memory such as the RAM 3 and is accessed when necessary in the subsequent arrangement process, so that the required track or part performance data can be extracted in a required section. It is said.

In this specification, "part" is a term that intends to classify performance data mainly from a musical point of view, and "track" is a term that intends to classify performance data mainly from a data storage location. The technical significance of both words may be common or different. For example, performance data stored in a memory can be accessed by track information in units of tracks, and performance data relating to a desired performance part can be accessed by track information of a track corresponding to the performance part. Each track is set corresponding to a musical performance part, but both are not necessarily equal. For example, performance data of a certain instrument part may be stored in a plurality of tracks.

In step S2, the entire original music piece obtained as described above is divided (or divided) into a plurality of partial sections along the time axis. There are various ways of dividing the partial section, and any method may be used. For example, it may be divided into sections corresponding to an appropriate number of measures such as one measure, two measures, or four measures. In such a case, it may be divided by a uniform number of measures (for example, 4 measures), or may be divided by an appropriate number for each partial section (for example, the first measure and the second measure are divided every 2 measures, The third bar may be divided into four bars, etc.). When the original music data has bar line data, the delimiter process based on the bar line may be automatically performed using the bar line data. Alternatively, a score of an appropriate part (for example, at least a melody part) of the original song is displayed on the display 11, and while viewing the score, a break point for each partial section is designated by manual operation of a human using a mouse or the like. It may be. As another method of division, there is a method of automatically analyzing the performance data of the melody part of the original song to detect a break in the phrase, and using the detected break in the phrase as a break point of one partial section. As an automatic analysis method in this case, for example, there is a method of analyzing a note sequence in performance data. As another example, when the performance data includes a phrase mark indicating a phrase delimiter, the phrase mark of the phrase mark is used. There is a way to use the placement location as a break location. Alternatively, in this case, an appropriate part (eg, at least a melody part) of the original song on the algae display 11
May be displayed, and while looking at the score, a phrase break point may be designated by a human manual operation using a mouse or the like. Of course, the whole original song may be divided into a plurality of partial sections along the time axis by combining the dividing method based on the number of measures and the dividing method based on the phrase, or by combining another method. The method of dividing the partial section of the original song may be common to all parts, but if necessary, the division of the section of some parts may be finer or coarser than that of other parts. Is also good. As another example of how to divide a partial section, the performance data of the original song includes section information that distinguishes the song configuration of the original song by musical sections (intro, main, fill-in, ending, etc.). If so, there is a way to use this section information. That is, a partial section is set for each musical section indicated by the section information of the original music piece. In this case, if necessary, the section divided according to the section information may be further divided to set a partial section.

In step S3, the performance data of one track corresponding to the melody part is extracted from the performance data of the original music, and the extracted performance data of the one track is stored in the melody track of the arranged music. Performance data. Then, in this embodiment, in order to perform a “piano solo” type arrangement,
The tone color specification data for the melody part of the arranged music is set to data for specifying a piano tone color or a piano-like tone color. As a specific example, first, a search is made as to which track the melody part corresponds to among a plurality of tracks storing performance data of the original music. As a method of this search, a predetermined track (for example, the first track) is fixed to the melody track depending on the type of the music data, and when the original music corresponds to the music data type, the predetermined track is used. A track (for example, the first track) is searched, and the performance data of the searched track is
R is taken out from the performance data of the original music and is used as primary performance data of the melody part of the arranged music.
It is stored in the melody track of the arranged music set in the internal memory such as AM3. Alternatively, depending on another music data type, since each track includes auxiliary data such as character information describing characteristics of a performance part or the like of the track, the original music corresponds to the music data type. In this case, a track containing "melody" or a description corresponding thereto is searched for in the auxiliary data of each track, the retrieved performance data of the track is extracted from the performance data of the original music, and the melody part of the arranged music is retrieved. Is stored in the melody track as primary performance data. Alternatively, as another method, from the timbre information of each track of the original song, a search is made to find which track the tone used as the melody part is assigned to, and the searched performance data of the track is
It is extracted from the performance data of the original music and stored in the melody track as primary performance data of the melody part of the arranged music. In this case, the tone to be used for the "tone used as the melody part" as a keyword for the search may be determined based on the user listening to the original music, and may be set and input. As another example, a user inputs a track number to be selected as a melody part, retrieves the performance data of the input track number from the performance data of the original tune, and takes it as primary performance data of the melody part of the arranged tune. , Store in the melody track.

It should be noted that the performance data of the track corresponding to the melody part of the original music may be stored in the melody track of the arranged music for one track. Only the necessary part may be taken out and stored in the melody track of the arranged music. For example, the melody of the original song may be extracted for one chorus and used as the melody of the arranged song, or the melody of the first small passage may be used.
It is also possible to take out a measure and a few measures of rust a few measures away from it and connect them in a time series to form a melody of the arranged music. For example, when arranging a “ring melody” of a mobile phone, the arranged music may be shorter than the original music. As described above, when the melody of the arranged music is created by partially extracting the melody of the original music, the subsequent processing (addition of performance data of the melody part and processing of accompaniment for the melody part) is also performed for the partial section divided in step S2. Part arrangement processing, etc.)
At this time, it is preferable to process only the section extracted as the melody part of the arranged music.

To facilitate understanding of the above description, an additional description will be given with reference to FIG. In FIG. 3, the location of the performance data is schematically shown in the form of a bar graph. As an example, the tracks of the original song are tracks TR1 to TR
8 tracks of R8 are shown, a track TR1 is a melody part, a track TR2 is a bass, TR3 is a drum, TR4 is a trumpet, TR5 and TR6 are pianos,
It is assumed that TR7 corresponds to a guitar and TR8 corresponds to each instrument part of a saxophone. Section 1 as a partial section
6 are illustrated as being divided into six sections. An example is shown in which a track TR1 corresponding to the melody part of the original song is searched, and the performance data of the track TR1 is copied to the arranged melody track AMT as the melody part of the arranged song. The melody part of the arranged song can be paraphrased with the right-handed performance part of the piano in the “piano solo” type arrangement.

Returning to FIG. 2, in step S4, a silence section for a predetermined period or more is selected from the performance data stored in the melody track of the arranged music as primary performance data of the melody part of the arranged music as described above. It checks whether it exists, and detects where the silent section is. The melody track in the original song generally does not include parts other than the main melody, such as intro, interlude, or ending, whereas in the case of a piano solo, the melody line is the melody part even in the intro, interlude, or ending. It is desired to arrange as. In other cases, the melody part of the original song is
Or it could be shared by more trucks. For example, in an original song, a saxophone plays a melody of one chorus followed by a trumpet of a chorus melody, or an extremely short phrase in a section where a certain instrument is playing the melody. There could be a playing style where another instrument is in charge of the melody. In that case, it is not enough to detect a track of one instrument (for example, a saxophone) as a melody track and use this as a melody part of an arrangement song, but to play a melody with another instrument (for example, a trumpet). It is necessary to add the section by adopting it as the melody part of the arranged song.
For this purpose, the processing of this step S4 and the next step S5 is performed. That is, in the silent section detected in step S4, it is estimated that the melody part is being played on another track in the original music, or the intro, interlude, or ending is being performed. Therefore, here, the predetermined period or more as a condition for checking the presence or absence of a silent section may be set to at least a predetermined phrase length (for example, the length of one bar). Of course, the arrangement is not limited to this. If the melody itself is a rest at the end of a certain phrase, or if a silent section occurs due to sustaining the low volume sustain of the last note, the arrangement song Then, even if it is desired to create a rich melody peculiar to the arranged song by decoratively adding a melody to the silent section, the detection of the silent section in step S4 and the addition of the melody in the next step S5 are performed. You can go. For example, in an original song, a wind instrument that plays a melody may have a performance style in which the piano adds a decorative melody as an accompaniment sound when the last note of the phrase is sustained. In this case, the condition that is equal to or longer than the predetermined period as a condition for checking the presence or absence of a silent section may be shorter than one bar. Note that the meaning of the silent section should not be limited to the meaning that no sound (even the sustain sound) exists (that is, a complete rest state), and no note-on event exists ( (The state in which the sustain sound may remain) should be interpreted, and either of them may be designed.

In step S5, from the tracks other than the one track searched in step S3 as the data corresponding to the melody part in the performance data of the original music, a part of the section to be merged into the silent section is read. A track having performance data is searched, performance data of a partial section of the searched track is extracted, and performance data of the extracted partial section is added to the silent section of the melody track of the arranged music. (Merge). As a method of this search, a method similar to the above-described method of searching for a track corresponding to the melody part may be adopted as appropriate. For example, when listening to the original song, the saxophone is playing a melody of one chorus and the trumpet is playing the melody of the chorus that follows, the process of step S3 searches for the saxophone part as a melody track. In the case where the performance data is stored in the melody track of the arranged song, the track of the trumpet part is searched from the data of the original song, and the partial section corresponding to the silent section of the sax part detected in step S4 is detected. The performance data of the trumpet part for the minute is extracted from the track of the searched trumpet part. By adding (merging) the performance data of the trumpet part for the partial section thus extracted to the silent section of the performance data stored in the melody track of the arranged music, the melody of the saxophone part of the original music is added. The performance data of the melody part of the arranged song for one new track is generated by merging the performance and the melody performance of the trumpet, and stored in the melody track of the arranged song.

As another search example, based on the section information as described above, or based on the fact that a human listens to the original music, an intro performance or an interlude or an interlude in the original music corresponding to the above-mentioned silent section. Extract the track of the part that is in charge of the ending performance,
Performance data in a section corresponding to the silent section of the extracted track is extracted and added (merged) to the silent section in the melody track of the arranged music piece. As still another search example, there is a method of detecting a track having the largest number of notes (number of note-on events) in a section corresponding to the silent section from the remaining tracks excluding the drum part track. Alternatively, from the remaining tracks excluding the drum part track, a track in which the sum of the volume volume value and the velocity value of each note (note-on event) is the largest in a section corresponding to the silent section may be detected. . The reason for excluding the drum part is that it is not very suitable for use as a melody part. In addition,
As described above, in the piano solo type arrangement, piano-based timbre data is set in the melody part of this arrangement tune, so that the tone of the new melody part is a piano-based timbre. Of course, when a plurality of silent sections are detected throughout the entire song, the other tracks of the original song searched for corresponding to each silent section may be different tracks.

In order to make it easier to understand an example in which the performance data of the melody part of the arrangement music piece is created by merging through the processing of steps S4 and S5, an explanation will be additionally given with reference to FIG. 4 is the same as that of FIG. In this example, in the track TR1 (melody part) of the original music, the sections 1, 3, and 6 are silence sections, and the track TR2 (base part) is selected corresponding to the section 1; Track TR7 (guitar part)
Is selected, and a track TR8 (sax part) is selected corresponding to the section 6. The processing in steps S4 and S5 may be omitted.

Returning to FIG. 2, in step S6, among the plurality of tracks other than the track searched in step S3 as the data corresponding to the melody part in the performance data of the original music, each segment divided in step S2 A track having characteristic performance data is extracted for each partial section. As described above, when the melody of the arranged song is partially extracted from the melody of the original song, the target of extraction in step S6 is a section corresponding to the portion extracted as the melody of the arranged song. is there. Further, the present invention is not limited to extracting only one track per one partial section, but may extract two or more tracks.

In step S7, the performance data of the tracks extracted for each of the partial sections in the previous step S6 are taken out and arranged in chronological order of each of the partial sections and combined to obtain one accompaniment part of the arranged music. To generate performance data. For a section in which a plurality of tracks are extracted for one partial section, the performance data of these tracks is merged (merged) into performance data for one partial section. The generated performance data of the accompaniment part of the arranged music is stored as primary performance data of the accompaniment part of the arranged music in the accompaniment track of the arranged music set in the internal memory such as the RAM 3. In this embodiment, in order to perform the "piano solo" type arrangement, the tone color designation data for the accompaniment part of the arranged music piece is set to data for designating a piano tone or a piano-like tone. Note that the step S
The part of the other track of the original song added to the melody part of the arranged song in step 5 is excluded from the extraction target in step S6 so as not to use it as the performance data of the accompaniment part of the arranged song. It shall be. This is to prevent the melody and accompaniment from becoming monotonous if the melody becomes the same in some sections.

Tracks other than the track corresponding to the melody part in the original music generally store performance data of the accompaniment part. Generally, in the original music, the performance data of these accompaniment parts causes complicated accompaniment by ensemble of a plurality of musical instruments. According to the arrangement according to the present embodiment, the performance data of a characteristic part (particularly good) is extracted from the complex accompaniment ensemble of the original song, and the arrangement data is spliced to create an arrangement of the accompaniment part. Will be. Therefore, step S
The extraction criterion of the track having the characteristic performance data in 6 may be to detect the performance data indicating the representative accompaniment performance for each partial section. An appropriate method may be used as a method of detecting such performance data indicating a representative accompaniment performance, and some examples thereof will be described later.

Here, in order to make it easier to understand the arrangement example for the accompaniment part, an additional explanation will be given with reference to FIG. 3 again. In the example of FIG. 3, the track TR2 (base part) of the original song is selected in the section 1, the track TR5 (piano part) is selected in the section 2, and the track TR 5 is selected in the section 3.
4 (Trumpet part) and TR7 (Guitar part)
, A track TR6 (piano part) in section 4, a track TR5 (piano part) in section 5, and a track TR8 (sax part) in section 6 to generate performance data for accompaniment. An example is shown in which the music is stored in the accompaniment track AAT. As described above, the original song 2 selected in the section 3
The performance data of the two tracks TR4 and TR7 are merged. In the arrangement of the "piano solo" type, the accompaniment part of the arranged music can be paraphrased with the left-hand performance part of the piano.

Next, several examples of a method of extracting a track having characteristic performance data in step S6 will be described. One example is a method of setting a tone (or a musical instrument name) to be preferentially selected from performance data of an original song as accompaniment data of an arranged song, and extracting a track of a part corresponding to the set tone. For example, a priority tone may be set in several priorities, such as a first priority being a grand piano and a second priority being an electric piano. In this case, for each track other than the melody part track of the original song, the number of notes (number of note-on events) for each partial section
May be detected, and track extraction may be performed by combining the number of notes and the priority timbre. For example, priority 1
If the number of notes in a partial section is 0 or a small number of notes, the track is not extracted in that section, and the track is a track of a tone of lower priority and the number of notes is not small. Is extracted. Alternatively, the number of notes for each partial section (number of note-on events)
Instead of detecting the sum, the sum of the volume levels (the sum of the volume volume setting value and the velocity value) is detected for each partial section, and track extraction is performed by combining this volume level sum value and the priority timbre. It may be. Alternatively, a plurality of priority tones are set, and the number of notes (the number of note-on events) or the total volume level of each partial section is detected without prioritizing among the set plurality of priority tones. Out of the tracks corresponding to the priority timbre of (i), the track having the largest detected value may be extracted. If the tone set as the tone of the accompaniment part of the arranged song (piano tone in the piano solo arrangement) is set as the priority tone, the atmosphere of the original song can be easily succeeded. However, it is not limited to this.

As another example, as described above, for each track other than the melody part track of the original music, the number of notes (number of note-on events) is detected for each partial section, and for each partial section, A track having the largest number of notes (the number of note-on events) may be extracted. As another example, as described above, the sum of the volume levels (the sum of the volume volume setting value and the velocity value) is detected for each partial section, and the maximum of the volume level sum value is detected for each partial section. A large track may be extracted. As still another example, track extraction may be performed using a combination of the number of notes for each partial section and the total volume level value.

As another example, the performance data of each partial section is selectively extracted from the performance data of the tracks other than the track corresponding to the melody part and the track corresponding to the base part in the performance data of the original music. The performance data of the track corresponding to the base part in the performance data of the original music is extracted in at least a part of the sections, and the combination of the extracted pieces of the performance data for each of the partial sections is compared with the extracted part of the sections. The performance data of the accompaniment part in the arranged music may be generated based on the addition of the performance data of the base part (that is, merging / merging). This way,
Since the performance data of the base part of the original music is incorporated into the accompaniment part of the arranged music, it is easy to perform the arrangement utilizing the characteristics of the bass in the accompaniment.
In this case, the method of selectively extracting the performance data of each partial section from the performance data of the tracks other than the track corresponding to the melody part and the track corresponding to the base part in the performance data of the original music is performed by using the accompaniment data described above. And any of the truck extraction methods used for this purpose.

As another example, of a plurality of tracks corresponding to parts other than the melody part, the bass part and the drum part in the performance data of the original music, performance data (notes) that are musically conspicuous for each partial section. A track including a row may be extracted. The musical data (note sequence) that is musically conspicuous is, for example, a portion consisting of a note sequence on the basic rhythm (beat) of the song, a portion consisting of a melodic note sequence, or a note sequence (like an accompaniment). For example, a portion composed of an arpeggio progression note sequence).

Returning to FIG. 2, in step S8, the performance data of the arranged melody track AMT and / or the performance data of the accompaniment track AAT stored as primary performance data in the internal memory. And perform appropriate data processing. Examples of data processing include decreasing or increasing the number of notes (number of events), changing the velocity value for each note,
Alternatively, the note length of each note may be changed, or control data such as pitch bend data may be deleted to provide standard performance data.

As another performance data processing example, in processing the performance data of the accompaniment track AAT of the arranged music, the performance data of the part of the predetermined drum sound (for example, bass drum sound) in the performance data of the original music is processed. This is to select performance data of a specific sounding event using the sounding timing. This is effective when the number of notes in one measure of the performance data extracted from the track of the base part of the original music is large, and only the necessary bass sound is selected among them. For example, since the bass sound corresponding to the bass drum sounding timing is important, this is selected and left, and the performance data of the remaining bass sound in one bar is deleted. If the performance data of the refined bass part is merged with the performance data extracted from another track in this way, the necessary number of notes can be inserted into the accompaniment data so that the bass part (bass) does not interfere. Can be.

As another performance data processing example, in processing the performance data of the melody track AMT and / or the performance data of the accompaniment track AAT of the arranged music,
Performance data of additional sounds (such as harmony sounds and ornamental sounds) is generated according to the key of the music or the chord (chord) in each section, and the generated performance data of the additional sounds is played in the melody part or accompaniment part of the arranged music. It may be added to the data. For example, in the melody part, a third note is added to some sounds to create a duet sound, and in the accompaniment part, a part of chord components is added to make the accompaniment sound thicker. May be. Or,
In the melody part or the accompaniment part, a decorative sound may be added to some sounds. That is, a note of a pitch appropriately selected from the tonic scale note (scale note) and the chord component sound in that section is added as a decorative sound. Also, instead of the grace tone, the note length of the original note in the original song is shortened to あ る い は or の 長, and as one or more notes of the remaining length, an articulatory scale (scale note) ) And the notes of the pitch appropriately selected from the chord constituent notes in that section to add a sense of liveliness to the note sequence,
Alternatively, the sound may be moved. In these cases, if the key data indicating the key of the music is included in the performance data of the original music, it is used. If the chord data according to the chord progression is included in the performance data of the original music, it is used. If these key data and chord data are not included in the performance data of the original song, the performance data of the melody track of the original song and other tracks are analyzed to obtain the key data and chord data. May be. Further, the user may input these data.

As another performance data processing example, in processing the performance data of the melody track AMT and / or the performance data of the accompaniment track AAT of the arranged music,
Performance data may be reduced in consideration of the number of simultaneous performances from the performance data extracted from the original music. For example, in a piano, since the number of simultaneously playable sounds for both the right hand and the left hand is generally a maximum of five, when the number of simultaneously played sounds is six or more, the performance data is reduced to five or less. Also, when the number of performance sounds in one partial section is too large or the interval between adjacent notes is too large in time, and it is difficult to perform in the actual performance technique, The performance data in the section is appropriately reduced. In that case,
It is preferable to set priorities for music data to be reduced (decimated) in consideration of music theory. For example, when the performance data for accompaniment is to be reduced (decimated), a melody sound and a pitch that does not sound well (for example, the second pitch) are preferentially decimated, or a melody sound and a well-pitched sound can be removed from the melody sound. Depending on the pitch, a different priority may be assigned (for example, the fifth interval is thinned out prior to the third interval), or the performance data of the pitch corresponding to the chord constituent sound in the section is left as other priority. Or prioritize the chords (for example, the fifth
May be thinned out in preference to the degree). At the time of each data processing described above, the data processing may be automatically performed according to a predetermined procedure, or the data processing may be performed manually by a mouse or the like while looking at the editing screen of the arranged music displayed on the display. The processing may be performed, or the data processing may be performed by appropriately combining the automatic processing and the manual operation. The performance data to be processed may be pronounced so that it can be checked and heard.

In step S9 of FIG. 2, the melody track AMT performance data and the accompaniment track AAT performance data of the arrangement music that has been processed or edited as described above are combined with the melody part and accompaniment part of the completed arrangement music. Is stored in a predetermined area of the internal memory or the external memory as the performance data of. In this way, the performance data of the right-hand performance part (melody part) leading the melody and the performance data of the left-hand performance part (accompaniment part) playing the accompaniment are generated by adding the timbre data of the piano-based timbre, respectively. Can be easily performed. The first embodiment can be applied not only to the piano solo type but also to an arrangement for solo performance of any musical instrument such as a guitar solo type. In this case, the timbre data set corresponding to the melody part and the accompaniment part in steps S3 and S7 in FIG. 2 correspond to the timbre of the solo musical instrument.

[Second Embodiment] As a second embodiment of the automatic arrangement according to the present invention, a description will be given of a "playing narration" type arrangement processing example. FIG. 5 is a flowchart schematically illustrating an example of a program for executing a “playing story” type automatic arrangement process. This program is executed by the CPU 1. FIG. 6 shows a “playing story” according to this embodiment.
An example of performing type automatic arrangement processing and generating arrangement music performance data from original music performance data,
It is a schematic diagram shown for easy understanding.

First, the outline will be described with reference to FIG. The point that the performance data stored in the melody track AMT of the arranged music is extracted from the track of the melody part of the original music may be the same as in the case of the first embodiment. However, in the arrangement of the "playing narration" type, the melody is a vocal part, and is set to a tone different from at least the tone of the accompaniment part (for example, a piano tone). 1 accompaniment data for the arranged song
Next, one accompaniment track AAT is prepared for the next preparation. Here, similarly to the case of the first embodiment, each accompaniment track AAT is provided for each partial section from a track other than the track corresponding to the melody part of the original music. The extracted performance data is 1
Next store. For the method of extracting the primary accompaniment performance data for the arrangement music, the various methods described in the first embodiment may be appropriately adopted. In FIG. 6, the track TR1 corresponding to the melody part and the track TR corresponding to the base part in the performance data of the original music are shown.
From the performance data of tracks other than 2, each partial section 1-6
While selectively extracting performance data for each of the sections, the performance data of the track TR2 corresponding to the base part of the performance data of the original music is extracted in at least some of the sections 2 to 5, and the extracted partial sections 1 to 5 are extracted. Part 2 of the extracted section 2 for each combination of performance data
An example is shown in which primary performance data of an accompaniment part in an arrangement music piece is generated based on the addition of performance data of base parts No. to No. 5 (that is, merging / merging) and stored in the primary accompaniment track AAT. I have. This way,
Since the performance data of the bass part is incorporated into the performance data stored in the primary accompaniment track AAT, it is easy to perform the separation utilizing the characteristics of the bass when the performance data is then separated into two parts according to the range. Two secondary accompaniment tracks (left-handed accompaniment track AAT1 and right-handed accompaniment track AAT2) are prepared to store secondary accompaniment performance data for the arranged music. As described above, the primary performance data of the accompaniment part stored in the primary accompaniment track AAT is separated into two parts, a bass part and a treble part, according to the range, and the performance data of the bass part is left-handed. The data is stored in the accompaniment track AAT1, and the performance data of the treble part is stored in the right handed accompaniment track AAT2. These two
The tone colors of the two accompaniment parts may be common or may be different. For example, in the case of a piano playing type, the tones of these two accompaniment parts are piano-based tones. In the second embodiment, the performance data of the accompaniment part created on the basis of the original music in the primary processing need be only one track, although the arrangement performance data of the accompaniment part for two parts is created. In addition, there is an advantage that no labor is required for the extraction processing and the like for each partial section.

Next, a specific processing procedure will be described with reference to FIG. In FIG. 5, steps S1, S2, S
Steps S4, S5, and S8 have the same contents as the processing in the steps with the same numbers in FIG. Step S13 corresponds to step S3 in FIG. 2, and the performance data of the melody part of the arranged music piece is extracted from the track corresponding to the melody part of the original music piece, as in the processing in step S3. 2 is different from the processing in step S3 in FIG. The reason for this is, as described above, in this example, we intend to arrange a piano-based narration type,
The melody part is a non-piano tone.

Step S16 corresponds to step S6 in FIG. 2, and similarly to the processing in step S6, characteristic performance data for each partial section from tracks other than the track corresponding to the melody part of the original music piece. In order to increase the number of notes or to widen the range in consideration of dividing into two parts later, a plurality of tracks are extracted for each section in step S6 in FIG. Is different from the processing described above.

Step S17 corresponds to step S7 in FIG. 2. Similar to the processing in step S7, the performance data is extracted from the track extracted for each partial section and stored in the accompaniment track AAT. In the second embodiment, the accompaniment track AAT is a primary track, and the performance data extracted from a plurality of tracks extracted for each partial section in the previous step S16 is merged to perform one track. Data is generated and stored in the primary accompaniment track AAT as primary accompaniment performance data. In this example, since it is intended to arrange a piano-based narration type, the accompaniment part is set to a piano-based tone.

In the next step S8, step S8 in FIG.
As in the case of No. 8, the performance data stored in the melody track AMT and the accompaniment track AAT are appropriately processed. The next step S18 is to perform processing unique to the second embodiment. That is, the performance data stored in the primary accompaniment track AAT is separated into two parts, a bass part and a treble part, according to the range, and the performance data of the bass part is stored in the left-hand accompaniment track AAT1, and the treble part is played. The performance data is stored in the right-hand accompaniment track AAT2. In this way, two-part accompaniment performance data corresponding to the range is generated. In the case of a piano-based narration type, a bass part means a part suitable for playing the keyboard with the left hand, and a treble part means a part suitable for playing the keyboard with the right hand. There are various ways to separate the performance data of one track into two parts, and any one may be adopted.

As an example, a fixed pitch may be used as a division point to be divided into a treble section and a bass section.
In this case, the high range and the low range are respectively fixed. As another example, based on the lowest sound (or highest sound) in the performance data of each predetermined section, a predetermined number of pieces of performance data counted therefrom are classified into low-pitched (or high-pitched) sections, and the rest are treble-pitched. Section (or bass section).
In this case, the range of the treble section and the bass section fluctuates substantially in each predetermined section, and the bass section (or the treble section) is changed.
, A predetermined number of performance notes can be secured.
As another example, based on the lowest sound (or highest sound) in the performance data for each predetermined section, performance data existing within a predetermined range (for example, one octave or the like) therefrom is stored in a low-pitched portion (or high-pitched portion). Classify, rest high (or low)
May be classified. Also in this case, the treble and bass ranges fluctuate substantially in each predetermined section. As another example, the midpoint between the lowest sound and the highest sound in the performance data for each predetermined section may be divided into a treble portion and a bass portion as a division point. In this case as well, the treble and bass ranges fluctuate substantially in each predetermined section.

As still another example, the ideal load ratio of the right hand and the left hand during performance is, for example, 70% for the right hand and 30 for the left hand.
%, And the dividing point may be variably determined so as to satisfy the ideal load factor as much as possible. For this purpose, for example, the performance data in a predetermined section is provisionally divided into a bass part and a treble part at a provisional division position, and each is divided based on the number of notes of the performance data included in the provisional bass part and the treble part. It is preferable to calculate the load factor and shift the provisional division position so that the load factor approaches the ideal load factor as much as possible, thereby determining the ideal division position. In calculating the load factor, not only the number of notes in the performance data included in the provisional bass part and the treble part in the section, but also the arrangement of the notes and the degree of difficulty in fingering are quantified and calculated. It is better to incorporate it.

As a method of determining the provisional division position, each pitch of all the performance data in the section is weighted by its note length, and a distribution diagram of the total note length for each pitch is created. Then, in the distribution diagram, there is a method in which a position where the bass range and the treble range can be divided at an ideal load factor is roughly determined, and the position is set as a provisional division position. In addition to this,
More simply, for example, a method may be adopted in which an intermediate position between the lowest sound and the highest sound of the performance data in the section is set as a temporary division position. Alternatively, a method may be used in which a pitch average of performance data in the section is determined, and a pitch position corresponding to the average value is set as a temporary division position. Also, when determining a division point according to the ideal load factor, a temporary division position is not used, and each pitch of all performance data in the section is set as a candidate division position, and the load in each case is determined. The pitch may be calculated, and the pitch position that provides the load factor closest to the ideal load factor may be determined as the division point. In addition, by appropriately combining and processing the above-described various division position determination methods, the accompaniment performance data of one track may be separated into two parts, a bass part and a treble part.

Returning to FIG. 5, in step S19, the performance data of the melody track AMT and the left and right handed accompaniment tracks AAT1 and AAT2 of the arranged music having undergone the above-described processing or editing processing and two-part separation processing.
Is stored in a predetermined area of the internal memory or the external memory as the performance data of the melody part and the accompaniment part of the completed arrangement music. In this way, the tone data of the non-piano tone is added to the performance data of the melody part corresponding to the vocal part, and the two parts of the low tone part and the high tone part are added.
The performance data for accompaniment composed of parts is generated by adding the tone data of the piano-based timbre, and the arrangement of the piano-based narration type can be easily performed. The second embodiment can be applied not only to a piano-based narration type but also to an arrangement for playing and arranging any musical instrument such as a guitar-based narration type. In that case, step S1 in FIG.
The timbre data set corresponding to the melody part in 3 does not correspond to the timbre of the playing narration instrument,
The timbre data set corresponding to the accompaniment part in step S17 is assumed to correspond to the timbre of the playing and talking instrument. As a modified example of the play-speaking arrangement, an arrangement may be made in which only two-part accompaniment performance data is arranged. In that case, the processing for generating the performance data of the melody part of the arranged music (for example, the processing of steps S13, S4, S5 in FIG. 5) may be omitted.

[Third Embodiment] As a third embodiment of the automatic arrangement according to the present invention, an example will be described in which accompaniment performance data of an arranged music is created by partially using accompaniment data other than the original music. The third embodiment is similar to the first embodiment.
In any of the cases of the second embodiment and the second embodiment, the present invention can be applied when creating performance data for accompaniment of arranged music. FIG. 7 is a conceptual diagram of the third embodiment. The basic configuration for generating the melody part and the accompaniment part performance data of the arranged music based on the performance data of the original music composed of a plurality of tracks is the same as that of the first or second embodiment. In the third embodiment, an accompaniment pattern generator 20 is provided, and accompaniment data is provided separately from performance data of an original music piece. When the performance data of each track of the original music piece is selected for each partial section according to the first or second embodiment, the accompaniment pattern generation section 20 selects a section in which a track having appropriate performance data could not be searched. The accompaniment data generated based on the appropriate accompaniment pattern is selected and adopted as the performance data of the accompaniment part of the arrangement music for the section. Accompaniment pattern generator 20
The accompaniment data generated from is for generating an accompaniment pattern sound based on a short pattern of about one to several measures at a pitch corresponding to a chord, and a known accompaniment pattern generating means may be employed. As a result, the accompaniment arrangement can be easily performed with a wide variety of variations.

[Various Applications] Various applications in the automatic arrangement apparatus and method according to the above embodiments will be illustratively described below. FIG. 8 is a conceptual block diagram showing an application form in which the arranged music is actually played and pronounced based on the performance data of the arranged music generated according to each of the above embodiments. Arrangement processing (block 31) is performed based on the original music piece (block 30) according to each of the above embodiments, and performance data of the melody part and the accompaniment part of the arranged music piece is generated. Playback performance processing based on the performance data of the arranged music piece (block 32) is performed in accordance with a known automatic performance processing procedure. 34) is pronounced acoustically. 1, for example, the reproduction performance processing (block 32) is executed by the CPU 1, the sound source processing (block 33) is executed by the sound source circuit 13, and the speaker (block 34) is included in the sound system 15. .

FIG. 9 shows the musical score of the arranged music based on the performance data of the arranged music generated according to each of the above-described embodiments, on the electronic display 11 (FIG. 1).
Alternatively, FIG. 7 is a conceptual block diagram showing an application mode in which a visible score printed matter is provided by printing out by the printer 12 (FIG. 1).
(E) shows an improved application thereof. Arrangement processing (block 31) is performed based on the original music piece (block 30) according to each of the above embodiments, and performance data of the melody part and the accompaniment part of the arranged music piece is generated. The musical score processing (block 35) is performed based on the performance data of the arranged music, and the music score of the arranged music is displayed on the screen of the display 11 (FIG. 1) via the display driver (block 36). Alternatively, the music is printed out by the printer 12 (FIG. 1) to provide a printed musical score of the arranged music. The musical score conversion process (block 35) is executed by the CPU 1. The format of the musical score is not limited to the staff notation format but may be any other format.

In FIG. 9B, the score symbol reading and adding process (block 3) is performed for the basic application shown in FIG. 9A.
7) has been added. In this example, the performance data of the original song includes a score symbol for each performance part,
In the musical notation reading and adding process (block 37), if the musical notation symbol exists corresponding to the partial section of the track extracted from the original music in the arrangement process (block 31), the musical notation symbol is converted to the original music. , And controls the musical score conversion process (block 35) so that the read musical score symbols are used as musical score symbols of the tune arranged in the partial section. The musical score reading and adding process (block 37) is executed by the CPU 1. The musical score symbols are, for example, dynamic symbols, tempo symbols, repetition symbols, pedal symbols, and the like. Such additional display of the music score symbol improves the quality of the music score display material of the arranged music provided in a printed material or the like.

In FIG. 9C, a score symbol generation process (block 38) is added to the basic application form shown in FIG. 9A. In this example, if the music data of the original music does not include the musical notation symbols, the musical notation generation processing (block 38) uses the music data corresponding to the various musical notation symbols from the music data arranged in the arrangement processing (block 31). The musical notation processing (block 35) is controlled so as to detect a musical feature, generate a musical notation symbol corresponding to the detected musical characteristic, and use the generated musical notation symbol as the musical notation symbol of the arranged music. The detection of the musical feature may be performed on a specific part of the arranged music, for example, a melody part. As an example, the dynamic symbol is generated by calculating the sum of the volume volume set value, the velocity value and the expression pedal value of each note included in the performance data within one measure or an appropriate predetermined section (for example, in actuality, each note) Is multiplied by these values to obtain a total volume value for each sound, and the total volume values for each sound are summed to obtain a total volume value in the section.) , The section is ppp, pp,
It is determined which of the strong and weak symbols such as p, mp, mf, f, ff, and fff corresponds. For this determination, an appropriate determination table may be referred to.

As another example of how to generate dynamic marks, a time-series arrangement of notes in performance data (trajectory)
, A total volume value for each note is calculated by multiplying a volume volume setting value, a velocity value, and an expression pedal value for each note, and a time-series arrangement of the total volume value for each note ( Trajectory). Then, analysis may be performed based on the time-series arrangement (trajectory) of the total volume value for each note to generate a dynamic symbol. As a specific procedure, in a chronological arrangement (trajectory) of the total volume value for each note, the total volume value for each note is converted into an individual dynamic symbol, and when the dynamic symbol for each note is used. Obtain a sequential sequence (trajectory). Then, in the time-series arrangement (trajectory) of dynamic symbols for each note, those in which dynamic symbols match between adjacent notes are grouped to obtain a time-series arrangement (trajectory) of grouped dynamic symbols. . In principle, the dynamic symbols of the group are added corresponding to the position of the first note of each group in the time-series arrangement (trajectory) of the grouped dynamic symbols.

In the above example, an example will be described in which an accent symbol (∨) is used instead of a descriptive dynamic symbol such as mp (mezzo piano) or pp (pianissimo). The minimum value of the symbol assignment section corresponding to the minimum resolution of the section to which the dynamic symbol is assigned is determined, and the time width of one group in the chronological arrangement (trajectory) of the grouped dynamic symbols is smaller than the symbol assignment section minimum value. Is also shorter, and the dynamic symbols of the groups on both sides thereof are the same, and the dynamic symbols of the group having a time width shorter than the minimum value of the symbol assignment section are stronger than the dynamic symbols of the groups on both sides, the symbol Cancel the dynamic symbol of the group whose time width is shorter than the grant section minimum value, make it the same symbol as the dynamic symbol of the group on both sides,
All of them are in the same group, and an accent symbol (∨) is attached to the position of a note in a group having a time width shorter than the minimum value of the symbol-giving section. For example, the chronological arrangement (trajectory) of dynamic symbols for each note is "... pp,
pp, pp, mp, mp, pp, pp, pp,..., and when the time width of the group of “mp, mp” is shorter than the minimum value of the symbol-giving section, the above are all grouped as “pp” symbols. , And an accent mark (に) is added to the position of the note in the original “mp, mp” group.

Returning to FIG. 9, in (D), a master score symbol generation process (block 39) is added to the basic application form shown in (A). In this example, if the performance data of the original tune includes a master score symbol common to all performance parts (for example, a symbol for controlling the tempo increase / decrease), the master score symbol generation process (block 39)
The music notation process (block 35) is controlled so that the common master score symbol read from the original song is used as a common score symbol in the arranged song performance data generated in the arrangement process (block 31). If the performance data of the original music does not include a common master music notation symbol, in the master music notation symbol generation processing (block 39), the performance data of the arrangement music generated in the arrangement processing (block 31) is added to all parts. A musical feature corresponding to the common master musical notation symbol is detected, a master musical notation symbol is generated corresponding to the detected musical characteristic, and the generated master musical notation symbol is used as a master musical notation symbol of the arranged music. , The musical score conversion process (block 35). For example, the tempo gradually slows down (or speeds up)
If a section is detected, a "ritardand sign" (or "accelerand sign") is inserted corresponding to the section. The master score symbol generation processing (block 39) is executed by the CPU.
1 is performed. In the master score symbol generation process (block 39), only the master score symbol assignment process based on reading from the original song is performed, and the master score symbol generation process based on the arranged song performance data includes the score symbol generation process (C). The processing (block 38) may be performed.

In FIG. 9E, a performance support information generation process (block 40) is added to the basic application shown in FIG. 9A. In the performance support information generation process (block 40), performance support information such as fingering information for keyboard performance is generated from the performance data of the arranged music piece generated in the arrangement process (block 31), and the generated performance support information is stored in a musical score. Notation process (Block 3
5) is controlled. In this case, there may be various types of performance support information (fingering information) that is visually displayed on the musical score. For example, information that advises how to play with words such as "slowly" or "stop" may be used. Also, by providing the performance support information attached to the performance data of the arranged music, when the performance data of the arranged music is reproduced, the performance support information is read out together, and control is performed so as to guide the performance of the arranged music. You can also.

[Application to an Automatic Arrangement System with a Communication Network Interposed] An automatic arrangement system with a communication network interposed can be constructed using the automatic arrangement device and / or method according to each of the above embodiments. A business using this system can be developed as a paid or free music automatic arrangement business or an arranged music score providing business. This system basically includes a plurality of client computers and at least one server computer connected via a communication network. The basic hardware configuration of the client computer and the server computer is shown in FIG.
May be the same as that shown in FIG. In order to adopt a business mode in which the server performs an automatic arrangement process in response to a request from a user (client), FIGS.
The program for the automatic arrangement process described with reference to the above may be provided at least on the server computer side. Of course, this does not exclude an embodiment in which such an automatic arrangement processing program is provided on the client computer side. On the other hand, the server computer only needs to have the necessary hardware and software for the automatic arrangement processing. You may.

FIG. 10 is a schematic flowchart showing a first embodiment of a system for providing arrangement via a communication network. The flow labeled “Client Computer” on the left side schematically shows the flow of processing in the client computer. The flow labeled “server computer” on the right side schematically shows the flow of processing in the server computer.
First, in step S31, the client (user)
Prepare the performance data of the original song that you want to arrange,
By loading the data on the client computer, the client computer acquires the performance data of the original music. In step S32, the acquired original music performance data is transmitted to the server via the communication network 18 according to the operation of the client (user). In the server computer, the communication network 18
The performance data of the original tune transmitted via the PC is received and loaded into the internal memory (step S41). As a result, the client computer acquires the performance data of the original music to be arranged. As a modification, the client specifies the original song by transmitting only information such as the name of the original song to be arranged to the server, and the performance data of the specified original song is processed by the server. It may be obtained from an appropriate database.

Next, the server computer generates the performance data of the arranged music based on the performance data of the original music and generates the corresponding musical score data in a manner according to the above-described embodiments (steps S42 and S43). .
Then, the generated score data of the arranged music is transmitted to the client computer of the request source via the communication network 18.
(Step S44). The requesting client computer receives the music score data of the arranged music distributed from the server in the digital data communication format via the communication network 18 (step S33). Then, the received musical score data of the arranged music is displayed on a display or printed out by a printer for use (step S3).
4). Note that the music score data of the arranged music transmitted from the server includes only image data or text data for visually displaying the music score, and includes performance data such as MIDI data that enables automatic performance of the arranged music. It may not be included. Of course, performance data such as MIDI data may be included together with the music score data of the arranged music transmitted from the server. In this case, the user (client) can perform the automatic performance based on the performance data so that the user (client) can play the arranged music. Can be checked immediately.

FIG. 11 is a schematic flowchart showing a second embodiment of a system for providing arrangement via a communication network. In the second embodiment, an arrangement request (sending original music performance data) from a client computer to a server computer is performed in a digital data communication format via the communication network 18, but the music score data of the arranged music completed by the server computer is transmitted. Is electronically transmitted to the user (client) by facsimile. In FIG. 11, the steps denoted by the same reference numerals as those in FIG. In this case, the server computer prints out the completed musical score of the arranged song by a printer (step S45), and transmits the musical score to the user (client) by facsimile (step S45).
46). If the server computer has a function capable of facsimile transmission without printing out the musical score data of the arranged music, step S45 can be omitted. On the user (client) side, the musical score of the arranged song transmitted by facsimile from the server is received by its own facsimile device (step S35), and the received musical score is printed out (step S36).

FIG. 12 is a schematic flowchart showing a third embodiment of a system for providing arrangement via a communication network. In the third embodiment, the arrangement request (transmission of the original music performance data) from the client computer to the server computer is performed in a digital data communication format via the communication network 18, but the music score data of the arrangement music completed by the server computer is transmitted. Is delivered to the user (client) by mail or courier service. In FIG. 12, the steps denoted by the same reference numerals as those in FIGS. In this case, the server computer prints out the completed musical score of the arranged music by a printer (step S45), and sends the printed musical score to the user (client) by mail or courier (step S47). The user (client) receives the musical score printout of the arranged music delivered from the server (step S37).

In the above embodiment, the arrangement type is the “piano solo” type (or other musical instrument solo type).
And the examples of the "playing type" are described, but the illustration of these types is merely an example for convenience of explanation. Therefore, the gist of the present invention is not limited to these type names and examples. In the present invention, "performance data" is not limited to automatic performance data such as MIDI data, but also includes musical score data and the like. Also, the format of the performance data in any of the “original music” and the “arranged music” is not limited to the MIDI standard, but is a non-MIDI standard as used in karaoke music and ringtones for portable communication terminals. Data. Further, the data formats of the performance data of the “original music” and the “arranged music” may be different. In this case, for example, according to the above embodiments, first, the performance data of the “arranged music” is generated in the same data format as the performance data of the “original music”, and then the generated performance data of the “arranged music” is desired. What is necessary is just to convert into the data format of. Or conversely, first, the performance data of the "original song" is converted into a desired data format, and then the performance data of the "arranged song" is generated from the performance data of the "original song" according to the above-described embodiments. You may. Also, of course, the present invention is not limited to a system configuration in which a communication network is interposed as shown in FIGS.
It can also be configured with only a single device as shown in FIG.

[0065]

As described above, according to the present invention, the performance data of the accompaniment part of the arrangement music is obtained from the performance data of the tracks other than the track corresponding to the melody part in the performance data of the original music, in each partial section. Each piece of performance data is selectively extracted and generated based on a combination of the extracted pieces of performance data of each partial section. Therefore, it is relatively easy to extract the good accompaniment part of each partial section of the original music. In addition, you can create a good accompaniment arrangement that makes use of the atmosphere of the original song. Also, the performance data of each partial section is selectively extracted from the performance data of the tracks other than the track corresponding to the melody part out of the performance data of the original music, and based on the combination of the extracted performance data of each partial section. When the primary accompaniment data is generated and the primary accompaniment data is divided into two parts according to the range, the performance data of the two accompaniment parts is generated. Can be easily created.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an example of a hardware configuration of an electronic musical instrument or a computer that can be used to implement an automatic arrangement device and method according to the present invention.

FIG. 2 is a flowchart schematically illustrating an example of a program for an automatic arrangement process according to an embodiment of the present invention, which can be executed by the CPU of FIG. 1;

FIG. 3 is a schematic diagram showing an example of performing “piano solo” type automatic arrangement processing in accordance with the embodiment of FIG. 2 and generating performance data of an arranged music piece from performance data of an original music piece for easy understanding.

FIG. 4 is a schematic diagram for easy understanding of an example in which performance data of a melody part of an arrangement music piece is created by merging in the embodiment of FIG. 2;

FIG. 5 is a flowchart schematically showing an example of a program for an automatic arrangement process according to another embodiment of the present invention, which can be executed by the CPU of FIG. 1;

FIG. 6 is a schematic diagram showing an example of performing “playing story” type automatic arrangement processing according to the embodiment of FIG. 5 and generating performance data of an arranged music piece from performance data of an original music piece for easy understanding.

FIG. 7 is a conceptual diagram of an automatic arrangement process according to yet another embodiment of the present invention.

FIG. 8 is a conceptual block diagram showing an application form in which the arranged music is actually played and pronounced based on the performance data of the arranged music generated according to each of the embodiments.

FIG. 9 is an application in which a musical score of the arranged music is visually displayed on an electronic display based on performance data of the arranged music generated in accordance with each of the above-described embodiments, or printed out by a printer to provide a visual score printed matter. It is a conceptual block diagram which shows a form, (A) shows the basic applied form, (B)-(E) shows the improved applied form.

FIG. 10 is a schematic flowchart illustrating a first embodiment of a system for providing arrangement via a communication network.

FIG. 11 is a schematic flowchart illustrating a second embodiment of a system for providing an arrangement via a communication network.

FIG. 12 is a schematic flowchart illustrating a third embodiment of a system for providing arrangements via a communication network.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 CPU 2 Read only memory (ROM) 3 Random access memory (RAM) 6 External storage device drive 7 MIDI interface 8 Communication interface 9 Performance operator (keyboard etc.) 10 Panel operator 11 Display 12 Printer 13 Sound generator circuit 20 Accompaniment pattern generation Department

Claims (29)

[Claims] A means for acquiring performance data of an original song composed of performance data of a plurality of tracks; and extracting performance data of a track corresponding to a melody part from the performance data of the original song; Arranging melody generating means for generating performance data of a melody part of the arranged music based on the melody part; And an arrangement accompaniment generating means for generating performance data of at least one accompaniment part in the arranged music piece based on a combination of the performance data of each extracted partial section. 2. An arrangement accompaniment generating means for temporarily generating performance data of one accompaniment part based on a combination of the retrieved performance data for each partial section,
2. The automatic arrangement apparatus according to claim 1, wherein the performance data of two accompaniment parts is generated by dividing the performance data of one accompaniment part that is temporarily generated into two parts according to a range. 3. The arrangement melody generating means retrieves performance data of one track corresponding to a melody part from the performance data of the original music, and other tracks other than the one track of the performance data of the original music. The performance data of the melody part of the arranged music is obtained by extracting the performance data of a part of the section from the performance data of the track and adding the performance data of the part of the other track to the extracted performance data of the one track. The automatic arrangement device according to claim 1, wherein the automatic arrangement device generates: 4. The arrangement accompaniment generating means includes means for detecting a silent section for a predetermined period or more in the performance data of one track corresponding to the melody part extracted from the performance data of the original music. Extracting performance data of a part of the other track corresponding to the section, and adding performance data of a part of the other track to the silence section of the extracted performance data of the one track; 4. The automatic arrangement device according to claim 3, wherein performance data of a melody part of the arrangement music is generated based on the arrangement music. 5. The arrangement accompaniment generation means, wherein the performance data of the partial track of the other track used as the performance data of the melody part of the arrangement music piece by the arrangement melody generation means is the music data of the arrangement music piece. 5. The automatic arrangement device according to claim 3, wherein the automatic arrangement device is not used as performance data of an accompaniment part. 6. An arrangement accompaniment generating means for setting a tone color to be prioritized, wherein the arrangement accompaniment generating means converts performance data of a part corresponding to the priority tone color out of parts other than the melody part in the performance data of the original music. 2. The performance data of the partial section is taken out preferentially.
6. The automatic arrangement device according to any one of claims 1 to 5. 7. The automatic arrangement device according to claim 6, wherein a tone color set as a tone color of an accompaniment part of the arranged music piece is set as the priority tone color. 8. The arrangement accompaniment generation means selects performance data for each partial section from performance data of a track other than a track corresponding to a melody part and a track corresponding to a base part among performance data of the original music. The performance data of the track corresponding to the base part of the performance data of the original music is taken out at least in some sections, and the combination of the taken out performance data of each of the partial sections is taken out. 6. The performance data of the at least one accompaniment part in the arranged music piece is generated based on the addition of the performance data of the base part of some sections.
The automatic arrangement device according to any one of the above. 9. The arrangement accompaniment generation means, based on performance data of a plurality of tracks corresponding to parts other than a melody part, a bass part, and a drum part in the performance data of the original music, generates music for each partial section. The automatic arrangement device according to any one of claims 1 to 5, wherein performance data that is conspicuous is selectively extracted. 10. The arrangement melody generating means includes processing performance data extracted from the original music piece, and using the processed performance data as performance data of a melody part of the arranged music piece. 10. The automatic arrangement apparatus according to claim 1, further comprising processing performance data extracted from the original music piece, and using the processed performance data as performance data of an accompaniment part of the arranged music piece. 11. The processing of the performance data in the arrangement accompaniment generation means includes selecting performance data of a specific sounding event and using the selected performance data as performance data of an accompaniment part of the arranged music. 11. The automatic arrangement device according to claim 10, wherein the performance data of the specific sounding event is selected by using the sounding timing of the performance data of a predetermined drum sound part among the music performance data. 12. At least one of the arrangement melody generation means and the arrangement accompaniment generation means includes means for generating performance data of an additional sound in accordance with a key or a chord of a music piece. The automatic arrangement device according to any one of claims 1 to 9, wherein the automatic arrangement device is added to performance data of a melody part or an accompaniment part of the arranged music. 13. The apparatus according to claim 1, wherein at least one of the arrangement melody generating means and the arrangement accompaniment generating means includes reducing performance data in consideration of the number of simultaneous performances from the performance data extracted from the original music. The automatic arrangement device according to any one of the above. 14. The performance data of the original music piece includes section information for distinguishing the music composition of the original music piece by a music section, and the arrangement accompaniment generation means includes: for each music section shown by the section information; 14. The method according to claim 1, further comprising selectively extracting performance data for each section from the performance data of the plurality of tracks other than the track corresponding to the melody part out of the performance data of the original music. Automatic arrangement equipment. 15. An accompaniment data providing means for providing accompaniment data separately from the performance data of the original music piece, wherein the arrangement accompaniment generation means corresponds to the melody part in the performance data of the original music piece. Performance data or accompaniment data is selectively extracted for each partial section from the performance data of tracks other than the track and the accompaniment data from the accompaniment data providing means, and the performance data and accompaniment data of each extracted partial section are extracted. 15. The automatic arrangement apparatus according to claim 1, wherein performance data of the at least one accompaniment part in the arranged music is generated based on the combination. 16. A means for acquiring performance data of an original music composed of performance data of a plurality of tracks; and selectively extracting performance data of each partial section from the performance data of a plurality of tracks of the original music. Primary data generating means for generating one-track arrangement music performance data based on a combination of performance data for each partial section; and two-part arrangement of the generated one-track arrangement music performance data in accordance with a range. And a secondary data generating means for generating performance data of an arrangement music composed of two tracks by dividing the data into two. 17. The performance data of the original music piece includes a musical notation symbol for each performance part. Is used as a musical notation symbol of an arrangement music.
7. The automatic arrangement device according to any one of 6. 18. A musical score symbol corresponding to various musical notation symbols is detected from the generated musical performance data of the arranged music, a musical notation symbol is generated corresponding to the detected musical characteristic, and the generated musical notation symbol is generated. 18. The automatic arrangement device according to claim 1, wherein the automatic arrangement device is provided in association with performance data of the arranged music piece. 19. The performance data of the original music piece includes a music score symbol common to all performance parts, and the common music score symbol is used as a music score symbol common to the performance data of the generated arranged music piece. 1 to 16
The automatic arrangement device according to any one of the above. 20. The apparatus according to claim 1, further comprising means for supplying performance support information in association with said generated arrangement music, wherein said performance support information is provided in association with performance data of said arrangement music. The automatic arrangement device according to any one of the above. 21. The automatic arrangement apparatus according to claim 1, further comprising means for visually providing the generated performance data of the arranged music in a musical score format. 22. A means for acquiring the performance data of the original music piece, acquires the performance data of the original music piece based on a request from a client via a communication network, and transmits the generated performance data of the arranged music piece to a communication network. 21. The automatic arranging apparatus according to claim 1, further comprising: means for distributing to the client via a personal computer. 23. A means for acquiring the performance data of the original music piece, acquires the performance data of the original music piece based on a request from a client via a communication network, and communicates the music score of the generated music data of the arranged music piece. 21. The automatic arranging apparatus according to claim 1, further comprising means for performing facsimile delivery to said client via a network. 24. A means for acquiring performance data of the original music piece, acquires performance data of the original music piece based on a request from a client via a communication network, and prints a musical score of the generated music data of the arranged music piece. 21. The automatic arranging apparatus according to claim 1, further comprising: means for providing a printed musical score of the arranged music piece to the client. 25. A machine readable storage medium containing instructions for causing the machine to execute an automatic arranging method, wherein the automatic arranging method comprises the steps of playing an original music composed of performance data of a plurality of tracks. Obtaining data; and extracting performance data of a track corresponding to the melody part from the performance data of the original song, and generating performance data of a melody part of the arranged music based on the extracted performance data of the track. And selectively extracting performance data of each partial section from the performance data of a plurality of tracks other than the track corresponding to the melody part of the performance data of the original music, and performing the performance data of each extracted partial section. At least one accompaniment par in an arrangement tune based on the combination of And generating performance data of the performance. 26. At least one of the arranged songs
The step of generating performance data of two accompaniment parts includes:
The performance data of one accompaniment part is primarily generated based on the combination of the performance data for each of the extracted partial sections, and the performance data of the one accompaniment part that is primarily generated is determined according to the range. By dividing it into two parts,
26. The storage medium according to claim 25, wherein performance data of one accompaniment part is generated. 27. An accompaniment data providing step of providing accompaniment data separately from the performance data of the original music piece, wherein the step of generating the performance data of at least one accompaniment part in the arranged music piece comprises: Performance data or accompaniment data is selectively extracted for each partial section from the performance data of a track other than the track corresponding to the melody part and the accompaniment data from the accompaniment data providing means in the music performance data. 27. The storage medium according to claim 25, wherein the performance data of the at least one accompaniment part in the arranged music piece is generated based on a combination of the performance data and the accompaniment data for each partial section. 28. A machine-readable storage medium containing instructions for causing the machine to execute an automatic arranging method, wherein the automatic arranging method comprises the steps of: Obtaining data; and selectively extracting performance data for each partial section from the performance data of the plurality of tracks of the original music, and performing one track of data based on a combination of the extracted performance data for each partial section. Generating arrangement music performance data; and generating the two-track arrangement music performance data by dividing the generated one-track arrangement music performance data into two parts in accordance with the range. . 29. The storage according to claim 25, wherein in the step of acquiring the performance data of the original music piece, the performance data of the original music piece is provided based on a request from a client via a communication network. Medium.