JP3407623B2 - Chord progression creation support device and recording medium recording chord progression creation support program - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chord progression creation support device and a recording medium on which a chord progression creation support program is recorded, and in particular, chord progression creation by a user based on performance information such as a melody given from an automatic performance device. The present invention relates to a chord progression creation support device for supporting chord progression creation and a recording medium recording a chord progression creation support program.

[0002]

2. Description of the Related Art Conventionally, there has been known a chord creation support device for automatically creating chord progression data corresponding to performance data by analyzing performance data corresponding to performance information such as a melody, and for supporting chord progression creation. Has been. As a conventional chord progression creation support device, there is a performance data analysis device disclosed in Japanese Patent Application Laid-Open No. 9-26790.

This performance data analysis device divides performance data indicating a sequence of notes into sections according to at least the number of notes, the note tone, and the sounding timing pattern.
The key or chord of the performance data of each divided section is detected, and accurate key detection and chord detection can be performed from the melody information of the performance data.

[0004]

In the above-described conventional performance data analysis apparatus, when new chord progression data is generated, even if the chord progression data is included in the performance data to be analyzed, it is included. The existing chord progression data will be completely replaced by the new chord progression data.

Therefore, there is a problem that the original chord progression data cannot be restored even if the original chord progression data is considered preferable. Therefore, when the chord progression data included in the performance data to be analyzed when the new chord progression data is generated is temporarily saved, and the newly generated chord progression data is unpleasant, It is conceivable that undo processing is performed as in a document or image editor, and the editing process is traced back, so that new editing processing is canceled in order and the state before editing is restored.

However, since this undo processing restores the data by tracing back the editing process, there is a problem in that it is not possible to restore desired chord data portions that form the chord progression data.

Therefore, an object of the present invention is to support the creation of chord progression data, and when the performance data to be analyzed already contains chord progression data, the chord progression data included in the performance data is analyzed. It is an object of the present invention to provide a chord progression creation support device and a recording medium recording a chord progression creation support program that can be used to facilitate chord progression creation.

[0008]

In order to solve the above-mentioned problems, the structure according to claim 1 is included in the performance information data.
By analyzing the note data, the note data
Corresponding new chord progression data (hereinafter, new chord that progression data) to create the support, said a new chord chord progression creation support apparatus for creating a progress data corresponding to the performance information data, the performance information The data includes
In addition to the note data, the original chord progression data is included.
By analyzing the notebook data,
Corresponding chord progression candidate data composed of a plurality of new chord progression candidate data, and the original chord progression data as a candidate for the chord data constituting the new chord progression data to be created. By replacing the original chord data presenting means for presenting the original chord data and a part of the plurality of new chord candidate data constituting the chord progression candidate data with the presented partial chord data. And a new chord progression data creating means for creating new chord progression data.

According to the structure of claim 2, the performance information data is
By analyzing the included note data,
Support the creation of new chord progression data corresponding to
The new chord progression data corresponding to the performance information data.
A chord progression creation support device for creating data
In addition to the note data mentioned above, the performance information data includes the original chord
Including line data, to analyze the note data
The new chord candidate data corresponding to the note data.
The highest priority chord progression candidate day
And a plurality of new chord candidate days corresponding to the note data.
Other chord progression candidate data composed of
Chord progression candidate data generation means and before attempting to create
As a candidate for the chord data that constitutes the new chord progression data
The original chord data that make up the original chord progression data.
Means for presenting original chord data and candidates for the chord data
As a new chord that constitutes the other chord progression candidate data
New chord candidate data presenting means for presenting candidate data, and
A plurality of chord progression candidate data with the highest priority
Of at least part of the new chord candidate data of
Some original chord data and some of the presented new chords
By replacing with the candidate data, the new chord progression data
Equipped with a new chord progression data creation means for creating data
It is characterized by that.

According to a third aspect of the present invention, the performance information data storing means for storing performance information data including note data such as a melody in advance, and the chord progression data when the performance information data includes chord progression data, The chord progression data stored in the performance information data storage means is saved, and the saved chord progression storage means for storing the saved chord progression data as original chord progression data, and the note data included in the performance information data. Chord generation means for analyzing and automatically generating chord progression data corresponding to the note data, supply means for supplying the automatically generated chord progression data to the performance information data storage means, and saving to the saved chord storage means The original chord progression data presenting means for presenting the original chord progression data to the user, and the original chord progression data presenting means Selecting means for selecting at least a part of the presented original chord progression data as selected chord progression data; and when the selected chord progression data is selected by the selecting means, the supplying means stores the performance information data in the performance information data storage means. Of the supplied chord progression data, a portion corresponding to the selected chord progression data is replaced with the selected chord progression data, and chord progression data generation means for generating new chord progression data is provided. .

According to a fourth aspect of the present invention, in the configuration of the third aspect , the original chord progression data presenting means presents the original chord progression data for each of predetermined sections divided into a plurality of sections, and the selecting means , The presented original chord progression data is selected for each of the predetermined sections.

According to a fifth aspect of the present invention, the performance information data storing means for storing performance information data including note data such as a melody in advance, and the chord progression data when the performance information data includes chord progression data, A saved chord storage unit that saves the chord progression data stored in the performance information data storage unit and stores the saved chord progression data as original chord progression data, and an element that presents the original chord progression data to the user. Means for presenting chord progression data,
The note data included in the performance information data is analyzed to automatically generate chord progression data with the highest priority corresponding to the note data, and
Chord generating means for automatically generating other corresponding chord progression data, and the automatically generated chord progression data with the highest priority.
Supplying means for supplying data to the performance information data storage means
And other chord progression data presenting means for presenting the other chord progression data to the user, and the other chord progression data and the original chord data presented by the other chord progression data presenting means. From the original chord progression data presented by the presenting means, at least a part of the other chord progression data to be supplied to the performance information data storage means or at least a part of the original chord progression data is selected. Selecting means for selecting as chord progression data, and the supply
Supplied to the performance information data storage means by means
Of the chord progression data with the highest priority, the selected chord
The part corresponding to the progression data is placed in the selected chord progression data.
And a chord progression data generation unit that generates new chord progression data by replacing the chord.

According to a sixth aspect of the present invention, in the configuration of the fifth aspect, the new chord progression data presenting means presents the new chord progression data for each of a plurality of divided first predetermined sections, The original chord progression data presenting means presents the original chord progression data in each of a plurality of divided second predetermined sections, and the selecting means presents the new chord progression data presented in each of the first predetermined sections. Or the presented original chord progression data is selected for each of the second predetermined intervals.

According to a seventh aspect of the present invention, the performance information data is
Includes note data and original chord progression data.
To analyze the note data included in the performance information data
In order to analyze the note data , a computer of a chord progression creation support device that supports creation of new chord progression data corresponding to the note data and creates the new chord progression data corresponding to the performance information data Yo
A chord progression candidate data generation function for generating chord progression candidate data composed of a plurality of new chord candidate data corresponding to the note data, and as a candidate for chord data constituting the new chord progression data to be created. An original chord data presenting function for presenting original chord data constituting the original chord progression data, and a part of a plurality of new chord candidate data constituting the chord progression candidate data, the presented partial original chord It is characterized in that a chord progression creation support program for realizing a new chord progression data creation function for creating the new chord progression data by replacing with data is recorded.

[0015]

[0016]

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Next, preferred embodiments of the present invention will be described with reference to the drawings. [1] Hardware Configuration of Embodiment FIG. 1 shows a schematic configuration block diagram of an automatic performance system.

The automatic performance system 10 includes a controller 11 for controlling the entire automatic performance system 10, a keyboard unit 12 for inputting performance data or performing a manual performance, a keyboard unit 12 and a controller 1.
1, a keyboard interface 13 that performs an interface operation with the device 1, an input device 14 such as a mouse or a keyboard for inputting various data, and an input device interface that performs an interface operation between the input device 14 and the controller 11. 15, and is comprised.

Further, the automatic performance system 10 includes a display circuit 16 for performing various displays and a tone generator circuit 18 for generating a music signal based on performance data supplied via the bus 17.
And an effect circuit 19 for performing various effect processing (effect processing) on the music signal output from the sound source circuit 18, and a sound system 20 for amplifying the sound signal input from the effect circuit 19 and outputting the sound signal as an acoustic signal. It is equipped with.

Further, the automatic performance system 10 includes a RAM 21 for temporarily storing various data, a ROM 22 for storing control programs and fixed data for control, a timer 23 for various timing controls, a hard disk drive and a flexible disk drive. , CD-ROM drive, MO (Magneto Optical) disk drive,
And an external storage device 24 such as a DVD (Digital Video Disc) drive.

Furthermore, another external MIDI device 25
And a communication interface 29 for exchanging various data with an external server computer 28 via a communication network 27.

In this case, the controller 11
Keyboard interface 13, input device interface 15, display circuit 16, sound source circuit 18, effect circuit 19, R
It is connected to the AM 21, the ROM 22, the external storage device 24, the MIDI interface and the communication interface via the bus 17.

The method of the tone generator circuit 18 may be a method such as a waveform memory method, an FM method, a physical model method, a harmonic synthesis method, a formant synthesis method, or a VCO + VCF + VCA analog synthesizer method.

[2] Task Configuration of the Embodiment FIG. 2 shows a block diagram of the task configuration of the automatic performance system. The task of the automatic performance system is roughly classified into an automatic chord generation and extraction task 21 that receives note data from an automatic performance device 22 described later, analyzes the note data, and generates or extracts one or a plurality of chord progression data.
And automatic performance data including note data such as melody, chord data corresponding to the melody and style data which is performance style data, and perform automatic performance based on the stored automatic performance data.
2 is provided.

In this case, the format of the automatic performance data is "event + relative time" in which the time of occurrence of the performance event is represented by the time from the previous event,
"Event + absolute time" expressed as the time when the performance event occurred, absolute time within the song or measure, and the pitch (rest) that represents the performance data by the pitch and note length (or rest and rest length) of the note. ) + Note length) method, a memory area is secured for each minimum division unit of the performance, and a "solid" method in which a performance event is stored in a memory area corresponding to the time at which the performance event occurs.

The automatic performance data may have a format in which a plurality of channel (performance part) data are mixed, or may have a format in which the data of each channel is divided for each track.

The automatic performance task 22 stores a set of note data composed of timing data representing the timing of note generation and note data (pitch data, velocity data, gate time data) in the order of performance (see FIG. a)), a note sequencer 25 that executes processing based on the stored note data set, and a set of timing data and chord data (root + type, and + base if necessary) that represents the timing of chord change. A code sequencer 26 for sequentially storing (see FIG. 3B) and executing processing based on the stored data, and a set of style data, which is timing data indicating the timing of style change and performance style data, in the order of performance progress. A processor that stores the data (see FIG. 3C) and executes processing based on the stored data. And it is configured to include the Le sequencer 27.

In this case, the note sequencer 25
In some cases, in addition to the note data, data for controlling volume, tone color, etc. may be stored. The stored note data set may be input by the user or may be existing (commercially available) song data.

The note data set includes one or a plurality of track data, and at least one track data is designated as a chord progression generation / extraction target. Further, "key designation timing data + key designation data" can be arbitrarily included at any position in the progress of the performance.

Further, in the chord sequencer 26, the chord data set recorded in the order of progression of the performance constitutes chord progression data. The style data is performance data representing accompaniment parts such as a rhythm part, a bass part, and a chord packing part, and is data in which the performance data is patterned for each performance style such as rock and pops.

One style data is played mainly in the music, such as main style A data, main style B data, ... It is composed of a plurality of section data such as intro style data and ending style data played at the ending portion of the music, and each section data corresponds to one performance pattern. That is, the playing pattern is specified by the playing style and section.

Each section data is appropriately switched and played during the performance of one music piece. The switching timing, which is the break of the section in the style data, can be called a musical break.

For example, the timing at which the sections are switched as described below can be said to be a musical break. Timing when style data switches from intro style data to main style A data

Timing at which main style B data is switched to main style A data Timing at which main style B data is switched to ending style data

Timing of switching from one playing style to another playing style These musical delimiter positions often coincide with musical delimiter positions such as melody (hereinafter, this is referred to as musical delimiter position).

In the style sequencer 27, timing data representing the switching timing of the performance style and style data specifying the style data to be switched are stored as the music progresses, and a set of this timing data and style data is stored. It composes style progression data.

[3] Operation of Embodiment (3.1) Configuration of Processing Window Next, prior to the explanation of the operation, a processing window (processing screen) displayed on a display (not shown) of the display circuit 16 at the time of generating chord progression data candidates. Will be described.

FIG. 4 shows an example of the processing window. The processing window 30 of the automatic performance system 10 is roughly classified into an automatic chord generation / extraction window 31 for displaying the processing state of the automatic chord generation / extraction apparatus 21 and each track (or block: track) of the automatic performance apparatus 22. And a track information display window 32 for displaying a setting state of (representing a group of performance data).

The automatic chord generation / extraction window 31 sets a target information display selection area 35 for displaying information about the current edit target or selection target, a chord progression data generation style, and gives a chord progression data generation instruction. A chord progression data generation instruction area 36 and a chord progression data display editing area 37 are provided.

The target information display selection area 35 includes a target display combo box 38 for displaying the current edit target or selection target (“Block22” in the figure) and the current cursor 3.
And a cursor information display area 39 for displaying various information at the position of 9.

The chord progression data generation instruction area 36 includes a chord tendency instruction combo box 40 for instructing a chord tendency of chord progression data candidates to be generated, and an accompaniment style instruction combo box 41 for instructing an accompaniment style. , Chord progression data generation start instruction button 42
And are provided.

The chord progression data display / editing area 37 is generated by a bar number display area 45 for displaying the bar number of the chord progression chord generation and editing object, and a chord progression data display area 46 for displaying the chord progression data candidate at the present time. A recommended chord (chord data) group display area 47 that displays a plurality of chord progression data as a recommended chord data group, and a chord data group that forms the chord progression data when the chord progression data to be edited exists, is the original chord. Original chord (chord data) display area 48 displayed as progress data
And are provided.

In the recommended chord (chord data) group display area 47, a plurality of chord progression series (4 bar progression series, 2 bar progression series, 1 bar progression series: each series will be described in detail later) is displayed. Then, in each chord progression series, chord blocks divided into units of 4 bars, units of 2 bars, and units of 1 bar are arranged and displayed as the performance progresses.

Each chord block corresponds to chord progression data in units of 4 bars, chord progression data in units of 2 bars, chord progression data in units of 1 bar, and the user selects chord progression data in units of chord blocks. can do. In addition, the original chord (chord data) display area 48
, Chord blocks obtained by dividing the original chord progression data in units of one bar are arranged and displayed as the performance progresses.

The user can select the original code in code block units (that is, in units of one bar).
The division is not limited to one bar unit, and may be divided into beat units or two beat units, or a section in which one chord continues may be divided into one section.

The track information display area 32 has a plurality of track numbers and MIs assigned to the respective track numbers.
Track number / chan EN to display DI channel number
A stored number display area 50, a block display area 51 that is stored corresponding to each track number, and displays one or a plurality of blocks that constitute the performance data of the track for each track, and a block display area 51 that is stored in the code sequencer. It comprises a chord progression data display area 52 for displaying the chord progression and a style progression data display area 53 for displaying the style progression stored in the style sequencer.

In this case, the block display area 51
One or a plurality of blocks to be targeted for chord generation are designated from among the one or a plurality of blocks displayed in (in Fig. 4, "block 22" of "Track 13" is targeted for chord generation). Is specified as).

It is also possible to specify a track instead of a block, that is, to specify all the note data included in the track. Further, in FIG. 4, only a part of many tracks and blocks is displayed in the track number / channel number display area 50 and the block display area 51, and displayed on the right side of the block display area. Other tracks or blocks can be displayed by changing the display area using the scroll bar.

(3.2) Overall Operation Next, the operation of the embodiment will be described with reference to FIGS. FIG. 5 shows a main processing flowchart of the embodiment. Track information 32 of the processing window 30 shown in FIG. 4 is displayed on the screen of the display, and
When an automatic chord generation / extraction task activation instruction is issued by a switch (not shown) or the like in a state in which one or a plurality of blocks are specified for generation of chord progression data among one or a plurality of displayed blocks, Initialization processing such as data setting and memory area reservation is performed, and the automatic chord generation / extraction window 3 among the processing windows 30 as shown in FIG. 4 is displayed on the screen of the display.
1 is opened (step S1).

Next, the controller checks the contents of the chord sequencer (step S2) and determines whether chord progression data already exists (step S3). Less than,
The chord progression data that already exists in the chord sequencer is called the original chord progression data. In the determination of step S3, if the original chord progression data exists (step S3).
3; Yes), the original chord progression data in the chord sequencer is acquired and written in the original chord memory (step S
4) The contents of the original code memory are displayed in the original code display area 48 in the processing window (step S5), and the process proceeds to step S6.

In the determination in step S3, if the original chord progression data does not exist (step S3; No),
The content of the original code memory is displayed in the original code display area 48 in the processing window, that is, blank data is displayed (step S5), and the process proceeds to step S6.

Next, the controller 11 determines whether or not an event such as a keyboard operation or a mouse operation has occurred (step S6). In the determination of step S6, if no event has occurred (step S6
6; No), the standby state is maintained.

If an event has occurred in the determination in step S6 (step S6; Yes), the content of the event that has occurred is determined (step S7). Step S
Since the operations after 7 differ depending on the content of the event that has occurred, the cases will be described separately below.

(3.2.1) In the determination of the event step S7 of the chord progression data generation start instruction button 42, if the generated event content is the operation of the chord progression data generation start instruction button 42, the chord progression Shift to data candidate generation processing (step S8)

Now, the chord progression data candidate generation processing will be described with reference to the chord progression data candidate generation processing flowchart of FIG. First, the controller 11 analyzes the note data corresponding to the specified track or block as the chord generation target, and detects the above musical delimiter position based on the number of notes, the note length, and the sounding timing pattern.

Alternatively, instead of analyzing the note data, the controller 11 detects the musical break position based on the style data change (switch) timing in the style sequencer. Then, the part of the track or block sandwiched between the two musically separated positions is set as a section (step S21).

The style change timing in the style sequencer includes, for example, the style performance start timing of new main, intro, fill-in, etc., and the change timing to another performance style. More specifically, as shown in FIG. 7, the timing at which a new style performance is started or the timing at which the performance is changed to another performance style is set as a musical delimiter position, and a track sandwiched between two musical delimiter positions or The block part is a section.

Next, the key is detected by analyzing the note data of the specified track or block, or by searching the key specification data stored in the chord sequencer, and set as detected key data ( Step S22). Next, a chord progression data candidate is generated using the set section and detected tone data, and written in the chord progression candidate memory (step S23).

More specifically, as the chord progression pattern, for example, a large number of chord progression patterns typical of chord progression patterns of different lengths, such as 4-bar progression, 2-bar progression, and 1-bar progression, are stored in a database. Is stored in advance. In this case, it is easy to handle the chord progression pattern in units of N measures (N: natural number), but the chord progression pattern is stored in units of less than a measure, for example, in beat units or two beat units. It can also be configured to do so.

The chord progression patterns of different lengths correspond to the above-mentioned chord progression series. More specifically, as a chord progression pattern of four measures, [AMaj → Bmin7 → AMaj → DMaj] → [DMaj → AMaj →
Bmin7 → E7th] → …… and so on. The combination in [] is fixed.

As a chord progression pattern of two measures, [DMaj → E7th] → [C # 7th → F # min] → [DMaj → AM
aj] → …… and so on.

As a chord progression pattern of one measure progress, [F # min] → [Bmin] → [C # 7th] → [F # min] →
[Bmin] → ... and the like.

The chord progression pattern is not limited to one chord per bar, and there are some chords each including a plurality of chords and one chord over a plurality of bars. The chord progression pattern of N-bar progression is assigned from the beginning of each section as shown in FIG. 7. However, in some sections, the chord progression pattern of N-bar progression may lack the number of bars and may not be assigned.

For example, in section A, in a chord progression pattern of four-bar progression or two-bar progression, the number of bars is insufficient and a bar PH1 to which the chord progression pattern is not assigned is formed. The chord progression may be selected from the N1 (N1 <N) measure progressions to which the pattern is assigned.

The database of chord progression patterns of N-bar progression is actually described in the frequency format with the tonic of the key as a reference, and this is realized by the key information obtained by any of the above-mentioned methods. Converted to chord progression.

Then, the controller 11 analyzes the note data by applying music knowledge, extracts the harmony sounds (candidates) in the note data, and obtains each section (4 bars, 2 bars, 1 bar) obtained. The chord progression (candidate) and the actual chord progression are compared, and the matching chord progression pattern is used as chord progression (candidate) data.

Subsequently, the generated chord progression candidate data is displayed in the recommended chord group display area 47 (step S2).
4).

When a plurality of chord progression (candidate) data are matched (matched) with respect to one section, only the one with the highest priority among them is displayed on the display and a predetermined operation is performed. The user can also select other chord progression (candidate) data.

In this case, the priority is a predetermined rule (for example, the one first found in the database,
It is decided based on the ones that are well connected in the front and back sections. Next, the controller 11 writes, in the chord memory, a chord progression data candidate having a higher priority among the chord progression data candidates of four-bar progression, two-bar progression, and one-bar progression, and displays the chord progression data display area (chord section) 46 Transfer (supplied) to the code sequencer.

In this case, the priority is determined based on a predetermined rule (for example, one having good connection in the preceding and following sections). As a result, the chord progression data display area 5
2, the chord progression data candidates that are the same as those displayed in the chord progression data display area (chord portion) 46 are displayed in 2, as shown in FIG.

When the above operation is completed, the process proceeds to step S6, and the same process is performed thereafter.

(3.2.2) In the determination of the recommended chord group selection step S7, the content of the event that has occurred has data in the chord progression candidate memory and is displayed in the recommended chord group display area 47. When the chord block is selected and operated, the chord progression data corresponding to the operated chord block in the chord progression candidate memory is written in the chord memory, displayed in the chord progression data display area (chord section) 46, and the chord sequencer is displayed. Is transferred (supplied) to (step S9).

As a result, the chord progression data display area 52
As shown in FIG. 4, the same chord progression data candidates as those displayed in the chord progression data display area (chord portion) 46 are displayed in the area.

In order to show which code block is selected, the display mode (color, blinking display, reverse display, etc.) of the selected code block should be different from that of other code blocks. Is also possible. When the above operation is completed, the process proceeds to step S6 and
Perform similar processing.

(3.2.3) In the determination of the original chord selection step S7, the generated event content is the chord block corresponding to the chord which has data in the original chord memory and which constitutes the original chord progression data. If it is selected, the chord data corresponding to the operated chord block in the original chord memory is written in the chord memory, and the chord progression data display area (chord portion) 4
6 and the data is transferred (supplied) to the code sequencer (step S10).

As a result, the chord progression data display area 52
As shown in FIG. 4, the same chord progression data candidates as those displayed in the chord progression data display area (chord portion) 46 are displayed in the area. In addition, in order to show which is the selected code block, the display mode (color, blinking display, reverse display, etc.) of the selected code block can be different from other code blocks. is there.

When the above operation is completed, the process proceeds to step S6, and the same process is performed thereafter.

(3.2.4) Close Button If it is determined in step S7 that the event content occurred is the operation of the close button BC (see FIG. 4), automatic chord generation extraction from the processing window concerned. The window 31 is closed and the process ends (step S1).
1).

[4] Effects of Embodiment As described above, according to the present embodiment, even when a new chord progression data candidate is generated, the original chord progression data which is the already existing chord progression data is destroyed. Instead, since a part of the original chord progression data can be used as a part of the newly created chord progression data, it is possible to support advanced creation / editing work of the chord progression data.

[5] Modification of Embodiment In the above embodiment, the original chord progression data can be selected for each chord block in units of one bar, but the user does not have the concept of a chord block and the user can proceed with the original chord progression. It can also be configured to select any section of the data. In this case, the original chord progression data may be selected in bar units, or may be selected in non-bar units (for example, beat units). Of course, one chord may be selected independently.

In the above embodiment, the recommended chord progression is a plurality of series (4 bar series, 2 bar series,
The chord progression data of one bar sequence) is generated and presented, but it is also possible to present only one sequence. Further, the chord progression data is not limited to being selectable for each chord block, and the user may be allowed to select an arbitrary section.

Furthermore, in the above-described embodiment, the case where dedicated hardware is used as the tone generator circuit has been described, but the tone generator circuit is not limited to using the dedicated hardware and a DSP + microprogram is used. May be configured as a sound source circuit, or a CPU
Alternatively, the tone generator circuit may be configured by a software program. Further, the sound generation channel may be one in which a plurality of sound generation channels are formed by using one sound generation circuit in a time division manner, or may be in a form in which one sound generation channel is constituted by one sound generation circuit.

[0083]

As described above, according to the structure of claim 1 or 7 , the original chord progression data is formed.
The original chord data is presented and the generated chord progression candidate data
A part of a plurality of new chord candidate data constituting the
By replacing with some of the original chord data
Since the new chord progression data is created, the original chord data can be effectively used to create the new chord progression data,
It is possible to support advanced creation and editing work of chord progression data.

According to the configuration of claim 2, in addition to the effect of the configuration of claim 1, new chord progression data creating means
Is a composite of the chord progression candidate data with the highest priority.
At least some of the new chord candidate data
Some original chord data and some
The new chord by replacing it with new chord candidate data
Since the progress data is created, the choices of chord candidate data are increased, and it is possible to support the creation of various chord progress data.

[0085]

According to the third aspect, chord progression data can be created from various original chord progression data, and various chord progression data can be easily created.

According to the configuration of claim 4 , in addition to the effect of the configuration of claim 3 , the original chord progression data is presented for each of a plurality of divided predetermined sections, and the element presented for each predetermined section is presented. Since the chord progression data is selected, it is possible to easily create various chord progressions rich in variety.

According to the configuration of claim 5 , the highest priority is given.
High chord progression data selected by the selection means
Of the selected chord progression data
Create new chord progression data by substituting line data
As a result, various chord progression data can be easily created.

According to the structure of claim 6 , in addition to the effect of the structure of claim 5 , the new chord progression data presented for each first predetermined section is selected, and for each second predetermined section. Since the original chord progression data presented in step 1 is selected, more various chord progression data can be created.

[0090]

[Brief description of drawings]

FIG. 1 is a schematic block diagram of an automatic performance system.

FIG. 2 is a schematic functional block diagram of an automatic performance system.

FIG. 3 is an explanatory diagram of data storage states of a note sequencer, a chord sequencer, and a style sequencer.

FIG. 4 is an explanatory diagram of an example of a processing window.

FIG. 5 is a main processing flowchart of the embodiment.

FIG. 6 is a chord progression data candidate generation processing flowchart.

FIG. 7 is a diagram for explaining the relationship between musical breaks and chord progression pattern assignments.

[Explanation of symbols]

10 Automatic performance system 11 Controller 12 keyboard units 13 keyboard interface 14 Input device 15 Input device interface 16 Display circuit 17 bus 18 sound source circuit 19 Effect circuit 20 sound system 21 RAM 22 ROM 23 timer 24 External storage device 25 Other MIDI equipment 26 MIDI interface 28 server computer 29 Communication interface 30 processing window 31 Automatic chord generation extraction window 32 Track information display window 35 Target information display selection area 36 Chord progression data generation instruction area 37 Chord progression data display edit area 47 Recommended chord (chord data) group display area 48 original chord (chord data) display area

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiroshi Miyamoto 10-1 Nakazawa-machi, Hamamatsu-shi, Shizuoka Yamaha Stock Company (72) Inventor Kenichi Saito 10-1 Nakazawa-machi, Hamamatsu-shi, Shizuoka Yamaha Stock Ceremony In-house (56) Reference JP 63-80299 (JP, A) JP 7-64557 (JP, A) JP 9-34463 (JP, A) JP 59-13295 (JP, A) ) (58) Fields surveyed (Int.Cl. ⁷ , DB name) G10H 1/38 G10H 1/00 101-102

Claims (7)

(57) [Claims] 1. Note data included in performance information data
To support the creation of new chord progression data (hereinafter referred to as new chord progression data) corresponding to the note data, and to analyze the new chord progression data corresponding to the performance information data. A chord progression creation support device for creating the performance information data, in addition to the note data,
Chord progression data is included, and the note data is analyzed by analyzing the note data.
The chord progression candidate data generation means for generating chord progression candidate data composed of a plurality of new chord candidate data corresponding to the chord, and the original chord as a candidate for the chord data constituting the new chord progression data to be created. Original chord data presenting means for presenting original chord data constituting the progress data, and replacing a part of the plurality of new chord candidate data constituting the chord progression candidate data with the presented partial chord data And a new chord progression data creation means for creating the new chord progression data according to the above. 2. Note data included in performance information data
By analyzing the
Supports creation of chord progression data, the performance information data
Chord progression that creates the new chord progression data corresponding to
In the creation support device, the performance information data includes the original data in addition to the note data.
Chord progression data is included, and the note data is analyzed by analyzing the note data.
Composed of multiple new chord candidate data corresponding to
The highest priority chord progression candidate data and the note data
Composed of multiple new chord candidate data corresponding to
Chord progression candidate data for generating other chord progression candidate data
Generating means and the sum of the new chord progression data to be created.
The original chord progression data is configured as a candidate for sound data.
And the original chord data presentation means to present the original chord data that, as a candidate of the chord data, the other chord progression candidate de
New chord candidates that present the new chord candidate data that make up the data
A data presenting means and a unit for composing the chord progression candidate data with the highest priority.
Of at least some of the new chord candidate data
Part of the original chord data and some of the presented new chords
The new chord progression by replacing with the note candidate data
Equipped with new chord progression data creation means for creating data
A chord progression creation support device characterized in that 3. Performance information data storage means for storing performance information data including note data such as a melody in advance; and in the case where the performance information data includes chord progression data, the performance information data storage means. The saved chord progression data is saved and the saved chord progression data is stored as original chord progression data, and the note data included in the performance information data is analyzed to analyze the note data. Chord progression data for automatically generating chord progression data, supply means for supplying the automatically generated chord progression data to the performance information data storage means, and original chord progression data saved in the retracted chord storage means And the original chord presented by the original chord progression data presenting means, Selecting means for selecting at least a part of the row data as selected chord progression data; and, when the selected chord progression data is selected by the selecting means, the chord progression supplied to the performance information data storage means by the supply means. A chord progression creation support device comprising chord progression data generation means for generating new chord progression data by replacing a portion of the data corresponding to the selected chord progression data with the selected chord progression data. . 4. The chord progression creation support device according to claim 3, wherein the original chord progression data presenting means presents the original chord progression data for each of predetermined sections divided into a plurality of sections, and the selection means A chord progression creation support device, characterized in that the presented original chord progression data is selected for each predetermined section. 5. A performance information data storage means for storing performance information data including note data such as a melody in advance, and in the performance information data storage means when the performance information data includes chord progression data. A saved chord storage unit that saves the stored chord progression data and stores the saved chord progression data as original chord progression data; and an original chord progression data presentation unit that presents the original chord progression data to the user. The note data included in the performance information data is analyzed to automatically generate chord progression data with the highest priority corresponding to the note data, and
The corresponding chord progression data that automatically generates other corresponding chord progression data, and the automatically generated chord progression data with the highest priority.
A supply means for supplying to said performance information data storing means, and the other chord progression data presenting means for presenting the other chord progression data to the user, presented by the other chord progression data presentation means the
From other chord progression data and original chord progression data presented by the original chord data presenting means, at least a part of the other chord progression data or the original chord progression data to be supplied to the performance information data storage means. Selecting means for selecting at least a part of each as chord progression data; and supplying the performance information data storage means by the supplying means .
Of the supplied chord progression data with the highest priority,
The portion corresponding to the selected chord progression data is set to the selected chord progression data.
Data to generate new chord progression data.
Chord progression creation support apparatus characterized by comprising a chord progression data generation unit that. 6. The chord progression creation support device according to claim 5, wherein the new chord progression data presenting means presents the new chord progression data for each of a plurality of divided first predetermined sections, the original chord The progress data presenting means presents the original chord progression data for each of the plurality of divided second predetermined sections, and the selecting unit selects the new chord progression data presented for each of the first predetermined sections. Alternatively , the chord progression creation support device is characterized in that the presented original chord progression data is selected for each of the second predetermined sections. 7. The performance information data includes note data and original data.
Includes chord progression data, included in the performance information data
By analyzing the note data
Of the note data by analyzing the note data in a computer of a chord progression creation support device that supports creation of new chord progression data corresponding to the performance information data and creates the new chord progression data corresponding to the performance information data.
A chord progression candidate data generating function for generating chord progression candidate data composed of a plurality of new chord candidate data corresponding to a chord, and the original chord as a candidate for the chord data constituting the new chord progression data to be created. An original chord data presentation function of presenting original chord data constituting progress data, and replacing a part of a plurality of new chord candidate data constituting the chord progression candidate data with the presented partial chord data. A computer-readable recording medium in which a chord progression creation support program for realizing the new chord progression data creation function for creating the new chord progression data is recorded.