JP2940449B2 - Automatic performance device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic performance apparatus for storing a plurality of types of automatic performance data such as accompaniment patterns, reading out one of them according to designation, and executing an automatic performance.

[0002]

2. Description of the Related Art In a conventional automatic performance apparatus, a number is assigned to a plurality of automatic performance style data, and accompaniment pattern data designated by a style number is read to perform an automatic performance.

[0003] An automatic performance device in which a plurality of types of accompaniment patterns used during automatic performance are stored in a main body has been put to practical use. The song data used in such an automatic performance device includes melody sequence data and accompaniment pattern designation data. When the automatic performance device reads out the accompaniment pattern designation data from the song data, the accompaniment pattern is read. Is played automatically.

[0004]

In such an automatic performance device, when performing automatic performance with song data created by another automatic performance device, an accompaniment pattern which is not stored in the song data is specified. The specified data may be included. In addition to the song data, MID
Even when an accompaniment pattern is specified from an external device via an I cable or the like, an accompaniment pattern that is not stored by itself may be specified. In such a case, the conventional automatic performance device has no function of selecting another accompaniment pattern, so that the automatic performance of the accompaniment cannot be performed at all.

In the case of song data which does not include the accompaniment pattern designation data, any desired accompaniment pattern data can be combined and played back simultaneously. And the automatic performance might not go well.

If the song data to be automatically played is not specified, the song data is searched and the accompaniment pattern is searched. Conventionally, the song data and the accompaniment pattern data are designated by specifying the name or number. Since the selection has been made, the user cannot select the song data or the accompaniment pattern data without knowing the content of the symmetry to be selected.

It is an object of the present invention to provide an automatic performance apparatus which can execute an automatic performance by substituting other similar performance data even when designated performance data is not stored.

[0008]

According to a first aspect of the present invention, there is provided a performance data storage means for storing a plurality of types of performance data which are sequence data of an automatic performance, and a performance data specification for designating performance data to be automatically performed. Means for performing automatic performance by reading specified performance data from the performance data storage means, wherein the performance data designating means is stored in the performance data storage means. When performance data that is not stored is specified, at least the performance data stored in the performance data storage
A substitute means for executing the automatic performance means by substituting other performance data of the same or similar music genre is provided.

[0009] The invention of claim 2 of the present application is an automatic performance
Store multiple types of performance data as sequence data
Designates performance data storage means and performance data to be automatically played
Means for specifying performance data to be
Executing an automatic performance by reading from the performance data storage means
Automatic playing means comprising:
The performance data designating means is stored in the performance data storage means.
If you specify performance data that is not
At least the same time signature or similar
The automatic performance means is implemented by substituting other similar performance data.
A substituting means for performing the operation.

[0010] The invention of claim 3 of the present application is directed to an automatic performance
Store multiple types of performance data as sequence data
Designates performance data storage means and performance data to be automatically played
Means for specifying performance data to be
Executing an automatic performance by reading from the performance data storage means
Automatic playing means comprising:
The performance data designating means is stored in the performance data storage means.
If you specify performance data that is not
At least the beats stored in memory are the same or
The automatic performance means is replaced by other similar performance data.
It is characterized by having a substitute means for executing.

[0011] The invention according to claim 4 of the present application is characterized in that the substitute hand
The performance data to be substituted for the specified performance data.
Table storing the performance data, and the performance data storage means.
When performance data not stored in the
Hands to search the table and find substitute performance data
And a step.

The invention of claim 5 of the present application is directed to an automatic performance
Stores multiple types of performance data as sequence data,
At least one of music genre, beat, beat
Multiple identical or similar performance data in the same group
Grouped into groups and each group has a different first finger
With performance information and the performance data of each group
Performances with the second designation information indicating each variation
Performance data storage means and performance data to be automatically played.
Means for designating performance data, and
Executes automatic performance by reading from performance data storage means
Automatic performance means and the performance data designating means
If performance data that is not stored in the
The specified performance data and the first specified information are the same.
The performance data which is different from the second specified information and is substitute data
And the substitute data selection means for selecting and, data selection for surrogate
Using the performance data selected by the means,
And substituting means for executing .

[0013]

[0014]

According to a sixth aspect of the present invention, a first storage means for storing first automatic performance data including characteristic data representing characteristics of the stored automatic performance data, and a characteristic of the stored automatic performance data. And second automatic performance data having characteristic data that matches or is similar to the characteristic data included in the first automatic performance data. A search means, and a reproducing means for reproducing the first automatic performance data and the retrieved second automatic performance data in parallel are provided.

[0016]

In the automatic performance device of the present invention, a plurality of performance data are stored in the performance data storage means, and the performance data designated by the performance data designating means is read from the performance data storage means to execute an automatic performance. . In this case, when the performance data designating means designates performance data that is not stored in the performance data storage means, the music genre, time signature, or beat having the same music genre, time signature or beat is selected from the performance data stored in the performance data storage means . Perform an automatic performance using a substitute. As a result, even if there is no designated performance data, the performance cannot be disabled.

As a method of selecting performance data to be substituted, performance data to be substituted is stored in a substitution table, and when performance data that is not stored in the performance data storage means is designated, the substitution table is searched and replaced. When performance data that is not stored in the performance data storage means is specified, the performance data storage means is searched, and the genre is the same as the specified performance data, similar, and the time signature is the same. There is a method of extracting performance data having a fixed relationship such as the same beat as performance data to be substituted. By doing so, automatic performance can be performed in a close atmosphere even if other performance data is substituted.

In the performance data storage means, performance data having a fixed relationship such as the same genre, similarity, the same time signature, and the same beat can be stored in a group. In this case, when performance data that is not stored in the performance data storage means is specified, the other performance data of the group to which the specified performance data belongs is extracted as substitute data, whereby an automatic performance with a close atmosphere can be achieved. Will be possible.

Further, in the automatic performance device of the present invention, automatic performance data including characteristic data is stored in each of the first storage means and the second storage means. Then, automatic performance data matching or similar to the characteristic data included in the automatic performance data stored in the first storage means is searched from the second storage means, and the automatic performance data in the first storage means is searched. The automatic performance data retrieved from the second storage means is reproduced in parallel. As a result, a performance in which the automatic performance data in the first storage means and the automatic performance data in the second storage means match musically becomes possible.

[0021]

[0022]

FIG. 1 is a block diagram of an electronic musical instrument having an automatic performance function according to an embodiment of the present invention. This electronic musical instrument is provided with a keyboard 17, and a player can play a musical tone by himself / herself. A floppy disk storing song data, which is automatic performance data of a musical composition, is set in the floppy disk drive 13. Automatic performance can also be performed by reading the song data. The song data is sequence data in which various event data and delta time data indicating a time interval between events are stored alternately as shown in FIG. The event data in the song data is composed of melody data for controlling the sounding / muting of the melody and data designating style data which is accompaniment pattern data. The style data is stored in a ROM (style memory) of the electronic musical instrument. The style data is sequence data that stores accompaniment patterns in several measures. When the electronic musical instrument reads out data designating style data during automatic performance of song data, the electronic musical instrument reads out the style data in accordance with the specification and performs automatic performance of accompaniment.

In FIG. 1, a CPU 10, which is a control unit, is connected to a ROM 11, a RAM 12, a floppy disk drive 13, a MIDI interface 14, a timer 15, a keyboard detection circuit 16, a switch detection circuit 18,
A display circuit 20 and a sound source circuit 21 are connected. ROM
Reference numeral 11 denotes a program memory storing a control program for controlling the operation of the electronic musical instrument, and a style data memory storing the above-described style data and a substitute table to be described later. In the RAM 12, automatic performance data is read from a floppy disk, and a register for temporarily storing various data generated during the performance is set. A floppy disk storing song data and the like is set in the floppy disk drive 13.
Another MIDI device is connected to the MIDI interface 14, and MIDI data and style data for specifying automatic performance MIDI data and style data input from the other MIDI device are connected.
Receive data etc. The timer 15 is a circuit for interrupting the CPU 10 at regular intervals, and the interval between the interrupts is determined by tempo data included in song data and style data.

A keyboard 17 is connected to the keyboard detection circuit 16. The keyboard 17 has a range of about 5 octaves, and includes a key-on switch for detecting on / off of each key and a sensor for detecting initial touch strength and after-touch strength of each key. The on / off of these key-on switches and the detection values of the sensors are read by the CPU 10 via the keyboard detection circuit 16. Various switch groups 19 are connected to the switch detection circuit 18.
The switch group 19 includes, for example, a mode selection switch for selecting a mode such as a play mode (a mode in which a player operates the keyboard 17 by himself / herself) and an automatic performance mode (a mode in which song data is read and played automatically). A tone color selection switch for selecting a tone color in the play mode is provided. The on / off state of these switches is detected by a switch detection circuit 18, and the detected contents are
Read by. The display circuit 20 displays the name of the currently selected timbre and the name of the music being played during automatic performance. The tone generator 21 generates a tone signal based on sound data input from the CPU 10. The sound source circuit 21 can generate a rhythm sound having no pitch, in addition to a musical tone such as a stringed percussion instrument capable of playing a melody or a chord having a pitch. CPU for generating musical tones with intervals
The tone generation data input from 10 to the tone generator 21 is a note-on signal, pitch designation data, channel designation data, and the like. Also, in order to generate a musical tone without a pitch, CP
The tone generation data input from the U10 to the tone generator 21 is a note-on signal, rhythm tone designation data, channel designation data, and the like. This tone signal is sound system 2
2 is input. The sound system 22 applies various effects to the musical tone signal, and then amplifies and outputs the amplified signal to a speaker or the like.

FIG. 2A is a diagram showing a schematic configuration of song data stored in the floppy disk or the like. A header portion is formed at the head of the song data. The header section contains data such as the title of the song data, the playing time, the playing tempo, the timbres of the channels 1 to 16, the date of announcement of the song data, country information indicating the country of production, and the song. Genre, song time signature, beat, main instrument type responsible for melody, gender of song singer, song composer, lyricist, arranger, performer or singer / group name, song data creator, etc. Data has been written. Note that the name indicates the type of genre music of the song, and includes rock, pop, jazz, latin, and the like. The time signature indicates the number of beats in one bar, and is generally three or four. The beat is the number of times the rhythm is hit in one bar, and in the case of a four-beat song, four beats, eight beats, sixteen beats and the like are generally used. Also,
Shuffle, swing, etc. are also a kind of beat. The main instrument type responsible for the melody is data indicating the instrument tone for playing the melody part.
It is used to search for a song by specifying an instrument, such as a guitar song. The gender of the singer who sings the song is data such as male solo, female solo, male and female duet, multiple male, multiple female, no song, etc. When using song data for karaoke accompaniment, etc. Search becomes possible.

As described above, the main body of the sequence data has a structure in which the delta time data and the event data are written alternately. The delta time data is data indicating a time interval between event data immediately before the delta time data and event data immediately after the delta time data, and its length is expressed by the number of clocks of the timer 15. The event data includes note events (note on / note off), volume events, pitch bend events, and other performance events, chord (chord) designation events, bank number designation events, style number designation events,
It consists of style specification events such as section number specification events. When a note event or another performance event is read, the event data is transmitted to an operation unit such as the tone generator 21. The tone generator 21 controls a tone signal forming operation based on the input data. When the code designation event data is read,
Route data and type data included in the code designation data are stored in registers ROOT and TYPE, respectively. The chord designation data is used as a reference for determining a chord tone and for shifting the pitch of a bass tone during automatic performance of style data.

Here, the style data memory is composed of a plurality of banks, and a plurality of (1 to 100 in FIG. 3) style data is stored in each bank as shown in FIGS. I have. Therefore, by specifying the bank number and style number, 1
Style data can be specified. Also, since each style data is composed of four section data, when actually performing, by specifying a section number in addition to a bank number and a style number, one sequence data used for automatic performance of accompaniment is designated. Can be specified.

In FIG. 3B, the style data is composed of header and four section data of main, fill-in, intro, and ending. In the header, data indicating the type of the style data such as the name, genre, time signature, and beat of the style data are written. The genre is a name indicating the type of music, and includes rock, pop, jazz, and Latin. The time signature indicates the number of beats in one bar.
A quadruple is common. The beat is the number of times the rhythm is hit in one bar, and in the case of a four-beat music, four beats, eight beats, sixteen beats and the like are generally used. Among style data, style data having the same genre, similarity, and the same beat can be said to be similar style data.

Each section data is composed of accompaniment patterns for several measures. The accompaniment pattern is sequence data, as shown on the right side of the figure, and data for generating a rhythm sound, a bass sound, and a chord sound is written as event data. All bass and chord sounds are CM
Since the chord of 7 (the major seventh chord in C major) is described at the pitch at the time of designation, it was corrected and shifted based on the ROOT and TYPE specified at the time of actual sounding. The data is transmitted to the tone generator 21. The main section data is style data used for normal accompaniment during performance of the music. The fill-in section data is data that is inserted into the main section data at the end of a song phrase. Intro data is style data that is played at the beginning of a song. Ending data is style data that is played at the end of a song. Of these, the main style data is repeatedly played many times, so that the end of the data is easily connected to the beginning. The section number of each section data is main data: 1, fill-in data: 2, intro data: 3, and ending data: 4.

FIG. 3 shows the correspondence between style data and style numbers in the style data memory. This figure shows only bank 1. The style data is stored in an automatic musical instrument or an electronic musical instrument having an automatic performance function, but not all of the style data shown in FIG. There are many. However, even in this case, the correspondence between the content (name) of the style data and the style number is the same as in this figure, and if the bank number and style number are the same, any automatic performance device or electronic musical instrument having an automatic performance function However, the same style data is specified.

Each style data is stored for each genre. Dance, Ballad, Rock &
Pop, Rhythm & Blues, Hard Rock, Rock & Roll, Jazz,
Latin, Reggae, and World are genre names. Among them, for example, Rock & Pop, Hard Rock, Rock & Roll are similar to each other, Rhythm & Blues and Rock & Roll are similar to each other, and Latin and Reggae are similar to each other.

FIG. 4 is a diagram showing the structure of the substitute table stored in the style data memory. When the style data not stored in the style data memory is specified, the substitute table stores style data (substitute style) used for accompaniment instead of the style data (specified style). . Note that both the designated style and the substitute style are stored as a bank number and a style number. As the substitute style, a style having the same or similar genre and the same beat, and more preferably the same beat is selected. The substitute style always specifies the style data stored in the style data memory, so the substitute style storage area may be one. However, in this embodiment, a plurality of substitute styles are stored in order to change the performance. ing. The actually used substitute style may be selected at random from these, or may be selected in consideration of the compatibility with the style data played immediately before.

As described above, in this embodiment, the substitute table is stored in the style data memory in advance. However, the substitute table may be provided from a floppy disk together with the song data. May be provided from a device such as a MIDI interface. When a substitute table is given from the outside, it is unknown which style data is built in the electronic musical instrument. Therefore, substitute styles for all style data (designated styles) are described, and each designated style is specified. A substitution table in which a plurality of substitution styles are described. When the electronic musical instrument specifies style data that is not stored in the style data memory, the electronic musical instrument selects the style data that is described in the highest priority of the substitute table among the style data that is stored in the electronic musical instrument.

The automatic performance operation of the electronic musical instrument will be described with reference to FIGS. The operation in the play mode (a mode in which a player plays by operating the keyboard 17) is well known in the related art, and a description thereof will be omitted.

FIG. 5 is a flowchart showing the sequence reproduction operation. This operation is an operation executed by interruption of the timer 15 which is performed at regular intervals after the automatic performance operation of the song data is started. The song data is read from the floppy disk to the song data file in the RAM 12 at the start of the automatic performance. First, it is determined whether or not the down count register TIME1 is 0. This down count register TIME1
Is a register that reads the value of the delta time data of the song data and counts down each time the timer interrupts. If TIME1 is not 0, it is not the timing to read the next sequence data yet, so 1 is subtracted from TIME1 (n2) and the routine returns.

If TIME1 = 0 at n1,
Since it is the read timing of the next sequence data, the operation proceeds to the operation of n3 or less. In n3, the next sequence data is read from the song data file in the RAM 12, and it is determined whether the data is delta time data or event data (n4). If the data is event data, an event handling process shown in FIGS. 6 and 7 is executed (n5). After execution, the process returns to n3. In the case of delta time data, the data is set in TIME1 (n
6) It is determined whether or not the data is 0 time data (n7). If it is 0 time data, the process returns to n3 to continuously read event data. If the data is not 0 time data, 1 is set from TIME1 after the judgment of n7.
Is subtracted (n2) and the process returns.

FIGS. 6 and 7 are flow charts showing the event handling process in the above n5. This event handling process includes a process corresponding to all event data read from the song data.

FIG. 6A shows the operation when note event data is read. When the note event data is read, it is determined whether the data is note-on event data or note-off event data (n10). In the case of note-on event data, channel number, note number, velocity data, and the like included in the note-on event data are transmitted to the tone generator 21 to execute sound generation processing (n11). On the other hand, if the data is note-off event data, the mute data of the corresponding sounding channel is transmitted to the tone generator 21 to execute mute processing (n12).

FIG. 9B is a flowchart showing other performance event processing. Other performance events are, for example, pitch bend data, volume adjustment events, tempo change events, and the like. When such performance event data is read out, the data is output to a corresponding operation unit such as the tone generator 21 and the timer 15 (n
13).

FIG. 9C is a flowchart showing processing when end data is read. When the end data is read out, the stop of the sound generation is instructed to all the sound source channels which are sounding by this automatic performance, and the timer interruption processing of FIG. 5 and FIG. (N14). Thereby, all the musical tones based on the song data and the style data are silenced, and the automatic performance ends.

FIG. 4D is a flowchart showing the processing when code data is read. Code data consists of route data and type data,
The route data is set in the ROOT register,
Set the type data in the TYPE register (n1
5). ROOT and TYPE are reset at the start of the automatic performance.

FIG. 7 shows an operation when event data designating style data is read. FIG. 9A shows an operation when a bank number is designated by a bank number designation event. When the bank number is designated, this bank number is set in the new bank number register NBANK (n20) and the routine returns.
The new bank number NBANK is set as a designated bank number BANK when a style number is newly designated next time.

FIG. 11B is a flowchart showing the operation when the style number is designated by the style number designation event. When the style number is specified,
The new style number register NST
Set to YLE (n21). Next, it is determined whether or not the style data specified by the new style number NSTYLE and the bank number NBANK is stored in the style data memory (n22). If the corresponding style data is stored, the new style number N
The STYLE and the new bank number NBANK are set in the designated style number register STYLE and the designated bank number register BANK (n23), and the STY is set.
Automatic performance of accompaniment by the section data specified by the section number SECTION in the style data specified by LE and BANK is started (n24). That is, the section data read pointer is set in accordance with the current progress of the automatic performance, and the number of clocks until the next sequence data read timing is set in the style data down count register TIME2. After that, return.

On the other hand, if the style data specified by NSTYLE and NBANK is not stored in the style data memory, style substitution processing (n25) is executed. Details of the style substitution processing will be described later.

FIG. 9C is a flowchart showing an operation when a section number is designated by a section number designation event. When the section number is designated, this section number is set in the section number register SECTION (n26), and STYLE,
Automatic performance of accompaniment is started by the section data specified by the section number SECTION of the style data specified by BANK (n27). That is, the section data read pointer is set in accordance with the current progress of the automatic performance, and the number of clocks until the next sequence data read timing is set in the style data down count register TIME2. It returns after this.

FIG. 8 is a flowchart showing the style substitution processing. The style data designated by NSTYLE and NBANK is used as the designated style, and the substitute table (see FIG. 4) is referred to to search for a substitute style from the style data memory (n30). When a substitute style is found in the substitute table, n31 to n32
Proceed to. In n31, when there is no record relating to the specified style, and when style data of the substitute style is not stored in this style data memory, N31 is set.
Judges as O and returns as it is. In this case, S
FIG. 7 without rewriting both TYLE and BANK
The process exits from the style number designation event corresponding process (B), and the performance continues in the style up to that point.

In n32, the bank number and the style number of the substitute style extracted from the search result are set to BA.
Write to NK, STYLE (n32), STYLE,
Automatic performance of accompaniment is started by the section data specified by the section number SECTION of the style data specified by BANK (n33). That is, the section data read pointer is set in accordance with the current progress of the automatic performance, and the number of clocks until the next sequence data read timing is set in the style data down count register TIME2. It returns after this. When a plurality of substitute styles can be selected in the search of the substitute table, the one with the highest priority may be selected or a random one may be selected.

FIG. 9 is a flowchart showing the style reproduction process. This operation is executed at the same timer interruption in parallel with the song data sequence reproduction operation (FIG. 5). First, the down count register TIME
It is determined whether or not 2 is 0 (n41). The down count register TIME2 is a register that reads the value of the delta time data from the section data and counts down every time the timer interrupts. TIME2
Is not 0, it is not the timing to read the next sequence data, so 1 is subtracted from TIME2 (n
42), and return.

If TIME2 = 0 in n41, it is the next sequence data read timing, so the operation proceeds to n43 and below. In n43, the next sequence data is read from the corresponding section data, and it is determined whether the data is delta time data or event data (n44). If the data is event data, an event handling process shown in FIG. 10 is executed (n45). After execution, the process returns to n43. In the case of delta time data, the data is set in TIME2 (n
46), it is determined whether or not the data is 0 time data (n47). If it is 0 time data, the process returns to n43 to continuously read out event data. If it is not 0 time data, TIM
Subtract 1 from E2 (n42) and return.

FIG. 10A shows the operation when note event data is read. When the note event data is read, it is determined whether the data is note-on event data or note-off event data (n50). In the case of note-on event data, it is determined whether the note-on event data is rhythm part data or non-rhythm part data (n51). This determination is made based on the channel number included in the note event data. In the case of the rhythm part, the channel number, note number (data indicating the type of rhythm sound), velocity data, and the like included in the note-on event data are generated by the tone generator 21.
To perform a sound generation process (n53). On the other hand, in the case of the non-rhythm part data, the pitch is corrected in accordance with the code (ROOT, TYPE) specified at that time (n52), and the channel number, note number, velocity data, etc. are transmitted to the tone generator circuit. Then, the sound generation processing is performed (n53). If the data is note-off event data, the mute data of the corresponding sounding channel is transmitted to the tone generator 21 to execute mute processing (n54).

FIG. 9B is a flowchart showing other performance event processing. Other performance events are, for example, pitch bend data, volume adjustment events, tempo change events, and the like. When such performance event data is read out, the data is output to a corresponding operation unit such as the tone generator 21 and the timer 15 (n
56).

FIG. 9C is a flowchart showing the processing when the end data is read. In the section data, the end data means the end of the section data, not the end of the performance. Therefore, when the end data is read, it is necessary to move the read pointer to the head of the section data and repeatedly read the section data. (N57).

According to the above operation, when the style data designated by the song data is not stored in the electronic musical instrument, substitute style data is selected based on the substitute table, and accompaniment of the accompaniment is selected based on the style data. Automatic performance is performed. In this embodiment, the substitute table (FIG. 4) is described in units of style data, and the style substitute process (FIG. 8) is executed when a style number is designated. Each time section data not specified and stored is designated, another section data most similar to the section data may be substituted. Further, the substitution table may be rewritten and added by the user.

Here, as a method of selecting a substitute style, various methods other than the method shown in the substitute table of FIG. 4 and the style substitute processing of FIG. 8 can be adopted. FIGS. 11 and 12 show the second and third alternative style selection operations.
3 shows a third embodiment.

FIG. 11 is a flowchart showing a second embodiment of the style substitution process. In this embodiment, style data similar to the style data (designated style) designated by NBANK and NSTYLE is selected from the style data memory without using the substitute table, and is used as the substitute style. The similarity of the style data is determined based on the genre, beat, and beat. In the case of the style data stored in the style data memory, the genre, time signature, and beat are written in the header of the style data, but the genre, time signature, and beat of the style data specified from the song data are recognized in some way. Shall be performed. For example,
The method of writing these data in the style number specification event of the song data, the genre of all style data regardless of whether the data itself is stored,
There is a method of storing beats and beats in a style data memory.

First, style data of the same genre as the designated style is searched from the style data memory (n
60). When style data of the same genre is searched (n61), style data having the same time signature as the designated style is searched from the searched style data (n64). If there is data of the same beat by this search, it is searched from the searched style data whether or not there is style data of the same beat (n66). If there is style data of the same beat, the style data is selected as substitute style data (n67, n68). When there are a plurality of corresponding style data, one of them is selected (n68). On the other hand, when there is no style data of the same beat, n64
One of the style data of the same beat searched in the above is selected randomly or in accordance with a predetermined rule as substitute style data (n69). The bank number and style number of the substitute style data selected by the above operation are set to BANK and STYLE (n70). Thereafter, the automatic performance of the accompaniment is started by the section data specified by the section number SECTION in the style data specified by STYLE, BANK, and the process returns (n71). That is, the section data read pointer is set in accordance with the current progress of the automatic performance, and the number of clocks until the next sequence data read timing is set in the style data down count register TIME2. As described above, in this embodiment, a substitute style is searched based on data representing the type of style data without having a substitute table.

On the other hand, if there is no style data of the same genre as the designated style in n61, it is searched whether or not there is style data of a similar genre (n62).
N6 if there is style data of a similar genre
From 3 returns to n64. If there is no style data of a similar genre, it is determined that there is no substitute style data, and the process returns. Also, even if style data of the same or similar genre is searched, if the same beat cannot be searched for, style data is determined to be unusable and the process returns as it is in n65. Therefore, the performance in the style up to that time will be continued.

FIG. 12 is a diagram showing a third embodiment of the style substitution process. FIG. 2A is a diagram showing a style data memory used in the embodiment. In this embodiment, style data is classified by genre, time signature, and beat, and style data having the same genre, time signature, and beat are all stored under the same style number. Bank 0 stores the most basic style data among the style data having the same genre, time signature, and beat, and stores the style data having the same style number as the variation in the banks 1 to 255. I have to. Therefore, when there is no designated style, by selecting style data of the same style number but different bank number as a substitute style, similar suitable style data can be selected. The style numbers 238 to 255 are storage areas for style data that cannot be substituted. That is, style data in this range cannot be substituted between banks even with the same style number. The style data that cannot be substituted for other style data is, for example, user data created by the user or data of special folk music.

FIG. 9B is a flowchart showing the style substitution processing. First, when there is no designated style designated by NBANK, NSTYLE, it is determined whether or not the style number NSTYLE is a number in a substitutable range (n80). If the number is within the substitutable range, another bank number is searched to determine whether style data of the same style number is stored (n81). If the corresponding style data is searched, the most suitable one is selected (n82), and the bank number is set to BANK.
And NSTYLE is set to STYLE (n83). After this, this STYLE, BAN
Section number S in style data specified by K
Automatic performance of accompaniment by section data specified by ECTION is started (n84), and the routine returns. That is, the section data read pointer is set in accordance with the current progress of the automatic performance, and the number of clocks until the next sequence data read timing is set in the style data down count register TIME2.

Accordingly, similar style data can be selected only by switching the bank number. In n83, the bank number BANK may be forcibly set to 0. In this case, if there is no variation style, the processing style is to substitute the basic style. In this embodiment, style data is classified by genre, beat, and beat, and only the same data is stored in the same style number.
Style data may be classified by genre and time signature, and the same data may be stored in the same style number, and furthermore, the bank number may be used to identify the beat of the style data. Also, in this embodiment, when adding a style data memory,
An extension is made so that the relationship between the style number and the contents of the style data is the same as the data up to that time. That is, the contents of the memory are configured so that the same style data of the same or similar genre has the same style number.

In the above embodiment, if the contents of the style data and the style number corresponding to the style data or the style number and the bank number are unified among a plurality of models, the same song data is reproduced on different models. Even in such a case, it is possible to reproduce a song having a similar atmosphere.

In the above embodiment, the event data for designating style data is written in the song data. However, the present invention can also be applied to a configuration in which style data is designated from an external device.

In the above embodiment, the style data is not substituted unless the genre is the same or similar. In the worst case, the style data is substituted if the genre is the same and the beat is the same even if the genre is not similar. You may make it.

Further, in the above-described embodiment, when data designating style data such as a style number is read at the time of reproducing the song data, it is determined whether or not the style data is stored and stored. When there is no style data, substitute style data is determined.Before starting playback of the song data, all style data selected in the song is extracted, and the style data is stored in advance for all the style data. After the determination as to whether the song data has been played and the selection of the substitute style, the reproduction of the song data may be started.

Next, another embodiment of the present invention will be described. FIG. 13 is a flowchart showing the preferred style search processing. In this preferred style search process,
Based on the genre, time signature, and beat information of the song stored in the header portion of the song data, style data suitable for being reproduced in parallel with the reproduction of the song is searched. That is, in this embodiment, instead of the style data specified by the style specification data stored in the song data, another style can be reproduced in parallel with the song. At this time, the genre, time signature, and beat stored in the header of the song data are referred to, a style that matches or is similar to the genre is searched, and the style is selected from the styles. This makes it possible to perform well. Even if style designating data is not stored in the song data, style data suitable for the song can be selected.

First, at step n91, the header of the song data is read to obtain information on the genre, time signature and beat of the song. At n92, the header of each style data stored in the style memory is read, and all styles that match or are similar to the genre, time signature, and beat of the song are searched. Then, in n93, all the searched style data are listed on the display circuit 20. The list display is performed, for example, by displaying a list of style bank numbers, style numbers, style names, genres, beats, beats, and the like. Thereafter, the user selects an arbitrary style from the displayed suitable style list, and plays the selected style in parallel with the song.

It should be noted that any one of the searched plurality of style data may be randomly selected and reproduced together with the song data.

FIG. 14 is a flowchart showing the song search process. In this song search processing, song genre, time signature, and beat information stored in the header portion of the song data are used as search conditions to search for song data that matches the search conditions. In other words, song data suitable for the user can be retrieved from a large number of stored song data by specifying the genre, time signature, and beat of the song.

At n101, at least one of the genre, beat, and beat of the song to be searched is specified as a search condition. For example, when specifying a plurality of conditions A and B, A
A search condition is specified, such as AND B or A OR B.
At n102, the header of the song data stored in the floppy disk is read, and a song that matches or is similar to the genre, time signature, and beat specified as the search condition is searched. Then, a list of all the song data retrieved in n103 is displayed on the display circuit 20. Note that information other than the genre, time signature, and beat, such as a composer, a lyricist, and a singer, may also be specified as search conditions.

Although the information such as the genre, time signature, and beat of the song is stored in the header portion of the song data, the storage format is not limited to this format. For example,
When the song data is stored in the standard MIDI file format, such information may be stored as a meta event during a track chunk, or these information may be stored in a chunk different from the track chunk. . Alternatively, the information may be stored in a file different from the file in which the song data is stored, and the song data may be associated with the information by matching the file name or the like with the song data file.

In addition to searching for song data, information on genre, beat, and beat may be used for searching for style data.

[0072]

As described above, according to the present invention, when performance data which is not stored in the performance data storage means is designated, the automatic performance means is executed by substituting an appropriate one. Even if the specified performance data does not exist, there is no case where the automatic performance becomes impossible at all.

In this case, the performance data to be substituted (substitution data) is stored in a substitution table, or similar performance data having a fixed relationship with the performance data specified by the performance data storage means is substituted for the substitution data. By extracting similar data and grouping and storing similar performance data and selecting the substitute data from among them, the substitute data can be selected more accurately, and the automatic performance with an atmosphere similar to the original song Becomes possible.

According to the present invention, the second performance data is searched based on the information representing the characteristics stored in the first performance data. Therefore, the first performance data and the second performance data are retrieved. Are reproduced in parallel, a musically preferable performance can be performed.

[0075]

[Brief description of the drawings]

FIG. 1 is a block diagram of an electronic musical instrument having an automatic performance function according to an embodiment of the present invention.

FIG. 2 is a diagram showing a data format of song data and style data of the electronic musical instrument.

FIG. 3 is a diagram showing a configuration of a style data memory of the electronic musical instrument.

FIG. 4 is a diagram showing a configuration of a substitute table of the electronic musical instrument.

FIG. 5 is a flowchart showing the operation of the electronic musical instrument (sequence reproduction processing).

FIG. 6 is a flowchart showing the operation of the electronic musical instrument (event handling processing).

FIG. 7 is a flowchart showing the operation of the electronic musical instrument (event handling processing).

FIG. 8 is a flowchart showing the operation of the electronic musical instrument (style substitution processing).

FIG. 9 is a flowchart showing the operation of the electronic musical instrument (style reproduction processing).

FIG. 10 is a flowchart showing the operation of the electronic musical instrument (event handling processing).

FIG. 11 is a diagram showing a second embodiment of a style substitution process.

FIG. 12 is a diagram showing a third embodiment of a style substitution process.

FIG. 13 is a flowchart showing the operation of the electronic musical instrument according to still another embodiment.

FIG. 14 is a flowchart showing the operation of the electronic musical instrument according to still another embodiment.

Continuation of the front page (56) References JP-A-7-210183 (JP, A) JP-A-4-11288 (JP, A) JP-A-2-39196 (JP, A) JP-A-4-390199 (JP) JP-A-4-242794 (JP, A) U.S. Pat. No. 5,963,634 (US, A) European Patent Application Publication 715295 (EP, A1) (58) Fields investigated (Int. Cl. ⁶ , DB name) G10H 1/00 101 G10H 1/00 102 G10H 1/36 G10K 15/04 302

Claims (6)

(57) [Claims] 1. Performance data storage means for storing a plurality of types of performance data as sequence data of automatic performance, performance data designating means for designating performance data to be automatically played,
An automatic performance means for reading specified performance data from the performance data storage means and executing an automatic performance, wherein the performance data designating means comprises a performance not stored in the performance data storage means. When data is specified, at least the music genre stored in the performance data storage means is
An automatic performance device comprising substitute means for executing said automatic performance means by substituting the same or similar other performance data. 2. A performance which is sequence data of an automatic performance.
Performance data storage means for storing multiple types of data;
Performance data designating means for designating performance data to be played;
The designated performance data is read from the performance data storage means.
Automatic performance means for executing automatic performance
A dynamic performance device, wherein the performance data designating means records the performance data storage means.
If you specify performance data that is not remembered,
At least the time signatures stored in the
Substitutes other similar performance data for the automatic performance means.
An automatic performance device comprising a substitute means for executing 3. A performance which is sequence data of an automatic performance.
Performance data storage means for storing multiple types of data;
Performance data designating means for designating performance data to be played;
The designated performance data is read from the performance data storage means.
Automatic performance means for executing automatic performance
A dynamic performance device, wherein the performance data designating means records the performance data storage means.
If you specify performance data that is not remembered,
At least the beats stored in the
Or by using other performance data similar to
An automatic performance device comprising substitute means for executing a step . 4. The substitute performance means according to claim 1 , wherein
Table that stores performance data to be substituted for data
And performance data not stored in the performance data storage means.
When the data is specified, the substitute table is searched and substituted.
And means for determining the performance data to be played.
The automatic performance device according to claim 2 or 3 . 5. A performance which is sequence data of an automatic performance.
Store multiple types of data, at least music genre, beat
One or more of the children and beats are the same or similar
Performance data into the same group
Different first designation information to each group
Show variations for each of multiple performance data
Performance data storage means to which second specification information is attached, and performance data specification means for specifying performance data to be automatically performed
Read the specified performance data from the performance data storage means.
The automatic performance means for executing the automatic performance and the performance data designating means are recorded in the performance data storage means.
When performance data that is not remembered is specified,
Performance data and the first designated information are the same and the second designated
Substitute to select performance data with different information as substitute data
And data selection means, before using the performance data surrogate for data selection means has selected
Automatic performance apparatus characterized by comprising a, a substitute means for executing serial automatic performance means. 6. A characteristic of the stored automatic performance data.
The first automatic performance data including the characteristic data is stored.
Storage means for storing characteristics of the stored automatic performance data;
A plurality of second automatic performance data including the signature data are stored.
2 storage means, and feature data included in the first automatic performance data.
Data that has feature data that matches or is similar to the
Search means for searching for dynamic performance data, and first automatic performance data;
Data and the retrieved second automatic performance data are played back in parallel.
An automatic performance device comprising: