JPH08211865A - Automatic playing device - Google Patents

Abstract

PURPOSE: To provide an automatic playing device in which other similar styles can be substituted for a specified accompaniment even in the case the specified accompaniment is not present. CONSTITUTION: Plural accompaniment style data are stored in a style data memory by being added with style numbers unified to other models. On the other hand, which style data among style data stored in the style data memory are to be substituted for the specified style data when the style data having a style number which is not stored in the style data memory are specified is stored in a substitution table. When automatic playing data specifies style data, whether the style data stored in the style data memory or not is searched and in the case the data are stored, the automatic playing of an accompaniment is executed by reading out the style data and in the case the data are not stored, style data to be substituted are read out by retrieving the substitution table and then the automatic playing of the accompaniment is executed with the style data.

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art A conventional automatic performance apparatus assigns a number to a plurality of automatic performance style data, reads out accompaniment pattern data designated by a style number, and performs automatic performance.

An automatic performance device in which a plurality of types of accompaniment patterns used during automatic performance are stored in the main body has been put into practical use. The song data used in such an automatic performance device consists of 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 automatically played.

[0004]

In such an automatic performance apparatus, when performing automatic performance with song data created by another automatic performance apparatus, an accompaniment pattern that is not stored in the song data is designated. May contain specified data. 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 does not have a function of selecting another accompaniment pattern, and thus cannot automatically perform the accompaniment.

Further, in the case of song data which does not include designated data of an accompaniment pattern, arbitrary accompaniment pattern data can be combined and reproduced at the same time. There was a possibility that automatic performance would not work well.

Further, when the song data to be automatically played is not specified, the song data is searched and the accompaniment pattern is further searched. Conventionally, the name or number of the song data or the accompaniment pattern data is designated. Since the user has selected the song data and the accompaniment pattern data, the user cannot select the song data or the accompaniment pattern data unless the user knows what kind of symmetry should be selected.

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

[0008]

According to the invention of claim 1 of this application, performance data storage means for storing a plurality of types of performance data which are sequence data for automatic performance, and performance data designation for specifying performance data to be automatically performed. An automatic performance device comprising means and 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 is stored in the performance data storage means. When the performance data which is not stored is designated, another performance data stored in the performance data storage means is used as a substitute to execute the automatic performance means.

According to the invention of claim 2 of this application, a substitute table storing performance data to be substituted for the designated performance data by the substitute means, and performance data not stored in the performance data storage means are provided. When designated, the substitute table is searched and the performance data to be substituted is calculated.

According to the invention of claim 3 of this application, when performance data not stored in the performance data storage means is designated as the substitute means, the performance data storage means is searched to perform the designated performance. It is characterized in that the performance data having a fixed relationship with the data is extracted as performance data to be substituted.

According to the invention of claim 4 of this application, the performance data storage means is grouped for each performance data having a certain relationship, and the first designation information is added to each group and stored. In the above, each performance data is individually stored with the second designation information stored therein, and the substitute means is designated when performance data not stored in the performance data storage means is designated. Performance data and first
Of the same designation information but different second designation information is extracted as performance data to be substituted.

The invention of claim 5 of this application is characterized in that the performance data having at least the same or similar music genre as the specified performance data is the performance data having the fixed relationship.

The invention of claim 6 of this application is characterized in that performance data having at least the same time signature as the specified performance data is the performance data having the fixed relationship.

The invention of claim 7 of this application is characterized in that the performance data having the same beat as the designated performance data is used as the performance data having the fixed relationship.

According to the invention of claim 8 of this application, the first storage means for storing the first automatic performance data including the characteristic data representing the characteristics of the stored automatic performance data, and the characteristics of the stored automatic performance data. And a second storage means for storing a plurality of second automatic performance data including characteristic data representing the second automatic performance data, and a second automatic performance data having characteristic data matching or similar to the characteristic data included in the first automatic performance data. It is characterized in that it comprises a searching means and a reproducing means for reproducing the first automatic performance data and the searched second automatic performance data in parallel.

The invention of claim 9 of this application is a storage means for storing a plurality of automatic performance data including data representing at least one of the stored genre, time signature and beat of the automatic performance data, and genre, time signature and beat. Specifying means for specifying at least one of the above, and a searching means for searching automatic performance data that matches or is similar to the search condition, using at least one of the genre, time signature, and beat specified by the specifying means as the search condition. It is characterized by having.

In the automatic performance apparatus of the present invention, a plurality of performance data is 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 the automatic performance. . In this case, when the performance data designating means designates performance data that is not stored in the performance data storage means, an appropriate performance is automatically substituted from the performance data stored in the performance data storage means. To execute. As a result, even if there is no designated performance data, the performance cannot be stopped.

As a method of selecting the substitute performance data, the substitute performance data is stored in the substitute table, and when the performance data not stored in the performance data storage means is designated, the substitute table is searched to substitute the performance data. A method for determining the performance data to be played, or when performance data that is not stored in the performance data storage means is specified, the performance data storage means is searched to have the same genre, similarity, and time signature as the specified performance data. There is a method of extracting performance data having a certain relationship such as the same beat as performance data to be substituted. By doing so, even if other performance data is substituted, it becomes possible to perform an automatic performance in a similar atmosphere.

Further, in the performance data storage means, performance data having a certain relationship such as the same genre, similarities, same beats, and same beats may be grouped and stored in advance. In this case, when performance data that is not stored in the performance data storage means is designated, other performance data of the group to which the designated performance data belongs should be extracted as substitute data so that an automatic performance with a similar atmosphere is created. It will be possible.

Further, the automatic performance device of the present invention stores automatic performance data including characteristic data in each of the first storage means and the second storage means. Then, the 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 retrieved automatic performance data in the second storage means is reproduced in parallel. As a result, it is possible to perform a musical performance in which the automatic performance data stored in the first storage means and the automatic performance data stored in the second storage means are musically matched.

Further, the automatic performance device of the present invention has information indicating at least one of the genre, time signature, and beat of performance in the automatic performance data, and at least one of genre, time signature, and beat is used as a search condition. By specifying one, the automatic performance data that matches or is similar to the search condition is searched. As a result, the automatic performance data that the user wants to select can be specified by vague conditions such as genre, time signature, and beat, and the degree of freedom of selection can be expanded.

[0022]

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 equipped with a keyboard 17 so that the performer can play the musical piece by himself / herself to generate musical tones, but a floppy disk storing song data which is automatic performance data of a musical piece is set in the floppy disk drive 13, and It is also possible to play automatically 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 alternately stored as shown in FIG. The event data in the song data is composed of melody data that controls the pronunciation / silence of the melody and data that specifies style data that is accompaniment pattern data. The style data is stored in the ROM (style memory) of the electronic musical instrument. Style data is sequence data that stores accompaniment patterns in units of several measures. When the electronic musical instrument reads data that specifies style data during automatic performance of song data, the electronic musical instrument reads the style data according to the specification and executes the automatic performance of accompaniment.

In FIG. 1, a CPU 10, which is a control unit, is provided with 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, and a bus via a bus.
A display circuit 20 and a sound source circuit 21 are connected. ROM
Reference numeral 11 is composed of a program memory storing a control program for controlling the operation of the electronic musical instrument, a style data memory storing the above-mentioned style data and a substitute table described later. In the RAM 12, automatic performance data is read from the floppy disk and registers for temporarily storing various data generated during the performance are 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 for designating MIDI data and style data for automatic performance inputted from the other MIDI device.
Receive data etc. The timer 15 is a circuit for interrupting the CPU 10 at regular intervals, and the interrupt interval 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 tone range of about 5 octaves, and is equipped with 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 state 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 is, for example, a mode selection switch for selecting a mode such as a play mode (a mode in which a performer operates the keyboard 17 to perform) or an automatic performance mode (a mode in which song data is read and automatically performed), 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 the switch detection circuit 18, and the detected content is the CPU 10.
Read by The display circuit 20 displays the contents such as the name of the tone color currently selected and the name of the song being played during automatic performance. The tone generator circuit 21 generates a tone signal based on the tone generation data input from the CPU 10. The tone generator circuit 21 can generate musical tones such as orchestral percussion instruments that have a pitch and can play melody and chords, as well as rhythm sounds with no pitch. CPU to generate musical tones
The tone generation data input from 10 to the tone generator circuit 21 is a note-on signal, pitch designation data, channel designation data, and the like. Also, in order to generate a musical sound with no pitch, CP
The tone generation data input from the U10 to the tone generator circuit 21 is a note-on signal, rhythm tone designation data, channel designation data, and the like. This tone signal is sound system 2
Entered in 2. The sound system 22 gives various effects to this tone signal, amplifies it, and outputs it to a speaker or the like.

FIG. 2A is a diagram showing a schematic structure of song data stored in the floppy disk or the like. A header portion is formed at the beginning of the song data. In the header part, in addition to data such as the song name of this song data, the playing time, the playing tempo, and the timbre of each channel of 1 to 16, the date of announcement of this song data, country information indicating the country of production, song Genre, song beat, beat, main instrument type in charge of melody, gender of song singer, song composer, lyricist, arranger, performer or singer / group name, song data creator, etc. Data has been written. The genre of the song is a name indicating the type of music, and includes rock, pops, jazz, Latin, and the like. In addition, the time signature indicates the number of beats in one bar, and is generally three, four, or the like. Further, the beat is the number of times the rhythm is hit in one bar, and in the case of a 4-beat tune, 4 beats, 8 beats, 16 beats, etc. are common. Also,
Shuffle and swing are also types of beats. The main instrument type that is in charge of the melody is data indicating the tone color of the instrument that plays 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 singing the song is data such as male solo, female solo, male and female duet, multiple males, multiple females, no song, etc. When the song data is used for karaoke accompaniment, etc., the gender of the song is used. Search is 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 alternately written. The delta time data is data indicating a time interval between the event data immediately before the delta time data and the event data immediately after the delta time data, and its length is represented by the number of clocks of the timer 15. The event data includes note events (note on, note off), volume events, other performance events such as pitch bend events, chord (chord) specified events, bank number specified events, style number specified events,
It is composed of style specified events such as section number specified events. When a note event or another performance event is read, the event data is transmitted to the operation unit such as the tone generator circuit 21. The tone generator circuit 21 controls the musical tone signal forming operation based on the input data. When the code specified event data is read,
The route data and the type data included in the code designation data are stored in the registers ROOT and TYPE, respectively. This chord designation data is used as a reference for determining chord notes and pitch shifting of bass notes during automatic performance of style data.

Here, the style data memory is composed of a plurality of banks, and each bank stores a plurality (1 to 100 in FIG. 3) of style data as shown in FIG. There is. Therefore, by specifying the bank number and style number, 1
One style data can be specified. Also, since each style data consists of four section data, when actually playing, by specifying the section number in addition to the bank number and style number, there is one sequence data used for automatic performance of accompaniment. Can be specified.

In FIG. 3B, the style data is composed of a header and four section data of main, fill-in, intro and ending. Data indicating the type of style data such as the name, genre, time signature, and beat of this style data is written in the header. The genre is a name indicating the type of music, and includes rock, pops, jazz, Latin, and the like. In addition, the time signature indicates the number of beats in one bar, and the time signature is 3,
4 beats etc. are common. The beat is the number of times the rhythm is hit in one measure, and in the case of a 4-beat tune, 4 beats, 8 beats, 16 beats, etc. are common. Among the style data, the style data having the same genre, the same style, and the same time signature can be referred to as similar style data.

Each section data is composed of an accompaniment pattern for several measures. The accompaniment pattern is sequence data as shown on the right side of the figure, and data for generating rhythm sounds, bass sounds, and chord sounds is written as event data. CM for all bass and chord sounds
Since the 7th chord (7th major chord in C major) is written as the pitch when it was specified, it was corrected / shifted based on the ROOT and TYPE specified at that time when actually pronouncing. The data is transmitted to the sound source circuit 21. The main section data is style data used for normal accompaniment during performance of a piece of music. Fill-in section data is data that is inserted into the main section data at the breaks in the phrase of a song. Intro data is style data that is played at the beginning of a song. The ending data is style data played at the end of the song. Of these, the main style data is played over and over again, so that the end and beginning of the data are easily connected. The section numbers of each section data are main data: 1, fill-in data: 2, intro data: 3, and ending data: 4.

FIG. 3 is a diagram showing correspondence between style data and style numbers in the style data memory. This figure shows only bank 1. Style data is stored in an electronic musical instrument or an electronic musical instrument having an automatic performance function, but not all of the style data shown in the figure is stored, but only a part of the style data is stored. There are many. However, even in that case, the correspondence between the content (name) of style data and the style number is the same as in this figure, and if the same bank number and style number are used, which automatic musical instrument and electronic musical instrument with an automatic musical instrument function is provided. But make sure that the same style data is specified.

Each style data is stored for each genre. Dance, Ballad, Rock & in this figure
Pop, Rhythm & Blues, Hard Rock, Rock & Roll, Jazz,
Latin, Reggae, World are genre names. Of these, for example, Rock & Pop, HardRock, 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 designated, the substitute table stores the style data (substitute style) used for accompaniment instead of the style data (designated style). . 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, the same time signature, and more preferably the same beat is selected. Since the substitute style always specifies the style data stored in the style data memory, the substitute style may have only one storage area, but in order to change the performance, a plurality of substitute styles should be stored in this embodiment. ing. The substitute style to be actually used may be randomly selected from these, or may be selected in consideration of compatibility with the style data that was 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 the floppy disk together with the song data, or other than the song data. May be provided from the device of FIG. When a substitute table is given from the outside, it is unclear what style data this electronic musical instrument has. Therefore, substitute styles for all style data (designated styles) are described, and each designated style is specified. A substitute table in which a plurality of substitute styles are described is used. In the electronic musical instrument, when style data that is not stored in the style data memory is designated, the style data stored in the style data memory is selected from the style data stored in the style data memory that has the highest priority in the substitute table.

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

FIG. 5 is a flow chart showing the sequence reproduction operation. This operation is an operation executed by the interruption of the timer 15 which is performed at regular intervals after the automatic performance of song data is started. The song data is read from the floppy disk into the song data file in the RAM 12 at the start of 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 for each timer interrupt operation. If TIME1 is not 0, it is not the read timing of the next sequence data yet, so 1 is subtracted from TIME1 (n2) and the process returns.

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

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

FIG. 6A shows the operation when the 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, the channel number, note number, velocity data, etc. included in this note-on event data are transmitted to the tone generator circuit 21 to execute sound generation processing (n11). On the other hand, if it is the note-off event data, the mute data of the corresponding sounding channel is transmitted to the sound source circuit 21 to execute the mute processing (n12).

FIG. 6B is a flow chart showing other performance event processing. Other performance events include, for example, pitch bend data, volume adjustment event, tempo change event, and the like. When such performance event data is read, the data is output to the corresponding operation unit such as the tone generator circuit 21 and the timer 15 (n
13).

FIG. 6C is a flowchart showing the processing when the end data is read. When the end data is read out, all the sound source channels which are sounding by this automatic performance are instructed to stop sounding, and the timer interrupt processing of FIG. 5 and FIG. (N14). As a result, all the musical tones based on the song data and style data are muted and the automatic performance ends.

FIG. 6D is a flowchart showing the processing when the code data is read. Code data consists of route data and type data,
Of these, set the route data in the ROOT register,
Set the type data in the TYPE register (n1
5). The ROOT and TYPE are reset at the start of the automatic performance.

FIG. 7 shows the operation when the event data designating the style data is read. FIG. 13A shows the operation when the bank number is designated by the 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 process returns.
This new bank number NBANK is set as the designated bank number BANK when the style number is newly designated next time.

FIG. 6B is a flow chart showing the operation when the style number is designated by the style number designation event. When the style number is specified,
This style number is the new style number register NST
Set to YLE (n21). Next, it is determined whether or not the style data designated 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
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 STY.
The automatic performance of the accompaniment by the section number designated by the section number SECTION in the style data designated by LE and BANK is started (n24). That is, the read pointer of the section data is set according to the progress of the current 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 this, return.

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

FIG. 6C is a flow chart showing the operation when the section number is designated by the section number designation event. When the section number is designated, this section number is set in the section number register SECTION (n26), and STYLE,
The automatic performance of the accompaniment by the section data designated by the section number SECTION of the style data designated by BANK is started (n27). That is, the read pointer of the section data is set according to the progress of the current automatic performance, and the number of clocks until the next sequence data read timing is set in the style data down count register TIME2. Then return.

FIG. 8 is a flow chart showing the style substitution process. By referring to the substitute table (see FIG. 4) with the style data designated by NSTYLE and NBANK as the designated style, the style data memory is searched for a substitutable style (n30). If you find a substitute style in the substitute table, n31 to n32
Proceed to. In this n31, if there is no record relating to the specified style and if the style data of the substitute style is not stored in this style data memory, N
Judge as O and return as it is. In this case, S
TYLE and BANK are not rewritten in FIG.
The processing corresponding to the style number designation event in (B) is to be skipped, and the performance is continued in the style so far.

At n32, the bank number and style number of the substitute style extracted by the search result are BA.
Write to NK, STYLE (n32), STYLE,
The automatic performance of the accompaniment by the section data designated by the section number SECTION of the style data designated by BANK is started (n33). That is, the read pointer of the section data is set according to the progress of the current automatic performance, and the number of clocks until the next sequence data read timing is set in the style data down count register TIME2. Then return. When a plurality of substitute styles can be selected in the substitute table search, the one having the highest priority may be selected or may be selected at random.

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

When TIME2 = 0 at n41, it is the read timing of the next sequence data, and therefore the operation proceeds to n43 and thereafter. At 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 it is event data, the event handling process shown in FIG. 10 is executed (n45). After execution, return to n43. In the case of delta time data, set that data in TIME2 (n
46), it is determined whether the data is 0 time data (n47). If it is 0 time data, the process returns to n43 to read event data continuously. If it is not 0 time data, after the judgment of n47, TIM
Subtract 1 from E2 (n42) and return.

FIG. 10A shows the operation when the 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 a rhythm part, the tone number circuit 21 includes the channel number, note number (data indicating the type of rhythm sound), velocity data, etc. included in the note-on event data.
To execute the pronunciation process (n53). On the other hand, in the case of non-rhythm part data, the pitch is corrected according to the chord (ROOT, TYPE) specified at that time (n52), and then the channel number, note number, velocity data, etc., of the tone generator circuit. 21 to execute sound generation processing (n53). If it is the note-off event data, the mute data of the corresponding sound generation channel is transmitted to the sound source circuit 21 to execute the mute processing (n54).

FIG. 6B is a flow chart showing other performance event processing. Other performance events include, for example, pitch bend data, volume adjustment event, tempo change event, and the like. When such performance event data is read, the data is output to the corresponding operation unit such as the tone generator circuit 21 and the timer 15 (n
56).

FIG. 6C is a flow chart showing the processing when the end data is read. In the section data, the end data does not mean the end of the performance but the end of the section data. Therefore, when the end data is read, the read pointer can be moved to the beginning of the section data and the section data can be read repeatedly. Allow (n57).

By the above operation, when the style data designated by the song data is not stored in this electronic musical instrument, the substitutable style data is selected based on the substitution table, and the accompaniment is performed based on the style data. Automatic performance is executed. In this embodiment, the substitution table (FIG. 4) is described in units of style data, and the style substitution process (FIG. 8) is executed when the style number is specified. It is also possible to substitute other section data that is most similar to that section data every time the section data that is not stored is specified. Further, the substitution table may be rewritable and added by the user.

Here, as a method for 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. The second and subsequent alternative style selection operations are shown in FIGS. 11 and 12.
A 3rd embodiment is shown.

FIG. 11 is a flow chart showing the second embodiment of the style substitution process. In this embodiment, instead of using the substitute table, style data similar to the style data (designated style) designated by NBANK and NSTYLE is selected from the style data memory and used as the substitute style. The similarity of style data is determined based on the genre, time signature, and beat. In the case of 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 also recognized by some method. Shall be done. For example,
Regardless of the method of writing these data in the style number specified event of the song data, and whether or not the data body is stored, the genre of all style data,
There is a method to store the time signature and beat in the 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 beat as the designated style is searched from the searched style data (n64). If there is data with the same beat as a result of this search, it is searched from the style data searched for whether there is style data with the same beat (n66). If there is style data of the same beat, that style data is selected as substitute style data (n67, n68). When there are a plurality of applicable style data, one of them is selected (n68). On the other hand, if there is no style data for the same beat, n64
One of the style data having the same time signature searched for is selected as the substitute style data at random or according to a predetermined rule (n69). The bank number and style number of the substitute style data selected by the above operation are set to BANK and STYLE (n70). After this, the automatic performance of the accompaniment by the section data designated by the section number SECTION in the style data designated by STYLE and BANK is started (n71) and the process returns. That is, the read pointer of the section data is set according to the progress of the current 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 table is not provided and the substitute style is searched based on the data representing the type of style data.

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).
If there is style data of a similar genre, n6
Return from 3 to n64. If there is no style data of a similar genre, there is no substitute style data, and the process returns as it is. Further, even if style data of the same or similar genre is searched, if the one having the same time signature cannot be searched, it is determined that the substitute cannot be performed, and the process returns as it is at n65. Therefore, the performance in the style so far continues.

FIG. 12 is a diagram showing a third embodiment of the style substitution processing. FIG. 3A is a diagram showing a style data memory used in the same 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 with the same style number. The bank 0 stores the most basic style data among the style data having the same genre, time signature, and beat, and the banks 1 to 255 store the style data having the same style number and variations thereof. I have to. Therefore, when there is no designated style, similar style data can be selected by selecting style data having the same style number but different bank numbers as the substitute style. The style numbers 238 to 255 are storage areas of style data that cannot be substituted. That is, the 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 a user or data of special ethnic music.

FIG. 9B is a flow chart showing the style substitution process. First, when there is no designated style designated by NBANK and NSTYLE, it is determined whether or not the style number NSTYLE is a substitute range number (n80). If the number is within the substitutable range, it is searched whether or not the style data of the same style number is stored in another bank number (n81). If the corresponding style data is searched, one of the most suitable ones is selected (n82) and the bank number is BANK.
, And NSTYLE to STYLE (n83). After this, this STYLE, BAN
Section number S in the style data specified by K
The automatic performance of the accompaniment by the section data designated by ECTION is started (n84) and the process returns. That is, the read pointer of the section data is set according to the progress of the current 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 a result, similar style data can be selected only by switching the bank number. Note that the bank number BANK may be forcibly set to 0 at n83. In this case, if there is no variation style, the basic style is used instead. Further, in this embodiment, style data is classified by genre, time signature, and beat, and only the same items are stored in the same style number.
The style data may be classified by genre and time signature, and the same style data may be stored in the same style number, and the bank number may identify what kind of beat the style data is. In addition, in this embodiment, when the style data memory is additionally installed,
The above-mentioned style number and the contents of the style data are added so that the relationship is the same as the data up to that point. That is, the contents of the memory are configured such that the same style data in the same and similar genres have 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 by different models. Even in the case, it is possible to reproduce the music having a similar atmosphere.

In the above embodiment, the event data for designating the style data is written in the song data, but other than this, it is also possible to apply it to the configuration for designating the style data from an external device.

Further, in the above embodiment, the style data is not substituted unless it is the same or similar genre, but in the worst case, the style data is substituted if the genre is the same and the beats are the same even if they are not similar. You may do it.

Further, in the above embodiment, when the data designating the style data such as the style number is read during the reproduction of the song data, it is determined whether or not the style data is stored and the stored data. If it does not exist, the substitute style data is decided, but before starting the song data playback, all style data selected in the song is extracted and the style data is stored in advance for all of them. It is also possible to start the reproduction of the song data after determining whether or not the song data is selected and selecting a substitute style.

Next, another embodiment of the present invention will be described. FIG. 13 is a flowchart showing the preferred style search process. In this preferred style search process,
Based on the song genre, time signature, and beat information stored in the header portion of the song data, style data suitable for playing in parallel with the playing of the song is searched. That is, in this embodiment, in place of the style data designated by the style designation data stored in the song data described above, 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 this is searched, and a style is selected from the styles. It is possible to play with a good compatibility. Even if the style designation data is not stored in the song data, it is possible to select the style data suitable for the song.

First, at n91, the header portion of the song data is read out 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 matching or similar to the genre, time signature, and beat of the song are searched. Then, in n93, a list of all the retrieved style data is displayed 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, time signatures, beats, and the like. After that, 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 plurality of retrieved style data may be randomly selected and reproduced together with the song data.

FIG. 14 is a flow chart showing the song search process. In this song search processing, the song data that matches the search conditions is searched using the song genre, time signature, and beat information stored in the header portion of the song data as the search conditions. That is, it is possible to search for song data that suits the user's preference from a large number of stored song data by designating the genre, time signature, and beat of the song.

At step n101, at least one of the genre, time signature, and beat of the song to be searched is designated as the search condition. For example, when specifying multiple conditions A and B, A
Specify the search condition like ANDB or AORB.
At n102, the header of the song data stored in the floppy disk is read, and a song matching or 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. Information other than the genre, time signature, and beat, such as the composer, the lyricist, and the singer name, may also be specified as the search condition.

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. For example,
When the song data is stored in the standard MIDI file format, this information may be stored as a meta event in a track chunk, or may be stored in a chunk different from the track chunk. . Further, these pieces of information may be stored in a file different from the file in which the song data is stored, and the file name and the like may be matched with the file of the song data, so that the song data and these pieces of information are associated with each other.

Information for genre, time signature, and beat may be used for searching style data, not limited to searching for song data.

[0072]

As described above, according to the present invention, when the performance data which is not stored in the performance data storage means is designated, the automatic performance means is executed by substituting a suitable one. Even if there is no specified performance data, automatic performance will not be impossible at all.

In this case, the performance data to be substituted (substitution data) is stored in the substitution table, or performance data similar to the performance data designated by the performance data storage means is used as the substitution data. By extracting the data as a group or storing similar performance data as a group and selecting the substitute data from this group, it is possible to select the substitute data more accurately, and an automatic performance with an atmosphere close to the original song. Will be possible.

Further, 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. When and are reproduced in parallel, a musically preferable performance becomes possible.

Further, according to the present invention, the performance data can be searched under vague conditions by storing at least one information of the genre, time signature and beat of the performance data in the performance data.

[Brief description of 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 an operation of the electronic musical instrument (event response processing).

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

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

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

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

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

Claims (9)

[Claims] 1. Performance data storage means for storing a plurality of types of performance data that is sequence data for automatic performance, and performance data designating means for designating performance data to be automatically performed.
An automatic performance device comprising: 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 is not stored in the performance data storage means. An automatic performance device comprising a substitute means for executing the automatic performance means by substituting other performance data stored in the performance data storage means when data is designated. 2. The substitution means stores a substitution table storing performance data to be substituted for the designated performance data, and a substitution table when performance data not stored in the performance data storage means is designated. 2. The automatic performance device according to claim 1, further comprising means for searching for performance data to be substituted. 3. When the performance data that is not stored in the performance data storage means is designated, the substitute means searches the performance data storage means to perform in a fixed relationship with the designated performance data. The automatic performance device according to claim 1, which is means for extracting data as performance data to be substituted. 4. The performance data storage means groups performance data having a certain relationship, stores the first designation information for each group, and stores the performance data in each group. When the performance data not stored in the performance data storage means is designated, the substitute means stores the designated performance data and the first performance information. 2. The automatic performance device according to claim 1, wherein the automatic performance device is a means for extracting, as performance data to be substituted, data having the same designation information but different second designation information. 5. The automatic performance device according to claim 3, wherein the performance data having the fixed relationship is performance data having at least the same or similar music genre as the designated performance data. 6. The automatic performance device according to claim 3, wherein the performance data having the fixed relationship is performance data having at least the same time signature as the designated performance data. 7. The automatic performance device according to claim 5, wherein the performance data having the fixed relationship is performance data having the same beat as that of the designated performance data. 8. A first stored automatic performance data including characteristic data representing characteristics of the stored automatic performance data.
Storage means, second storage means for storing a plurality of second automatic performance data including characteristic data representing characteristics of the stored automatic performance data, and the same or similar to the characteristic data included in the first automatic performance data. A search means for searching for second automatic performance data having characteristic data; and a reproducing means for reproducing the first automatic performance data and the searched second automatic performance data in parallel. Automatic playing device. 9. A genre of stored automatic performance data,
Storage means for storing a plurality of automatic performance data including data representing at least one of time signature and beat; specification means for specifying at least one of genre, time signature, and beat; genre, time signature specified by the specification means; An automatic performance device comprising: a search unit that searches for automatic performance data that matches or is similar to the search condition, using at least one of the beats as a search condition.