JP2006163211A - Performing data recorder and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To record performing data so as to match with bar lines, after the positions where the bar lines are made conscious of. <P>SOLUTION: In the playing data recording system, playing events Pa (..., Pk, ..., Pn, ...), based on the real playing of a user, are successively recorded together with the timing data tp indicating the playing timing as the playing data. When it is detected (ts) that an automatic accompaniment start (e.g. rhythm start) is instructed (Sa) during the playing recording, the automatic accompaniment start instruction Sa is recorded, and the timing tp corresponding to the recorded playing event Pa is corrected, in such a manner that the instruction timing ts thereof matches the timing tb4 of the bar lines. The timing tp', after the correction, can be readily calculated by adding the time lag α, from the automatic accompaniment start instruction timing ts up to the bar line timing tb4 immediately thereafter to the original timing tp. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a performance data recording system having a bar line alignment function.

  When recording performance data, the user may perform at a free tempo without automatic accompaniment, and may record it in real time. When the performance data recorded in this way is displayed as a musical score, the musical score cannot be correctly displayed unless the position of the bar line in the performance data is known.

As a conventional technique for this, for example, Patent Document 1 discloses a performance information analysis apparatus that analyzes performance data and automatically obtains the position of a bar line. However, in the method based on such performance data analysis, the obtained bar line position is not always the position intended by the user.
JP 7-129158 A

  In view of such circumstances, the present invention recognizes the bar line when the user starts playing without being aware of the bar line timing, and performs and records the bar line timing in the middle of the performance. It is an object of the present invention to provide a performance data recording system capable of recording performance data so as to match a bar line after the position.

  According to the main feature of the present invention, sequential recording means (P1) for sequentially recording performance events (Pa,...) Based on actual performance by the user as performance data together with timing data (tp,...) Representing the performance timing. Accompaniment start detection means [S4 · YES → S5 · NO → S6 (1)] for detecting that an automatic accompaniment start is instructed (Sa) during the recording operation of the sequential recording means (P1), and the detected automatic In response to the accompaniment start instruction (Sa), the automatic accompaniment start instruction (Sa) is recorded, and the automatic accompaniment start instruction timing (ts) is sequentially recorded so as to be the bar line timing (tb4). A performance data comprising recording control means (Q1 to Q6) for correcting timing data (tp) recorded corresponding to the performance event (Pa) by means (P1). And a performance event (Pa,...) Based on an actual performance by a user together with timing data (tp,...) Representing the performance timing. A sequential recording step (P1) for sequentially recording, and an accompaniment start detecting step for detecting that an automatic accompaniment start is instructed (Sa) in the course of sequentially recording performance data in the sequential recording step (P1) [S4. YES → S5 · NO → S6 (1)] and in response to the automatic accompaniment start instruction (Sa) detected in the accompaniment start detection step, the automatic accompaniment start instruction (Sa) is recorded and the automatic accompaniment is performed. Recording corresponding to the performance event (Pa) is sequentially performed in the recording step (P1) so that the start instruction timing (ts) becomes the bar line timing (tb4). Recording control step (Q1 to Q6) and a procedure consisting of computer performance data recording program executed by a (electronic musical device) [Claim 5] is provided to correct the timing data (tp). Note that the parentheses indicate reference symbols, terms, and the like of the corresponding embodiments, and the same applies to the following.

  In the performance data recording apparatus (electronic music apparatus) according to the present invention, the recording control means (Q1 to Q6) has a time difference from the instruction timing (ts) for starting the automatic accompaniment to the timing (tb4) of the bar line immediately thereafter (tb4) ( (α) is obtained, and this time difference (α) is added to the timing data (tp) recorded corresponding to the performance event (Pa) (tp ′). In the performance data recording apparatus (electronic music apparatus) according to the present invention, the sequential recording means (P1) records the initial time data at the start of the recording operation (tb1), and the recording control means (Q1 to Q6) are automatically operated. According to the instruction (Sa) for starting accompaniment, the initial time signature data is corrected to the time signature of automatic accompaniment. The performance data recording apparatus (electronic music apparatus) according to the present invention further records a time signature change instruction during the period from the recording operation start (tb1) to the automatic accompaniment start instruction (ts) of the sequential recording means (P1). And a recording prohibition means (R1 · NO) for prohibiting the recording.

  In the performance data recording system according to the present invention, if there is an automatic accompaniment start instruction (Sa) during the recording of the user performance, this start instruction (Sa) is recorded and the instruction timing (ts) is the bar line timing ( In accordance with tb4), predetermined recorded performance data (for example, in the case of recording at relative timing, automatic accompaniment start instruction timing (like the first performance data (Pa) recorded based on the actual performance of the user) The timing data corresponding to the performance data required to shift the entire performance data in time to match the ts) with the bar line timing (tb4) is modified (tp → tp ′). .

  Therefore, according to the present invention, after the user performs a free performance without first being aware of the bar timing, and after starting the automatic accompaniment in the middle of the free performance, the user is conscious that it matches the bar timing of the automatic accompaniment. When performing, the automatic accompaniment start timing is set to the bar line timing, so for performances after the automatic accompaniment start, the bar line will be positioned at the position intended by the user, Performance data can be recorded to match the bar line.

  In addition, according to the present invention, the timing difference (α) from the timing (ts) of the automatic accompaniment start instruction (Sa) to the immediately following bar line timing (ts) is obtained, and this timing difference (α) is recorded in a predetermined record. Since it is configured to add to the timing data (tp) corresponding to the performance data (Pa) (tp ′ = tp + α), it is possible to easily calculate the timing amount to be corrected and correct the timing of the performance data. it can.

  Further, according to the present invention, the initial time signature data is recorded at the start of performance recording (tb1), and the initial time signature data is corrected to the time signature of the automatic accompaniment in response to the automatic accompaniment start instruction (Sa). Therefore, even if a time signature different from that of the automatic accompaniment is set before the automatic accompaniment start, the automatic accompaniment start position can be surely set as the bar line position.

  Furthermore, according to the present invention, since the time change instruction is not recorded from the start of performance recording (tb1) to the start of automatic accompaniment instruction (ts), automatic accompaniment is started before the automatic accompaniment start. Even if a time signature different from the time signature is set, the automatic accompaniment start position can be reliably set as the bar line position.

  That is, in the performance data recording system according to the present invention, the recorded performance data can be configured to include or not include the bar line event, but the recorded performance data includes the bar line event. Even if it is not included, when the recorded performance data is reproduced, there is a characteristic technical effect that the automatic accompaniment start position can be surely matched with the bar line position.

  More specifically, depending on the specifications of the performance data reproducing apparatus, there are cases where the time change event position is interpreted as a bar line position, and others are not. When the time signature change instruction during free performance is not recorded as in the present invention and the time signature set at the beginning of the song (tb1) is unchanged up to the automatic accompaniment start position (tb4), it is uniquely calculated. Since the bar line position is obtained, the automatic accompaniment start position can be surely set to the bar line position even if various performance data reproducing apparatuses with various bar line interpretations are used.

[System Overview]
FIG. 1 is a block diagram showing the hardware configuration of a performance data recording system according to an embodiment of the present invention. Typically, an electronic musical instrument having a performance information recording function is used for an electronic music apparatus (computer) as a main body of the performance data recording system, but a personal computer (PC) having a performance operation unit and a musical tone signal generation unit is used. ) Can be used. Such an electronic music apparatus includes a central processing unit (CPU) 1, a random access memory (RAM) 2, a read only memory (ROM) 3, an external storage device 4, a performance operation detection circuit 5, a setting operation detection circuit 6, a display. A circuit 7, a sound source circuit 8, an effect circuit 9, a MIDI interface (I / F) 10, a communication interface (I / F) 11, and the like are provided. These elements 1 to 11 are connected to each other via a bus 12.

  The CPU 1 executes various music information processing including performance data recording processing using a clock by the timer 13 according to a predetermined control program. The RAM 2 is used as a storage area for temporarily holding various data necessary for these processes and for use in the processes. For example, in the performance data recording process, a performance data storage area is secured in the RAM 2 and an RF flag register for holding the state of the automatic accompaniment start recording flag RF is set. In order to execute these processes, the ROM 3 stores various control programs and control data including a performance data recording program in advance, and can also store automatic accompaniment data.

  The external storage device 4 is not only a built-in storage medium such as a hard disk (HD) but also a compact disk read only memory (CD-ROM), a flexible disk (FD), a magneto-optical (MO) disk, a digital multipurpose disk ( Various portable external recording media such as a small memory card such as a DVD, a smart media (registered trademark), and the like are included. An arbitrary external storage device (for example, HD) 4 stores various control programs, various automatic accompaniment data used for recording performance data, performance data obtained by the performance data recording process, and the like. Data and performance data that has been recorded can be reproduced by the electronic music apparatus.

  The performance operation detection circuit 5 functions as a performance operation unit together with a performance operation element 14 composed of a keyboard, a wheel or the like that is played in real time, detects the operation content of the performance operation element 14 by the user, and provides actual performance data corresponding thereto. Install it in the system itself. The introduced actual performance data can be recorded as a performance operation event during the performance data recording process.

  The setting operation detection circuit 6 functions as a panel setting unit together with the setting operation elements 15 such as key switches and mice, detects the setting operation contents of the setting operation elements 15, and introduces panel setting data corresponding thereto into the system main body. . For example, in addition to a recording start / stop switch for instructing start / stop of performance data recording, the setting operator has an automatic accompaniment start switch for instructing start of automatic accompaniment (Sa), tempo, time signature Various panel setting operators for setting various performance parameters such as volume, tone, and effect are included. In the performance data recording process started by the recording start switch, the automatic accompaniment start instruction (Sa) and various performance parameter change instructions can be recorded as performance operation events.

  Further, the display circuit 7 includes a display 16 such as an LCD for displaying various screens and various indicators, and controls the display / lighting contents according to instructions from the CPU 1 to provide display assistance for the operations of the respective operators 14 and 15. Do.

  The tone generator circuit 8 can generate a musical tone signal in accordance with actual performance data from the performance operator 14 and automatic performance data from the ROM 3 or the external storage device 4. The effect circuit 9 having the effect applying DSP gives a predetermined effect to the tone signal, and functions as a tone signal generator together with the tone generator circuit 8. The sound system 17 following the effect circuit 9 includes a D / A converter, an amplifier, and a speaker, and generates a musical sound based on the musical sound signal to which the effect is given.

  In addition, another MIDI music device 30 is connected to the MIDII / F 10, and MIDI performance data including automatic accompaniment data is exchanged between the electronic music device and the other music device 30 and used in this system. Can do. A communication network 40 such as the Internet or a local area network (LAN) is connected to the communication I / F 11, and a control program is downloaded from an external server computer 50 or the like, and automatic accompaniment data is stored in the external storage device 4. And can be used in this system.

[Overview of bar line alignment]
In the performance data recording system according to one embodiment of the present invention, when a user starts playing at a free tempo and performs an automatic accompaniment from the middle of the performance and is aware of the timing of the bar line, the user is aware of the bar line. User performance after the position can be recorded in real time along the bar line. FIG. 2 is a diagram for explaining the concept of bar line alignment in the performance data recording system according to one embodiment of the present invention.

  In FIG. 2, the upper part shows an example of the actual performance situation recorded when the user performance is recorded as it is, and the middle part shows the case where the bar line alignment is performed for the same user performance. An example of performance data to be recorded is shown. In the lower row, bar numbers, clocks, and time axis t are added as time-lapse indexes corresponding to the performance of each row. In this example, the time of user performance and automatic accompaniment is 4/4 time. Yes, the clock resolution (number of clocks per beat) is 480.

  When using the normal recording method when starting a performance at a free tempo and adding automatic accompaniment from the middle, various performance parameters related to the performance such as tempo and time signature are preset in the panel setting section as shown in the upper row. After that, the user plays freely without worrying about the tempo and time signature from the recording start time tb1, and after the automatic accompaniment start time ts, the user can perform tempo and auto accompaniment with a predetermined tempo and time signature. Performing performances with time signatures in mind.

  In this performance example, it is assumed that the initial time and the automatic accompaniment are 4/4 time signatures as described above, and the rhythm accompaniment is used for the automatic accompaniment. The upper and middle vertical lines indicate bar lines determined by the set tempo and time signature, and each bar line corresponds to the lower bar line number and clock accumulated value. The time position is represented by timings tb1 to tb5 on the time axis t.

  First, when the user instructs the start of performance recording by operating the recording start switch of the setting operator 14, the time when the start of recording is instructed is set to the timing tb1 of the first bar line, and this timing value is set to “0”. ", And initial setting data of various performance parameters such as tempo and time signature currently set in the panel setting section are recorded corresponding to the timing tb1 =" 0 ".

  Next, when the user actually performs the performance operation by operating the various panel operators of the performance operation element 14 and the setting operation element 15, the symbols “Pa”,..., “Pk”,. Performance operation events such as note-on (NoteOn) and note-off indicated by “Pn”,... Are generated, and these performance operation events Pa (,..., Pk,..., Pn,...) Are sequentially recorded with timing tp. It will be done. In the example of FIG. 2, the first performance operation event Pa that occurs at the timing tp is the first recording event that is recorded first among the events that are generated based on user operations during the free performance (tb1 to ts). And

  Now, at timing ts, when the user operates the automatic accompaniment start switch of the setting operator 14 to give an automatic accompaniment start instruction Sa, the automatic accompaniment start instruction Sa is one of performance operation events “automatic accompaniment”. As a “start (in this example,“ rhythm start ”)” event, it is recorded together with the timing value of that timing ts. Thus, after this timing ts, the user performs a performance conscious of the tempo and time signature, that is, a performance conscious of the bar line in accordance with the automatic accompaniment (rhythm), and records the performance operation event (..., Pn,...). Go.

  Here, since the automatic accompaniment start timing ts corresponding to the first bar line position of the automatic accompaniment is indefinite with respect to the bar line timings tb1 to tb5, if the actual performance situation is recorded as shown in the upper row, the performance recording is performed. Does not match the bar line position based on the time signature set at the start. Therefore, when the musical score is displayed based on the performance data recorded in this manner, the correct musical score corresponding to the bar line is not displayed even though the user has performed while paying attention to the bar line after the start of automatic accompaniment.

  In contrast, in this system, the timing of the recorded event is corrected so that the automatic accompaniment start timing matches the recorded bar line timing. That is, as shown in the middle stage, a time difference (timing difference) α between the timing ts of the automatic accompaniment start instruction Sa and the reference bar timing tb4 is obtained, and the recorded events Pa, .., Pk,..., Pn,. When the event whose timing is corrected in this way is recorded as performance data, a musical score in which the user's performance content after the start of automatic accompaniment is aligned with the bar line of the automatic accompaniment can be displayed based on the performance data. it can.

  Next, an example of calculating the time difference between the automatic accompaniment start and the reference bar line will be described. For example, if the reference bar timing that is the reference to the timing ts of the automatic accompaniment start instruction Sa is the timing of the next bar line that appears after this timing ts, as shown in the figure, immediately after the automatic accompaniment start timing ts. The time difference α with the timing tb4 of the fourth bar line is calculated. That is, this time difference α is obtained by α = “time TB from the recording start timing tb1 to the reference bar timing tb4” − “time TS from the recording start timing tb1 to the automatic accompaniment start timing ts”. It can be expressed as The time TB is a multiple of a one-measure time set for the automatic accompaniment to match the automatic accompaniment bar line.

  Then, this time difference α is added to the actual timing tp of the first recording event Pa and corrected to timing tp ′, so that all recording events after the first recording event Pa are shifted by the time difference α. Record as data. In this case, if the method of representing the timing of each event of the recorded performance data by the relative time from the timing of the immediately preceding event (referred to as “relative timing”), only the timing tp of the first recorded event Pa is the timing tp. There is an advantage that the timing of all subsequent recording events can be shifted to the timing after correction only by correcting to '.

  In the above example, the time difference α from the automatic accompaniment start timing ts to the next fourth bar line tb4 is added to the timing tp of the predetermined event (first event) Pa recorded by the user, and the recorded music Although the temporal position is shifted as a whole, the time difference β is obtained by setting the reference bar line timing with respect to the automatic accompaniment start timing ts as the immediately preceding third bar line timing tb3. You may just move forward. In this case, the time difference β is obtained by β = “time TS from the recording start timing tb1 to the automatic accompaniment start timing ts” − “time TB ′ from the recording start timing tb1 to the reference bar timing tb3” in FIG. .

  As a specific procedure, one measure is added to the beginning of the song, the initial setting data recorded at the beginning of the song is moved to the beginning of the added measure, and automatic accompaniment is started from a predetermined event Pa timing tp. The time difference β between the timing ts and the timing tb3 of the third bar line immediately before is subtracted to correct to the timing tp ″.

  The points of performance data recording by this system will be briefly described with reference to FIG. 2 as follows: In this system, performance operation events Pa (,..., Pk,..., Pn,...) Are sequentially recorded as performance data together with timing data tp representing the performance timing. When it is detected during the performance recording that an automatic accompaniment start (for example, rhythm start) is instructed (Sa) (ts), this automatic accompaniment start instruction Sa is recorded and the instruction timing ts is at the bar line timing tb4. In order to match, the timing tp corresponding to the recorded performance operation event Pa is corrected (→ tp ′). The corrected timing tp ′ is simply calculated by obtaining the time difference α from the timing ts of the automatic accompaniment start instruction Sa to the timing tb4 of the bar line immediately thereafter and adding this time difference α to the original timing tp. be able to.

[Example of operation data recording process flow]
In the performance data recording system according to the embodiment of the present invention, the performance data can be recorded in the manner as described above in accordance with the performance data recording processing program. FIG. 3 is a flowchart showing the operation procedure of the performance data recording process according to one embodiment of the present invention. FIGS. 4 and 5 show the process (1) for each event and the process for each event included in the performance data recording process. It is a flowchart showing the operation | movement procedure of (2) and (3).

  When the performance data recording process is activated, the CPU 1 determines in the first step S1 whether or not a performance recording start instruction by a user operation of the recording start switch of the setting operator 15 has been detected, and a performance recording start instruction. Is not detected (S1 → NO), the determination operation is repeated in step S1 to wait for an instruction to start performance recording.

  When an instruction to start performance recording is given (S1 → YES), first, in step S2, various initial setting data including timing “0” and tempo and time signature are recorded in the performance data storage area in the RAM 2, In the next step S3, the automatic accompaniment start recording flag RF in the RF flag register in the RAM 2 is set to “0”. Subsequently, in step S4, it is determined whether or not a performance operation event has occurred. Note that the performance operation event includes not only the operation of the performance operator 14 by the user, but also the change of various performance parameters based on the operation of the panel setting operator related to the performance among the setting operators 15.

  Here, while the performance operation event does not occur (S4 → NO), the determination operation is repeated in this step S4 to wait for the performance operation event to be generated. When a performance operation event occurs (S4 → YES), the process proceeds to step S5, and it is further determined whether or not a performance recording stop is instructed. If the stop of the performance recording is not instructed (S5 → NO), the process proceeds to step S6 to execute “process for each event”.

  “Process by event” in step S6 includes “process by event (1)” for processing a normal performance operation event, and “process by event (2)” for processing an automatic accompaniment start event. And “process for each event (3)” for processing the time signature change event is included, and corresponding processing is performed in accordance with each performance operation event. After “event-by-event processing”, the process returns to step S4 to wait for the next performance operation event to occur, and while there is no instruction to stop performance recording (S5 → NO), the processing of steps S4 to S6 described above. Repeat the operation.

  When an instruction to stop performance recording is given by a user operation of the recording stop switch of the setting operator 15 (S5 → YES), the process proceeds to step S7, where the current timing and end event are recorded, and this performance data recording process Exit. Note that the timing recording is described in a relative timing in which the relative time from the timing of the immediately preceding event is the timing of the event. The same applies to (3) ". Further, the performance data recorded in the performance data storage area of the RAM 2 by this performance data recording process is reproduced as it is to display the score and perform the reproduction as needed, or once, the performance data recorded in the performance data storage area of the RAM 2 is temporarily stored in the external storage device 4. It can be stored in a predetermined recording medium, and then played back when necessary to display a score and perform playback.

[Processing by event]
The “process for each event (1)” shown in the operation process flow in FIG. 4 is activated every time a normal performance operation event occurs. The normal performance operation event is a performance operation event excluding an automatic accompaniment start event and a time signature change event. When a normal performance operation event occurs, in step P1, the current relative timing at which the normal performance operation event has occurred and the content of the performance operation event are added to the performance data storage area, and step S4 of the performance data recording process (FIG. 3). Return to

  The “process for each event (2)” whose operation process flow is shown in FIG. 5A is activated every time the automatic accompaniment start event Sa occurs. It is determined whether or not the start recording flag RF is “0”.

  Here, when it is determined that the flag RF = “0”, that is, when the automatic accompaniment start event Sa is generated for the first time after starting performance recording (Q1 → YES), the automatic accompaniment start recording flag RF is determined in step Q2. Is set to “1”, and in the next step Q3, the content of the time signature event set at the beginning (tb1) of the recorded performance data is corrected to the time signature of the automatic accompaniment. In the following step Q4, a timing difference (time difference) α from the instruction timing ts of the automatic accompaniment start event Sa to the next (immediately) bar line based on the time of the automatic accompaniment is calculated. The timing data is corrected by adding the timing difference α calculated at step Q to the timing data value of the recording event.

  In the example of FIG. 2, the bar line next to the instruction timing ts of the automatic accompaniment start event Sa is the fourth bar line at the timing tb4. Therefore, the value of α is, for example, (clock until the fourth bar line timing tb4). (Accumulated value)-(clock accumulated value until accompaniment start timing ts), and the corrected timing tp 'is obtained by adding the α value to the relative timing value of the timing tp of the first recording event Pa. It is done.

  In addition, in the example of FIG. 2, when the time of the automatic accompaniment by the first automatic accompaniment start event Sa is 3/4, the set 4/4 time is changed to 3/4 time. Since the first to fifth bar line positions tb1 ′ to tb5 ′ are respectively changed to the positions of 1440, 2880, 4320, 5760, and 7200, the bar lines immediately after the automatic accompaniment start timing ts are clocks. The number 5760 is the fifth bar line, and the timing difference α from the instruction timing ts to the fifth bar line timing tb5 ′ (= 5760 clocks) is calculated. However, in this time signature change example, the bar line positions tb4 and tb5 'immediately before and after the time signature change coincide by chance.

  After correcting the timing data of the first recording event in step Q5, the process proceeds to step Q6, where the current relative timing and automatic accompaniment start event are additionally recorded in the performance data storage area (FIG. 3). ) To step S4.

  On the other hand, when it is determined that the flag RF is not “0”, that is, when the second and subsequent automatic accompaniment start events Sa occur (Q1 → NO), the process immediately proceeds to step Q6, where the current relative timing and Processing is performed to add the automatic accompaniment start event to the performance data storage area, and the process returns to step S4 of the performance data recording process (FIG. 3). The second and subsequent automatic accompaniment start events Sa occur when the automatic accompaniment is started, stopped once, and then restarted thereafter.

  “Process for each event (3)” whose operation processing flow is shown in FIG. 5B is activated every time a time change event occurs, and in the first step Q1, the contents of the RF flag register are examined and start recording is performed. It is determined whether or not the flag RF is “1”.

  Here, when it is determined that the flag RF = “0”, that is, when the automatic accompaniment start event Sa has not yet occurred since the start of performance recording (Q1 → NO), this “processing for each event” is immediately performed. Through (3) ", the process returns to step S4 of the performance data recording process (FIG. 3). That is, the time change event is not recorded.

  On the other hand, when it is determined that the flag RF = “1”, that is, once the automatic accompaniment start event Sa occurs (R1 → YES), in step R2, the current timing and time signature change event are recorded as performance data. The program is additionally recorded in the storage area, and the process returns to step S4 of the performance data recording process (FIG. 3).

[Various Embodiments]
The preferred embodiment of the present invention has been described above with reference to the drawings. However, this is merely an example, and the present invention can be variously modified without departing from the spirit of the invention. For example, the form of automatic accompaniment does not matter. Automatic rhythm, automatic accompaniment with accompaniment part, automatic arpeggio performance, metronome, etc. may be used.

  In the embodiment, the timing correction process is performed while performing real-time recording. However, the timing correction may be performed after the recording is completed.

It is a hardware block diagram of a performance data recording system according to an embodiment of the present invention. It is a schematic diagram for demonstrating bar line alignment in the performance data recording system by one Example of this invention. It is a flowchart showing the procedure of the performance data recording process by one Example of this invention. It is a flowchart showing the procedure of the process (1) for every event by one Example of this invention. It is a flowchart showing the procedure of the process (2) and (3) for every event by one Example of this invention.

Explanation of symbols

tb1-tb5 bar line timing,
Pa, ..., Pk, ..., Pn, ... Normal performance operation [event] or performance event,
tp; tp ′, tp ″ The actual timing of the first recording event and the timing after correction,
Sa Automatic accompaniment start [event] indicating an instruction to start automatic accompaniment,
ts Actual timing of automatic accompaniment start (rhythm start) Sa.

Claims (5)

Sequential recording means for sequentially recording performance events based on actual performance by a user as performance data together with timing data representing the performance timing;
Accompaniment start detection means for detecting that an automatic accompaniment start is instructed during the recording operation of the sequential recording means;
In response to the detected automatic accompaniment start instruction, the automatic accompaniment start instruction is recorded, and the sequential recording means responds to the performance event so that the automatic accompaniment start instruction timing becomes the bar line timing. A performance data recording apparatus comprising recording control means for correcting timing data recorded as a result. The recording control means obtains a time difference from the instruction timing for starting the automatic accompaniment to the timing of the bar line immediately thereafter, and adds the time difference to timing data recorded corresponding to the performance event. The performance data recording apparatus according to claim 1. The sequential recording means records initial time data at the start of a recording operation,
The performance data recording apparatus according to claim 1 or 2, wherein the recording control means corrects the initial time signature data to an automatic time signature in response to an instruction to start the automatic accompaniment. further,
4. The recording apparatus according to claim 1, further comprising a recording prohibiting unit that prohibits recording of a time signature change instruction from a start of a recording operation of the sequential recording unit to an instruction to start the automatic accompaniment. The performance data recording device described. A sequential recording step for sequentially recording performance events based on actual performance by a user as performance data together with timing data representing the performance timing;
An accompaniment start detection step for detecting that an automatic accompaniment start is instructed during the sequential recording of performance data in the sequential recording step;
In accordance with the automatic accompaniment start instruction detected in the accompaniment start detection step, the automatic accompaniment start instruction is recorded, and the sequential recording step is performed so that the automatic accompaniment start instruction timing is the bar line timing. A performance data recording program for causing a computer to execute a procedure comprising a recording control step for correcting timing data recorded in response to the performance event.

Images