JP5338101B2 - Electronic music apparatus and performance processing program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To allow even a person not having performing technique such as parent and child to enjoy duet. <P>SOLUTION: In the performance processing system, a keyboard 15K of the electronic music device comprises a parent key range Rp and a child key range Rc, and parent part and child part performance information Dp, Dc are prepared in a performance data memorizing section D. When the patent user plays music in the patent key range Rp, a parent-side musical sound signal is generated (C) on the basis of patent part performance information Dp read out from the memorizing section D corresponding to the performance. A child-side musical sound signal corresponding to the child part performance information Dc is generated on the basis of child user's performance in the child key range Rc. In one embodiment, performance guide is indicated to the child user (J&rarr;B) on the basis of the child part performance information Dc read out corresponding to the parent user's performance; in another embodiment, the child-side musical sound signal is generated on the basis of key striking information obtained by converting the child user's key striking information according to the child part performance information Dc; and further in the other embodiment, the performance is progressed at beat timing. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a performance processing system that allows a player to enjoy a continuous play even when there is a person who does not have a performance technique such as a parent and child in an electronic music apparatus such as a keyboard instrument having a performance guide function and an automatic performance function.

2. Description of the Related Art Conventionally, a technique that is applied to a keyboard instrument when playing a rendition, that is, when two persons perform, is known. For example, Patent Document 1 discloses an electronic keyboard instrument for two performers. A technique for dividing the key range is disclosed.
JP 2006-337487 A

  In addition, it has traditionally been practiced that students play consecutively with specialized teachers in performance lessons such as keyboard instruments, but when performing similar exercises at home, they can practice alone using the automatic performance function of the instrument. You have to play it with your parents. However, in the former case, the other party is a machine and is unsavory, and it is impossible to change the tempo according to the difficulty of the phrase. In the latter case, there is an inconvenience that a parent cannot practice unless the parent has the performance skills.

  In general, in order to enjoy a bullet, both performers must have performance skills, and one cannot be played by an amateur.

  In view of such circumstances, the present invention allows a player who enjoys a rendition even with a person who does not have performance skills such as a parent and child in an electronic music apparatus such as a keyboard instrument having a performance guide function or an automatic performance function. An object of the present invention is to provide a performance processing system capable of performing music.

  According to the main feature of the present invention, a keyboard (15K) comprising a plurality of keys and having a first key range (parent key range Rp) and a second key range (child key range Rc), and a first key range (Rp) Performance data (parent part performance information Dp) of the first part (parent part) corresponding to the performance of the second part (child part performance) corresponding to the performance in the second key range (Rc) (child part performance) Performance data storage means (D) for storing performance data (Dt: Dp, Dc, De) including a plurality of parts including information Dc), and key operation in the first key range (Rp) is detected and first key press information First key press detection means (E; P11 = YES, P21 = YES, P31 = YES) that outputs (parent side key press information) and a second key press in the second key range (Rc) are detected. Second key press detection means (E; P11 = NO, P21 = NO, which outputs key information (slave side key press information), 31 = NO) and the performance data (Dp) to the second part (child part) of the first part (parent part) from the performance data storage means (D) according to the first key depression information (parent side key depression information). Performance data reading means (G, H; R14 to R17, R2 → R3 = YES, R5 = YES; S14 to S17, S2 → S3 = YES, S5 = YES; T13 to T16, T2) → T3 = YES, T5 = YES) and the performance data (Dp) of the first part (parent part) read by the performance data reading means (H; R3 = YES, S3 = YES, T3 = YES) First musical tone signal generating means (C; R4, S4, T4) for generating one musical tone signal and second part (child part) read by the performance data reading means (H; R5 = YES, T5 = YES) Performance guide instruction means (J, B; R6, T6; [0091]) for instructing a performance guide based on the performance data (Dc) and second key pressing information (child side key pressing information). An electronic music apparatus comprising a second musical sound signal generating means (K, C; P15, S6-P25 → P26, P34) for generating a musical sound signal is provided. Performance data (parent part) corresponding to the performance in the keyboard (15K) having the range (parent key range Rp) and the second key range (child key range Rc), and the first key range (Rp) Part performance information (Dt: Dp, Dc, Dp) including part performance information Dp) and performance data (child part performance information Dc) of the second part (child part) corresponding to the performance in the second key range (Rc) Performance data storage means (D) for storing De), and music signal generation The first press for detecting the key operation in the first key range (Rp) and outputting the first key press information (parent side key press information) to a computer having a generating means (C) and functioning as an electronic music device. Key detection step (E; P11 = YES, P31 = YES) and second key press detection that detects key operation in the second key range (Rc) and outputs second key press information (child side key press information) The performance data (Dp) of the first part (parent part) from the performance data storage means (D) in accordance with the step (E; P11 = NO, P31 = NO) and the first key depression information (parent side key depression information) Through performance data reading step (H; R14 to R17, R2 → R3 = YES, R5 = YES; T13 to T16, T2 → T3 = YES, T5 = YES) ) And performance data reading step (R3 = YES, 3 = YES) The first musical tone signal generation control step (R4, T4) for causing the musical tone signal generating means (C) to generate the first musical tone signal based on the performance data (Dp) of the first part (parent part) read in (3 = YES). And a performance guide instruction step (J; R6) for instructing a performance guide based on the performance data (Dc) of the second part (child part) read in the performance data reading step (H; R5 = YES, T5 = YES). T6) and a second musical tone signal generation control step (P15, P34) for causing the musical tone signal generating means (C) to generate a second musical tone signal based on the second key pressing information (child side key pressing information). A performance processing program (claim 4) is provided. Note that the parentheses indicate reference symbols, terms, parts, and the like of the examples added for convenience of understanding, and the same applies to the following.

  The electronic music apparatus according to the present invention further includes performance data (Dp) of the first part (parent part) and second part (child part) from the performance data (Dt: Dp, Dc, De) of a plurality of parts. The performance data (Dc) can be configured to include part designating means ([0031], [0053], [0073]).

  Further, in the electronic music apparatus according to the present invention, the second musical tone signal generating means (K, C; P15, S6-P25 → P26, P34) is read by the performance data reading means (H; S5 = YES). The second key press information (slave side key press information) is converted according to the performance data (Dc) of the (child part) (K; S6-P25), and the second musical tone is based on the converted second key press information. A signal can be generated (C; P25 → P26; [0091]).

  In the performance processing system according to the main feature of the present invention (Claims 1 and 4), the keyboard (15K) of the electronic music apparatus is composed of a plurality of keys and includes a first key range (Rp) and a second key range (Rc), The performance data storage means (D) stores the performance data (parent part performance information Dp) of the first part (parent part) corresponding to the performance in the first key range (Rp) and the second key range (Rc). Performance data (Dt: Dp, Dc, De) of a plurality of parts including performance data (child part performance information Dc) of the second part (child part) corresponding to the performance is stored. In accordance with the first key pressing information (parent key pressing information) based on the performance of the parent user in the first key range (Rp), the performance data of the first part (parent part) from the performance data storage means (D) ( Dp) to performance data (Dc) of the second part (child part) are read (G, H; R14 to R17, R2 → R3 = YES, R5 = YES; T13 to T16, T2 → T3 = YES, T5) = YES), a first musical tone signal is generated based on the performance data (Dp) of the first part (parent part) read in accordance with the performance of the parent user (C; R4, T4). On the other hand, based on the performance data (Dc) of the second part (child part) read according to the performance of the parent user, a performance guide for the child user performing in the second key range (Rc) is provided. I (J, B; R6, T6), the second musical tone signal is generated based on the second key pressing information (child key pressing information) based on the performance of the child user in the second key range (Rc) ( C; P15, P34).

That is, this system is provided with an automatic performance function (R2 to R6; T2 to T6) for reproducing the performance data (Dp, Dc) of the first part and the second part prepared in advance, and the keyboard (15K ) Is divided into two key ranges (Rp, Rc). For example, a parent user (mother) plays a low range (Rp) and a high range (Rc) is played by a child user (child), which may be repeated. it can. Then, when the parent user performs a performance by pressing the low range (Rp), the progress of the automatic performance is controlled by the key pressing information (P13-R15 to R17, R1 = YES → R2 to R6; P32 to T14). -T16, T1 = YES-> T2-T6). For such control, depending on the level of the performance technique of the parent user, for example, (1) a tempo is given by pressing keys at regular intervals, such as one beat at a time, and if there is no key pressing (beat progress mode), (2) Give only the performance timing to be played by the performance data (Dp) of the first part and wait if there is no key depression (first / second / second embodiment), (3) Performance data of the first part (Dp) gives the timing and pitch to be played and waits until a key is pressed (first / second embodiment), etc. Further, the automatic performance function (R2 to R5 → R6; T2 to T5 → T6) for reproducing the performance data (Dc) of the second part (child part) is read (reproduced) in accordance with the performance of the parent user. Based on the performance data (Dc) of the second part (child part), a performance guide for the child user is performed (R6, T6).
Therefore, according to the present invention, even if there is a person who does not have a performance technique such as a parent and child, it is possible to enjoy the rendition and the child user can perform repetitive rendition in accordance with the performance pace of the parent user. .

Further, in the electronic music apparatus according to the present invention (Claim 2), the performance data (Dp) and the second performance data (Dp) of the first part (parent part) among the performance data (Dt: Dp, Dc, De) of a plurality of parts are further provided. The performance data (Dc) of the part (child part) is designated ([0031], [0073]).
Therefore, according to the present invention, the parent / child user can designate the first part and the second part one by one from the performance data prepared in advance.

Further, in the electronic music apparatus according to the present invention (Claim 3), the second key pressing information (child key pressing information) based on the performance of the child user is obtained by the automatic performance function (S2 to S5 → S6). The second musical tone signal is converted according to the performance data (Dc) of the second part (child part) read (reproduced) according to the performance (K; S6-P25), and based on the converted key depression information. Is generated (C; P25 → P26; [0091]). For example, if (A) the key to be played by the child user (= the key having the same pitch as the performance data (Dc) of the second part (child part) reproduced by the automatic performance function) is pressed, a sound is generated (wrong pressing). (Sounds that do not sound or make a mistake are pronounced for keys), (B) Performance data (Dc) of the second part (child part) reproduced by the automatic performance function at the key-pressing timing of the child user ) (Pronunciation of model performance sound), (C) chord progression (Dc) of the second part (child part) reproduced by the automatic performance function, based on the key press information based on the performance of the child user. ), And so on.
Therefore, according to the present invention, various modifications and changes can be added to the performance of the child user, and a variety of bullets can be enjoyed.

[System Overview]
An electronic music apparatus serving as a main body of a performance processing system according to an embodiment of the present invention is a kind of computer having a music information processing function including a performance guide function and an automatic performance function, and is typically an electronic keyboard instrument. A dedicated music device having a performance operation unit including a keyboard is used. FIG. 1 is a block diagram showing the hardware configuration of an electronic music apparatus according to an embodiment of the present invention. This 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 performance indicator control circuit 6, and a setting operation. A detection circuit 7, a display circuit 8, a sound source circuit 9, an effect circuit 10, a MIDI interface (I / F) 11, a communication interface (I / F) 12, etc. are provided, and these elements 1 to 12 are mutually connected via a bus 13. Connected.

  The CPU 1 constitutes a data processing unit together with the RAM 2 and the ROM 3 and executes various musical tone information processing including performance processing using a clock by the timer 14 according to a predetermined control program. The RAM 2 is used as a work area for temporarily storing various data necessary for these processes. For example, in performance processing, a buffer memory (communication buffer, reference buffer) and a flag register (for playing flag) are used. A delay time counter is provided. The ROM 3 stores various control programs including performance processing programs, performance data, and control data such as note reference tables in order to execute these processes.

  The external storage device 4 includes a compact disk read only memory (CD-ROM), a flexible disk (FD), a built-in storage medium such as a rewritable semiconductor memory such as a hard disk (HD) and a flash memory, It includes various portable external recording media such as magneto-optical (MO) disks, digital multi-purpose disks (DVD), small memory cards such as SmartMedia (registered trademark), and so on. The user can store various control programs, performance data, and the like in an arbitrary external storage device (for example, HD) 4 and process the arbitrary performance data with this electronic music device.

  The performance operation detection circuit 5 constitutes a performance operation section A together with a performance operation element 15 such as a keyboard (15K) having a plurality of keys, detects the performance operation contents of the performance operation element 15, and information corresponding to the detected contents. Is introduced into the data processing unit. The performance indicator control circuit 6 constitutes a performance instruction section B together with a performance indicator 16 composed of LEDs or the like, and is activated in the guide mode or the like, and the contents of the performance instruction of the performance indicator 16 are sent from the CPU 1. Control according to the command.

  The setting operation detection circuit 7 detects the setting operation content of the setting operation element 17 such as a key switch or a mouse and introduces it into the data processing unit. The setting operator 17 includes, for example, a continuous mode transition switch and a normal mode transition switch, and a switch for changing modes such as a guide mode, a performance conversion mode, and a beat progression mode under the continuous mode. The display circuit 8 includes a display 18 such as an LCD for displaying various screens and various indicators (not shown). The display circuit 8 controls the display / lighting contents according to commands from the CPU 1, and responds to operations of the performance operator 15 and the setting operator 17. Provide display assistance.

  The tone generator circuit 9 constitutes a tone signal generator C together with an effect circuit 10 having a DSP, and generates an audio format tone signal based on the performance operation of the performance operator 15, and the effect circuit 10 receives the desired tone signal. Give the effect of. The sound system 19 connected to the effect circuit 10 includes a D / A converter, an amplifier, and a speaker, and generates a musical sound based on a musical sound signal from the effect circuit 10. The tone signal generator C can also generate a tone signal based on performance data from the storage means 3, 4 and the like.

  Other MIDI music equipment MD is connected to MIDII / F11, and MIDI performance data can be exchanged between this electronic music apparatus and other music equipment MD. For example, performance data from other music equipment MD Can be used with this electronic music apparatus. The communication I / F 12 is connected to a communication network CN such as the Internet or a local area network (LAN), and a control program and performance data are downloaded from an external server computer SV such as a distribution device and used in this electronic music device. be able to.

[Outline of each embodiment and its operation mode]
In the performance processing system according to one embodiment of the present invention, in the continuous mode, the keyboard 15K, which is the main element of the performance operator 15, is divided into a parent key range (Rp) and a child key range (Rc), and each key range is divided. The user can perform a performance operation (key operation) and enjoy a reverberation. Here, a user who performs a performance operation in the child key range (Rc) is assumed to be a user (child user or simply child) such as a child who has acquired a certain level of performance technique, and the parent key range (Rp ) Is assumed to be an elderly user (such as a parent user or simply a parent) such as a parent who does not have much performance skills, but it is not always necessary to repeat in this manner. The system can be broadly divided into three embodiments in the continuous mode. In each embodiment, the “guide mode” is considered from the viewpoint of performance characteristics with respect to the performance operation of the child key range (Rc). It is possible to operate in basic operation modes called “performance conversion mode” and “beat progression mode”. Each embodiment has a plurality of modified embodiments. FIG. 2 is a conceptual diagram of the performance processing system in the guide mode according to the first embodiment of the present invention.

  In the first embodiment, it operates in the “guide mode” and causes both the timing of the performance operation and the pitch in the parent key range Rp, as shown in the conceptual diagram of FIG. 2 (processing flow is FIG. 5 and FIG. 6). The automatic performance based on the performance data Dt is controlled as information, and with respect to the child key range Rc, the performance instruction section B is driven in accordance with the automatic performance to perform performance guidance. In the first embodiment, there is an embodiment modified to have only one cause information, which is referred to as the 1-1 embodiment. In the first to first embodiments, although the operation is performed in the guide mode, there is no transpose unit (pitch conversion unit) FP for the key depression information of the parent key range Rp indicated by the broken line in FIG. The automatic performance is controlled only by the timing of the operation, and a performance guide is performed in the child key range Rc. In the first embodiment, there are also the first to second embodiments and the first to third embodiments that operate in the guide mode but use the performance operation in the parent key range Rp as it is for generating (sounding) a musical tone signal. (See FIG. 14).

  The second embodiment (see FIGS. 7 to 9) operates in the “performance conversion mode” and controls automatic performance based on the performance data Dt at both the timing of the performance operation and the pitch in the parent key range Rp. A musical tone signal is generated after the performance conversion information (C) is converted (modified) by the performance conversion unit (K) in accordance with the performance (C). In the second embodiment, there is a 2-1 embodiment in which the cause information is changed to only one, and in the 2-1 embodiment, the operation is performed in the “performance conversion mode”. Similarly, the transpose unit FP is eliminated, the automatic performance is controlled only by the timing of the performance operation in the parent key range Rp, and the performance conversion (K) of the child key range Rc is performed in accordance with the automatic performance. The second embodiment also operates in the performance conversion mode, but as in the first to second embodiments and the first to third embodiments, the performance operation in the parent key range Rp is used as it is for the generation of the musical sound signal. There are 2-2 and 2-3 embodiments (not shown).

  In the third embodiment (see FIGS. 10 to 12), an automatic performance based on the performance data Dt is performed in accordance with a performance operation that operates in the “beat progression mode” and presses every beat according to the time signature in the parent key range Rp. In the same manner as in the first embodiment, the performance instruction unit B is driven in accordance with the automatic performance to perform the performance guide for the child key range Rc. Although the point of performing the performance guide is the same as in the first embodiment, it is called “beat progression mode” because of the great feature that the performance proceeds only with the beat timing of the parent key range Rp. Therefore, in the third embodiment, as a modified embodiment, the operation is performed in the beat progression mode and the automatic performance is controlled at the timing of the beat in the parent key range Rp, but in the child key range, the same as the second embodiment. In addition, there is a (3-1) embodiment in which a musical tone signal is generated after converting performance operation information instead of a performance guide (see FIG. 13).

The above is summarized for the main embodiment as shown in Table 1.

[Appearance of performance control section and performance instruction section]
In the performance processing system according to one embodiment of the present invention, as described above, the keyboard 15K is divided into the parent key range (Rp) and the child key range (Rc) when performing repetitive bats. A performance instruction is given by the performance instruction section B for the region (Rc), and various types of guide mechanisms can be adopted for the performance instruction section B. 3 and 4 show an example of the appearance of a performance operation and performance instruction section of an electronic music apparatus according to an embodiment of the present invention. The appearance 1 of FIG. 3 uses a light emitting element such as an LED as a performance instruction means. An example of the appearance when a key to be pressed is designated is shown.

  In the appearance 1 of FIG. 3, an LED guide lamp 16L is arranged for each key in the vicinity of the keyboard 15K of the performance operator 15. The keyboard 15K is divided into a low and high key range Rp and a high and high key range Rc with a split point as a boundary when a rendition is performed. The low and high key range Rp is referred to as a parent key range (also referred to as a parent side key range). The high key range Rc is called a child key range (also called a child side key range). When the parent user performs key depression (performance) in the parent key range Rp, the key corresponding to each note of the performance data read in accordance with the key depression of the parent user in the LED guide lamp 16L in the child key range Rc. The LED lamps provided facing each other are turned on, and a performance instruction (also referred to as a performance guide) is given to the child user to perform a key pressing operation.

  Regarding the display of the split point, in the electronic music apparatus dedicated to the continuous mode, as shown in the figure, the characters “SPLIT POINT” and / or the split mark (baseball home) The base arrow may be displayed in a fixed manner. However, in an electronic music device equipped with the normal mode, it is possible to use a variable display method so that characters and marks appear only when the key range is divided. preferable.

  In the external appearance 2 of FIG. 4A, the key to be depressed is illuminated using built-in LED lamps 16E (not shown) incorporated in each key of the keyboard 15K, and the corresponding key is notified to the child user. For example, each key of the keyboard 15K is formed of a material such as a translucent synthetic resin, and the LED light emitter 16E is stored in the lower part of the key or incorporated in the key. Is milky white and the black key is dark black. However, when the performance guide is performed in the guide mode, the built-in LED lamp 16E corresponding to the corresponding key in the child key range Rc is turned on in accordance with the reading of the performance data. By lighting up, the corresponding key itself is lit brightly to instruct the user to press the key.

  Appearance 3 in FIG. 4 (2) shows an example of appearance when a key to be pressed is instructed using the LCD display 16D as performance guide means. In the example of FIG. 4 (2a), the performance guide screen displayed on the display 16D displays a keyboard image that simulates the keyboard 15K to be guided, and the operation keys corresponding to the performance in the parent key range Rp are marked with a circle. A performance instruction is given by highlighting with, for example. The target to be guided is not limited to all keys, but may be limited to a limited range such as the middle of the keyboard 15K or only the range of the child key range Rc. Further, as shown in the figure, the bass pitch range corresponding to the parent key range Rp may be a fixed gray image so that a key depression instruction can be given only by half the treble range corresponding to the slave key range Rc. Good.

  Further, as shown in FIGS. 4 (2b) and (2c), a staff score may be used instead of the keyboard. In this case, in the screen example of FIG. 4 (2b), each note based on the performance data currently in progress is sequentially displayed as a note image at a corresponding pitch position on the staff and is pushed to the child user. The key is indicated. On the other hand, in the screen example of FIG. 4 (2b), the entire score or a certain range of score is displayed, and a note based on the performance data currently in progress is indicated by an arrow or a frame figure.

[Operation in guide mode (first embodiment)]
The performance processing system according to the first embodiment of the present invention operates in the guide mode and is represented by functional blocks shown in the conceptual diagram of FIG. In the guide mode, the parent user among the parent and child users performs in the parent key range Rp, and the actual performance information based on the performance in the parent key range Rp is stored in the performance data (also referred to as song data) Dt of a previously designated song. Compared with the parent part performance information Dp, the progress of the music data reproduction is controlled. Further, by playing back the child part performance information Dc in the music data Dt that is controlled in this way, a performance guide for a child user who performs in the child area Rc is performed. For this reason, the parent / child user operates the setting operator 17 prior to performance to select a song and designate a part. That is, the performance data of the desired music to be played from the plurality of performance data (for example, standard MIDI files) stored in the storage device such as the ROM 3 or the external storage device 4 by the music selection operation. Dt is selectively designated, and the designated performance data Dt is loaded into a performance data storage unit D provided in the RAM 2 of the electronic music apparatus. Then, by the part designation operation, one parent part and one child part are designated from among a plurality of parts constituting the performance data Dt. In addition, a desired tone color, tone range, and localization may be set for each designated parent-child part.

  In the performance processing system of the first embodiment, as shown in FIG. 2, a performance operation unit A including a keyboard 15K that is divided into a parent key range Rp and a sub key range Rc, and a key press for each key of the keyboard 15K. A performance instruction unit B including a performance indicator 16 for instructing, a performance data storage unit D that stores performance data Dt used for reproduction, and a pitch value of key pressing information based on a key pressing operation of the keyboard 15K are determined in a predetermined split. A key range determination unit E that determines (determines) whether the key press information is a key press in the parent key range Rp or a key press in the child key range Rc, compared to the pitch value of the point, The parent side transpose unit (also referred to as a pitch conversion unit) FP for converting the pitch of the parent side pitch information based on the operation of the key in Rp, and the pitch information converted by the parent side transpose unit FP The parent side key press information including is compared with the parent part Dp in the performance data Dt, A comparison and reproduction control unit (also simply referred to as a comparison control unit) G for controlling reproduction of the performance data Dt based on the comparison result, and a performance data reading unit for sequentially reading performance data from the performance data storage unit D in accordance with the control of the comparison control unit G H, guide control unit J for controlling the performance indicator 16 for the child key range Rc according to the child part performance information Dc read from the performance data reading unit H, child side pitch information based on the operation of keys in the child key range Rc Child-side transpose unit (also referred to as a pitch conversion unit) FC for converting the pitch of the keyboard, child-side key press information including pitch information converted by the child-side transpose unit FC, and a performance data reading unit H A musical tone signal generator C for generating a musical tone signal based on the parent part performance information Dp and other part performance information De read out from. The key range determination unit E and the parent and child transpose units FP and FC function as a key pressing processing unit. The comparison and reproduction control unit G, the performance data reading unit H, and the guide control unit J perform reproduction processing. It functions as a part.

  The operation of the guide mode according to the first embodiment will be described with a specific example. The reproduction processing unit represents a current performance position in the performance data (music data) using a timer interrupt corresponding to the tempo. Advance the current position by a predetermined amount in order from the beginning of the song. The unit of the current position is represented by “measure / beat / clock”. The clock is a unit obtained by equally dividing one beat by a predetermined number. Here, one clock is processed as one corresponding to 1/96 beats.

  The reproduction processing unit reads and reads a performance event (referred to as MIDI event, including key-on / key-off type and pitch) corresponding to the current position from the specified performance data Dt by the performance data reading unit H. Based on the parent part performance information Dp and the other part performance information De in the performance event, a first reproduction process for instructing the tone signal generation unit C to generate a sound (generation of a tone signal) is performed. Further, based on the child part performance information Dc in the read performance event, a second reproduction process for instructing the performance instruction unit B to present the performance event to the child user is performed. Here, the presentation of the performance event means, for example, that when the LED 16L near the keyboard 15K is used as the performance indicator 16, the predetermined LED 16L is turned on. In proceeding with the first and second reproduction processes, the keyboard reads the latest performance event and its time information after the current position for the parent part Dp of the performance data Dt. It is compared with a key depression event based on a key operation in the 15K parent key range Rp.

  In the parent key range Rp, when the parent user plays the parent part Dp (performs a performance operation corresponding to the parent part Dp of the designated performance data Dt), the key press processing unit uses the key range determination unit E to The key range of the key pressing event by the key pressing operation of the user is determined. That is, referring to the key position of the key-press event (which is also the original pitch corresponding to the key in the normal mode), it is used as a predetermined split value [the value at which the key range is divided. For example, it is an operation in the parent key range Rp by comparing with the position of C3, F3, etc. in the normal mode that is almost the center of the keyboard 15K and is not split (the examples in FIGS. 3 and 4 are the latter = F3). Judge. In this way, the key range of the key pressing event by the key pressing operation of the parent user is determined, and if it is determined that the operation is in the parent key range Rp, the parent side transpose unit FP performs the operation in the parent key range Rp. The key-pressing event determined to be is transposed (pitch conversion) by a predetermined amount. This is so that the mid-pitch in the normal mode in which the key range is not divided is near the center of the parent key range Rp in the continuous mode in which the key range is divided, so that the pitch is aligned with the child key range Rc. To do. The key depression processing unit notifies the reproduction processing unit by temporarily holding the transposed key depression event, for example, in a buffer memory (referred to as a communication buffer) that can be referred to by the reproduction processing unit.

  Therefore, the playback processing unit compares the pre-read performance event of the parent part Dp with the key pressing event of the parent key range Rp notified from the key pressing processing unit with respect to both timing and pitch, and performs according to the comparison result. By controlling the progress of the reproduction of the data Dt, the performance data Dt is reproduced in accordance with the key depression of the parent user corresponding to the parent part Dp, and the first and second reproduction processes proceed. For example, if the timing of a key pressing event with the same pitch in the parent key range Rp is earlier than the time information of the pre-read performance event, the tempo is accelerated according to the degree of the speed, and the reproduction process is short according to the tempo. Update timer interrupt settings so that they occur frequently at intervals. On the other hand, if the timing of the key press event of the same pitch in the parent key range Rp is later than the time information of the pre-read performance event, the playback is temporarily stopped at the timing indicated by the time information of the pre-read performance event, and in the parent key range Rp The playback process is resumed at the timing when the parent side key pressing event occurs. Then, the tempo is reduced according to the degree of the delay, and the timer interrupt setting is updated so that the reproduction process is performed at a long interval according to the tempo.

  When a performance event is presented by the reproduction processing unit performing the second reproduction process, the child user knows which key should be depressed by presenting the performance event, and performs in the child key range Rc of the keyboard 15K. Perform the operation. In response to this performance operation, the key press processing unit uses the key range determination unit E to determine the key range of the key press event by the key press operation of the child user.

  That is, referring to the key position of the key depression event (original pitch corresponding to the key) and comparing this key position with the predetermined split value described above, it is determined that the operation is in the child key range Rc. . The key pressing processing unit further transposes (pitch conversion) the key pressing event determined to be an operation in the child key range Rc by the child side transposing unit FC by a predetermined amount. This is so that the mid-tone range in the normal mode in which the key range is not divided is aligned with the pitch of the parent key range Rp so that it is near the center of the child key range Rc in the continuous mode in which the key range is divided. To do. Based on the transposed key press event, the musical tone signal generation unit C is instructed to generate sound (generate a musical tone signal).

  In the performance processing system of the first embodiment, the performance processing in the guide mode described above can be performed according to the performance processing program. 5 and 6 are flowcharts showing the performance process in the guide mode according to the first embodiment of the present invention. The flowchart in the upper part of FIG. 5 shows the key pressing process [1 performed by the key pressing processing section of the first embodiment. The lower part of FIG. 5 and the flowchart of FIG. 6 represent the reproduction process [1] executed by the reproduction processing unit of the first embodiment.

  The key pressing process [1] is executed as an interrupt process every time the key pressing operation is performed, or when the key pressing operation is performed by checking whether the key pressing operation is performed at a sufficiently short interval of about 2 milliseconds. To be executed. When the key pressing process [1] starts, in the first step P11, the CPU 1 determines whether or not the key pressing position is the parent key range Rp by comparing the key pressing position with respect to the keyboard 15K with the split point value. If the key pressing position is in the parent key range Rp (P11 = YES), the process proceeds to step P12, and the pitch of the parent side key pressing information generated at this key pressing position is transposed for the parent key range ( (Pitch conversion). In subsequent step P13, the reproduction processing unit is notified of the transposed parent-side key press information. For example, the key pressing information is temporarily stored in the communication buffer so that it can be referred to in the reproduction process. And it returns to the original state.

  On the other hand, if it is determined in step P11 that the key pressing position is not the parent key area Rp but the child key area Rc (P11 = NO), the process proceeds to step P14, and the child side key pressing information generated at this key pressing position. Transpose (pitch conversion) for the pitch of the keyboard. Then, in the next step P15, the transposed child side key press information is sent to the tone signal generator C to instruct to generate a tone signal based on this information (that is, the child side key press information is instructed to sound. ), Return to the original state.

  The reproduction process [1] is repeatedly executed at a “bar / beat / clock” clock interval corresponding to the tempo by a timer interruption. For example, assuming that the clock resolution is 96 and the tempo is 120 bpm (beat per minute), the interval is about 5.2 milliseconds. Here, when the tempo is 60 bpm, the interval is about 10.4 milliseconds. When the reproduction process [1] starts, it is determined in the first step R1 whether or not the reproducing flag in the flag register indicating that the performance data Dt is instructed is TRUE.

  When it is determined in step R1 that the reproducing flag is TRUE (R1 = YES), first, in step R2, the current position is advanced by one clock. Next, in step R3, it is determined whether or not there is a performance event corresponding to the current position for the parent part Dp or other part De of the performance data Dt, and if there is a performance event for the parent part or other part of the current position ( R3 = YES), in step R4, a tone generation instruction is issued to the tone signal generator C so as to generate a tone signal based on this performance event. When it is determined that there is no performance event of any part at the current position (R3 = NO) or after the sound generation instruction at step R4, at step R5 (FIG. 6), the child part Dc of the performance data Dt is set to the current position. It is determined whether there is a corresponding performance event. If there is a child part performance event at the current position (R5 = YES), the performance indicator 16 is instructed to perform a performance guide based on this performance event in step R6.

  When there is no child part performance event at the current position (R5 = NO) or after the child part performance guide instruction at step R6, the latest performance event after the current position of the parent part Dp is prefetched at step R7. deep. In the next step R8, the key pressing processing unit notifies that the parent side key pressing information has occurred in the parent key range Rp, and the pitch of the parent side key pressing information is the same as the most recent parent part performance event. It is determined whether or not.

  If it is determined that the parent side key pressing information is generated and the pitch is the same as the latest parent part performance event (R8 = YES), in step R9, the time information and current position of the pre-read performance event are determined. From this, it is calculated how early the key depression in the parent key range Rp is. In the next step R10 (FIG. 5), the tempo is updated based on the value calculated in step R9, and the interrupt processing time interval is reset. For example, suppose that the resolution of the clock is 96, and the key depression is 24 clocks faster during playback at a tempo of 120 bpm. In this case, although one beat corresponds to 96 clocks, the tempo is multiplied by 96 / (96-24) because the key was pressed at a timing shorter by 24 clocks. As a result, the tempo becomes 160 bpm and the timer interruption interval of the reproduction process becomes about 3.9 milliseconds. Then, after resetting the interrupt process in step R10, the process returns to the original state.

  If it is determined in step R8 that no parent side key press information is generated, or if it is determined that the parent side key press information is generated but the pitch is different from the pre-read parent part performance event (R8 = NO) In step R11, it is determined whether or not the current position matches the time information of the performance event of the pre-read parent part Dp. If they do not match (R11 = NO), the sound generation timing of the pre-read parent part performance event is still in effect. Since it has not reached, it returns to the original state as it is (reproducing flag = TRUE).

  On the other hand, when the current position matches the time information of the pre-read parent part performance event (R11 = YES), the sound generation timing of the parent part performance event has been reached at the present time. It is assumed that the middle flag is switched to FALSE to instruct to stop reading the performance data Dt and wait for the key depression corresponding to the pre-read parent part performance event to be made in the parent key range Rp. Subsequently, in step R13, the delay time counter is reset and measurement of the performance delay time is started. And it returns to the original state.

  When it is determined in step R1 that the reproducing flag is not TRUE, that is, FALSE (R1 = NO), first, in step R14, the delay time counter is incremented (increased) by one. Next, in step R15, the key pressing processing unit notifies that the parent side key pressing information is generated in the parent key range Rp, and the latest parent part performance event in which the pitch of the parent side key pressing information is pre-read. It is determined whether or not they are the same. Here, when it is determined that the parent side key pressing information is not generated, or when it is determined that the parent side key pressing information is generated but the pitch is different from the pre-read parent part performance event (R15 = NO). Return to the original state.

  On the other hand, when it is determined that the parent side key pressing information is generated and the pitch is the same as the latest parent part performance event (R15 = YES), the process proceeds to step R16, and the time of the pre-read parent part performance event is reached. Based on the information and the delay time counter value, how much the key press in the parent key range Rp is delayed is calculated. Next, in step R17, after the flag being reproduced in the flag register is switched to TRUE, in step R10 described above, the tempo is updated based on the calculated value and the interrupt process is reset. For example, assuming that the clock resolution is 96, the key depression is delayed by 24 clocks during reproduction at a tempo of 120 bpm. In this case, since the key was depressed at a timing longer by 24 clocks, the tempo is multiplied by 96 / (96 + 24). As a result, the tempo becomes 96 bpm and the timer interruption interval of the reproduction process becomes about 6.5 milliseconds. After resetting the interrupt process, the process returns to the original state.

<1-1st Embodiment>
In the first embodiment, both the timing and the pitch are used to compare the key depression of the parent key range Rp and the reproduction of the parent part Dp of the performance data Dt in proceeding with the first and second reproduction processes. However, instead of this, the performance processing may be performed in the first to first embodiments by comparing only the timing. In the first to first embodiments, it is not necessary to adjust the pitch by adjusting the key pressing timing to the parent part Dp, so that it is not necessary to adjust the pitch. The first to first embodiments can be configured by simply deleting or changing the functions indicated by broken lines in FIGS. 2, 5, and 6 with respect to the configuration of the first embodiment.

  That is, in the first to first embodiments, it is not necessary to perform the transpose process for the performance operation in the parent key range Rp. Therefore, in the conceptual diagram of the first embodiment in FIG. The pitch conversion process can be omitted. In the flowchart, the transpose process in step P12 in the key press process [1] in FIG. 5 is not necessary. In the next step P13, the key press information generated in the parent key range Rp is not transposed. The reproduction processing unit is notified. Then, in the determination steps R8 and R15 indicated by the broken line in the reproduction process [1] in FIGS. 5 and 6, the determination is made only by the key press notification as in the step R8 ′ also indicated by the broken line at the upper right of the step R8. That is, it is changed so as to refer only to the key pressing timing, and the progress control of the reproduction process is made by comparing only the timing.

[Operation in performance conversion mode (second embodiment)]
In the performance processing system of the second embodiment, performance processing in the performance conversion mode can be performed according to the performance processing program. 7 to 9 are diagrams for explaining a performance processing system in a performance conversion mode according to the second embodiment of the present invention. The performance processing system according to the second embodiment of the present invention operates in the performance conversion mode and is represented by functional blocks shown in the conceptual diagram of FIG. In the performance conversion mode, the parent user among the parent and child users performs in the parent key range Rp, the child user performs in the child key range Rc, and actual performance information based on the parent user performance in the parent key range Rp is designated in advance. The progress of the music data reproduction is controlled by comparing with the parent part performance information Dp in the music performance data (music data) Dt. Further, by reproducing the child part performance information Dc in the music data Dt whose progress is controlled, the actual performance information based on the child user performance in the child region Rc is converted (modified), and the performance conversion information obtained by this conversion is converted. A musical sound signal is generated based on.

  For this reason, the parent / child user operates the setting operator 17 prior to the performance, selects the music and specifies the parts as in the first embodiment, and the performance data Dt of the designated desired music is played by the music selection operation. A parent part and a child part are designated one by one from among a plurality of parts that are loaded into the data storage unit D and constitute the performance data Dt by a part designation operation. However, as the child part Dc, not only a normal performance part but also a chord part can be designated. A normal performance part consists of a set of performance events (MIDI events, including key-on / key-off types and pitches) and their time information, and represents the performance of that part. The chord part is composed of a set of chord designation information such as Cmaj7 and D # m9 and its time information, and represents the time progression of the chord of the song.

  As shown in the conceptual diagram of FIG. 7A, the performance processing system of the second embodiment includes a performance operation unit A including a keyboard 15K divided into a parent key range Rp and a sub key range Rc, and a performance used for playback. A performance data storage unit D that stores data Dt, and a key range for determining whether key press information based on a key press operation on the keyboard 15K is due to key press in the parent key range Rp or key press in the child key range Rc Determination unit E, parent side and child side transpose units (pitch conversion units) FP, FC for converting pitches of parent side and child side pitch information based on key operations in parent key range Rp and child key range Rc, respectively A comparison and reproduction control unit (comparison and reproduction control unit) that compares the parent-side key press information whose pitch is converted by the parent-side transpose unit FP with the parent part Dp in the performance data Dt and controls the reproduction of the performance data Dt based on the comparison result. Comparison control unit) G, performance data controlled by the comparison control unit G Read out from the performance data conversion unit K and the performance data reading unit H for converting the child side key press information converted by the child side transpose unit FC in accordance with the child part performance information Dc read out from the reading unit H and the performance data reading unit H. The musical tone signal generator C generates a musical tone signal based on the parent part performance information Dp, the other part performance information De, and the child side performance information after performance conversion from the performance conversion unit K. Further, the key range determination unit E, the parent and child transpose units FP and FC, and the performance conversion unit K function as a key depression processing unit, and the comparison and reproduction control unit G and the performance data reading unit H perform reproduction processing. It functions as a part.

  The operation in the performance conversion mode according to the second embodiment will be described with a specific example. The playback processing unit uses a timer interrupt corresponding to the tempo to determine the current performance position in the performance data (song data). The current position shown is advanced by a predetermined amount in order from the beginning of the song. The unit of the current position is represented by “measure / beat / clock”. The clock is a unit obtained by equally dividing one beat by a predetermined number. Here, one clock is processed as one corresponding to 1/96 beats.

  The reproduction processing unit reads the performance event corresponding to the current position from the designated performance data Dt by the performance data reading unit H, and based on the parent part performance information Dp and the other part performance information De in the read performance events. Thus, a first reproduction process is performed to instruct the tone signal generation unit C to generate a sound (generate a tone signal). Further, the child part performance information (pitch information = “child part” or chord designation information = “code part”) Dc in the read performance event is used as “reference information” for performance conversion processing in the performance conversion unit K. As a second reproduction process temporarily stored in a predetermined buffer memory (referred to as a reference buffer). In proceeding with the first and second reproduction processes, the keyboard reads the latest performance event and its time information after the current position for the parent part Dp of the performance data Dt. It is compared with a parent side key pressing event based on a key operation in the 15K parent key range Rp.

  When the parent user plays the parent part Dp in the parent key range Rp of the keyboard 15K, the key pressing processing unit notifies the reproduction processing unit of the parent side key pressing event in the same procedure as in the first embodiment. In other words, the key range determining unit E determines the key range of the parent side key pressing event by the key pressing operation of the parent user, and the parent side that is determined by the parent side transpose unit FP to be the operation in the parent key range Rp. The key-press event is transposed (pitch conversion) by a predetermined amount so as to align with the child key range Rc, and the transposed parent-side key press event is temporarily held in the communication buffer.

  Therefore, as in the first embodiment, the playback processing unit displays both the pre-read performance event of the parent part Dp and the parent side key pressing event of the parent key range Rp notified from the key pressing processing unit in both timing and pitch. And the progress of the reproduction of the performance data Dt is controlled according to the comparison result, and the first and second reproduction processes are advanced. For example, if the parent side key pressing event timing is earlier than the time information of the pre-read performance event, the tempo is accelerated according to the earlier timing, and the reproduction processing is frequently processed at short intervals according to the tempo. , Update timer interrupt settings. Alternatively, if the timing of the parent side key pressing event is later than the time information of the pre-reading performance event, the playback processing is temporarily stopped at the timing indicated by the time information of the pre-reading performance event, and the playback processing is performed when the parent side key pressing event occurs. Is restarted, the tempo is lowered according to the slowness, and the timer interrupt setting is updated so that the reproduction process is processed at a long interval according to the tempo.

  When the reproduction processing unit performs the second reproduction process, the child part performance information (pitch information or pitch information) in the performance data Dt is used for performance conversion to the child side key pressing event in the child key range Rc of the keyboard 15K. Code designation information) Dc is temporarily stored in the reference buffer as reference information. On the other hand, when the child user performs a performance operation in the child key range Rc, the key pressing processing unit performs the child side pressing by the child user's key pressing operation by the key range determination unit E, as in the first embodiment. The key range of the key event is determined, and the child-side keystroke event determined by the child-side transpose unit FC to be an operation in the child key range Rc is transposed by a predetermined amount so as to be aligned with the parent key range Rp ( (Pitch conversion).

The key pressing processing unit further converts the transposed child side key pressing event by the reference information temporarily stored in the reference buffer by the performance conversion processing of the performance conversion unit K. Any one of the following (A) to (D) is adopted for this performance conversion:
(A) When the reference information is normal pitch information, if it matches (matches) the pitch of the transposed child-side key press event, it is sent to the musical tone signal generator C as it is and a sounding instruction is issued. If they do not match, they are filtered without being sent to the musical tone signal generator C, or a sound that makes a mistake is pronounced (pronunciation at a specific pitch or a specific tone).
(B) When the reference information is normal pitch information, the pitch of the child-side key press event is replaced with the pitch of the reference information and sent to the musical tone signal generation unit C to give a sound generation instruction (pronunciation of the model performance sound) ).
(C) When the reference information is chord designation information, the transposed child side key pressing event is a chord constituent sound or an available note corresponding to the chord designation information (although not necessarily a chord constituent sound, If it matches the pitch (which is not unnatural even if it is played), it is sent to the tone signal generator C as it is, and a sound generation instruction is given. If it does not match, it is filtered without being sent to the tone signal generator C.
(D) When the reference information is the chord designation information, if the transposed child side key press event matches the chord constituent sound or the available note corresponding to the chord designation information, the musical tone signal generator is left as it is. When the sound does not match, the pitch of the child-side key pressing event is changed to a chord constituent sound or an available note having the smallest pitch difference, and is sent to the musical tone signal generation unit C.
In the case of (C) and (D), the ROM 3 stores in advance a note comparison table describing chord constituent sounds or available notes corresponding to each chord designation information. By referring to the note comparison table, it is possible to determine whether or not the sound is a chord constituent sound or an available note.

  Next, the flow of performance processing in the performance conversion mode according to the second embodiment will be described with reference to the processing flows of FIGS. The flowchart of FIG. 7 (2) represents the key pressing process [2] executed by the key pressing processing unit of the second embodiment, and the flowcharts of FIGS. 8 and 9 are executed by the reproduction processing unit of the second embodiment. Reproduction processing [2] is represented.

  Similarly to the key pressing process [1], the key pressing process [2] is executed for each key pressing operation. When the process starts, in the first step P21, the CPU 1 determines that the key pressing position with respect to the keyboard 15K is the split point value. To determine whether it is the parent key range Rp. If it is the parent key range Rp (P21 = YES), in step P22, the sound of the parent side key pressing information generated at this key pressing position. Transpose the high for the parent key range (pitch conversion), and in step P23, temporarily store the transposed parent side key press information in the communication buffer, notify the playback processing unit, and return to the original state. .

  On the other hand, when it is determined in step P21 that the key pressing position is the child key range Rc (P21 = NO), the process proceeds to step P24, and the pitch of the child side key pressing information generated at this key pressing position is determined as the child key. In step P25, the reference information temporarily stored in the reference buffer is referred to. Based on this reference information, the transposed child-side key press information is converted into the above-described information. Performance conversion is performed in any one of (A) to (D). Then, in the next step P26, the performance-converted child side key press information is sent to the tone signal generator C to instruct the sound generation, and the process returns to the original state.

  Similarly to the playback process [1], the playback process [2] is repeatedly executed at a “bar / beat / clock” clock interval according to the tempo by a timer interrupt, and when the process starts, the first step S1 (FIG. 8) is performed. ), It is determined whether or not the playing flag is TRUE.

  When it is determined in step S1 that the playing flag is TRUE (S1 = YES), first, in step S2, the current position is advanced by one clock, and in the next step S3, the parent part Dp of the performance data Dt or others It is determined whether or not there is a performance event corresponding to the current position in the part De. If there is a performance event for any part in the current position (S3 = YES), a musical sound based on this performance event is obtained in step S4. The tone signal generation unit C is instructed to generate a signal so as to generate a signal. When there is no performance event at the current position (S3 = NO) or after the sound generation instruction at step S4, it is determined at step S5 whether or not there is a performance event corresponding to the current position at the child part Dc, and the child part performance is performed. If there is an event (S5 = YES), in step S6, this performance event is temporarily stored in the reference buffer as reference information so that it can be referred to from the key press processing unit.

  When there is no child part performance event at the current position (S5 = NO) or after the reference information storage process at step S6, the latest performance event after the current position of the parent part Dp is prefetched at step S7. . In the next step S8, the key pressing processing section notifies that the parent side key pressing information has occurred in the parent key range Rp, and the pitch of the parent side key pressing information is the same as the latest parent part performance event prefetched. In the following steps S9 to S13, processing similar to that in steps R8 to R13 (FIGS. 5 and 6) of the reproduction process [1] is performed.

  That is, when it is determined in step S8 that the parent side key press information is generated and the pitch is the same as the latest parent part performance event (S8 = YES), the time information of the pre-read performance event is determined in step S9. And the current position, the speed of the key press in the parent key range Rp is calculated, and in the next step S10, the tempo is updated based on the calculated value and the time interval of the interrupt processing is reset. . If it is determined in step S8 that the parent side key press information is generated and the pitch is not the same as the pre-read parent part performance event (S8 = NO), the current position is determined in step S11. Determines whether or not the time information of the performance event of the parent part Dp read in advance matches. If the current position matches the time information of the pre-read parent part performance event (S11 = YES), the playing flag is switched to FALSE in step S12, and the delay time counter is reset in step S13. After resetting the interrupt process in step S10, when it is determined in step S11 that the current position does not match the time information of the prefetch event (S11 = NO) or after the delay time counter reset in step S12, the original position is restored. Return to state.

  Also, when it is determined in step S1 that the flag during playback is not TRUE, that is, FALSE (S1 = NO), steps R14 to R17 (FIG. 5) of the playback process [1] are performed in the following steps S14 to S17. The same processing is performed.

  That is, in step S14, the delay time counter is incremented (increased) by 1, and in step S15, the key pressing processing unit notifies that the parent side key pressing information is generated in the parent key range Rp and the parent side pressing It is determined whether or not the pitch of the key information is the same as the most recently read parent part performance event, and if so (S15 = YES), in step S16, time information and delay time of the prefetch parent part performance event. Based on the counter value, the delay in key depression in the parent key range Rp is calculated. In step S17, the playing flag is switched to TRUE, and in step S10 described above, the tempo is calculated based on the calculated value. Update and reset interrupt handling. On the other hand, if it is determined in step S15 that the parent side key press information is generated and the pitch is not the same as the pre-read parent part performance event (S15 = NO), the process returns to the original state. .

<2-1st Embodiment>
In the second embodiment, both the timing and the pitch are used to compare the key depression of the parent key range Rp and the reproduction of the parent part Dp of the performance data Dt in proceeding with the first and second reproduction processes. However, instead of this, the performance processing may be performed in the 2-1 embodiment by comparing only with the timing. In the 2-1 embodiment, as with the 1-1 embodiment, since the reproduction process proceeds and the pitch does not need to be adjusted only by the parent user adjusting the key pressing timing to the parent part Dp, the performance technique is not yet matured. But you can easily enjoy the reverb. The second to first embodiments can be configured by simply deleting or changing the functions of the portions indicated by the broken lines in FIGS. 7 and 8 with respect to the configuration of the second embodiment.

  That is, in the 2-1 embodiment, since it is not necessary to perform the transpose process for the performance operation in the parent key range Rp, the transpose indicated by the broken line in the conceptual diagram of the second embodiment in FIG. The pitch conversion processing in the part FP can be omitted. In the flowchart, the transpose process in step P22 in the key press process [2] in FIG. 7 (2) is not necessary. In the next step P23, the key press information generated in the parent key range Rp is transposed. Without being notified to the reproduction processing unit. Then, in the determination steps S8 and S15 indicated by broken lines in the reproduction process [2] in FIG. 8, as in step R8 ′ (FIG. 6), the determination is made only by the key pressing notification, that is, only the key pressing timing is determined. It changes so that it may refer, and the progress control of reproduction | regeneration processing is a comparison of only a timing.

  In the second embodiment, the 2-1 embodiment, or the like, when (B) is adopted among the performance conversions (A) to (D) by the key press processing unit, the child side generated in the child key range Rc. The pitch of the key pressing event is not used because it is replaced with the pitch of the reference information. Therefore, in this case, the pitch conversion process in the transpose unit FC on the child key range side in FIG. 7A can be omitted, and the transpose process in step P24 [FIG. In the next step P25, the key press information generated in the child key range Rc is converted as it is without transposing.

[Operation in beat progression mode (third embodiment)]
In the performance processing system of the third embodiment, the performance processing in the beat progression mode can be performed according to the performance processing program. FIG. 10 is a conceptual diagram of a performance processing system in a beat progression mode according to the third embodiment of the present invention. In the beat progression mode, the parent user among the parent and child users performs the performance of pressing the beat in the parent key range Rp, and the performance data (song data) of the song designated in advance by the key pressing timing of the beat in the parent key range Rp. ) The playback progress is controlled for Dt. Further, by reproducing the child part performance information Dc in the music data Dt whose progress is controlled, a performance guide for the child user who performs in the child region Rc is performed. For this reason, the parent / child user operates the setting operator 17 prior to the performance, selects a song and designates a part in the same manner as in the first and second embodiments, and performs the performance data of the desired song designated by the song selection operation. Dt is loaded into the performance data storage unit D, and a parent part and a child part are designated one by one from a plurality of parts constituting the performance data Dt by a part designation operation.

  In the performance processing system of the third embodiment, as shown in the conceptual diagram of FIG. 10, a performance operation unit A including a keyboard 15K divided into a parent key range Rp and a child key range Rc, and a key press for each key of the keyboard 15K. A performance instruction unit B including a performance indicator 16 for instructing, a performance data storage unit D storing performance data Dt used for reproduction, and key depression information based on a key depression operation of the keyboard 15K is key depression in the parent key range Rp. The key range determination unit E for determining whether the key is pressed by the key range in the child key range Rc, and the key press timing of the beat by the key press in the parent key range Rp from the key range determination unit E Beat timing that variably sets the reference timing of beats under the control of the comparison and reproduction control unit (comparison control unit) G and comparison control unit G which controls the reproduction of performance data Dt based on the comparison result Controlled by setting unit L and comparison control unit G Play data reading unit H, guide control unit J for controlling the performance indicator 16 for the child key range Rc according to the child part performance information Dc read from the performance data reading unit H, the child side sound based on the key operation in the child key range Rc A transpose unit (pitch conversion unit) FC for converting pitch information to pitch information, child-side key press information including pitch information converted by the transpose unit FC, and a parent read from the performance data reading unit H A musical tone signal generation unit C that generates musical tone signals based on the part performance information Dp and other part performance information De is configured. The key range determination unit E and the transpose unit FC function as a key depression processing unit, and the comparison and reproduction control unit G, the beat timing setting unit L, the performance data reading unit H, and the guide control unit J include a reproduction processing unit. Function as.

  The operation of the beat progression mode according to the third embodiment will be described with a specific example. The playback processing unit uses a timer interrupt corresponding to the tempo to determine the current performance position in the performance data (song data). The current position shown is advanced by a predetermined amount in order from the beginning of the song. The unit of the current position is represented by “measure / beat / clock”. The clock is a unit obtained by equally dividing one beat by a predetermined number. Here, one clock is processed as one corresponding to 1/96 beats.

  The reproduction processing unit reads the performance event corresponding to the current position from the designated performance data Dt by the performance data reading unit H, and based on the parent part performance information Dp and the other part performance information De in the read performance events. Thus, a first reproduction process is performed to instruct the tone signal generation unit C to generate a sound (generate a tone signal). Further, based on the child part performance information Dc in the read performance event, the second instruction is performed to instruct the performance instruction unit B to present the performance event to the child user (for example, the LED 16L in the vicinity of the keyboard 15K is lit). I do. In proceeding with such first and second reproduction processes, the reference timing of the beat at which the current position reaches the beginning of the beat and the parent side key pressing event based on the key operation on the parent key range Rp of the keyboard 15K are shown. Compare the key pressing timing of the beat.

  The parent user presses the key for every beat against the parent key range Rp of the keyboard 15K. In other words, only the beat timing is used for later processing, and the pitch is not considered, so any key can be operated. On the other hand, the key press processing unit determines the key range of the key press event based on the key press operation for each beat by the parent user by the key range determination unit E, and is an operation in the parent key range Rp. The determined parent side key pressing event is temporarily held in the communication buffer, and the parent side key pressing event is notified to the reproduction processing unit.

  Accordingly, the reproduction processing unit compares the reference timing of the beat from the beat timing setting unit L with the key pressing timing of the beat by the parent side key pressing event in the parent key range Rp notified from the key pressing processing unit. According to the result, the progress of the reproduction of the performance data Dt is controlled to advance the first and second reproduction processes. Here, the beat reference timing is the timing when the current position reaches the beginning of the beat, as described above, for example, the timing when the clock digit of the current position becomes 000. And, for example, if the key pressing timing of the beat (timing of the key pressing event notification from the key pressing processing unit to the reproduction processing unit) is earlier than the reference timing of the beat (timing when the current position reaches the beginning of the beat). The timer interrupt setting is updated so that the tempo is increased according to the early degree and the reproduction process is frequently performed at short intervals according to the tempo. On the other hand, if the key pressing timing of the beat is later than the reference timing of the beat, the playback process is temporarily stopped at the reference timing, playback is resumed at the subsequent key pressing timing, and the tempo is reduced according to the slowness. The timer interrupt setting is updated so that the reproduction process is processed at long intervals according to the tempo.

  When a performance event is presented by the performance instruction unit B by the reproduction processing unit performing the second reproduction process, the child user performs a performance operation in the child key range Rc of the keyboard 15K according to the presentation of the performance event. In response to this performance operation, the key press processing unit uses the key range determination unit E to generate a key press event (similar to a MIDI event, including key-on / key-off type and pitch) by the key press operation of the child user. The key range is determined, and the transpose unit FC transposes (pitch conversion) the key depression event determined to be an operation in the child key range Rc by a predetermined amount. This is to make it easier to play by making the mid-tone range when the key range is not divided to be near the center of the child key range when the key range is divided. The key press processing unit further instructs the tone signal generation unit C to generate sound (generate tone signal) based on the transposed key press event.

  In the performance processing system of the third embodiment, the performance processing in the above-described beat progression mode can be performed according to the performance processing program. FIGS. 11 and 12 are flowcharts showing performance processing in the beat progression mode according to the third embodiment of the present invention. The flowchart at the top of FIG. 11 shows the key pressing process executed by the key pressing processing unit of the third embodiment [ 3], and the flowchart in FIG. 11 and the flowchart in FIG. 12 represent the reproduction process [3] executed by the reproduction processing unit of the third embodiment.

  Similarly to the key pressing processes [1] and [2], the key pressing process [3] is executed for each key pressing operation. When the process is started, in the first step P31, the CPU 1 determines the key pressing position with respect to the keyboard 15K. Then, by comparing with the split point value, it is determined whether or not it is the master key range Rp. Here, when the key pressing position is the parent key range Rp (P31 = YES), in step P32, the parent key pressing information generated at this key pressing position is temporarily stored in the communication buffer and notified to the reproduction processing unit. Return to the original state. On the other hand, when the key pressing position is in the child key range Rc (P31 = NO), the process proceeds to step P33, and the pitch of the child side key pressing information generated at this key pressing position is transposed (pitch conversion). Then, in the next step P34, the transposed child side key press information is sent to the musical tone signal generating unit C to instruct the sound generation, and the process returns to the original state.

  Similarly to the reproduction processes [1] and [2], the reproduction process [3] is repeatedly executed at a “bar / beat / clock” clock interval according to the tempo by a timer interruption. At T1, it is determined whether or not the playing flag is TRUE.

  When it is determined in step T1 that the playing flag is TRUE (T1 = YES), first, in step T2, the current position is advanced by one clock, and in the next step T3, the parent part Dp of the performance data Dt or others It is determined whether or not there is a performance event corresponding to the current position in the part De. If there is a performance event for any part in the current position (T3 = YES), a musical sound based on this performance event is obtained in step T4. The tone signal generation unit C is instructed to generate a signal so as to generate a signal. When there is no performance event at the current position (T3 = NO) or after the sound generation instruction at step T4, at step T5, it is determined whether there is a performance event corresponding to the current position in the child part Dc, and the child part performance is performed. If there is an event (T5 = YES), in step T6, the performance indicator 16 is instructed to perform a performance guide based on this performance event. When there is no child part performance event at the current position (T5 = NO) or after the child part performance guide instruction in step T6, the process proceeds to step T7 (FIG. 12), and the key press processing unit performs the master key range Rp. It is determined whether or not there is a notification that the parent side key press information has occurred.

  Here, when the parent side key pressing information is generated (T7 = YES), in step T8, how much the key pressing is advanced with respect to the head of the next beat is calculated based on the current position, and the next step T9. In FIG. 11, the tempo is updated based on the calculated value, and the time interval for interrupt processing is reset. If it is determined in step T7 that no parent side key pressing information is generated (T7 = NO), it is determined in step T10 whether or not the current position has reached the beginning of the beat. When the current position reaches the beginning of the beat (T10 = YES), the delay time counter is reset at step T11, and the reproducing flag is switched to FALSE at step T12. Then, after resetting the interrupt process in step T9, when it is determined in step T11 that the current position does not reach the beginning of the beat (T10 = NO) or after FALSE switching of the playing flag in step T12, Return to state.

  When it is determined in step T1 that the playing flag is FALSE (T1 = NO), the delay time counter is incremented (increased) by 1 in step T13, and in the next step T14, the key press processing unit. From this, it is determined whether or not there is a notification that the parent side key pressing information has occurred in the parent key range Rp. Here, when the master side key pressing information is generated (T14 = YES), in step T15, how much the key pressing is delayed with respect to the head of the beat is calculated based on the delay time counter value, and in step T16, After the reproducing flag is switched to TRUE, the tempo is updated based on the calculated value and the time interval of the interrupt processing is reset at the above-described step T9.

Note that the tempo update in step T9 can be performed in the same manner as described in the reproduction process [1]. For example, assuming that the clock resolution is 96, the tempo is 120 bpm (beat per
minute), the interval is approximately 5.2 milliseconds, and when the tempo is 60 bpm, the interval is approximately 10.4 milliseconds. Therefore, when the tempo is 120 bpm and the key is pressed 24 clocks early (T7 = YES → T8), the key is pressed at a timing that is 24 clocks short although one beat corresponds to 96 clocks. The tempo is multiplied by 96 / (96-24), so that the tempo becomes 160 bpm and the timer interruption interval of the reproduction process becomes about 3.9 milliseconds (T9). If the key depression is delayed by 24 clocks during playback at a tempo of 120 bpm (T14 = YES → T15), the key is depressed at a timing longer by 24 clocks, so the tempo is multiplied by 96 / (96 + 24). As a result, the tempo becomes 96 bpm, and the timer interruption interval of the reproduction process becomes about 6.5 milliseconds (T9).

<Third Embodiment>
In the third embodiment, in the second reproduction process, the child part performance information Dc in the performance data Dt is used as a key pressing guide, and a performance event for the child user is sent to the performance instruction unit B based on the child part performance information Dc. However, instead of this, as in the second embodiment, the child part performance information Dc is used for performance conversion of the child-side key pressing event, and the child part performance information (pitch information) is used. Thru | or chord designation | designated information) It is good also as a structure which performs a performance process in 3rd-1 embodiment by converting a child side key pressing event based on Dc. FIG. 13 shows a conceptual diagram of a performance processing system in a beat progression mode according to the 3-1 embodiment of the present invention.

  The relationship between the third embodiment (FIG. 10) and the 3-1 embodiment (FIG. 13) corresponds to the relationship between the first embodiment (FIG. 2) and the second embodiment (FIG. 7). That is, the third embodiment or the 3-1 implementation depends on whether the child part performance information Dc of the performance data Dt is used for the key pressing guide (J) or for the performance conversion (K) of the child side key pressing event. A performance processing system of a form can be constructed. In the performance processing system of the 3-1 embodiment, as shown in FIG. 13, instead of the performance guide control means J of the third embodiment, as described in the second embodiment, (A) to (D). There is provided performance conversion means K for performing performance conversion of the child side key press event by any one of the methods. As a result, the parent user presses the beat in the parent key range Rp, and the progression of the song by the performance data (song data) Dc is controlled at the key pressing timing of this beat, and the child part performance information (pitch of the song data Dt) (Information = “child” or chord designation information = “code”) The performance by the child user in the child key range Rc is converted according to the reproduction of Dc, and the tone signal generator C generates a sound based on the converted performance information. The

  In the third embodiment and the 3-1 embodiment described above, the beat timing is set to one beat, that is, a quarter note unit, but may be a half note unit or an eighth note unit.

[Various Embodiments]
As mentioned above, although main embodiment was described, a form can be deform | transformed further as needed and various embodiment can be constructed | assembled. FIG. 14 is a diagram for explaining various embodiments of the present invention. For example, in the first and first to first embodiments (guide mode), the performance operation in the parent key range Rp is not directly used to generate a musical sound signal. As shown in the embodiment (guide mode), the musical tone signal may be directly generated by the performance operation of the parent key range Rp. Alternatively, as shown in the first to third embodiments (guide mode) of FIG. 14 (2), a musical sound signal is directly generated by a performance operation of the parent key range Rp, while the parent part performance information Dp of the performance data Dt is generated. The musical tone signal based may be modified so as not to be generated. The parent-side transpose unit EP indicated by a broken line in each figure can be omitted when the first to first embodiments are modified. Such a modification can also be applied to the second and 2-1 embodiments (performance conversion mode).

  Furthermore, the performance guide function (J) and the performance conversion function (K) by reproducing the performance data Dt may be used in combination. For example, combining the first embodiment (guide mode) and the second embodiment (performance conversion mode), or combining the third embodiment and the 3-1 embodiment, while instructing key depression by the guide control unit J The child side key press information is converted by the performance conversion unit K with the child part performance information Dc to generate a musical sound signal.

[Various Embodiments]
While the preferred embodiments of the present invention have been described with reference to the drawings, the present invention can be variously modified without departing from the spirit of the invention. For example, in each embodiment, an electronic musical instrument is described as a combination of an electronic performance guide function or an electronic automatic performance function with an electronic musical instrument. However, an electronic pitch information detection function, a performance guide function, A combination of a natural automatic performance function with a natural instrument such as a piano may be used as an electronic music device.

  For key division, for example, a key is formed formally by providing a dead zone that is not included in any key range between the parent key range and the child key range and is not involved in musical tone generation or performance instruction. Three or more area divisions may be used. Further, it is not necessary to limit which key range is for the parent user and which key range is for the child user. For example, the bass key range may be on the child side.

  You may comprise so that a parent user and a child user may play one part of performance data (Dt) by unison. Further, based on the parent part performance information (Dp), a performance guide (including musical score display) for the parent user (parent key range) may be instructed.

As for the performance guide mechanism, examples of visual control for controlling lighting of the LED near the keyboard, lighting of the key to be pressed, and display of the keyboard image and the staff score image on the display are shown. It may be mechanically controlled by vibrating itself or slightly sinking.
It should be noted that these performance guides do not give a performance instruction at the timing when the key should be pressed, but may start the performance instruction a predetermined time (for example, half a beat) earlier than the timing at which the key should be pressed. Good. In the embodiment, only the timing to press the key is instructed, but the timing to release the key may be indicated in another manner.

It is a hardware block diagram of the electronic music apparatus by one Example of this invention. 1 is a conceptual diagram of a performance processing system according to a first embodiment of the present invention. FIG. 2 is an external view [1] of a performance operation and an instruction unit according to an embodiment of the present invention. FIG. 3 is an external view explanatory view [2] of a performance operation and an instruction unit according to an embodiment of the present invention. It is a part of guide mode processing flow by 1st Embodiment of this invention. It is another part of the guide mode processing flow by 1st Embodiment of this invention. It is explanatory drawing [the 1] of the performance process by 2nd Embodiment of this invention. It is explanatory drawing [the 2] of the performance process by 2nd Embodiment of this invention. It is explanatory drawing [the 3] of the performance process by 2nd Embodiment of this invention. It is a conceptual diagram of the performance processing system by 3rd Embodiment of this invention. It is a part of beat progress mode processing flow by 3rd Embodiment of this invention. It is the other part of the beat progress mode processing flow by 3rd Embodiment of this invention. It is a conceptual diagram of the performance processing system by 3rd-1 embodiment of this invention. It is a figure for demonstrating various embodiment of this invention.

Explanation of symbols

A, B, C Performance operation section, performance instruction section and musical sound signal generation section,
15K keyboard,
16L, 16E, 16D Performance guide LED lamp, built-in LED and display,
Rp, Rc Parent key area (parent key area) and child key area (child key area)
D, G, H performance data storage unit, comparison and reproduction control unit, performance data reading unit,
F: FP, FC transpose part (pitch conversion part),
J, K, L Guide control unit, performance conversion unit (performance modification unit) and beat timing setting unit.

Claims (4)

A keyboard comprising a plurality of keys and having a first key range and a second key range;
Performance data storage means for storing performance data of a plurality of parts including performance data of the first part corresponding to performance in the first key range and performance data of the second part corresponding to performance in the second key range;
First key pressing detecting means for detecting a key operation in the first key range and outputting first key pressing information;
Second key press detection means for detecting a key operation in the second key range and outputting second key press information;
Performance data reading means for reading performance data of the first part or performance data of the second part from the performance data storage means in accordance with the first key pressing information;
First musical sound signal generating means for generating a first musical sound signal based on the performance data of the first part read by the performance data reading means;
A performance guide instruction means for instructing a performance guide based on the performance data of the second part read by the performance data reading means;
An electronic music apparatus comprising: a second musical sound signal generating means for generating a second musical sound signal based on the second key pressing information. further,
2. The electronic music apparatus according to claim 1, further comprising a part designating unit for designating the performance data of the first part and the performance data of the second part from the performance data of a plurality of parts.   The second musical tone signal generating means converts the second key pressing information according to the performance data of the second part read by the performance data reading means, and generates the second musical tone signal based on the converted second key pressing information. The electronic music apparatus according to claim 1 or 2, characterized in that: A keyboard composed of a plurality of keys and having a first key range and a second key range, performance data of the first part corresponding to the performance in the first key range and performance of the second part corresponding to the performance in the second key range A computer having performance data storage means for storing performance data of a plurality of parts including data, and a musical sound signal generating means, and functioning as an electronic music device,
A first key press detecting step of detecting a key operation in the first key range and outputting first key press information;
A second key pressing detecting step of detecting a key operation in the second key range and outputting second key pressing information;
A performance data reading step of reading performance data of the first part or performance data of the second part from the performance data storage means in accordance with the first key pressing information;
A first tone signal generation control step for causing the tone signal generation means to generate a first tone signal based on the performance data of the first part read in the performance data reading step;
A performance guide instruction step for instructing a performance guide based on the performance data of the second part read in the performance data reading step;
A performance processing program for executing a procedure comprising a second musical tone signal generation control step for causing the musical tone signal generating means to generate a second musical tone signal based on the second key pressing information.

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