JP4548365B2 - Music score display apparatus and program - Google Patents

Description

  The present invention relates to a score display device and a program for displaying a score. In particular, the present invention relates to a score display apparatus and a program for displaying a chord on a score as chord input information for automatic accompaniment.

In an electronic keyboard instrument having an automatic accompaniment function, an automatic accompaniment is provided on a musical score displayed on a display composed of, for example, a liquid crystal display panel (LCD) or a CRT so that the performer can easily perform automatic accompaniment. A chord name (for example, a chord name such as “C” or “Em7”) is displayed as the chord (chord) input information. That is, the performer presses a plurality of keys corresponding to the displayed chord names in a predetermined chord detection key area on the keyboard while watching the chord names displayed on the score. The accompaniment performance based on the chord can be automatically performed. In addition, as a performance aid for the performer, the constituent sound of each chord is displayed by the staff notation display or keyboard position display for the chord currently pressed by the performer and the chord that should be depressed. Conventionally, a technique for instructing how to hold a cord is known. For example, the technique described in Patent Document 1 shown below is an example.
JP-A-8-234738

  By the way, some users who use electronic keyboard instruments, etc., can't understand chords (in other words, they don't have enough knowledge about chords) and can read the score. Some users can press a key corresponding to a chord if the chord is displayed on the musical score (for example, a beginner whose chord name does not immediately reveal the chord sound). For such users, even if a chord name is displayed on the score as chord information for automatic accompaniment, it is not immediately known which key to actually press, so the chord for automatic accompaniment There was a problem that it was not appropriate to display the chord name on the score as input information. Also, in the past, only the constituent sound of the chord to be pressed next is displayed as the chord progresses, making it difficult for the performer to understand the key pressing timing for automatic accompaniment. . Therefore, it has been desired to provide a player with easy-to-understand chord input timing. However, a musical tone display apparatus and program for performing such display have not yet been proposed.

  The present invention has been made in view of the above points, and an object is to provide a musical score display apparatus and a program for performing code display that allows a user who does not understand the chords to input chords. To do.

A score display apparatus according to the present invention includes a setting means for selectively setting a score display of either a left-hand part score or a chord score, a performance means for generating performance information in response to a performance operation by a user, and a music piece for a left-hand part Based on the acquisition means for acquiring the progression information and the chord progression information indicating the chord progression of the music, and determining the pitch of one corresponding to the root of each chord based on the obtained chord progression information, And determining means for determining a plurality of pitches other than the root sounds determined according to the left-hand part score data in accordance with the left-hand part music progression information when the set score is a left-hand part score. on the other hand, when the set score is encoded spectrums to generate a musical score data code score for score display the one or chord progression order multiple pitch was determined for each code A generation unit, the left-hand Parts or in accordance with any of the score display setting code notation, the left-hand Parts the set score is based on score data of the left hand Parts said generated when a left-hand Parts, or the display means for displaying one of the musical score based wolfberry over de score in the musical score data code notation said generated when the set score is encoded notation, corresponding to the musical score display of the left-hand parts Musical tone control for generating a single tone corresponding to the performance information generated from the performance means according to the performance operation, and automatic accompaniment based on the performance information generated from the performance means according to the performance operation according to the score display of the chord score A musical tone control means for performing a musical tone control for generating a musical tone of a chord by the musical tone control means, wherein the musical tone control means is a score display setting of either the left hand part score or the chord score Thus comprises a one run by switching the tone control.

  As a preferred embodiment of the present invention, the musical score display device has a data acquisition means for acquiring automatic performance data including at least each performance information of the melody part and accompaniment part, and the melody part is scored based on the acquired automatic performance data. Music score data generating means for generating musical score data of melody music to be displayed and musical score data of accompaniment parts for displaying musical accompaniment parts, and selecting means for selecting either the generated chord music or the generated accompaniment part music And the display means generates the melody score generated based on the score data of the chord score or the score data of the accompaniment part corresponding to one of the chord score and the accompaniment part score selected by the selection means. The chord score or accompaniment data score along with the melody score based on the score data And butterflies.

According to the present invention, it is possible to selectively set the score display of either the left hand part score or the chord score, and when set to display the chord score , based on the chord progression information indicating the chord progression of the music Then, one pitch corresponding to the root of each chord and a plurality of pitches other than the root determined according to the configuration of each chord are determined, and the determined 1 corresponding to each chord in order of chord progression Or display multiple pitches. On the other hand, when it is set to display the left hand part score, the left hand part score is displayed based on the score data of the left hand part score generated according to the music progression information of the left hand part. In addition, the musical tone control for generating a single musical tone corresponding to the performance information generated according to the performance operation by the user in accordance with the musical score display of the left hand part score, triggered by the score display setting of either the left hand part score or the chord score And musical tone control for generating a musical tone of a chord by automatic accompaniment based on performance information generated in accordance with a performance operation by a user according to the score display of the chord score. That is, when the chord score is set to be displayed from the display of the left hand part score, for each chord based on the chord progression information indicating the chord progression of the music, one pitch corresponding to the root of each chord and each chord The chord score developed to a chord composition sound composed of a plurality of pitches other than the root note determined according to the chord composition is displayed , and the performance is controlled from the tone control for generating a single tone corresponding to the performance information. A musical tone is generated by switching to a musical tone control that generates a chord musical tone by automatic accompaniment based on information. In this way, Yu over The look at whether the score being displayed is the code notation that expand or chord member is a left-hand part notation, manual performance operation that is required in the case of the left hand Parts chord progression information appropriate code input operation regarding the code based on the like, musical separately required performance operation of distinguish according to music mode in the display for or automatic accompaniment required when encoding a notation It becomes possible to carry out easily without switching the control .

  The present invention may be constructed and implemented not only as an apparatus invention but also as a method invention. Further, the present invention can be implemented in the form of a program of a processor such as a computer or a DSP, or can be implemented in the form of a storage medium storing such a program.

  According to the present invention, the chord can be well understood because the chord is developed into chord constituent sounds composed of one or more pitches based on the chord progression information indicating the chord progression of the music. Even if there is no user, it is possible to appropriately perform chord input for automatic accompaniment by looking at the score display.

  Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

  FIG. 1 is a hardware configuration block diagram showing the overall configuration of an electronic keyboard instrument to which a score display apparatus according to the present invention is applied. The electronic keyboard instrument shown in this embodiment is controlled by a microcomputer comprising a microprocessor unit (CPU) 1, a read only memory (ROM) 2, and a random access memory (RAM) 3. The CPU 1 controls the operation of the entire electronic keyboard instrument. To this CPU 1, the ROM 2, RAM 3, detection circuits 4 and 5, display circuit 6, tone generator circuit 7, effect circuit 8, external storage device 10, MIDI interface (I / F) 11 and the like are connected to the CPU 1 via the data and address bus 1D. Communication interfaces (I / F) 12 are connected to each other. Further, the CPU 1 is connected to a timer 1A for measuring the interrupt time and various times in the timer interrupt process (interrupt process). For example, the timer 1A generates a clock pulse, and gives the generated clock pulse to the CPU 1 as a processing timing command or to the CPU 1 as an interrupt command. The CPU 1 executes various processes according to these instructions.

  The ROM 2 stores various programs executed by the CPU 1 and various data. The RAM 3 is used as a working memory that temporarily stores various data generated when the CPU 1 executes a predetermined program, or as a memory that stores a currently executed program and related data. A predetermined address area of the RAM 3 is assigned to each function and used as a register, flag, table, memory, or the like. The performance operator 4A is, for example, a keyboard provided with a plurality of keys for selecting the pitch of a musical tone, and has a key switch corresponding to each key. The keyboard or the like) can be used for inputting a chord for manual performance and automatic accompaniment by the user's own playing, and can also be used as an input means for selecting a song to be played. The detection circuit 4 generates a detection output by detecting the pressing and release of each key of the performance operator 4A.

  The setting operation element (switch or the like) 5A includes, for example, a song selection switch for selecting a song to be played (specifically, automatic performance data), a performance start switch for instructing start of performance, and a “musical score for right hand part” (for example, a melody score). In addition to the above, the left hand that indicates whether to display “automatic accompaniment chord holding method (called chord score)” or “left hand part score (called left hand score or accompaniment part score)” on the display 6A There are a part display switch, a chord simplification switch for instructing whether or not to display chords in a simplified manner, an accompaniment selection switch for selecting an accompaniment pattern as a source of automatic accompaniment, and the like. Of course, in addition to these, a numeric keypad for inputting numeric data, a keyboard for inputting character data, and a predetermined pointing device displayed on the display 6A, which are used for selecting, setting and controlling the pitch, tone color, effect, etc. Various operators such as a mouse used for operation may be included. The detection circuit 5 detects the operation state of each switch and outputs switch information corresponding to the operation state to the CPU 1 via the data and address bus 1D. In this embodiment, the “melody score” is a score indicating performance information for the melody part that is composed of only one line of the staff in the high range indicated by the “g clef”. The “left hand score (accompaniment part score)” is a score indicating performance information for an accompaniment part that is composed of only one line of the staff in the low range indicated by the “symbol”. The “chord score” is a score indicating chord input information for automatic accompaniment that is composed of only one line of the staff in the low range indicated by “H clef”.

  The display circuit 6 displays a list of songs (automatic performance data) that can be designated as performance songs on a display 6A constituted by, for example, a liquid crystal display panel (LCD), a CRT, etc. A score (see FIG. 6 to be described later) including upper and lower two levels including “code score” or “left hand score” is displayed, or the control state of the CPU 1 is displayed. By referring to these various information displayed on the display 6A, the user can select, for example, a performance piece (automatic performance data), a melody score, and the type of musical score to be displayed on the display 6A (for example, chord score or Various selection / setting operations such as setting of any of the left hand staves, and music performance operations such as melody and accompaniment can be easily performed. The tone generator circuit 7 can simultaneously generate musical tone signals on a plurality of channels, and is generated in accordance with the operation of the performance operator 4A by the user, which is given via the data and address bus 1D, or accompaniment pattern data. Various performance information generated based on the performance information is input, and a musical tone signal is generated based on the performance information. The musical sound signal generated from the sound source circuit 7 is given an effect via the effect circuit 8 and is generated from the sound system 9 including an amplifier and a speaker. Any conventional configuration may be used for the sound source circuit 7, the effect circuit 8, and the sound system 9. For example, the tone generator circuit 7 may employ any of various tone synthesis methods such as FM, PCM, physical model, formant synthesis, etc., or may be configured with dedicated hardware, or configured with software processing by the CPU 1. May be.

  The external storage device 10 stores various data such as automatic performance data and accompaniment pattern data, and data related to control such as various control programs executed by the CPU 1. When no control program is stored in the ROM 2, the control program is stored in the ROM 2 by storing the control program in the external storage device 10 (for example, a hard disk) and reading it into the RAM 3. The CPU 1 can be operated in the same manner as in the case. In this way, control programs can be easily added and upgraded. The external storage device 10 is not limited to a hard disk (HD), but a flexible disk (FD), a compact disk (CD-ROM / CD-RAM), a magneto-optical disk (MO), a DVD (Digital Versatile Disk), etc. Any storage device may be used as long as the storage device uses various external storage media. Alternatively, a semiconductor memory such as a flash memory may be used.

  The MIDI interface (I / F) 11 inputs automatic performance data in MIDI format (for example, MIDI event data such as key press information) from another externally connected MIDI device 11A or the like to the electronic keyboard instrument, or This is an interface for outputting automatic performance data in MIDI format from the electronic keyboard instrument to another MIDI device 11A or the like. The other MIDI device 11A may be any device that generates MIDI data in response to a user's operation, and includes any type of operator such as a keyboard type, a stringed instrument type, a wind instrument type, a percussion instrument type, and a body-mounted type ( Alternatively, it may be a device). The MIDI interface 11 is not limited to the one using a dedicated MIDI interface, and the MIDI interface 11 is configured by using a general-purpose interface such as RS-232C, USB (Universal Serial Bus), IEEE1394 (I-Triple 1394). You may make it do. In this case, data other than MIDI event data may be transmitted and received simultaneously. When the general-purpose interface as described above is used as the MIDI interface 11, the other MIDI device 11A may be able to transmit and receive data other than the MIDI event data. Of course, the data format of the performance data is not limited to the data in the MIDI format, and may be in other formats. In this case, the MIDI interface 11 and the other MIDI device 11A are configured accordingly.

  The communication interface (I / F) 12 is connected to a wired or wireless communication network X such as a LAN, the Internet, or a telephone line, and is connected to the server computer 12A via the communication network X, and the server computer 12A. This is an interface for taking control programs or various data from the electronic keyboard instrument side. That is, when the control program and various data are not stored in the ROM 2 or the external storage device 10 (for example, hard disk), it is used to download the control program and various data from the server computer 12A. Such a communication interface 12 may include both of a wired interface and a wireless interface.

  The performance operator 4A is not limited to a keyboard instrument, but may be any type of instrument such as a stringed instrument, a wind instrument, or a percussion instrument. In addition, the performance operator 4A, the display 6A, the sound source circuit 7 and the like are not limited to being built in one device body, but each device is configured separately, and each device is connected using a communication means such as a MIDI interface or various networks. Needless to say, it may be configured to do so. Furthermore, the musical score display apparatus according to the present invention is not limited to the form of the electronic musical instrument as described above, and may be applied to any form of apparatus or device such as a personal computer, a karaoke apparatus, or a game apparatus.

  Next, control information used for generating a musical tone or displaying a musical score, which is stored in a predetermined file format such as SMF (Standard Midi File) in the ROM 2 or the external storage device 10 is conventionally known. The automatic performance data (also called song data) will be briefly described with reference to FIG. FIG. 2 is a schematic diagram showing an embodiment of the data structure of automatic performance data. However, here, an example is shown in which data for a plurality of parts (right-hand part (melody part) and left-hand part (accompaniment part)) is recorded in a mixed order of performance. Of course, the present invention is not limited to this, and a format in which data of each part is recorded independently for each part may be used.

  As shown in FIG. 2, the automatic performance data can be roughly divided into header chunk data and track chunk data. The header chunk data is data that needs to be set in advance for all the parts in advance. For example, a song name (song name information), a time signature (time signature information), a performance tempo (tempo information), and a data format format of the data (Format information) and the like are stored. On the other hand, the track chunk data stores various event data, which are the basis of musical tone generation or score display, in the order of performance progress. In the automatic performance data shown in FIG. 2, as various event data stored here, note-on information for instructing sound generation for each part, note-off information for instructing mute of music, and the like are exemplified. This event data is combined with timing information representing the event occurrence time. Further, at each timing, chord designation information indicating chord names in the order of chord progression is stored as necessary.

Here, the data that needs to be set in common for all the parts is arranged in the header chunk data. However, the present invention is not limited to this, and the data may be arranged at the head of the track chunk data. .
In the example shown in FIG. 2, the time information between the code designation information and the right-hand or left-hand note-on information to be processed at the same time is omitted.

  As is known in the art, the automatic performance data described above can also be used for displaying musical scores. For example, a time signature corresponding to a predetermined display position is displayed according to the time signature information, or a note symbol of an appropriate note type (for example, a quarter note, for example, according to timing information, note-on information, note-off information, etc. for each part) Or 16th note) is placed at an absolute display position from the beginning or bar line of the song, or a relative display position between adjacent note symbols and a display position indicating an appropriate pitch position. In this way, a score can be displayed for each part. In the musical score display device according to the present invention, the note symbols in the “melody score” are displayed according to the various event data of the right hand part, and the note symbols in the “left hand score” are displayed according to the various event data of the left hand part. Further, note symbols in the “chord score” are displayed according to the chord designation information (details will be described later).

  The format of the automatic performance data is the “event + absolute time” format in which the event occurrence time is expressed in absolute time within a song or measure, and the event occurrence time is expressed in terms of the time from the previous event. “Event + relative time” format, “pitch (rest) + note length” format that represents performance data in terms of note pitch and note length or rest and rest length, for each minimum performance resolution Any format may be used, such as a “solid method” format in which an area of memory is secured and an event is stored in a memory area corresponding to the time at which a performance event occurs. Also, on the memory, time-series automatic performance data may be stored in a continuous area, or the automatic performance data that is scattered and stored in the skipped area is separately managed as continuous data. May be. That is, it is only necessary to be able to be managed as time-sequential continuous automatic performance data, and it does not matter whether it is stored continuously in the memory.

  The electronic keyboard instrument shown in FIG. 1 has an automatic accompaniment function, and a predetermined accompaniment according to the operation state of keys within a predetermined range (so-called chord detection key range) determined in advance on the keyboard (performance operator 4A). Accompaniment sounds based on the pattern data can be generated continuously, and an automatic accompaniment score (chord score) for automatic accompaniment is displayed on the display 6A. Therefore, the “main process” for performing such a musical score display and performance according to the operation of the performance operator 4A by the performer will be described with reference to FIG. FIG. 3 is a flowchart showing an example of “main processing”. However, here, processing after the performance music is selected by the user (song data corresponding to the RAM 3 is read from the ROM 2 or the external storage device 10 in response to the music selection operation) is shown. As an example of the score displayed on the display 6A, a case where a melody score is displayed in the upper row and a chord score or a left hand score is displayed in eight bars (see FIG. 6 described later) will be described as an example. The “main process” will be described below according to the flowchart shown in FIG.

  In step S1, it is determined whether or not the song data read into the RAM 3 includes “format information” (see FIG. 2) of a type indicating that the chord designation information is compatible. That is, it is determined whether or not the “code designation information” recorded in the song data is recorded in a data format that can be recognized by the electronic keyboard instrument. When it is determined that the format information of the type indicating that the code designation information is compatible is included (YES in step S1), the code automatic discrimination flag is set to “off” (step S2). . On the other hand, if it is determined that the format information of the type indicating compatibility is not included in the code designation information (or the case where such format information is not recorded in the first place) (step S1). NO), the code automatic discrimination flag is set to “ON” (step S3). This automatic chord discrimination flag is used to determine whether to use the chord progression information of the song data or the event information of the song data as information to be referred to when displaying the chord score (see FIG. 4), if the code specifying information includes format information indicating that the code specifying information is compatible, the code specifying information can be used as it is. If the format information indicating compatibility is not included, the chord designation information cannot be used with the musical instrument, so the setting is set to “ON”.

  In step S4, the left hand part display flag is set to “on” or “off” in accordance with the panel operation (left hand part display switch operation) by the performer. This left-hand part display flag is used to determine the type of musical score for left-hand performance to be displayed. When “Off” is set, “How to press chord for automatic accompaniment (chord score)” is set to “On”. "Left hand score (accompaniment part score)" is displayed in the case of "" (see step S24 in FIG. 4 described later). In step S5, the chord simplification designation flag is set to “on” or “off” in accordance with the panel operation (chord simplification switch operation) by the performer. This code simplification designation flag is used to designate whether or not a code having a difficult operation mode is simplified to a code having a simple operation mode. When the code is set to “ON”, the code is simplified. (See step S28 in FIG. 4 described later). When chords are simplified, notes are displayed on the chord score in a simplified manner of operation, and simplified by key operations according to the simplified manner of operation by the performer. An automatic accompaniment is made based on the constituent sound of the chord. In step S6, score data serving as the basis of the score displayed on the display 6A is generated. Detailed description of the musical score data generation will be described later (see FIG. 4 described later). In step S7, data of a portion corresponding to a range to be initially displayed on the display 6A (in this embodiment, 8 bars from the beginning of the song) is read out from the generated score data before the performance by the performer. Based on this, a score display screen (see FIG. 6) having a two-stage structure as described later is displayed on the display 6A.

  In step S8, the current position is set to the beginning of the song. A step S9 updates the current position display on the screen according to the set current position. As is known in the art, the current position is a portion of a song that is currently being played, and the current position moves sequentially in the song as the performance progresses. A display corresponding to the current position is displayed on the screen (see a performance instruction pointer P shown in FIG. 6 described later), and the current position display indicates the corresponding position on the screen in accordance with the movement of the current position. Updated to Therefore, the current position is displayed at the beginning of the song here. In step S10, it is determined whether or not a start operation has been performed in accordance with the operation of the performance start switch by the performer. When it is determined that the start operation has been performed (YES in step S10), the score display is updated in accordance with the progress of the current position (that is, the performance progress), or the performance according to the keyboard operation by the performer is performed. Execution of “processing” (see FIG. 5 described later) is permitted.

  The “music score data generation process” (see step S6 in FIG. 3) executed in the “main process” described above will be described with reference to FIG. FIG. 4 is a flowchart showing an example of the “music score data generation process”.

  In step S21, the score data is initialized by, for example, clearing the score data area. Step S22 corresponds to the upper (first) part and the lower (second) part of a two-stage score in which timing information and time information are read from the song data and the corresponding time signatures are arranged at appropriate positions. Each musical score data to be created is created. In step S23, timing information and note-on information / note-off information of the right-hand part are read out from the song data, and musical score data of the upper part of the score (ie, note symbols) relating to the right-hand part based on the timing information (that is, note data) Create a melody score) for the entire song. A step S24 decides whether or not the left hand part display flag is set to “ON”. If it is determined that the left-hand part display flag is set to “ON” (YES in step S24), the note-on information / note-off information of the left-hand part is read together with timing information from the song data, and the left hand based on this is read. The musical score data (that is, the left hand score) of the lower part of the score in which the note information (note symbols) relating to the parts is appropriately arranged is created over the entire music (step S34). In this case, the process ends here.

  If it is determined in step S24 that the left-hand part display flag is set to “OFF” (NO in step S24), it is determined whether or not the automatic code determination flag is set to “ON” ( Step S25). If the automatic chord discrimination flag is set to “ON” (YES in step S25), timing information and right-hand part note-on information / note-off information, left-hand part note-on information / note-off information from the song data Is read (step S26). Then, the chord is automatically determined from the read timing information and the note-on information / note-off information of the left and right parts, and the chord progression is generated and temporarily stored (step S27). Since a technique for automatically discriminating a chord from this note-on information / note-off information is known, a description thereof is omitted here. On the other hand, if the chord automatic discrimination flag is set to “OFF” (NO in step S25), timing information and chord designation information are read from the song data and temporarily stored as chord progression (step S33).

  A step S28 decides whether or not the code simplification designation flag is set to “ON”. When the chord simplification designation flag is set to “ON” (YES in step S28), each chord designated in the chord progression is determined in accordance with the temporarily stored chord progression as previously known. Is simplified based on the code conversion table (not shown) (step S29). For example, “C9 (C major)” code is simplified to “C (C major)” code and “C6 (C major 6th)” code is simplified to “Am7 (A minor 7th)” code. If a constituent sound from which a part of the chord constituent sound of the chord to be converted is a chord corresponding to another chord constituent sound, it is converted into the other chord. A step S30 selects the inversion form closest to the voicing of the immediately preceding chord in the chord progression order for each designated chord (including the simplified chord). That is, the chord composing sound is turned so that the chord composing sound to be presented is in a key pressing state close to the current key pressing state by the user. The processing relating to the turning may be any known method using a table. In step S31, each chord in the chord progression is developed into note information. That is, it develops into a plurality of note information (note symbols) composed of the constituent sounds of each chord. For example, in the case of a “C (C major)” chord, the chord information is expanded into “do”, “mi”, and “so” including the root note (root) as note information. Of course, the simplified code follows the simplified code. If the chord constituent sound is turned, the note information after the turn is followed. In step S32, based on the developed note information, score data of the lower part of the score (here, the chord score) where the notes are arranged is created over the entire song. The developed note information is information necessary for the player to specify a key to be pressed in order to perform automatic accompaniment.

  Next, the “interrupt process” (see step S11 in FIG. 3) in which the execution of the process is permitted in the “main process” described above will be described with reference to FIG. FIG. 5 is a flowchart showing an example of “interrupt processing”. The process is a process that is executed at predetermined time intervals (for example, 2 ms (milliseconds)) by a timer interrupt. Along with the execution, a performance and automatic accompaniment according to a performance operation by the performer are performed. The screen is displayed according to the performance progress. Here, the display of the melody score and chord score or left hand score will be described as an example in which the display is updated for each range corresponding to the four measures of the song.

  In step S41, it is determined whether or not the keyboard (performance operator 4A) has been operated by the performer. If it is determined that the keyboard has not been operated by the performer (NO in step S41), the process jumps to step S45. If it is determined that the keyboard has been operated by the performer (YES in step S41), the position of the operated key is within the lower key range (ie, within the chord detection key range) than the predetermined key split position. Is determined (step S42). Here, the key split position is an arbitrary position on the keyboard that divides the keyboard into two parts, the chord detection key range and the other key range, and the user can set the key split position to an arbitrary position. Yes. If it is determined that the position of the operated key is not within the chord detection key range (NO in step S42), the sound source circuit 7 is instructed to sound the right-hand part according to the performance operation (step S52). That is, if the performance operation is performed correctly along the score, the pronunciation according to the “melody score” displayed on the screen is performed.

  If it is determined that the position of the operated key is within the code detection key range (YES in step S42), it is determined whether the left hand part display flag is set to “ON” (step S43). If it is determined that the left hand part display flag is set to “ON” (YES in step S43), the sound source circuit 7 is instructed to sound the left hand part according to the performance operation (step S51). That is, if the performance operation is correctly performed, the pronunciation according to the “left hand score” displayed on the screen is performed. On the other hand, if it is determined that the left hand part display flag is set to “OFF” (NO in step S43), key operation information corresponding to the performance operation is notified to an accompaniment generation software module (not shown) to generate an accompaniment. The software module reflects it in the automatic accompaniment (step S44). This automatic accompaniment may be generated using accompaniment pattern data prepared in advance, for example, and chords using the constituent sounds of each chord in the chord progression information are placed in an appropriate range. It may be generated by an algorithm such as When using accompaniment pattern data prepared in advance, a plurality of types of accompaniment pattern data may be prepared according to at least the performance level.

  Step S45 advances the current position for a predetermined time. A step S46 updates the current position display on the screen in accordance with the advanced current position. In step S47, it is determined whether or not the current position has reached a preset score display update position (here, every four bars of the song). If it is determined that the current position has reached a predetermined score display update position (YES in step S47), a portion corresponding to the screen display range next to the current position is read from the score data, and the score is based on this. The display screen is updated and displayed (step S48). In step S49, it is determined whether or not the current position has reached the end of the song. If it is determined that the current position has reached the end of the song (YES in step S49), the automatic accompaniment and screen display are terminated by disabling interrupts (step S50).

  Next, the “score display screen” will be described. FIG. 6 is a conceptual diagram showing an example of a “music score display screen”. However, here, an example is shown in which a musical score composed of a two-stage structure of “melody score” and “code score” or “melody score” and “left hand score” is displayed for eight measures.

  The score display screens shown in FIGS. 6A and 6B include a song name (Etude1 in this case) M, a stave RS and LC (or LS) having a multi-tier structure (two-tier structure here), a chord name CD, and the like. The performance instruction pointer P is displayed. The song title M is a title given to the song realized by the automatic performance data displayed according to the song title information. The staff notation RS, LC (or LS) displays note information (note symbols) of a corresponding song based on automatic performance data for each predetermined song range. In this embodiment, for example, the note symbols from the 5th bar to the 8th bar are displayed in the upper half screen area, and the note symbols from the 9th bar to the 12th bar are displayed in the lower half screen area. The score is displayed separately.

The staff notation displayed in each screen area has a two-stage structure, and in the first staff notation, a score RS (that is, a melody score) composed of a note symbol O related to the right hand part of the automatic performance data is displayed. . The musical note symbol O displayed in the first row is displayed based on the performance event data of the right hand part. In addition, a chord name CD corresponding to the chord progression is displayed above the first stage staff (here CM7 ⁹ , FM7 ⁹ ). On the other hand, in the second staff notation, as shown in FIG. 6A, a score LC (that is, chord score) composed of note symbols OC in which each chord is developed according to chord progression is displayed. That is, the note symbol OC displayed in the second row is displayed based on the note information obtained by developing the chord corresponding to the chord name CD displayed above the first row of staffs (however, If it is simplified or turned, follow it). Further, in the second staff notation, as shown in FIG. 6B, a score LS (that is, a left hand score) composed of a note symbol OL related to the left hand part of the automatic performance data can be displayed. When the start of performance is instructed, a musical instruction symbol to be performed by the performer is indicated by a performance instruction pointer P that moves from left to right on the score as the performance progresses.

  In this way, if the player can read the notes displayed on the score, the chord name (second level) can be understood even if the chord name CD displayed on the melody score (first level notation) cannot be understood. Automatic accompaniment can be performed by operating the corresponding keys in accordance with the note symbols OC displayed on the staff. Since the chord score is displayed together with the melody score over a certain range of music, and the performance position is indicated by the performance instruction pointer P that moves as the performance progresses, the performer can play the melody part. At the same time, chord input for automatic accompaniment can be performed in a timely manner. Furthermore, since the chord is expanded into note information (note symbols) according to the chord designation information and the score can be displayed based on this, the “left hand score” can be stored in advance in the automatic performance data. This makes it easy to switch between the “left hand score” and the “code score” and display it conveniently.

In the above-described embodiment, the score data is generated all at once before the start of performance is instructed. However, the present invention is not limited to this, and the score in the range to be displayed next according to the progress of the song. Data may be generated sequentially. In such a case, the inversion type may be selected according to the key actually pressed by the performer immediately before generating the score data.
Note that the display form of the score displayed on the display 6A is not limited to the two-stage configuration described above. The display form of the score may be determined according to the size (size) of the display 6A. Further, the size (size) of the display 6A may be changeable by a user operation or the like, or may be fixed. The score of the left part and the score of the right part may be displayed separately on the left and right screens.

The musical score data may be any known data such as image data including a musical score or music symbols, or instruction data indicating a display position of a musical symbol event or a note event other than the musical score.
Note that the display of the score is not limited to the screen display on the display 6A as shown in the above embodiment, but may be displayed by printing on a medium such as paper.

1 is a hardware configuration block diagram showing an overall configuration of an electronic keyboard instrument to which a score display apparatus according to the present invention is applied. It is the schematic which shows one Example of the data structure of automatic performance data. It is a flowchart which shows one Example of a main process. It is a flowchart which shows one Example of a score data generation process. It is a flowchart which shows one Example of an interruption process. FIG. 6A is a conceptual diagram showing an example of a “score display screen”, in which FIG. 6A shows a staff score composed of “melody score” and “code score”, and FIG. 6B “melody score” and “left hand score”. Shows a staff notation consisting of.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... CPU, 2 ... ROM, 3 ... RAM, 4,5 ... Detection circuit, 4A ... Performance operator, 5A ... Setting operator, 6 ... Display circuit, 6A ... Display, 7 ... Sound source circuit, 8 ... Effect circuit, DESCRIPTION OF SYMBOLS 9 ... Sound system, 10 ... External storage device, 11 ... MIDI interface, 11A ... MIDI apparatus, 12 ... Communication interface, 12A ... Server computer, 1D ... Communication bus, X ... Communication network

Claims (6)

A setting means for selectively setting the score display of either the left-hand part score or the chord score;
Performance means for generating performance information in response to a performance operation by a user;
Acquisition means for acquiring the music progression information of the left hand part and the chord progression information indicating the chord progression of the music;
Determining means for determining one pitch corresponding to the root of each chord based on the acquired chord progression information, and determining a plurality of pitches other than the root determined according to the configuration of each chord;
When the set score is a left-hand part score, the score data of the left-hand part score is generated according to the music progression information of the left-hand part. On the other hand, when the set score is a chord score, each chord is generated. Generating means for generating score data of a chord score for displaying one or more pitches determined every time in the order of chord progression;
When the set score is a left-hand part score in accordance with the score display setting of either the left-hand part score or chord score, the left-hand part score based on the score data of the left-hand part score generated or the set score display means but receive either of the score of based wolfberry over de score in the musical score data code notation said generated when a code notation,
Musical sound control for generating a single tone corresponding to performance information generated from the performance means according to a performance operation corresponding to the score display of the left hand part music, and the performance means according to a performance operation corresponding to the score display of the chord score And a musical tone control means for generating a musical tone of a chord by automatic accompaniment based on performance information generated from the musical instrument, wherein the musical tone control means performs the musical tone according to the musical score display setting of either the left hand part score or the chord score. A musical score display device having a function to execute by switching control . Data acquisition means for acquiring automatic performance data including at least each performance information of the melody part and accompaniment part;
Musical score data generating means for generating musical score data of a melody score that displays a musical score of a melody part and musical score data of an accompaniment part score that displays a musical score of an accompaniment part based on the acquired automatic performance data;
Selecting means for selecting either the generated chord score or the generated accompaniment part score;
The display means is based on the score data of the chord score or the accompaniment part music corresponding to one of the chord score or the accompaniment part music selected by the selection means, and based on the generated score data of the melody score. The score display apparatus according to claim 1, wherein a chord score or an accompaniment data score is displayed together with a melody score. Further comprising generating means for automatically generating chord progression data in accordance with each performance information of the melody part and accompaniment part included in the acquired automatic performance data,
The acquisition means acquires the chord progression information when the chord progression information is included in the automatic performance data, while generating the chord progression information when the chord progression information is not included in the automatic performance data. 3. The musical score display apparatus according to claim 2, wherein chord progression data is acquired as the chord progression information. When the remaining component sound excluding a part of the chord component sound is a chord corresponding to the chord component sound of another chord, further comprising a chord conversion means for converting the chord to the other chord,
When the chord based on the acquired chord progression information does not correspond to the chord, the determining means determines the one or more pitches according to the chord, while the chord based on the obtained chord progression information is 4. The musical score display apparatus according to claim 1, wherein when the chord corresponds to a chord, the one or more pitches are determined according to the chord after the conversion.   The determining means refers to the immediately preceding chord in the chord progression order based on the chord progression information, obtains the inversion form of the chord having one or more pitches, and determines the inversion form of the obtained chord as the root of the chord. The score display apparatus according to any one of claims 1 to 4, wherein the musical score display device is determined as a plurality of pitches other than the root tone determined according to a pitch corresponding to a sound and a configuration of each chord. On the computer,
A procedure for selectively setting the score display of either the left-hand part score or the chord score;
A procedure for generating performance information in response to a user's performance operation;
A procedure for acquiring the music progression information of the left hand part and the chord progression information indicating the chord progression of the music;
A procedure for determining one pitch corresponding to the root of each chord based on the acquired chord progression information and determining a plurality of pitches other than the root determined according to the configuration of each chord;
When the set score is a left-hand part score, the score data of the left-hand part score is generated according to the music progression information of the left-hand part. On the other hand, when the set score is a chord score, each chord is generated. A procedure for generating score data of a chord score that displays one or more determined pitches in order of chord progression;
When the set score is a left-hand part score in accordance with the score display setting of either the left-hand part score or chord score, the left-hand part score based on the score data of the left-hand part score generated or the set score and procedures but displaying any of the score of based wolfberry over de score in the musical score data code notation said generated when a code notation,
Musical sound control for generating a single tone corresponding to the performance information generated according to the performance operation corresponding to the score display of the left hand part music, and the performance information generated according to the performance operation corresponding to the score display of the chord score A musical tone control that generates a musical tone of a chord by automatic accompaniment based on the method, wherein the procedure is executed by switching the musical tone control according to the score display setting of either the left hand part score or the chord score. Program to execute />.

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