JP5663948B2 - Music score display system - Google Patents

Description

  The present invention relates to a score display system capable of displaying a score.

  In recent years, an electronic musical instrument that can display a score on a liquid crystal display device disposed on the upper surface thereof has been proposed. In addition, the electronic musical instrument does not hold a large amount of musical score data in its storage device, but an electronic musical instrument (or a personal computer connected to the electronic musical instrument) is connected to a server (score distribution server) via a network such as the Internet. And a system for receiving desired musical score data has also been proposed.

JP 2001-265337 A JP 2003-208185 A

  For example, Patent Document 1 receives musical score data as image data of a musical score from a server and music data for automatic performance or so-called guide performance, and when the music data is reproduced, A technique for displaying a score including musical notes on a display device is disclosed.

  Further, Patent Document 3 is configured such that each of a plurality of performers can distribute a predetermined piece of music to each performer's terminal device by performing data communication with each other via a server. Disclosed techniques are disclosed.

  In the case of score distribution using the server, it is difficult to confirm the contents of the score in advance. For example, the electronic musical instrument asks the server to distribute the first page of the score as a trial, and the server transmits the data of the first page of the musical score to the electronic musical instrument, and on the screen of the display device of the electronic musical instrument, It is conceivable to display the first page. However, it is impossible to determine the difficulty level of the music piece by just looking at the score on the first page of the score (or any one page). In particular, in the case of a performer who is smaller in height and hand size than an adult such as an elementary school student, there are some that are very difficult to perform.

  Therefore, an object of the present invention is to provide a musical score display system capable of presenting music candidates having an appropriate difficulty level by inputting physical characteristics.

An object of the present invention is a score display system for displaying a score image based on score data for each song,
In the score data, for each song, a pedal difficulty indicating the difficulty of using a damper pedal for the song and a chord difficulty indicating a chord performance difficulty for the song are associated with each other,
Performer information receiving means for receiving height data indicating the height of the performer and pitch data indicating the degree of opening of the performer's fingers;
Pedal difficulty acquisition means for acquiring a pedal difficulty indicating the difficulty of using a damper pedal for the performer corresponding to the height data;
Chord difficulty acquisition means for acquiring a chord difficulty corresponding to the pitch data and indicating the difficulty of chord performance for the performer;
The pedal difficulty and chord difficulty for the performer are compared with the pedal difficulty and chord difficulty associated with each piece of music in the musical score data stored in the storage device, Music candidate selection means for selecting the matched music as a music candidate;
The musical score data of the predetermined music selected by the performer is read from the storage device from the music candidates selected by the music candidate selection means, and a score image based on the read musical score data is generated. A score image generating means for displaying on the display means,
This is achieved by a score display system comprising display means for displaying an image of the score.

In a preferred embodiment, the music candidate selection means has a pedal difficulty that is equal to or less difficult than the pedal difficulty for the player, and is equal to or less than a chord difficulty for the player. Select a song with a low difficulty chord difficulty.

  Further, in a preferred embodiment, the performer information receiving means accepts key press information obtained by pressing the keyboard with the performer opening his finger, and the difference between the highest sound and the lowest sound of the pressed key. Is acquired as pitch data.

In another preferred embodiment, the score display system comprises:
A client device comprising the display means, the player information accepting means and the score image generating means;
A score distribution server comprising the storage device, the pedal difficulty acquisition means, the chord difficulty acquisition means, and the music candidate acquisition means;
The client device and the score distribution server are connected by a data communication network.

  Further, in a preferred embodiment, the client apparatus includes an electronic musical instrument including a keyboard having a plurality of keys and a musical sound data generating unit that generates musical sound data of a musical sound according to the pitch of the pressed key. It is.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the score display system which can present the candidate of the music of an appropriate difficulty level by inputting a physical feature.

FIG. 1 is a diagram showing an external appearance of an electronic musical instrument according to the present embodiment. FIG. 2 is a block diagram showing the configuration of the electronic musical instrument according to this embodiment. FIG. 3 is a block diagram showing a configuration of a score distribution / display system including the electronic musical instrument according to the present embodiment. FIG. 4 is a flowchart showing an outline of processing executed by the electronic musical instrument according to the present embodiment. FIG. 5 is a flowchart showing an example of player information input processing according to the present embodiment. FIG. 6 is a flowchart showing an example of data communication processing with an electronic musical instrument in the score distribution server according to the present embodiment. FIGS. 7A and 7B are diagrams showing examples of a damper difficulty level conversion table and a chord difficulty level conversion table that constitute the conversion table group according to the present embodiment, respectively. FIG. 8 is a diagram showing an example of the data structure of the score data according to the present embodiment. FIG. 9 is a flowchart showing an example of keyboard processing according to the present embodiment. FIG. 10 is a block diagram showing a configuration of an electronic musical instrument system according to another embodiment of the present invention. FIG. 11 is a flowchart showing an example of player information input processing according to another embodiment.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a diagram showing an external appearance of an electronic musical instrument according to the present embodiment. As shown in FIG. 1, the electronic musical instrument 10 according to the present embodiment has a keyboard 11. In addition, on the upper part of the keyboard 11, various switch groups including a numeric keypad 12 and a display unit 14 including a liquid crystal display device are arranged. Various information such as musical scores and timbres of musical sounds to be generated can be displayed on the screen of the liquid crystal display device.

  FIG. 2 is a block diagram showing the configuration of the electronic musical instrument according to this embodiment. As shown in FIG. 2, the electronic musical instrument 10 according to the present embodiment includes a CPU 21, a ROM 22, a RAM 23, a sound system 24, a keyboard 11, an input unit 13, a display unit 14, and a communication interface (I / F) 15.

  The keyboard 11 has a plurality of keys, and the CPU 21 detects the on / off of the key and the key pressing speed (velocity) when the key is turned on. The input unit 13 includes a numeric keypad 12 and other various switch groups (for example, cursor keys). The input unit 13 includes a damper pedal (not shown) that the player steps on with his / her foot.

  The CPU 21 controls the electronic musical instrument 10 as a whole, detects keys pressed on the keyboard 11 and the operation of a switch (for example, the numeric keypad 12) constituting the input unit 13, controls the sound system 24 according to the operation of the keys and switches, Performing various processes such as a player information input process for inputting a musical score list and musical score data by inputting information relating to a player, which will be described later, and a data communication process with the musical score distribution server 30 (FIG. 2) via the communication I / F 15. Run.

  The ROM 22 performs various processes to be executed by the CPU 21, for example, control of the entire electronic musical instrument 10, detection of key depression of the keyboard 11 and operation of a switch (for example, the numeric keypad 12) constituting the input unit 13, Control of the sound system 24 according to the operation, a player information input process for acquiring a score list and score data by inputting information on a player to be described later, and a score distribution server 30 (FIG. 2) via the communication I / F 15 A processing program such as data communication processing is stored. The ROM 22 has a waveform data area that stores waveform data for generating musical sounds such as piano, guitar, bass drum, snare drum, and cymbal. The RAM 23 stores a program read from the ROM 22 and data generated in the course of processing. The RAM 23 stores score data and music data received via the communication I / F 15.

  The sound system 24 includes a sound source unit 26, an audio circuit 27, and a speaker 28. For example, when the tone generator 26 receives a note-on event for the depressed key from the CPU 21, the tone generator 26 reads predetermined waveform data from the waveform data area of the ROM 22, generates musical tone data of a predetermined pitch, and outputs it. . The sound source unit 26 can also output waveform data, particularly waveform data of percussion instrument sounds such as a snare drum, bass drum, and cymbal, as musical sound data. The audio circuit 27 D / A converts and amplifies the musical sound data. Thereby, an acoustic signal is output from the speaker 28.

  The communication I / F 15 performs data communication with the server 30 via the Internet 45 (FIG. 2) in accordance with an instruction from the CPU 21.

  FIG. 3 is a block diagram showing a configuration of a score distribution / display system including the electronic musical instrument according to the present embodiment. As shown in FIG. 3, the score distribution / display system 50 includes an electronic musical instrument 10 and a score distribution server 30. The electronic musical instrument 10 and the score distribution server 30 can perform data communication via the Internet 45. The score distribution server 30 includes a communication I / F 31 that controls data communication via the Internet 45, a control unit 32 that executes various processes in the musical sound distribution server 30, and a storage device 33 that stores various data. Yes.

  The storage device 33 stores musical score data 40, which is musical score data of various musical pieces, and musical piece data 41 for automatically playing the musical piece. The musical score data 40 of each music is added with a damper difficulty 42 indicating the difficulty of pressing the damper pedal in the music performance and a chord difficulty 43 indicating the difficulty of the chord to be played. The music data 41 has, for example, a note-on event for instructing sound generation at a predetermined pitch and a predetermined velocity, a gate time indicating a sound generation time, and a step time indicating a time interval until the next note-on event. ing. The damper difficulty level 42 and the chord difficulty level 43 will be described later. Note that a conversion table group 44 is provided in the storage device 33 for the damper difficulty and the chord difficulty.

  FIG. 4 is a flowchart showing an outline of processing executed by the electronic musical instrument according to the present embodiment. As shown in FIG. 4, when the power of the electronic musical instrument 10 is turned on, the CPU 21 of the electronic musical instrument 10 executes initialization processing including clearing the data in the RAM 23 and the image on the display unit 14 (step 401). When the initialization process (step 401) ends, the CPU 21 executes a player information input process (step 402).

  FIG. 5 is a flowchart showing an example of player information input processing according to the present embodiment. The CPU 21 determines whether or not a switch operation for performing player information setting has been performed in the input unit 13 (step 501). If it is determined No in step 501, the player information input process ends. If it is determined Yes in step 501, the CPU 21 determines whether there is a numeric keypad input by the performer (step 502). In the present embodiment, the performer inputs a number indicating the height using the numeric keypad.

  If it is determined as Yes in step 502, the CPU 21 stores the value input by the numeric keypad in the RAM 23 as height data. Next, the CPU 21 determines whether or not there is a key input by the performer (step 504). In the present embodiment, after the numeric keypad is input, the performer presses an arbitrary key with at least the thumb and the little finger with the finger open. The CPU 21 stores the difference (referred to as key interval) between the highest sound and the lowest sound of the pressed key in the RAM 23 as pitch data.

  Next, the CPU 21 transmits the height data and the pitch data to the score distribution server via the communication I / F 15 (step 505). FIG. 6 is a flowchart showing an example of data communication processing with an electronic musical instrument in the score distribution server according to the present embodiment. As shown in FIG. 6, when the communication I / F 31 of the score distribution server 30 receives the height data and the pitch data from the electronic musical instrument 10 (step 601), the control unit 32, based on the received height data, A damper difficulty level is acquired (step 602), and a chord difficulty level is acquired based on the received pitch data (step 603). For example, the conversion table group 44 is provided in the storage device 33 of the score distribution server 30, and the damper difficulty corresponding to the height data and the chord difficulty corresponding to the pitch data are obtained by referring to the table therein.

  FIGS. 7A and 7B are diagrams showing examples of a damper difficulty level conversion table and a chord difficulty level conversion table that constitute the conversion table group according to the present embodiment, respectively. As shown in FIG. 7A, in the damper difficulty level conversion table 700, ranges and pedal difficulty levels are associated with each range of height data. Further, as shown in FIG. 7B, in the chord difficulty conversion table 710, a range and a chord difficulty are associated with each range of pitch data (pitch difference in a key). In the present embodiment, each of the damper difficulty and the chord difficulty takes any value from “1” to “5”, and as the value increases, the difficulty of using the damper pedal, This indicates that the difficulty level of chords increases.

  Next, the control unit 32 searches the musical score data in the storage device 33, and the damper difficulty and the chord difficulty assigned to the music in the score data match the damper difficulty and the chord difficulty acquired in the above steps 602 and 603, respectively. A score title list listing the titles of the scores to be generated is generated (step 604). Music score titles listed in the music title list are music candidates.

FIG. 8 is a diagram showing an example of the data structure of the score data according to the present embodiment. As shown in FIG. 8, the score data 800 includes records including values indicating title, composer, damper difficulty, and chord difficulty in addition to image data (not shown) indicating an actual score (for example, reference numeral 810). 811). In search,
Pedal difficulty based on height data ≥ pedal difficulty of musical score data, and
It is only necessary to find a record of musical score data that satisfies the chord difficulty based on the pitch data ≧ the chord difficulty of the musical score data. The control unit 32 transmits a musical score title list in which music candidates are listed to the electronic musical instrument 10 via the communication I / F 31 (step 605).

  When the communication I / F 15 of the electronic musical instrument 10 receives the score title list, the CPU 21 displays an image including the received score title list on the screen of the display unit 14 (step 507). The performer refers to the score title list displayed on the screen of the display unit 14 and operates a switch (for example, a cursor key) of the input unit 13 to select a desired score title (Yes in step 508). When it is determined Yes in step 508, the CPU 21 transmits the selected score title to the score distribution server 30 via the communication I / F 15 (step 510).

  When the communication I / F 31 of the score distribution server 30 receives the score title from the electronic musical instrument 10 (step 606), the control unit 32 of the score distribution server 30 stores the score data having the selected score title from the storage device 33. The music data is read out and transmitted to the electronic musical instrument 10 through the communication I / F 31 (step 607). When the communication I / F 15 of the electronic musical instrument 10 receives the score data and the song data, the CPU 21 stores the score data and the song data in the RAM 23 and displays an image including the score based on the score data on the display unit 14. It is displayed on the screen (step 511).

  In step 508, if the player turns on the end switch of the input unit 13 when the score title is not selected (Yes in step 509), the player information input process ends. If the end switch is not turned on (No in step 509), the process returns to step 508 and waits for acceptance of the selection of the score title.

  When the performer information input process (step 402) is completed, the CPU 21 detects each operation of the switches constituting the input unit 13 (switch operation other than the switch operation related to the performer information input process), and the detected operation. The switch process for executing the process according to the above is executed (step 403).

  For example, in the switch process (step 403), various switch operations such as a tone color designation switch, a music score data designation switch stored in the RAM 23, and an automatic performance on / off designation switch for the selected music are detected. The The tone color designation information, the score designation information, and the automatic performance on / off designation information (automatic performance flag) are stored in a predetermined area of the RAM 23.

  Thereafter, the CPU 21 executes keyboard processing (step 404). FIG. 9 is a flowchart showing an example of keyboard processing according to the present embodiment. In the keyboard process, the CPU 21 scans the keys on the keyboard 11 (step 901). A key event (key on or off), which is a key scanning result, is temporarily stored in the RAM 23. The CPU 21 refers to the key scanning result stored in the RAM 23 and determines whether or not there is a new key event for a certain key (step 902). If it is determined Yes in step 902, the CPU 21 determines whether or not the new key event is key-on (step 903). If it is determined Yes in step 903, the CPU 21 uses the tone specified by the switch process to generate a musical tone having the pitch of the key on which the key has been turned on with the velocity of the key. An on event is generated and output to the sound source unit 26 (step 904).

  On the other hand, if NO in step 903, that is, if the new key event is key-off, the CPU 21 generates a note-off event for the key that has been key-off, and outputs the note-off event to the sound source unit 26 (step). 905). After steps 904 and 905, the CPU 21 determines whether the processing has been completed for all the keys (step 906). If the processing has not been completed (No in step 906), the CPU 21 returns to step 902. On the other hand, if it is determined YES in step 906, the keyboard process is terminated.

  When the keyboard process (step 404) ends, the CPU 21 executes an automatic accompaniment process (step 405). In the automatic accompaniment process, the following process is executed when the automatic performance is on (the automatic performance flag is “1”). The CPU 21 reads the music data stored in the RAM 23 based on the address information AD. Initially, the address information AD designates the beginning of music data.

  If the address information is a step time, the CPU 21 refers to a separately counted timer value to determine whether the step time has elapsed. If the step time has elapsed, the CPU 21 increments the address information AD. Then, the next note-on event is read from the RAM 23 and the note-on event is output to the sound source unit 26. Thereafter, the CPU 21 clears the timer and increments the address information AD.

  If the address information is the gate time, the CPU 21 refers to the timer value to determine whether the gate time has elapsed. If the gate time has elapsed, the CPU 21 determines the pitch to be note-off. A note-off event is generated for the musical sound and output to the sound source unit 26. Further, the CPU 21 increments the address information. In this manner, a note-on event and a note-off event are generated based on the music data stored in the RAM 23 and output to the sound source unit 26.

  Thereafter, sound generation processing is executed in the sound source unit 26 (step 405). In the sound generation process, the sound source unit 26 reads out the musical sound waveform data in the ROM 22 according to the tone color and pitch included in the note-on event based on each of the note-on events given from the CPU 21, and is included in the note-on event. Musical sound data is generated by multiplying the volume level based on velocity. The musical tone data generated by the sound source unit 26 is output to the audio circuit 27 and a predetermined musical tone is generated from the speaker 28. In the sound generation process, the sound source unit 26 mutes the musical sound instructed to mute based on each of the note-off events given from the CPU 21.

  When the sound generation process (step 406) ends, the CPU 21 executes a score display process (step 407). In the present embodiment, in the score display processing, it is desirable that the portion of the score displayed is updated as the performer performs. For example, the CPU 21 compares the new key-on event detected in the keyboard process with the note-on event of the music data, finds the currently played note in the music, and the image of the score including the note. Is generated and displayed on the screen of the display unit 14. After the score display process (step 407), the CPU 21 executes other processes (step 408) and returns to step 402. Other processing corresponds to, for example, processing related to communication via the communication I / F 15.

  In the present embodiment, the CPU 21 of the electronic musical instrument 10 acquires height data indicating the performer's height and pitch data indicating the degree of finger opening, and transmits the acquired pitch data to the score distribution server 30. The control unit 32 of the score distribution server 30 obtains a pedal difficulty indicating the difficulty of using the damper pedal for the performer corresponding to the received height data, and also performs a chord performance for the performer corresponding to the received pitch data. The chord difficulty level indicating the difficulty level is acquired. Further, the control unit 32 of the score distribution server 30 refers to the pedal difficulty and chord difficulty for the performer and the pedal difficulty and chord difficulty for the music in the storage device 33, and the pedal difficulty and chord difficulty for the performer. Are selected, a musical score title list of music candidates is generated, and transmitted to the electronic musical instrument 10. Further, the control unit 32 of the score distribution server 30 reads out the score data from the storage device based on the information of the selected music piece from the electronic musical instrument 10 and transmits it to the electronic musical instrument 10, and the electronic musical instrument 10 is displayed on the display unit 14. An image of a score is displayed on the screen.

  As described above, according to the present embodiment, based on the physical characteristics of the performer, the candidate is presented with suitable music candidates that are considered to be playable, and the score is provided. Is possible.

In the present embodiment, the control unit 32 of the score distribution server 30 has a pedal difficulty level equivalent to or lower than the pedal difficulty level for the performer, and is equivalent to a chord difficulty level for the performer. Or the music which has the chord difficulty level lower than that is selected as a music candidate. Thereby, the performer can know the music with the highest difficulty based on his / her physical characteristics and the music with a lower difficulty as music candidates.

  In the present embodiment, the CPU 21 of the electronic musical instrument 10 accepts key depression information obtained by depressing the keyboard 11 with the performer opening his finger, and calculates the difference between the highest tone and the lowest tone of the depressed key. Get as data. As a result, it is possible to obtain appropriate pitch data corresponding to the size of the performer's hand with a simple operation by the performer, and as a result, an appropriate chord difficulty can be obtained.

  Further, in the present embodiment, the electronic musical instrument 10 acquires the height data and the pitch data and transmits them to the score distribution server 30 via the Internet 40, and the control unit 32 of the score distribution server 30 performs the performance of the player. The pedal difficulty level based on the height data and the chord difficulty level based on the pitch data are acquired, a score title list including music candidates is generated, and transmitted to the electronic musical instrument 10. In addition, the score distribution server 30 transmits the score data of the selected music piece to the electronic musical instrument 10. Thus, the electronic musical instrument 10 does not need to store a large amount of score data in the internal storage device.

  The present invention is not limited to the above embodiments, and various modifications can be made within the scope of the invention described in the claims, and these are also included in the scope of the present invention. Needless to say.

  For example, in the embodiment described above, the electronic musical instrument 10 is configured to transmit height data and pitch data to the score distribution server 30 and be provided with score data and the like from the score distribution server. However, the present invention is not limited to this, and the electronic musical instrument 10 may be configured to hold score data. FIG. 10 is a block diagram showing a configuration of an electronic musical instrument system according to another embodiment of the present invention. As shown in FIG. 10, an electronic musical instrument 100 according to another embodiment includes a large-scale storage device 133 in addition to a CPU 21, a ROM 22, a RAM 23, a sound system 24, a keyboard 11, an input unit 13, and a display unit 14. doing. The large-scale storage device 133 stores the same data as the musical sound distribution server 30 shown in FIG. That is, the musical score data 40, the music data 41, and the conversion table group 44 are stored in the large-scale storage device 133. Although not shown, the score data 44 is given a damper difficulty level and a chord difficulty level for each piece of music.

  FIG. 11 is a flowchart showing an example of player information input processing according to another embodiment. The player information input process shown in FIG. 11 basically corresponds to the process shown in FIGS. 5 and 6 except for data transmission / reception. Steps 1101 to 1105 in FIG. 11 correspond to steps 501 to 506 in FIG. Steps 1106 to 1107 in FIG. 11 correspond to steps 602 to 603 in FIG.

  After step 1107, the CPU 21 searches the score data in the storage device 133, and the damper difficulty and chord difficulty assigned to the music in the score data match the damper difficulty and chord difficulty acquired in steps 1106 and 1107, respectively. A score title list listing the titles of the scores to be generated is generated, and the generated score title list is displayed on the screen of the display unit 14 (step 1108). The performer refers to the score title list displayed on the screen of the display unit 14 and operates a switch (for example, a cursor key) of the input unit 13 to select a desired title (Yes in step 1109). If it is determined Yes in step 1109, the CPU 21 reads the score data having the selected score title and displays an image including the score on the screen of the display unit 14 (step 1111). If the performer turns on the end switch of the input unit 13 when the result is No in step 1109 (Yes in step 1110), the performer information input process ends. Otherwise, the process returns to step 1109.

  Moreover, in the said embodiment, the electronic musical instrument 10 acquires height data and pitch data, transmits these data to the score distribution server 30, and the score distribution server 30 determines pedal difficulty based on the received height data. The chord difficulty level is acquired based on the received pitch data. However, the present invention is not limited to this, and the electronic musical instrument 10 may acquire the pedal difficulty and the chord difficulty and transmit the pedal difficulty and the chord difficulty to the score distribution server 30.

DESCRIPTION OF SYMBOLS 10 Electronic musical instrument 11 Keyboard 12 Numeric keypad 13 Input part 14 Display part 15 Communication I / F
21 CPU
22 ROM
23 RAM
24 Sound System 26 Sound Source 27 Audio Circuit 28 Speaker 30 Music Score Distribution Server 31 Communication I / F
32 Control unit 33 Storage device 40 Musical score data 41 Music data

Claims (5)

A score display system for displaying a score image based on score data for each song,
In the score data, for each song, a pedal difficulty indicating the difficulty of using a damper pedal for the song and a chord difficulty indicating a chord performance difficulty for the song are associated with each other,
Performer information receiving means for receiving height data indicating the height of the performer and pitch data indicating the degree of opening of the performer's fingers;
Pedal difficulty acquisition means for acquiring a pedal difficulty indicating the difficulty of using a damper pedal for the performer corresponding to the height data;
Chord difficulty acquisition means for acquiring a chord difficulty corresponding to the pitch data and indicating the difficulty of chord performance for the performer;
The pedal difficulty and chord difficulty for the performer are compared with the pedal difficulty and chord difficulty associated with each piece of music in the musical score data stored in the storage device, Music candidate selection means for selecting the matched music as a music candidate;
The musical score data of the predetermined music selected by the performer is read from the storage device from the music candidates selected by the music candidate selection means, and a score image based on the read musical score data is generated. A score image generating means for displaying on the display means,
A score display system, comprising: display means for displaying an image of the score. The music candidate selection means has a pedal difficulty that is equal to or less difficult than the pedal difficulty for the performer, and has a chord difficulty that is equal to or less difficult than the chord difficulty for the performer. The musical score display system according to claim 1, wherein a musical piece having the musical piece is selected as a musical piece candidate.   The performer information accepting means accepts key press information obtained by pressing the keyboard with the performer opening his finger, and obtains the difference between the highest and lowest notes of the pressed key as pitch data. The musical score display system according to claim 1 or 2, characterized in that The musical score display system includes:
A client device comprising the display means, the player information accepting means and the score image generating means;
A score distribution server comprising the storage device , pedal difficulty acquisition means, chord difficulty acquisition means, and music candidate acquisition means;
The score display system according to any one of claims 1 to 3, wherein the client device and the score distribution server are connected by a data communication network.   The client device is an electronic musical instrument comprising a keyboard having a plurality of keys and a musical sound data generating means for generating musical sound data according to the pitch of the pressed key. Item 5. The score display system according to Item 4.

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