JP5825533B2 - Music search device, music search system, and music search program - Google Patents

Description

  The present invention relates to a music search device, a music search system, and a music search program for searching music data composed of a plurality of chord progressions.

  A technique for reproducing music data selected by a user from a large number of music data and causing the user to play a musical instrument performance in accordance with the reproduced music is already known (for example, see Patent Document 1). In this prior art, among a plurality of pieces of music data composed of a plurality of chord progressions, music data in which a piece of music is composed only of chords that can be played by the user according to the performance skill of the user, Display on the monitor.

JP 2012-78478 A

  However, in the above-described prior art, an unknown chord with no performance performance by the user is a chord with which it is unknown whether the user can play, so there is the unknown chord for music data containing the unknown chord. This is also displayed on the monitor as a music that can be played. For the music data including unknown chords with no performance record, the user has to determine whether or not the music data can be easily played by looking at the display on the monitor.

  An object of the present invention is to provide a music search device, a music search system, and a music search program that can eliminate the trouble of a user determining whether or not to play music data easily and improve convenience.

In order to achieve the above object, a music search device according to a first aspect of the present invention is created in accordance with a performance result of a musical instrument player who has played along music data consisting of a plurality of chord progressions, and the plurality of chords Among these, the musical instrument player who is not familiar with the musical instrument player includes a failure code with no successful performance history of the musical instrument player and a high failure code with a performance failure history of the musical instrument player higher than a predetermined standard. An evaluation history acquisition means for acquiring evaluation history information in which a learning code is recorded, and a music data storage means for storing a plurality of music data based on the evaluation history information acquired by the evaluation history acquisition means, The music search means for searching for music data not including the unfamiliar code among the plurality of music data stored in the data storage means, and the music search means, Possess a display control means for displaying the search result of the music data free of proficiency code on the display means, wherein the evaluation history information further among the plurality of code, successful history of performance by the musical instrument player A learning code that the musical instrument player is proficient is recorded, including a success code with no failure history and a low failure code with a performance failure history of the musical instrument player lower than a predetermined reference, When there is no search result of the music data not including the unfamiliar code by the music search means, the music search means includes the low failure code among the plurality of music data stored in the music data storage means. newly searched music data, wherein the display control unit, according to the music retrieval means, that is newly displayed search results of the music data including the low failure code And butterflies.

  In the present invention, a user who is a musical instrument player can play and enjoy a musical instrument by himself while reproducing music data. Further, the performance results at that time can be accumulated and used when searching for music data during the subsequent performance of the user.

  That is, when a user (musical instrument player) plays a musical instrument as the music data stored in the music data storage means is read out and played, a plurality of music data constituting the music data is played and played. For each of the chords, it is verified whether the chord played by the user is being played correctly. As a result, the evaluation history information including unskilled chords that the user is not good at and plays the chords with a relatively high probability is created for the plurality of chords of the music data. In the music search device of the present invention, the evaluation history information created as described above is acquired by the evaluation history acquisition means.

  When a specific user wants to enjoy playing a musical instrument with the evaluation history information created for each user in this way, the music search means of the music search apparatus of the present invention sends the music data storage means. As a result of the access, a plurality of pieces of music data are searched. At that time, the music search means searches for music data that does not include the unfamiliar code related to the user among the plurality of music data based on the evaluation history information related to the user. And the search result of the music data which does not contain such an unfamiliar code is displayed on a display means by control of a display control means.

  Thus, the user can easily find music data that does not include the chord that he / she does not like from among a plurality of music data. As a result, the user can easily perform the performance while reproducing only the music data that can be performed with high probability. As a result, when the user makes a selection to reproduce the music data, it is not necessary for the user to individually determine whether or not the music data can be played easily, and convenience can be improved. .

Furthermore, in the first invention, even if there is no music data that includes only a mastered chord that does not fail to play, music data that includes only a chord with a low probability of failure is reproduced. Can perform. As a result, the convenience for the user can be improved more reliably.

A second invention further includes a selection receiving means for receiving selection of music data to be played from the search result displayed on the display means in the first invention, wherein the display control means is a search by the music search means. Of the results, the music data excluding the music data already received by the selection receiving means is displayed as a final search result.

  Accordingly, it is possible to avoid a possibility that the search result does not change because the music data that the user has played once is displayed as the search result many times. As a result, a search result that changes as the user plays the music can be displayed, and the convenience for the user can be further improved.

According to a third aspect of the present invention, in the first or second aspect of the invention , in the evaluation history information, performance time information indicating a time when the musical instrument player performed is associated with music data, and the music search means includes: Of the plurality of music data stored in the music data storage means, the search is executed for the evaluation history information of music data whose performance time information is within a predetermined period from the search time. .

  This makes it possible not to search the evaluation history information for music data with a relatively old date and time when the user performed in accordance with playback, but only for music data with a relatively new date and time when the user performed. Can be executed. As a result, a search suitable for the current user's proficiency level can be executed from the evaluation history information with a new performance date and time, and the convenience for the user can be further improved.

In order to achieve the above object, a music search system according to a fourth aspect of the present invention is a music data storage means for storing a plurality of music data respectively constituted by a plurality of chord progressions, and the music data storage means stored in the music data storage means. Music data reproducing means for reading and reproducing music data, and performance signal input means for inputting a performance signal output from the musical instrument by the performance of the musical instrument player according to the reproduction of the music data by the music data reproducing means And, according to the performance signal input by the performance signal input means in accordance with the reproduction of the music data, a failure code having no successful performance history by the instrument player and the instrument player among the plurality of chords And a high failure code whose performance failure history is higher than a predetermined standard. When, among the plurality of code, there is a success history of performance by the musical instrument player, and failure history of the performance failure history is a success code not by the musical instrument player has a low low failure code than a predetermined reference Including an evaluation history creating means for creating evaluation history information , which is recorded with a proficiency code familiar to the musical instrument player, and the evaluation history information created by the evaluation history creating means corresponding to the instrument Based on the evaluation history information stored in the evaluation history storage means and the evaluation history storage means stored in association with the performer, the specific musical instrument among the plurality of music data stored in the music data storage means Music search means for searching for music data not including the unskilled chord related to the performer, and music data not including the unskilled code by the music search means A display control means for displaying on the display means search results, and the music search means, wherein when there is no search result of the music data free of unskilled code, the plurality stored in the music data storage unit Music data including the low failure code is newly searched from the music data, and the display control means newly displays a search result of the music data including the low failure code by the music search means. And

  In the music search system of the present invention, a user who is a musical instrument player can play and enjoy a musical instrument by himself / herself while reproducing music data. Further, the performance results at that time can be accumulated and used when searching for music data during the subsequent performance of the user.

  That is, the music data stored in the music data storage means is read out and reproduced by the music data reproducing means. When the user (musical instrument player) plays the musical instrument in accordance with the reproduction, the corresponding performance signal is input by the performance signal input means.

  At this time, although the music data is composed of a plurality of chords, the chord performed by the user is correctly played for each of the plurality of chords during the reproduction of the music data and the performance of the user. Is checked. As a result, the evaluation history creation means creates evaluation history information including unfamiliar chords that the user is not good at and plays the chords with a relatively high probability, for a plurality of chords of the music data. Is done. The created evaluation history information is stored in the evaluation history storage means in association with the corresponding user.

  When a specific user wants to enjoy playing a musical instrument in a state where the evaluation history information is stored in the evaluation history storage means for each user in this way, the music search means accesses the music data storage means. Is performed, the stored music data is searched. At that time, the music search means searches for music data that does not include the unfamiliar code related to the user among the plurality of music data based on the evaluation history information related to the user stored in the evaluation history storage means. And the search result of the music data which does not contain such an unfamiliar code is displayed on a display means by control of a display control means.

  Thus, the user can easily find music data that does not include the chord that he / she does not like from among a plurality of music data. As a result, the user can easily perform the performance while reproducing only the music data that can be performed with high probability. As a result, when the user makes a selection to reproduce the music data, it is not necessary for the user to individually determine whether or not the music data can be played easily, and convenience can be improved. .

In order to achieve the above object, a music search program according to a fifth aspect of the present invention performs music data composed of a plurality of chord progressions with respect to the calculation means of a music search apparatus having operation means, display means, and calculation means. A failure code that does not have a success history of performance by the instrument player and a failure history of performance by the instrument player are determined based on a predetermined reference. An unskilled code that the instrument player has not mastered, and a success code that has a success history of performance by the instrument player and that has no failure history, Acquires evaluation history information in which a learning chord familiar to the musical instrument player is recorded, including a low failure code whose performance failure history by the musical instrument player is lower than a predetermined standard The plurality of music stored in the music data storage means from the music data storage means storing a plurality of the music data based on the evaluation history acquisition procedure and the evaluation history information acquired in the evaluation history acquisition procedure Music search procedure for searching for music data that does not include the unskilled code in the data, and display control for displaying the search result of the music data that is searched for in the music search procedure and does not include the unskilled code on the display means And a procedure for newly searching music data including the low failure code among the plurality of music data stored in the music data storage means when there is no search result of music data not including the unfamiliar code. , a procedure for newly displaying the search results of the music data comprising the previous SL low failure code, thereby executing.

  According to the present invention, there is no need for the user to easily determine whether or not music data can be played, and convenience can be improved.

It is explanatory drawing which shows the main structures of the karaoke apparatus concerning one Embodiment of this invention. It is a functional block diagram which shows the main structures of the control apparatus with which the karaoke apparatus was equipped. It is a functional block diagram showing the functional structure of a remote control. It is explanatory drawing which shows an example of the data structure of the reception data from the server containing music data. It is explanatory drawing for demonstrating a song part and a guitar part. It is explanatory drawing which shows an example of the display content displayed on a monitor at the time of reproduction | regeneration of music data. It is a functional block diagram showing the detailed function of CPU. It is explanatory drawing for demonstrating the method of embodiment which produces | generates several target pitch data and compares each with the actual pitch data in a specific time division separately. It is explanatory drawing showing an example of the evaluation log | history of a user's performance. It is explanatory drawing showing an example of a failure code list. It is explanatory drawing for demonstrating the re-search process in the case of the search process in the case of the number-of-exclusion process of the performance music exclusion at the time of search, and 0 hits. It is a flowchart which shows the processing content performed by CPU of a remote control and CPU of a control apparatus at the time of music reproduction. It is a flowchart showing the detailed procedure of step S200. It is a flowchart showing the detailed procedure of step S100.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. This embodiment demonstrates the case where a user plays an electric guitar with the performance of karaoke music by a musical tone performance apparatus.

<Main configuration>
FIG. 1 is an explanatory diagram showing a main configuration of a karaoke apparatus which is a musical tone performance apparatus of the present embodiment. As shown in FIG. 1, the karaoke apparatus 10 has a monitor television (hereinafter, abbreviated as a monitor) that displays a lyrics telop indicating lyrics, a background video displayed on the background of the lyrics telop, a video showing a music selection number, etc. on the CRT. 13, a user monitor 14, a musical instrument connection board 8 for connecting an electronic musical instrument such as an electric guitar 4 or an electric bass, a control device 20, an amplifier 16, and an amplified signal output from the amplifier 16 A set of floor-type speakers 11 to be reproduced as sound, a set of speakers 12 for hanging the ceiling, and a remote controller 30 for remotely operating the control device 20 are provided.

  The remote controller 30 is an operation terminal for the user to perform various operations such as a reservation operation for karaoke music. In the present embodiment, the user can perform music search as described later using the remote controller 30. The remote controller 30 corresponds to a music search device.

  In this example, the amplifier 16 mixes the musical instrument performance signal input from the musical instrument connection board 8, the audio signal input from the microphones 17 and 18, and the music reproduction signal (see the mixing circuit 9 shown in FIG. 2 described later). ), Sound and music volume balance adjustment, echo adjustment, delay adjustment, mixing signal amplification, playback pitch control (key control), treble and bass control (tone control), etc. I do.

  The control device 20 performs music selection control such as selection of music for karaoke (karaoke music; hereinafter, abbreviated as “music” as appropriate) and reservation of reproduction of music, which are composed of a plurality of musical instrument performance parts, and music selected. Communication control such as transmission of a request signal indicating a transmission request to the server, reception of music data (corresponding to karaoke music data) corresponding to the music indicated by the request signal, and types of musical sounds included in the received music data Of the MIDI data constituting the designation information, the sound source of the same type of instrument as the instrument connected to the instrument connection board 8 is designated.

  Although not shown, the musical instrument connection board 8 is connected to the output terminals (phone plugs) of the electronic drum, keyboard, electric bass, and electric guitar 4 (phone jacks; corresponding to performance signal input means); And output terminals for outputting performance signals inputted to the respective input terminals. The musical instrument connection board 8 automatically detects that each musical instrument is connected and the type of the musical instrument by connecting the output terminal of each musical instrument to the input terminal, and selects one performance signal of the connected musical instrument. The selected performance signal is output to an input terminal 44 (see FIG. 2 described later) of the control device 20. For example, a performance signal output from the electric guitar 4 is input to the musical instrument connection board 8 via a phone jack 4 a (see FIG. 2 described later) for connecting a phone plug of the electric guitar 4, and is output from the output terminal of the musical instrument connection board 8. The output performance signal is input to the input terminal 44 of the control device 20. Note that instead of automatically detecting the connection and the type of the musical instrument as described above, the user may manually perform settings corresponding to the musical instrument already connected on the remote controller 30 or the like.

<Control system>
The configuration of the control system of the control device 20 will be described with reference to FIG. FIG. 2 is a functional block diagram showing the main configuration of the control system of the control device 20. The control device 20 includes a communication terminal 40 that connects the LAN line 15 to the device housing, an input terminal 44 that is connected to the output terminal of the musical instrument connection board 8, and an audio output terminal 41 that is connected to the audio input terminal of the amplifier 16. The video output terminal 42 connected to the video input terminal of the monitor 13 and the video output terminal 43 connected to the video input terminal of the monitor 14 are provided.

  The control device 20 is provided with a CPU 45 that executes various controls according to the control program. The CPU 45 includes a RAM 46 for temporarily storing data transmitted from the remote controller 30, music selection number data indicating the music selection number of the selected music, music selection number data of the reserved music, and a program executed by the CPU 45 ( A musical tone performance processing program for executing the flow shown in FIGS. 12 and 14 (to be described later) and a ROM 47 in which necessary data tables are stored are connected.

  Further, the CPU 45 has a video RAM 48 in which character video data for displaying lyrics telop and various message videos on the monitors 13 and 14 and music data and chord score information transmitted from the server 58 (details will be described later). A LAN board 50 for receiving lyrics data and video data via the communication terminal 40, and a RAM 49 (music data storage means for temporarily storing music data and lyrics data received by the LAN board 50) Is connected).

  Further, the CPU 45 is connected to a MIDI sound source board 51 that inputs MIDI data included in the song data read from the RAM 49 and outputs a sound source signal from a sound source specified by the input MIDI data. . Further, the CPU 45 inputs the output sound source signal and converts it into a signal that can be amplified by the amplifier 16, and a CD-ROM player 53 that reads background video data indicating a general background video. Is connected.

  In addition, a video control circuit 54 is connected to the CPU 45. The video control circuit 54 inputs general background video data read from the CD-ROM player 53, song-specific background data read from the RAM 49, lyrics telop data included in the song data, and the like. Then, video control is performed in which a video in which the lyrics telop is superimposed on the background video displayed on the display screen of the monitor 13 is created or the color of the lyrics telop is changed as the music progresses.

  Further, the CPU 45 has a conversion circuit 55 that converts an optical signal from the remote controller 30 received by the light emitting / receiving unit 38 of the control device 20 into a digital signal, and various buttons and keys ( The display circuit 56 that outputs a display signal to the LED 91 that is turned on when the numeric keypad 90, the music selection button 90, etc. are pressed and the input circuit 57 that inputs the switching signal generated when the various buttons / keys 90 are pressed are connected. Has been.

<Remote control>
A functional configuration of the remote controller 30 is shown in FIG. In FIG. 3, the remote controller 200 includes an operation unit 30a (corresponding to an operation unit), a display unit 30b (corresponding to a display unit), a control unit 30c, a storage device 30d, and a communication control unit 30e. .

  The control unit 30c includes a CPU (corresponding to a calculation unit) (not shown) and a memory such as a RAM and a ROM. The ROM stores a control program including a music search program for executing the flows shown in FIGS. 12 and 13 described later, a necessary data table, and the like. The control unit 30c executes various programs stored in advance in the ROM or the storage device 30d while using the temporary storage function of the RAM. The control unit 30c controls the entire remote controller 30 by executing various programs.

  The storage device 30d is composed of, for example, a nonvolatile memory and stores various information such as a program executed by the CPU. The operation unit 30a includes, for example, a plurality of keys and switches. The user can perform various operations such as a reservation operation for karaoke music using the operation unit 30a (or the above buttons and keys of the control device 20). The display unit 30b is composed of, for example, a liquid crystal display and performs various displays.

  In this example, the communication control unit 30e is connected to the light emitting / receiving unit 38 of the control device 20 through infrared communication so that information can be transmitted and received (or connected to a wireless or wired local area network (LAN) or the like). May be). The communication control unit 30e controls information communication performed through such infrared rays.

<Basic operation of karaoke equipment>
In the karaoke apparatus 10 having the basic configuration described above, when the user selects a karaoke piece including, for example, a performance part of the electric guitar 4 by the remote controller 30, and receives the piece of music data transmitted from the server 58 in response to the selection, the piece of music data is obtained. Played. When the user plays the electric guitar 4 in accordance with the performance of the music data including the performance part of the electric guitar 4, the performance signal output from the electric guitar 4 is input to the input terminal 44 of the control device 20 via the instrument connection board 8. Is input. Then, in the sound control circuit 52, the sound source signal is output to the sound output terminal 41. In the so-called minus one playback state, the audio control circuit 52 outputs to the audio output terminal 41 in the minus one playback state in which the performance part of the electric guitar of the sound source signal is replaced with the performance signal of the electric guitar 4. Is done.

  At this time, in this embodiment, chord score information (details will be described later) is associated in advance with performance support for music data including the guitar performance part of the electric guitar 4 received together with the lyrics data and video data from the server 58. When the music data is reproduced, the chord score information is displayed together with the lyrics data and the video data by the monitors 13 and 14. As a result, the user who is a player looks at the chord score information displayed on the monitors 13 and 14 and easily plays the performance part of the electric guitar 4 in accordance with the karaoke music to be reproduced. You can practice 4 and enjoy an ensemble of the entire karaoke music.

<Data structure>
FIG. 4 is an explanatory diagram showing a data structure of received data including music data received from the server 58 in the present embodiment. In the example shown in FIG. 4, four bars of karaoke music are shown as a part of data received from the server. The received data includes music data of a plurality of musical instrument performance parts (in this example, a guitar part, a bass part, and a drum part corresponding to the electric guitar 4) corresponding to the progress of the performance for four bars, the chord score information, Lyric data (lyric telop data) and video data are provided.

  The music data is reproduced from the first bar (hereinafter simply referred to as “first bar” or the like) in the data shown in FIG. 4 together with the lyrics data and the video data, and the second bar, the third bar, Playback proceeds to the fourth measure. Corresponding to the reproduction, display based on the lyrics data and the video data also proceeds.

<Cord score information>
The chord information is associated with music data. In this example, the first bar in the figure is chord Em, the second bar is chord Bm, the third bar is chord C, and the fourth bar is chord Bm. ing. In this example, as shown in FIG. 5, the chord progression corresponds to the melody with the lyrics “If you don't even say that”, the chord progression is chord Em (first measure in FIG. 5) → chord Bm (second Bar) → code C (third bar) → code Bm (fourth bar)... The chord score information is a chord score on the assumption that the electric guitar 4 is played with the chord stroke method along the chord progression.

In this example, the chord score information is composed of the same file as the music data. However, the present invention is not limited to this, and the chord score information is composed of the music data and a separate file (hereinafter, chord score information file). It may be associated with a song name. For example, with the following configuration and processes (1) to (4), even if the chord score information is a separate file from the song data, the same effect can be obtained as when the chord score information is the same file as the song data.
(1) The chord score information file associates in advance a performance time t (seconds) indicating the progress time of a song and a chord symbol indicating chord score information that appears in accordance with the progress of the music data playback time. Table file. Specifically, the table records information of (performance time t1: chord Em, t2: chord Bm,... Last performance time tX: last chord symbol X).
(2) The chord score information file is stored in the RAM 49 together with the music data.
(3) When the reproduction of the music is designated from the input circuit 57, the CPU 45 reads out the corresponding music score information file from the RAM 49 together with the music data.
(4) The CPU 45 reproduces the music data according to the execution program in the ROM 47, and reads out the chord information from the chord information file according to the reproduction progress time. Specifically, when the progress time of the music data reproduction reaches t1 (seconds), the code Em corresponding to t1 is read from the chord score information file, and when t2 (seconds) is reached, it corresponds to t2. Read the code Bm. Similarly, the chord score information corresponding to the progress time is continuously read from the chord score information file until the music data reproduction ends (tX (seconds)).

  FIG. 6 is an explanatory diagram showing an example of display contents displayed on the monitors 13 and 14 corresponding to the chord score information when the music data is reproduced. In this example, a display example corresponding to the music data for four bars shown in FIG. 4 is shown. That is, the display contents of the monitors 13 and 14 are the above-mentioned lyrics for the four bars “I have to say that word” and the chord score attached to the upper side of the lyrics (first bar: Em, second bar: Bm, 3 bars: C, 4 bars: Bm), and a playback progress bar provided at the bottom of the lyrics for 2 bars. The reproduction progress bar is indicated by a black portion extending in a strip shape to indicate the progress of reproduction of the music data. The user of the electric guitar 4 looks at the chord score displayed on the monitors 13 and 14 when reproducing the music data, and presses the chords of the electric guitar 4 in the order of the chord progression corresponding to the extension state of the reproduction progression bar. You can easily play the electric guitar part of karaoke music.

  FIG. 6A shows a state in which the reproduction of the music data starting from the beginning of the first bar (code Em) has progressed to the middle of the first bar (the “no” part of the lyrics “that word”). The black portion of the first reproduction progress bar extends partway through the first bar. In FIG. 6 (b), the reproduction further proceeds from the state of FIG. 6 (a), the first measure of the chord Em ends, and the middle part of the second measure of the chord Bm (the lyrics “even words” “ The “leaf” part) is being regenerated, and the black part extends partway through the second bar. In FIG. 6C, the reproduction further proceeds from the state of FIG. 6B, and the portion of the chord C at the end of the second measure (the portion of “E-” of the lyrics “word even”) is reproduced. The black portion extends to the end of the second bar.

<Features of this embodiment>
By the way, the method of scoring a user's song in a karaoke apparatus has already been widely performed. Here, when the user performs a stringed instrument (in this example, the electric guitar 4) using the chord score information as described above, if the user evaluates the performance, the enjoyment for the user is further increased. Can do. Furthermore, music with poor evaluation results (in other words, music that is difficult for the user to play) is excluded from the display of search results when searching for music with the remote controller 30 (not displayed). If it can be performed, convenience for the user is improved.

  Therefore, in the present embodiment, first, the chroma vector processing is performed after the frequency component of the performance signal output by the user playing the electric guitar 4 is extracted by a known FFT (Fast Fourier Transform) technique. Thus, actual pitch data (details will be described later) corresponding to the performance is generated for each predetermined time segment. The evaluation is performed based on the degree of coincidence between the actual pitch data and target pitch data (details will be described later) generated based on the chord information. The details will be described below with reference to FIGS.

<Detailed functions of CPU>
In order to perform the above evaluation, the functional configuration of the CPU 45 of this embodiment is shown in FIG. As illustrated, the CPU 45 includes functional units such as an FFT processing unit 45a, a characteristic parameter acquisition unit 45b, an actual data buffer 45c, a target data buffer 45e, a matching processing unit 45d, an evaluation result generation unit 45f, and the like. .

  As described above, the performance signal output from the electric guitar 4 by the user's performance and input to the control device 20 is converted into digital data and then input to the FFT processing unit 45a and the characteristic parameter acquisition unit 45b. The FFT processing unit 45a divides the performance audio data, which is the input sampling data string, into predetermined time segments (for example, 186 msec in this embodiment as will be described later) and performs fast Fourier transform. The frequency spectrum obtained by the FFT is input from the FFT processing unit 45a to the feature parameter acquisition unit 45b.

  The characteristic parameter acquisition unit 45b receives the performance sound data and also receives a frequency spectrum that is frequency domain information from the FFT processing unit 45a. The characteristic parameter acquisition unit 45b acquires a plurality of characteristic parameters indicating various characteristics of the performance sound data from the performance sound data and its frequency spectrum, and the actual pitch corresponding to the acquired result by a known chroma vectorization technique. Data (data representing each chord sound included in the performance signal) is generated and output. This feature parameter is acquired in the frame for each time segment. Specifically, the feature parameter acquisition unit 45b includes a time domain information acquisition unit 45ba that calculates a time domain feature parameter from the input performance audio data and a frequency domain feature from the frequency spectrum input from the FFT processing unit 45a. A frequency domain information acquisition unit 45bb for determining parameters is provided.

  The time domain information acquisition unit 45ba divides the input performance sound data into frames for each time domain corresponding to the time segment synchronized with the FFT processing unit 45a, and acquires time domain feature parameters for each frame. Examples of characteristic parameters acquired by the time domain information acquisition unit 45ba include energy, energy change, duration, and the like. The frequency domain information acquisition unit 45bb acquires frequency domain feature parameters from the frequency spectrum of the waveform having the length for each time segment input from the FFT processing unit 45a. Examples of characteristic parameters acquired by the frequency domain information acquisition unit 45bb include, for example, pitch, harmonic frequency, harmonic level, harmonic phase, and the like.

  The actual pitch data generated and output based on the characteristic parameters acquired by the time domain information acquisition unit 45ba and the frequency domain information acquisition unit 45bb as described above are input to the actual data buffer 45c. The actual data buffer 45c stores the input actual pitch data with time information (time stamp).

  On the other hand, the chord score information synchronized with the karaoke song data is input to the target data buffer 45e, and target pitch data based on the chord score information is stored. This target pitch data is data corresponding to a plurality of sounds constituting chords of each chord included in the chord score information, and when the chord score information is input to the target data buffer 45e, the chord score information And is stored in the target data buffer 45e.

  The matching processor 45d compares the actual pitch data stored in the actual data buffer 45c as described above with the corresponding target pitch data stored in the target data buffer 45e by a known method. And the degree of coincidence is calculated. The calculated degree of coincidence is output to the evaluation result generation unit 45f.

  The evaluation result generation unit 45f evaluates the performance by the user (in this example, the performance of the electric guitar 4) based on the degree of coincidence input from the matching processing unit 18, and gives an evaluation result of performance success or performance failure. The evaluation history creating unit 45g totals the evaluation results (performance success or performance failure) for each code and stores it as an evaluation history (corresponding to evaluation history storage means; see FIG. 9 described later). The stored evaluation history is output to the remote controller 30 based on an instruction by the operation of the remote controller 30 and displayed on the display unit 30b (described later).

<Performance evaluation method>
The performance evaluation method in the present embodiment will be described with reference to FIG.

  In FIG. 8, in this example, the chord Em (first measure) → the chord Bm (second measure) → the chord C (third measure) in the music data shown in FIGS. The music is played with the chord progression in the order of..., And the user plays the electric guitar 4 in accordance with the playback, and the corresponding performance signal is sampled for each time segment (in this example, 8192 for every 186 msec). The data is sampled).

  In this example, in the performance signal, the first section of 186 msec (“first section” in the figure) generally corresponds to the user's performance in the first bar (that is, corresponds to the chord Em). The next 186 msec section ("second section" in the figure) corresponds to the performance of the user in the second bar (ie, corresponds to the chord Bm). Further, the next 186 msec section (“third section” in the figure) generally corresponds to the user's performance in the third measure (ie, corresponds to chord C).

  In the first category, the frequency components are extracted by the FFT process and the chroma vector process is performed as described above based on the performance signal from the performance of the user's electric guitar 4. As a result, “C” “E” “G” Actual pitch data including these three sounds is generated. The horizontal axis of the bar graph represents the signal level of each sound. Since the first section corresponds to the first measure as described above and the chord to be played is chord Em, the target pitch data includes “B”, “E”, and “C” constituting the chord of the chord Em. Three sounds “G” are included. As a result, the target pitch data including the three sounds “B”, “E”, and “G” is compared with the actual pitch data including the three sounds “C”, “E”, and “G”, and the target pitch data is compared. Among them, the actual pitch data for the “E” sound and the “G” sound match, but the actual pitch data for the “C” sound does not match (that is, the matching degree is 66.7%). ). As a result, in this example, the evaluation result is “performance failure”.

  In the second section next to the first section, actual pitch data including three sounds “B”, “D #”, and “F #” is generated based on the performance signal of the electric guitar 4 as described above. At this time, the second section corresponds to the second measure as described above, and the chord to be played is chord Bm, and the target pitch data includes “B” and “D” constituting the chord of chord Bm. Three sounds “F #” are included. As a result, the target pitch data including the three sounds “B”, “D”, and “F #” is compared with the actual pitch data including the three sounds “B”, “D #”, and “F #”. Of the pitch data, the actual pitch data matches the sound of “B” and the sound of “F #”, but the actual pitch data does not match for the sound of “D” (that is, the degree of match) 66.7%). As a result, in this example, the evaluation result is “performance failure”.

  In the third section next to the second section, actual pitch data including three sounds “C”, “E”, and “G” is generated based on the performance signal of the electric guitar 4 as described above. At this time, the third section corresponds to the third measure as described above, and the chord to be played is chord C. Therefore, the target pitch data includes three sounds “C”, “E”, and “G” that constitute a chord of the chord C. As a result, the target pitch data including the three sounds “C”, “E”, and “G” is compared with the actual pitch data including the three sounds “C”, “E”, and “G”, and the target pitch data is compared. The actual pitch data for all the “C” sounds, “E” sounds, and “G” sounds match (ie, the degree of coincidence is 100%). As a result, in this example, the evaluation result is “successful performance”.

  When the user performs a piece of music, as described above, the evaluation results by the generation unit 45f as described above are tabulated for each code. Further, when the user performs a plurality of music pieces, the above-mentioned totaling for each code is performed for each piece of music, and an evaluation history is created in association with the identification information of the user (for example, the user ID at the time of login).

<Example of creating an evaluation history>
FIG. 9 shows an example of an evaluation history of a user created by the evaluation history creation unit 45g. In the example shown in the figure, the song “I feel you” performed on August 1 by the user is composed of only the chord “C” and the chord “G”. Of the performance parts of the chord “C” appearing 30 times in the song, 30 times (100%) have been successfully played and there is no performance failure (0 times). Of the performance parts of the incoming code “G”, 10 performances (100%) succeeded and there was no performance failure (0).

  The music “Regret” performed by the user on July 26 is composed of a plurality of chords including chord “Bm”, chord “C” and the like. Of the performance parts of the chord “Bm” appearing 20 times in the music, 12 (60%) have been successfully played and 8 (40%) have failed in performance. 12 times (100%) of the performance parts of the chord “C” appearing 12 times succeeded and there was no performance failure.

  Also, the song “Forget” that this user performed on June 20 is composed of a plurality of chords including chord “Bm”, chord “Aaug”, and the like. Of the performance parts of the chord “Bm” appearing 40 times in the song, 24 times (60%) have been successfully played and 16 times (40%) have been unsuccessful. Among the performance parts of the chord “Aaug” appearing 10 times in the first, 2 times (20%) succeeded in performance, and 8 times (80%) failed in performance.

  In addition, the song “Scarlet Town” performed by the user on May 2 includes a plurality of chords including a chord “Em”, a chord “C # dim”, and the like. Of the performance parts of the chord “Em” appearing 10 times in the music, 8 (80%) have been successfully played and 2 (20%) have failed in performance. Among the performance parts of the chord “C # dim” appearing 6 times, performance (6%) (100%) failed and there was no performance success.

<Failure code list>
As described above, a search operation (described later) by the user is performed via the remote controller 30 in a state where the evaluation history is created and stored for each user in the evaluation history creating unit 45g of the CPU 45 provided in the control device 20. Based on the evaluation history of the user, a failure code list that has failed in performance is created by the control unit 30c of the remote controller 30. The example shown in FIG. 10 shows an example of the failure code list created based on the evaluation history shown in FIG. As shown in the drawing, in this failure code list, the chords are listed in descending order of performance failure rate (in other words, performance success rate is low). Note that, as will be described later, since the music search is performed by preferentially excluding codes with higher performance failure rates, the order of listing is represented as “priority”.

  In this example, the first rank is the code “C # m” with the highest failure rate (= success rate is low; the same applies hereinafter), and the second rank is the success rate of 10%. The code is “Bsus4”, the third rank is a code “Aaug” with a success rate of 20%, the fourth rank is a code “Dadd9” with a success ratio of 50%, and the fifth rank is a code “with a success rate of 60%” Bm ”and the sixth rank is the code“ Em ”with a success rate of 80%. In other words, the user has a history of performance failure of these six codes “C # dim”, “Bsus4”, “Aaug”, “Dadd9”, “Bm”, and “Em” at least once.

  In this user's example, the code “C # dim” having a success rate of 0% corresponds to the failure code described in each claim for this user. If the criterion for determining whether or not the user is not good is a failure rate of 60% (success rate of 40%), in this example, the code “Bsus4” with a success rate of 10% and the code “Aaug” with a success rate of 20% Corresponds to the high failure code described in each claim for this user. These failure codes and high failure codes correspond to the unskilled codes described in the claims, which are not proficient for the user to perform. In general, special codes such as a diminished code such as the code “C # dim”, a sustain code such as the code “Bsus4”, an augment code such as the code “Aaug”, and the like The seventh chord, minor seventh chord, etc. may be included). Since fingering during performance is relatively difficult, performance is often unsuccessful for non-experts. Therefore, the above-mentioned unskilled codes and the like may be classified by paying particular attention to the evaluation results of these special codes in the evaluation history. Furthermore, even if there is no performance history by the user, a song including the special chord may be handled as a song including the unfamiliar chord with a default value.

  On the contrary, in this example of the user, as shown in FIG. 9, the success rate of the performance of the chords “C” and “G” is 100%. Therefore, these chords “C” and “G” are It corresponds to the success code described in each claim. Also, assuming that the criterion for determining whether or not the user is good is a failure rate of 40% (success rate of 60%), in this example, as shown in FIG. The code “Bm” with a rate of 60% corresponds to the low failure code described in each claim for this user. The success code and the low failure code correspond to the proficiency code described in each claim, which is proficient for the user to perform. In general, simple chords such as the above-mentioned chords “C” and “G” (and simple chords such as chords “Em” and “Bm” may also be included) Fingering is relatively easy, and even beginners often perform successfully with a certain degree of probability. Therefore, the above-mentioned learning codes and the like may be classified by paying attention to the evaluation results of these simple codes in the evaluation history. Furthermore, even if there is no performance history by the user, a song including the simple chord may be handled as a song including the proficiency chord with a default value.

<Searching for songs that do not contain failure codes>
When the user performs a new music search operation using the operation unit 30 a of the remote control 30, the control unit 30 c of the remote control 30 accesses the RAM 49 of the control device 20 and is received from the server 58. Among the plurality of songs stored in the RAM 49, all the codes included in the failure code list, that is, the codes “C # dim”, “Bsus4”, “Aaug”, “Dadd9”, “Bm”, and “Em” are not included. Search for music. In the example shown in the figure, as a result of this search, the music “Kimi feel me” consisting only of the codes “C” and “G” is hit (= number of hits is 1) as described above, and this song “feel me you”. The tune that can be easily played by the user is displayed on the display unit 30b of the remote controller 30 (not shown). If there are a plurality of corresponding music pieces, the plurality of music pieces are displayed in a list on the display unit 30b (the same applies hereinafter).

<Excluded song exclusion process and re-search process for 0 hits>
By the way, when displaying on the display unit 30b based on the search result using the failure code list as described above, it is very meaningless for the user that the already played music hits the search and is repeatedly displayed. There is no inconvenience. Therefore, in the present embodiment, even if the music matches the search condition (not including the failure code in the above example), the music already played by the user is displayed in a form excluded from the search results. . For example, in the example shown in FIG. 11A, only the codes “C” and “G” are searched by searching for a song that does not include the codes “C # dim”, “Bsus4”, “Aaug”, “Dadd9”, “Bm”, and “Em”. The song “I feel you” is included, but since the user has already played this song, it is excluded from the search result, and “0 hits” is displayed on the display unit 30b of the remote controller 30. Shows the case.

  When the number of hits is “0” as described above, in this embodiment, the above-described “search for music not including a failure code” is gradually relaxed and the search is executed again. In other words, a search is performed for “music that includes a code that has failed but has a low failure rate (ie, a code that has a high success rate)”. Specifically, according to the above example, as shown in FIG. 11B, the codes “C # dim” “Bsus4” “Aaug” “Dadd9” “Bm” “ From the failure code list including “Em”, a new failure code list excluding the sixth rank code “Em” with the lowest performance failure rate (success rate 80%) is generated, and based on the new failure code list , The search is again performed for the music that does not include the codes “C # dim”, “Bsus4”, “Aaug”, “Dadd9”, and “Bm” (the code “Em” may be included). In the example shown in FIG. 11B, the corresponding music is not found even in this new search, and “0 hits” is displayed on the display unit 30 b of the remote controller 30.

  If the number of hits is “0” as described above, in this embodiment, as shown in FIG. 11C, the codes “C # dim” “Bsus4” shown in FIG. ”“ Aaug ”,“ Dadd9 ”,“ Bm ”are generated, and a new failure code list is generated by excluding the fifth-ranked code“ Bm ”with the next lowest performance failure rate (success rate 60%) Based on the new failure code list, a search for a song that does not include the codes “C # dim”, “Bsus4”, “Aaug”, and “Dadd9” (the codes “Em” and “Bm” may be included) is performed again. Done. In the example shown in FIG. 11C, in this new search, the song “Regret” (see also FIG. 9) consisting only of the codes “C”, “G”, and “Bm” is hit (= number of hits). The song “Reret” is displayed on the display unit 30b of the remote controller 30 as a song that can be played relatively easily by the user (not shown).

<Control procedure>
In order to implement the method of the present embodiment as described above, the music search program stored in the ROM is executed by the CPU 45 of the control device 20 and the CPU of the control unit 30c of the remote controller 30 provided in the karaoke device 10. The processing contents to be performed will be described with reference to the flowchart of FIG.

  The process shown in FIG. 12 executed by the CPU is started when the user of the karaoke apparatus 10 presses the power button of the control apparatus 20 to turn on the power supply of the control apparatus 20, for example. In conjunction with the rising of the power supply of the control device 20, the power supply of the amplifier 16, the musical instrument connection board 8 and the monitors 13, 14 is started up. As described above, in this example, the case where the user of the karaoke apparatus 10 performs by connecting the electric guitar 4 to the musical instrument connection board 8 will be described. When the user connects the phone plug of the electric guitar 4 to the input terminal (phone jack) 4a of the musical instrument connection board 8, the musical instrument connection board 8 detects that the electric guitar 4 is connected.

  In FIG. 12, first, in step S200, the CPU of the control unit 30c of the remote control 30 performs a music search process in accordance with the operation of the operation unit 30a by the user. Details of the music search process are shown in FIG.

  In FIG. 13, first, in step S210, the CPU of the control unit 30c has already accumulated in the evaluation history creating unit 45g of the CPU 45 of the control device 20 by the past performance using the user ID acquired in advance by login as described above. The user's evaluation history (see FIG. 9 described above) is acquired. And based on the acquired evaluation history, the said failure code list | wrist (refer FIG. 10) of the said user is produced. This step S210 corresponds to the evaluation history acquisition procedure described in each claim, and the CPU of the control unit 30c that executes this step functions as an evaluation history acquisition unit.

  Thereafter, in step S220, the CPU of the control unit 30c accesses the RAM 49 of the control device 20 while referring to the failure code list, and among the plurality of music data received from the server 58 and stored in the RAM 49, the list Music that does not include the chord (in the example of FIG. 10, music that does not include “C # dim”, “Bsus4”, “Aaug”, “Dadd9”, “Bm”, and “Em”) is searched. Note that the music data stored in the server 58 may be searched by accessing the server 58 instead of the music data stored in the RAM. In this case, the server 58 functions as music data storage means. Thereafter, the process proceeds to step S230.

  In step S230, the CPU of the control unit 30c includes, in the search result in step S220, a song that has already been played by the user (in other words, has been accepted by the user in step S10 described later) in the past. Deletes (excludes) the music from the search result (“number of hits” described later). Thereafter, the process proceeds to step S240.

  In step S240, the CPU of the control unit 30c determines whether or not the number of hits is one or more as a search result obtained through steps S220 and S230. If the number of hits is 0, the determination is not satisfied (S240: NO), and the process proceeds to step S250.

  In step S250, the CPU of the control unit 30c deletes (excludes) the code having the highest success rate (the code located at the lowest level in the illustration of FIGS. 10 and 11) from the failure code list at this time point, The process returns to step S220. Thereafter, the same procedure is repeated. As a result, until the search result becomes at least one, the codes are sequentially removed in the order of the success rate in the failure code list (the search condition is relaxed), and the search is repeated. That is, step S220, step S230, step S240, and step S250 correspond to the music search procedure described in each claim, and the CPU of the control unit 30c that executes these steps functions as a music search means.

  If the number of hits is one or more due to the processing of step S220 and step S230 as described above, or the processing repeated with step S220, step S230, step S240, step S250, etc., the determination of step S240 is satisfied. (S240: YES), go to step S260.

  In step S260, the CPU of the control unit 30c outputs a display control signal to the display unit 30b, and causes the display unit 30b to display the search result that has become one or more in step S240. This step S260 corresponds to the display control procedure described in each claim, and the CPU of the control unit 30c executing this step functions as a display control means. When step S260 is completed, the process of step S200 is completed.

  Based on the search result displayed on the display unit 30b as described above, the user operates the operation unit 30a to select a desired song (a song to be played on the electric guitar 4) among the songs displayed as the search result. In step S10, the CPU 45 of the control device 20 determines that the music selection by the user has ended (S10: YES). The music selection is performed, for example, when the user inputs the music selection number of the music using the numeric keypad on the operation unit 30a and presses the music selection button. Thereafter, the process proceeds to step S15. In addition, CPU45 of the control apparatus 20 which performs step S10 at this time functions as a selection reception means described in each claim.

  In step S15, the CPU 45 of the control device 20 corresponds to the music selection result in step S10, temporarily stores the music selection number data indicating the music selection number in the RAM 46, and via the LAN board 50, the music corresponding to the music selection number. A request signal for requesting data transmission is transmitted to the server 58 via the LAN line 15. Thereby, the server 58 searches and reads out the music data corresponding to the music selection number indicated in the request signal and the chord score information and the lyrics data and video data corresponding to the music data from a storage device (not shown), The read music data and the like are transmitted to the control device 20 via the LAN line 15. When step S15 ends, the process proceeds to step S20.

  In step S <b> 20, the CPU 45 of the control device 20 receives music data (including chord information) transmitted from the server 58 via the LAN line 15 via the LAN board 50. Thereafter, the process proceeds to step S25.

  In step S25, the CPU 45 of the control device 20 temporarily stores the music data received in step S20 in the RAM 49. Thereafter, the process proceeds to step S30.

  In addition, as a process of step S15, step S20, and step S25, the process in the case of acquiring a music data, chord score information, etc. matched with the music selection number from the server 58 for every music selection is performed. In addition, a large-capacity auxiliary storage means (not shown) is provided in the control device 20 of the karaoke apparatus 10, and music data and the like are stored in advance in the auxiliary storage means, and each song selection is associated with a song selection number. The obtained information group may be read from the auxiliary storage unit to obtain target information.

  In step S30, the CPU 45 of the control device 20 starts reading the MIDI data stored in the RAM 49 in step S25 and writes the read MIDI data to the MIDI tone generator board 51. When step S30 ends, the process proceeds to step S35.

  In step S35, the CPU 45 of the control device 20 outputs a control signal to the MIDI sound source board 51, and causes the MIDI sound source board 51 to output a sound source signal corresponding to the MIDI data written in step S30. The sound source signal output from the MIDI sound source board 51 is output to the sound control circuit 52 and converted into a music signal that can be amplified by the amplifier 16, and the converted music signal is transmitted from the sound output terminal 41 to the amplifier 16. Is output. Also, the audio signal input from the microphones 17 and 18 is mixed with the music signal in the mixing circuit 9 built in the amplifier 16. At this time, the performance signal output from the output terminal of the electric guitar 4 is input to the mixing circuit 9 via the musical instrument connection board 8 and the control device 20, and is mixed with the audio signal and the music signal. The mixed signal thus mixed is amplified by an amplifier circuit (not shown) built in the amplifier 16 and then output to the speaker 11 and the speaker 12 and reproduced by both speakers. The CPU 45 of the control device 20 that executes the procedure of step S35 functions as music data reproducing means described in each claim. When step S35 ends, the process proceeds to step S40.

  In step S40, the CPU 45 of the control device 20 outputs a control signal to the monitors 13 and 14 to display the chord score information and lyrics stored in step S25 on the monitors 13 and 14 (note that the performance in step S100 described later is performed). Success / failure evaluation results may also be displayed at this time). Thereby, the user who is a player of the electric guitar 4 plays the electric guitar 4 according to the chord score displayed on the monitors 13 and 14, thereby easily playing the electric guitar performance part in accordance with the karaoke music to be reproduced. Can play. Thereafter, the process proceeds to step S50.

  In step S50, the CPU 45 of the control device 20 stores the performance signal input from the input terminal 44 by the performance of the user's electric guitar 4 as performance data, for example, in the RAM 49. Thereafter, the process proceeds to step S55.

  In step S55, the CPU 45 of the control device 20 determines whether or not one time segment corresponding to the FFT (Fast Fourier Transform) processing unit has been completed. If the time segment has not ended, the determination is not satisfied (S55: NO), and the process returns to step S30 and the same procedure is repeated. When the time segment ends, the determination is satisfied (S55: YES), and the routine goes to Step S100.

  In step S100, the CPU 45 of the control device 20 performs a performance evaluation process using the method described above. Details of the performance evaluation process are shown in FIG.

  In FIG. 14, first, in step S110, the CPU 45 of the control device 20 reads the performance data accumulated in step S50 (corresponding to the one category), and the FFT processing unit 45a uses a known FFT (fast Fourier transform). ) To extract and analyze each frequency component. Thereafter, the process proceeds to step S120.

  In step S120, the CPU 45 of the control device 20 generates the above-described actual pitch data by converting the analysis result in step S110 into a chroma vector by a known method by the feature parameter acquisition unit 45b. Thereafter, the process proceeds to step S130.

  In step S130, the CPU 45 of the control device 20 generates the target pitch data for each chord based on the chord score information acquired in step S20 and displayed in step S40 by the matching processing unit 45d. Store in the data buffer 45e. Thereafter, the process proceeds to step S140.

  In step S140, the CPU 45 of the control device 20 compares the target pitch data generated in step S130 with the corresponding actual pitch data by the matching processing unit 45d, and calculates the degree of coincidence. Based on the calculated degree of coincidence, the evaluation result generation unit 45f determines whether or not the performance is successful (see FIG. 8 described above). Thereafter, the process proceeds to step S150.

  In step S150, the CPU 45 of the control device 20 generates an evaluation history by counting and accumulating the determination results of “successful performance” or “unsuccessful performance” in step S140 by the evaluation history creating unit 45g. Do and store. When step S150 is completed, this routine ends. In addition, CPU45 of the control apparatus 20 which performs step S150 functions as an evaluation log | history production means as described in each claim.

  Returning to FIG. 12, when step S180 is completed, the CPU 45 of the control device 20 determines whether or not the reproduction of the music data has been completed in step S65 (in other words, the reading of the MIDI data in step S30 is the last MIDI of the music data). Whether or not the data has been completed) is determined. If the reproduction of the music data is finished, the determination is satisfied (step S65: YES), and this flow is finished. Until the reproduction of the music data is completed, the determination is not satisfied (step S65: NO), the process returns to step S30, and the procedure of steps S30 to S65 is repeated.

<Effect of embodiment>
As described above, in the present embodiment, during the reproduction of music data and the performance of the user, each of the plurality of chords constituting the music data is compared with the chord performed by the user (whether the user is performing correctly). (See step S140 in FIG. 14). As a result, for a plurality of chords of the music data, the user erroneously plays the chord with a relatively high probability (= the user is not good at the evaluation history) including the unfamiliar chords (FIG. 9). Is created in the evaluation history creating unit 45g and stored in association with the corresponding user.

  When a specific user wants to enjoy playing a musical instrument in a state where the evaluation history is stored for each user in this way, a plurality of pieces of music data stored in the RAM 49 of the control device 20 by the remote controller 30 are stored. A search is performed. At that time, based on the evaluation history related to the user stored in the evaluation history creating unit 45g, the unskilled code related to the user (in other words, the code that the user is not good at) is included among a plurality of music data. No music data is searched (see step S220 to step S250 in FIG. 13). Then, the search result of the music data that does not include such an unfamiliar code is displayed on the display unit 30b of the remote controller 30.

  Thus, the user can easily find music data that does not include the chord that he / she is not good at from among a large number of music data stored in the RAM 49. As a result, the user can easily perform the performance while reproducing only the music data that can be performed with high probability. As a result, when the user makes a selection to reproduce the music data, it is not necessary for the user to individually determine whether or not the music data can be played easily, and convenience can be improved. .

  In the present embodiment, in particular, when the number of hits in a search that does not include a failure code or a high failure code (that is, an unfamiliar code) becomes 0 as described above, the search condition is relaxed to reduce the low failure code. Is newly searched (see FIG. 11B and FIG. 11C). Thus, even if there is no music data that includes only a chord that does not fail to be played, the user reproduces music data that includes only a chord with a low probability of failure, and performs the performance. It can be carried out. As a result, the convenience for the user can be improved more reliably.

  Further, in the present embodiment, in particular, in the search result performed as described above, the music that the user has already played is excluded and displayed as the final search result on the display unit 30b. Thereby, the troublesomeness that the music data that the user has played once is displayed as the search result over and over again can be avoided. As a result, the convenience for the user can be improved more reliably.

  The present invention is not limited to the above embodiment, and various modifications can be made without departing from the technical idea. Hereinafter, such modifications will be described.

(1) When searching by excluding a history that is too old In other words, in this modified example, in the evaluation history as shown in FIG. 9, each piece of music data is associated with performance time information indicating the time when the user performed. ing. When the search from the remote controller 30 is performed as described above, among the many pieces of music data stored in the RAM 49, the music data whose performance time information is within a predetermined period (for example, within one year) from the time of the search. The search is executed only for the target.

  Thus, the evaluation history is not used for music data with a relatively old date when the user performed, and the search can be performed only for music data with a relatively new date when the user performed. If the user continues playing every day, chords with a high failure rate can gradually be played successfully, and the failure rate of chords with a high failure rate may decrease. When a search was performed using an evaluation history of song data with a relatively old date and time played by the user, the failure rate was high in the past even for codes that became successful as the user played daily There is a possibility that a failure code list is created by including the code in the failure code. There is a possibility that the search result does not change because the search result according to the failure code list including the chord having a high failure rate of the music with a relatively old music performance date is displayed many times. By performing a search only on music data with a relatively new date and time when the user performed, it is possible to avoid the possibility that the search result will not change due to the same search result being displayed many times. As a result, it is possible to display search results that change as the user plays music every day, thereby further improving user convenience.

(2) Variation of function sharing between server, control device and remote controller In the above example, the evaluation history (see FIG. 9) is created by the CPU 45 of the control device 20, and the failure code list (FIG. 10) is created by the remote control. The search based on the failure code list is also performed by the remote controller 30, but is not limited thereto. That is, the server 58 obtains the evaluation result, and creates an evaluation history by counting up each code, and creates a failure code list according to the created evaluation history. At this time, the control device 20 or the remote controller 30 may acquire the created failure code list from the server 58 and perform a search based on the failure code list. Alternatively, the server 58 obtains the evaluation result and creates an evaluation history by tabulating each code. The control device 20 or the remote controller 30 may acquire the evaluation history from the server 58, create a failure code list, and perform a search based on the created failure code list. In addition, the control device 20 obtains the evaluation results and creates an evaluation history by counting up each code, and creates a failure code list according to the created evaluation history. And the structure which performs the search based on the failure code list produced in the control apparatus 20 in the control apparatus 20 or the remote control 30 may be sufficient. Alternatively, the remote controller 30 obtains the evaluation results and creates an evaluation history by counting up each code, creates a failure code list according to the created evaluation history, and performs a search based on the created failure code list. The structure to perform may be sufficient. The present invention can be implemented in any of these configurations, and in these cases, the same effects as described above are obtained.

(3) Others In the above description, the example in which the user plays the electric guitar 4 has been described. However, the present invention is not limited to this. That is, instead of an electronic string instrument such as the electric guitar 4, acoustic guitar sounds such as a gut guitar or a folk guitar may be collected by a microphone and input to the phone jack 4a. Moreover, it is not restricted to a guitar, Other stringed instruments may be used. Furthermore, it is not limited to a stringed instrument, but may be a keyboard instrument, a wind instrument, a percussion instrument with a musical scale, or the like. In such a case, if the instrument can be evaluated based on whether or not it is performing corresponding to the chord progression of a plurality of chords, a musical instrument that does not produce chords but produces only single notes (bass guitar, wind instrument, etc.) However, the evaluation may be performed based on whether or not the sound is a sound to be generated along the chord progression (or whether or not the sound is a designated sound). In addition, the present invention is particularly effective when searching for music to be played by an instrument played by the fingering method.

  In addition, in the above, the arrow shown in FIG. 7 shows an example of the signal flow, and does not limit the signal flow direction.

  Further, the flowcharts shown in FIGS. 12, 13, 14 and the like do not limit the present invention to the procedure shown in the above-mentioned flow, and the addition / deletion or order of the procedures within the scope of the gist and technical idea of the invention. May be changed.

  In addition to those already described above, the methods according to the above-described embodiments and modifications may be used in appropriate combination.

  In addition, although not illustrated one by one, the present invention is implemented with various modifications within a range not departing from the gist thereof.

4 Electric guitar (musical instrument)
30 Remote control (music search device)
30b Display section (display means)
30c control unit 49 RAM (music data storage means)

Claims (5)

Created according to the performance result of the musical instrument player who played along the music data consisting of the progression of a plurality of chords, and among the plurality of chords, the failure code with no successful performance history by the musical instrument player and the An evaluation history acquisition means for acquiring evaluation history information in which an unskilled code that the instrument player has not mastered is recorded, including a high failure code in which a performance failure history of the instrument player is higher than a predetermined reference;
Based on the evaluation history information acquired by the evaluation history acquisition means, from the music data storage means storing the plurality of music data, the unskilled code among the plurality of music data stored in the music data storage means Music search means for searching music data not including
Display control means for causing the display means to display a search result of music data not including the unfamiliar code by the music search means;
Have
The evaluation history information further includes:
Among the plurality of chords, there is a success code having a performance history by the musical instrument player and no failure history, and a low failure code having a performance failure history by the musical instrument player lower than a predetermined reference. The proficiency code that the musical instrument player is proficient is recorded,
When there is no search result of music data that does not include the unfamiliar code by the music search means,
The music search means
A new search for music data including the low failure code among the plurality of music data stored in the music data storage means,
The display control means includes
A music search apparatus that newly displays a search result of music data including the low failure code by the music search means. The music search device according to claim 1,
From the search result displayed on the display means, further comprising a selection receiving means for receiving selection of music data to be played,
The display control means includes
A music search apparatus that displays, as a final search result, music data excluding the music data that has already been received by the selection receiving means among search results by the music search means. In the music search device according to claim 1 or 2,
The evaluation history information is
Performance time information indicating the time when the musical instrument player performed is associated with the music data,
The music search means
Of the plurality of music data stored in the music data storage means, the search is executed for the evaluation history information of music data whose performance time information is within a predetermined period from the search time. Music search device. Music data storage means for storing a plurality of music data each constituted by progression of a plurality of chords;
Music data reproduction means for reading out and reproducing the music data stored in the music data storage means;
A performance signal input means for inputting a performance signal output from the musical instrument by the performance of the musical instrument player according to the reproduction of the music data by the music data reproduction means;
According to the performance signal input by the performance signal input means in accordance with the reproduction of the music data, a failure code having no performance history of the performance by the musical instrument player and a performance by the musical instrument player among the plurality of chords Including an unskilled chord that the musical instrument player has not mastered, including a high failure chord whose failure history is higher than a predetermined standard, and among the plurality of chords, there is a success history of performance by the musical instrument player, An evaluation history in which a success code without a failure history and a learning code that the instrument player is accustomed to, including a success code having a performance failure history lower than a predetermined reference and a low failure code is recorded. An evaluation history creation means for creating information;
Evaluation history storage means for storing the evaluation history information created by the evaluation history creation means in association with the corresponding instrument player;
Based on the evaluation history information stored in the evaluation history storage means, among the plurality of music data stored in the music data storage means, music data that does not include the unfamiliar chord related to the specific instrument player Music search means for searching for,
Display control means for causing the display means to display a search result of music data not including the unfamiliar code by the music search means;
Have
The music search means
When there is no search result of the music data that does not include the unfamiliar code, the music data including the low failure code is newly searched among the plurality of music data stored in the music data storage unit,
The display control means includes
A music search system for newly displaying a search result of music data including the low failure code by the music search means. For the calculation means of the music search apparatus provided with operation means, display means, calculation means,
A failure code that is created according to the performance result of the musical instrument player who has played music data composed of a plurality of chord progressions, and has no success history of performance by the musical instrument player, and the musical instrument performance. An unskilled chord that has not been mastered by the musical instrument player, including a high failure chord that has a performance failure history that is higher than a predetermined reference, and a successful performance history of the musical instrument player among the plurality of chords And a learning code that the musical instrument player is familiar with, including a success code with no failure history and a low failure code whose performance failure history is lower than a predetermined standard. , Evaluation history acquisition procedure for acquiring evaluation history information,
Based on the evaluation history information acquired in the evaluation history acquisition procedure, from the music data storage means storing a plurality of the music data, the unskilled code among the plurality of music data stored in the music data storage means A music search procedure for searching for music data that does not contain
A display control procedure for causing the display means to display a search result of music data searched for in the music search procedure and not including the unskilled code;
When there is no search result of music data not including the unfamiliar code, a procedure for newly searching music data including the low failure code among the plurality of music data stored in the music data storage unit ;
A procedure for newly displaying the search results of the music data comprising the previous SL low failure code,
Music search program for running

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