JP2018010070A - Practice musical pieces generation device and method for generating practice musical pieces - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow a user to make a practice for playing an arbitrary musical piece well.SOLUTION: There is provided a method for generating practice musical pieces, which includes: a first step of acquiring musical piece data; and a second step of generating, from the musical piece data, different types of practice musical piece data indicating practice musical pieces having simpler music structures than the musical pieces indicated by the musical piece data acquired in the first step. The different types of practice musical piece data generated by the method for generating practice musical pieces are presented to a user in descending order of simplicity of the music structure and the user makes a practice of playing the practice musical pieces indicated by each of the practice musical piece data.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a technique for supporting musical instrument performance practice.

  In order to perform a specific song well, there are cases where the practice of the song is performed exclusively. For example, if a longing for playing a particular song was a motivation for buying a musical instrument, or someone with a hobby of playing a musical instrument said, “Please play my favorite song for my wedding. "When asked by a friend." However, if the difficulty of the song that you want to play well (hereinafter referred to as the target song) is high, the performance practice of simply repeating the performance of the target song will motivate you from impatience, anxiety, and irritation. May be frustrated. In view of this, a technique that makes it possible to practice effectively without difficulty has been proposed, and an example thereof is the technique disclosed in Patent Document 1.

  Patent Document 1 discloses a practice support device having music storage means, task music selection means, performance evaluation means, and practice music selection presentation means. The music storage means stores a plurality of exercise music pieces and various practice music pieces that can be effectively practiced when performing performance exercises for each of the assignment music pieces. The task song selection unit is a unit that allows the user to select one of a plurality of task songs stored in the song storage unit. The performance evaluation unit evaluates a performance performed by the user for the task song selected by the task song selection unit. The practice song selection / presentation means selects an optimum practice song from various practice songs stored in the song storage means based on the evaluation result by the performance evaluation means and presents it to the user.

Japanese Patent Laid-Open No. 10-187020

Ministry of Education, Culture, Sports, Science and Technology, “Current Study Guidance / Living Power 7. Questions about Music 7-1”, [online], <URL: http://www.mext.go.jp/a_menu/shotou/new-cs/ qa / 07.htm>

  However, the technique disclosed in Patent Document 1 has the following problems. That is, there is a problem that the target music of the user is not necessarily included in the plurality of task music stored in the music storage means, and practice support cannot be performed when the target music is not included.

  The present invention has been made in view of the problems described above, and it is an object of the present invention to provide a technique that allows a user to perform performance practice so that any song can be played well. .

  In order to solve the above-mentioned problems, the present invention provides an acquisition means for acquiring song data, and practice song data representing practice songs having a simplified music structure than the song represented by the song data acquired by the acquisition means. A practice song generating device having a generating means for generating from data.

  According to the present invention, by causing the acquisition means to acquire song data of a target song, practice song data representing a practice song for practicing performance of the target song is generated from the song data of the target song. Since the practice song data is generated from the song data of the target song, according to the present invention, it is possible to arbitrarily practice the performance of the song. The practice music has a simple music structure as compared to the target music. Generally, the simpler the music structure, the lower the difficulty of performance. For this reason, if it is the aspect which performs performance practice with the said practice music, the fall of motivation is avoided compared with the aspect which repeats performance practice of the target music itself.

  In a more preferred aspect, the generation unit generates practice song data representing a practice song having a music structure in common with at least a part of the music structure of the song represented by the song data acquired by the acquisition unit. According to such an aspect, the user of the practice support apparatus can perform the performance practice while keeping the motivation for the performance practice for successfully playing the target music higher than before. The reason is as follows.

  The practice song presented to the user by the practice support device disclosed in Patent Document 1 may be optimal from the viewpoint of practice effect, but the relationship between the practice song and the task song (the target song in this application) That is, the user may not always be able to grasp the significance of practicing performance with practice music. The target song that the user wants to perform well is the target song, so if the user does not understand the significance of performing the practice of the practice song, “What does it mean to practice with this practice song? Is it easy for users to be worried about questions such as “Is it really possible to play the target song well by repeating this practice?”, And a reduction in motivation cannot be avoided.

  On the other hand, the practice music represented by the practice music data generated by the practice music generation device of the present invention by causing the acquisition means to acquire the music data of the target music is a simplified version of the music structure of the target music. Yes, the music structure of the practice song is in common with at least part of the music structure of the target song. Since the music structure of the practice song is in common with at least a part of the music structure of the target song, the musical atmosphere and impression of the target song remain in the sensation of the practice song. As described above, since the musical tune and the impression of the target music remain in the practice music generated by the practice music generation device of the present invention, the user grasps the significance of performing the performance with the practice music. It is easy, and the user may be worried about the question “What does it mean to practice with this practice song?” And “Is it possible to play the target song successfully by repeating this practice?” Avoided. That is, according to the present invention, motivation is not reduced, and it is possible to allow the user to perform performance practice so that any song can be played well.

  There are various methods for generating practice song data, but one example is as follows. As the song data, data representing the music structure of the song in the arrangement of musical notes is used, and the generation unit analyzes the song data acquired by the acquisition unit and analyzes the music structure for each of the pitch axis, the time axis, and the strength axis. The skeleton of a note is specified, and notes are deleted and replaced according to the priority according to the skeleton and the music theory (for example, multiple notes that are continuous on the time axis have a time length equivalent to those notes. Practice song data is generated by performing at least one of replacement with one note. The generation means may generate one practice song data for each piece of song data acquired by the acquisition means, or may generate a plurality of types of practice song data for one song data. In the case of generating a plurality of types of practice song data for one piece of music data, it is preferable to generate a plurality of types of practice song data having different music structure simplifications.

  In the mode in which the generation means generates plural types of practice song data, the practice song generation device is provided with practice song presentation means for presenting the plurality of types of practice song data to the practitioner in the order according to the simplicity of the music structure. A practice support device may be configured. According to this aspect, the performance practice for successfully playing the target song is realized by performing the practice of the practice song presented by the practice song presenting means. In this aspect, since the practice song data is presented to the practitioner in the order according to the degree of simplicity of the music structure (for example, the music structure from the simplest to the gradually more complicated), the practitioner can select the target song. Can be practiced step by step according to your skill. That is, according to this aspect, it is possible to perform performance practice for an arbitrary music piece so that the music piece can be played well without difficulty, and the motivation for the performance practice is not reduced.

  As a more preferable aspect, the practice song presenting means selects the practice song data to be presented to the next practitioner according to the reproduction degree of the practice song represented by the practice song data presented to the practitioner. Conceivable. According to such an aspect, it becomes possible to perform the performance practice for successfully playing the target music according to the progress of the trainee. Here, various aspects can be considered for the evaluation of the degree of reproduction of the practice music by the practitioner and the presentation of the next practice music according to the evaluation result. For example, the performance sound of a practice song by a practitioner is collected, the time change of the pitch in the performance sound is analyzed, and the correlation value between the analysis result and the time change of the pitch represented by the practice song data of the practice music And when the correlation value is equal to or greater than a predetermined threshold, the practice song (practice song having a more complicated music structure) with more notes than the practice song is presented as the next practice song. Conceivable.

  In order to solve the above problems, the present invention provides a first step for obtaining song data, and a practice song having a simplified music structure as compared to the song represented by the song data obtained in the first step. And a second step of generating practice song data representing the song data from the song data. In addition, as a practice support method for a song using the practice song generated by this practice song generation method, a plurality of types of practice song data having different simplifications generated by the practice song generation method described above can be used for the simplicity of the music structure. You may provide the practice assistance method including the practice music presentation step shown to a practitioner in the order which responded.

  Another aspect of the present invention for solving the above problems is a program for causing a computer such as a CPU (Central Processing Unit) to execute the practice song generation method (or the practice support method in addition to the practice song generation method). That is, an aspect in which a program for causing the computer to execute the first and second steps (or the practice song presentation step in addition to the first and second steps) can be considered. By causing a control unit (CPU) of an information processing apparatus such as a tablet terminal or a notebook personal computer to operate according to the program, the information processing apparatus causes the practice music generation method (or practice support method) of the present invention to be executed. Is possible. Further, as another aspect for solving the above problem, an aspect of providing a program for causing a computer to function as the acquisition means and the generation means (or practice song presentation means in addition to the acquisition means and the generation means) is also considered. It is done.

  Various modes can be considered as specific modes of providing the program. Specifically, the program is written and distributed on a computer-readable recording medium such as a CD-ROM (Compact Disk-Read Only Memory) or a flash ROM (Read Only Memory), or via an electric communication line such as the Internet. A mode of distribution by downloading is considered.

It is a figure which shows the external appearance of the practice assistance apparatus 10 by one Embodiment of this invention. It is a figure which shows the electrical structural example of the practice assistance apparatus. 7 is a flowchart showing a flow of a practice support method executed by the control unit 100 of the practice support apparatus 10 according to a practice support program stored in a nonvolatile storage unit 134. It is a figure which shows an example of the rule table stored in the non-volatile memory | storage part 134 of the practice assistance apparatus 10. FIG. It is a figure which shows an example of the score of the practice music produced | generated according to the rule table. It is a figure which shows an example of the presentation order table stored in the non-volatile memory | storage part 134 of the practice assistance apparatus 10. FIG. It is a figure which shows the rule table of another aspect. It is a figure which shows the rule table of another aspect. It is a figure which shows the presentation order table of another aspect.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a diagram illustrating an appearance of a practice support device 10 according to an embodiment of the present invention.
As shown in FIG. 1, the practice support apparatus 10 is a tablet terminal, and includes a display unit 120a configured with a liquid crystal display or the like. The practice support apparatus 10 is preinstalled with a practice support program for causing the control unit to execute a practice support method that significantly shows the features of the present embodiment. The user of the practice support apparatus 10 can practice the performance of the target song while receiving support in accordance with the practice support method by causing the control unit of the practice support apparatus 10 to execute the practice support program.

  As will be described in detail later, the practice support device 10 has a music structure that is simplified from the target music when the target music is designated, and is common to at least a part of the music structure of the target music A plurality of types of practice songs each having the following music structure are generated. Then, the practice support apparatus 10 presents the plurality of types of practice songs to the user in order from the music having a simple music structure. Specifically, the practice support device 10 causes the display unit 120a to display an image of the musical score of the practice song. The user of the practice support apparatus 10 performs the performance of the target song by performing the musical instrument according to the score displayed on the display unit 120a. In general, the simpler the music structure, the lower the difficulty of performance. The user can perform the performance of the practice music in order from the lowest difficulty level, so that the user can successfully perform the target music without excessive effort and without reducing motivation.

  In addition, each of the plurality of types of practice songs generated by the practice support device 10 has a music structure in common with at least a part of the music structure of the target song. Have a common sense of hearing. That is, the musical atmosphere and features of the target song remain in each practice song. Each practice song has the musical atmosphere and impression of the target song, so the user can understand the significance of performing with those practice songs, which also leads to a decrease in motivation. Absent.

FIG. 2 is a diagram illustrating an electrical configuration example of the practice support apparatus 10.
As shown in FIG. 2, the practice support device 10 mediates data exchange between the control unit 100, an external device interface (hereinafter referred to as “IF”) unit 110, a user IF unit 120, a storage unit 130, and these components. Bus 140 to be used.

The control unit 100 is, for example, a CPU. The control unit 100 functions as a control center of the practice support apparatus 10 by operating according to various programs stored in the storage unit 130. The external device IF unit 110 is, for example, a USB (Universal Serial Bus) interface or a wireless LAN (Local
(Area Network) Interface, etc., that mediates data exchange with other external devices.

  The user IF unit 120 provides various user interfaces for allowing the user to use the practice support apparatus 10. As shown in FIG. 2, the user IF unit 120 includes a display unit 120a and an operation input unit 120b. The display unit 120a displays various images under the control of the control unit 100. The operation input unit 120b is a transparent pressure sensor provided so as to cover the display surface of the display unit 120a, and forms a so-called touch panel together with the display unit 120a. When the user presses any part of the operation input unit 120b with a finger or the like, the operation input unit 120b displays information indicating the pressed part (for example, the position coordinates when the upper left corner of the display surface of the display unit 120a is used as the origin). Information) is provided to the control unit 100. Thereby, the user's operation content is transmitted to the control unit 100. In the present embodiment, a transparent pressure sensor is used as the operation input unit 120b. However, the operation input unit 120b only needs to be capable of accepting a user's input operation and giving information corresponding to the operation content to the control unit 100, and uses a pointing device such as a mouse or a keyboard as the operation input unit 120b. May be.

As illustrated in FIG. 2, the storage unit 130 includes a volatile storage unit 132 and a nonvolatile storage unit 134. The volatile storage unit 132 is, for example, a RAM (Random Access Memory), and is used by the control unit 100 as a work area when executing various programs. The nonvolatile storage unit 134 is, for example, a flash ROM or EEPROM (Electrically
Erasable Programmable Read-Only Memory). The nonvolatile storage unit 134 stores various programs and various data. The program stored in the non-volatile storage unit 134 supports the practice of playing a song in addition to a kernel, a browser, a mailer (not shown in FIG. 2) for realizing an OS (Operating System), and the like. A practice support program is included.

  When the power supply (not shown in FIG. 2) is turned on or reset, the control unit 100 reads the kernel from the nonvolatile storage unit 134 to the volatile storage unit 132 and starts executing the kernel. The control unit 100 operating according to the kernel and realizing the OS can execute other programs in accordance with a user instruction. For example, when the execution of the browser is instructed, the control unit 100 reads the browser from the non-volatile storage unit 134 to the volatile storage unit 132 and starts the execution, and when the execution of the practice support program is instructed. Reads out the exercise support program from the non-volatile storage unit 134 to the volatile storage unit 132 and starts executing the program.

  FIG. 3 is a flowchart showing a flow of a practice support method executed by the control unit 100 according to the practice support program. As shown in FIG. 3, the practice support method of the present embodiment includes three steps of steps SA100, SA110 and SA120. Step SA100 is a target song acquisition step for acquiring song data of the target song. Step SA110 represents each practice song having a music structure simplified from the target song from the song data acquired in step SA100 and having a music structure in common with at least a part of the music structure of the target song. This is a practice song generation step for generating a plurality of types of practice song data. Step SA120 is a practice music presentation step for presenting each of the plurality of types of practice music data generated in step SA110 to the user to perform performance practice.

  A specific example of the process executed by the control unit 100 in the target song acquisition step SA100 is as follows. For example, the control unit 100 causes the display unit 120a to display an image of a screen that prompts the user to specify a target song (hereinafter referred to as a target song specifying screen). As a specific example of the target song designation screen, there is a screen that prompts input of target song identification information that uniquely indicates the target song, such as the song name and composer name of the target song. When the target song identification information is input by an operation on the operation input unit 120b, the control unit 100 communicates with the score database on the Internet via the external device IF unit 110, and the score data representing the score of the target song is converted to the song data. Get as data. The musical score data in the present embodiment refers to data representing the note number (pitch), note-on timing, and duration of each note constituting a song, and is, for example, MIDI data.

  In the present embodiment, a case where the song data of the target song is acquired from a score database on the Internet will be described, but the present invention is not limited to this. For example, the process executed by the control unit 100 in the target song acquisition step SA100 prompts the user to attach the recording medium (for example, USB memory) in which the song data of the target song is written to the external device IF unit 110, and the external device A process of reading music data of a target music from a recording medium attached to the IF unit 110 may be used. The musical score data is not limited to MIDI data, and may be image data or document data representing an image in which each musical note constituting a music is described in a musical score. In short, any data may be used as long as it represents the music structure of the target song with an arrangement of notes. The music data is not limited to the score data, and may be waveform data of the performance sound of the target music. This is because it is possible to convert waveform data into musical score data by applying a known technique.

  A specific example of the process executed by the control unit 100 in the practice song generation step SA110 is as follows. The control unit 100 analyzes the song data acquired in the target song acquisition step SA100 for each of the pitch axis, the time axis, and the strength axis, and determines the music structure of the song represented by the song data (that is, the target song). Identify the skeleton. Refer to Non-Patent Document 1 for details of “music structure” and “music structure framework”. Music structure refers to “elements that characterize music” and “mechanism of music”. “Elements that characterize music” include sound (timbre), time-to-sound relationship (rhythm, speed), continuous or interwoven relationship (melody, texture), volume change (strength), beat Flow, phrases, sound overlap, scale, key, harmony sound. “Music mechanism” means repetition, question and answer, change, vertical and horizontal relationship of music, and how to assemble music (form and structure). The framework of music structure is, for example, the arrangement of roots in harmony or the strong beat in rhythm.

  Next, the control unit 100 deletes notes and replaces notes (for example, a plurality of consecutive notes on the time axis) based on the priority of each note in accordance with the framework of the music structure of the target song and the music theory. A plurality of pieces of practice music data are generated by performing at least one of such as replacing a single note having a time length equivalent to the plurality of notes. When a certain music structure is expressed by musical notes, priority can be given to each musical note on the pitch axis and time axis according to music theory. In this embodiment, the control part 100 produces | generates several types of practice music data by deleting a note or replacing a note with respect to the music data of a target music according to the said priority. Since the practice song data is data obtained by performing at least one of note deletion and note replacement on the song data of the target song, the practice song data is data of the same type as the song data, that is, MIDI data.

  For example, in the case of a chord composed of “do”, “mi” and “so” sounds, the priority on the pitch axis is “do” which is the root tone, and then “so”. Is high, and “Mi” has the lowest priority. Therefore, for the target song with the chord “Domiso”, the practice song with the lowest difficulty can be generated by leaving only the root note (removing “Mi” and “So” from the chord). By deleting only “Mi” from the chord (that is, leaving the root and the sound with the highest priority next to the root), it is possible to generate the practice song with the next lowest difficulty. As for rhythm, the simpler the less difficult. For example, if the target song is composed of four consecutive sixteenth notes, replace the fourteenth sixteenth notes with a single quarter note to generate the least difficult practice song. Then, by replacing the fourteenth sixteenth notes with two eighth notes, it is possible to generate a practice song with the next lowest difficulty.

  In the present embodiment, in order to be able to generate a plurality of types of practice songs by a combination of note deletion and note replacement as described above, a rule table representing rules for note deletion and note replacement is added to the practice support program. Embedded (see FIG. 2). FIG. 4 is a diagram illustrating an example of such a rule table. For example, the rule “de quadrant” indicated by reference symbol R-7 in FIG. 4 leaves only the root of the chord (or “do” if the chord is “domiso”), and the chord is divided into four tenths. This is a rule that replaces a single quarter note when it is composed of a sixth note (or two eighth notes). In addition, the rule “do octo × 2” indicated by reference numeral R-5 in FIG. 4 is a chord root sound and a sound having the next highest priority after the root sound, for example, a chord “domiso”. In this rule, only “do” and “so” are left, and when the chord is composed of four consecutive sixteenth notes, it is replaced with two eighth octaves.

  For example, when the musical instrument to be practiced is a piano and the score of the left-hand part of the target song is the score indicated by reference numeral S-3 in FIG. 5, the control unit 100 applies the song data of the target song in FIG. By deleting and replacing the notes according to the rules indicated by the symbols R-n (n = 1 to 9), the practice corresponding to each score indicated by the symbols S-1 to S-9 in FIG. Song data is generated. Note that the practice song data obtained by performing the process according to the rule indicated by reference numeral S-3 is the same as the original song data. In the present embodiment, a case has been described in which a rule table representing rules for note deletion and note replacement is embedded in the practice support program. However, the rule table is stored in the nonvolatile storage unit 134 separately from the practice support program. You can keep it. In addition, the rule table is stored in a device (for example, a network compatible hard disk device or the like) that can be accessed from the practice support device 10 via an electric communication line such as the Internet, and the control unit 100 stores the practice song generation step SA110. It is also possible to access the device and refer to the rule table each time.

  A specific example of the process executed by the control unit 100 in the practice song presentation step SA120 is as follows. The control unit 100 displays the musical score images of the practice songs represented by each of the plurality of practice song data generated in the practice song generation step SA110 in order from the music structure having the simpler music structure, that is, from the one with the lower performance difficulty. The information is displayed on the display unit 120a in order. The musical score displayed on the display means 120a may be one in which musical notes are added to the musical notation indicated by each of the symbols Sn (n = 1 to 9) in FIG. 5, or a vertical score like a singing synthesis score. A musical score in which rectangles representing notes are arranged on a two-dimensional plane in which the axis represents the pitch and the horizontal axis represents the time axis may be used. In addition, what is necessary is just to use an existing technique suitably about the production | generation of the said various score images from MIDI data.

  In order to make it possible to present practice songs in ascending order of performance difficulty, as shown in FIG. 2, the practice support program has a presentation order table associated with the rule table (see FIG. 4). Is stored. Similar to the rule table described above, the presentation order table may be stored in the nonvolatile storage unit 134 separately from the practice support program, or from the practice support apparatus 10 via an electric communication line such as the Internet. It may be stored in an accessible device.

FIG. 6 is a diagram illustrating an example of the contents stored in the presentation order table. In FIG. 6, the numerical value indicated by each of the symbols P-n (n = 1 to 9) means the difficulty level of the practice song generated according to the rule R-n in FIG. 4, and the difficulty level is smaller as the value is smaller. Means low. When presenting the score of the practice song to the user according to the stored contents of the presentation order table shown in FIG. 6, for example, the score of the practice song may be presented to the user in the order of difficulty 1 → 2 → 3 → 4 → 5. In this case, the following four presentation orders (pattern A) to (pattern D) are conceivable.
(Pattern A)
Score S-7-> Score S-4-> Score S-1-> Score S-2-> Score S-3 (Score of the target song)
(Pattern B)
Score S-7 → Score S-8 → Score S-5 → Score S-2 → Score S-3 (the score of the target song)
(Pattern C)
Score S-7 → Score S-8 → Score S-5 → Score S-6 → Score S-3 (the score of the target song)
(Pattern D)
Score S-7 → Score S-8 → Score S-9 → Score S-6 → Score S-3 (the score of the target song)

  Which of (Pattern A) to (Pattern D) is used to present the practice song may be determined in advance, or each time the target song acquisition step SA100 is executed, the control unit 100 uses a pseudo random number or the like. May be determined. Further, regarding the switching of the musical score to be displayed on the display means 120a (switching to a musical score having a higher difficulty level than the currently displayed musical score, that is, whether or not the performance practice is advanced to the next step), the practice support device 10 It may be left to the user or the control unit 100 may make a determination. In the case of making the control unit 100 make a determination, for example, a microphone is connected to the external device IF unit 110 to collect a user's performance sound, and the above-described evaluation is performed according to the evaluation result of the score reproduction degree displayed on the display unit 120a Just make a decision. When the musical instrument played by the user is a MIDI-compatible electronic musical instrument, the evaluation may be performed by connecting the MIDI receiving device to the external device IF unit 110 and acquiring the user's performance information by the MIDI receiving device. . It should be noted that the existing scoring technique in karaoke or the like may be used as appropriate for evaluating the reproducibility of the score. Further, the evaluation result of the reproducibility may be scored and notified to the user in the same manner as in karaoke or the like, or the evaluation result may be notified to the user by displaying a character image corresponding to the score.

  By sequentially performing the performance of each practice song while watching the score displayed on the display means 120a in the above manner, the user is gradually encouraged to improve and eventually can successfully play the target song. As described above, according to the present embodiment, it is possible to cause the user to perform performance practice to be able to successfully perform the target music step by step in accordance with the progress. In addition, in the present embodiment, any of a plurality of types of practice music for practicing the performance of the target music is generated from the target music, and therefore can correspond to an arbitrary target music. In other words, according to the present embodiment, it is possible to perform performance practice for any music piece so that the music piece can be played well without deteriorating motivation.

Although one embodiment of the present invention has been described above, it goes without saying that the following modifications may be added to this embodiment.
(1) In the above embodiment, a plurality of types of practice song data are generated by combining the deletion of notes and replacement of notes according to the priority and applying them to the song data of the target song. The practice song data may be generated. For example, when a plurality of practice song data is generated only by deleting notes according to the priority, the rule table shown in FIG. 7 may be stored in the practice support apparatus 10, and according to the priority. When a plurality of pieces of practice music data are generated only by replacing notes, the practice support apparatus 10 may store the rule table shown in FIG. When the practice music is generated using the rule table shown in FIG. 7 or FIG. 8, the presentation order table shown in FIG. 9 may be stored in the practice support apparatus 10. Also, the rule table shown in FIG. 7 and the rule table shown in FIG. .

(2) In the above embodiment, a plurality of types of practice songs generated from the target song are presented to the user in order from the music structure that is simple (that is, from the lowest difficulty level). However, whether to present a practice song with a medium music structure (difficulty) first and then present a simpler or more complex one depending on the reproducibility of the performance of the practice song. You may make the control part 100 determine. Moreover, although the case where the difficulty level of the practice music presented to the user is increased by 1 has been described in the above embodiment, even if the difficulty level is increased such as 1 → 3 → 5 or 1 → 3 → 4 → 5. In addition, the user may be allowed to specify the manner of increasing the difficulty level.

(3) In the above-described embodiment, a training support program for realizing the practice support method of the present invention is installed in the tablet terminal in advance, and the control unit of the tablet terminal is operated according to the practice support program, so that the tablet terminal Was made to function as a practice support device of the present invention. However, the installation destination of the practice support program is not limited to the tablet terminal, and may be a stationary or notebook personal computer, a stationary or portable game machine for home use, a smartphone, and a PDA. In short, any information processing apparatus having a program execution function, that is, an information processing apparatus having a computer such as a CPU functioning as program execution means may be used. This is because the information processing apparatus can function as the practice support apparatus of the present invention by operating the computer according to the practice support program.

(4) In the above embodiment, the practice support method of the present invention is realized by software, but may be realized by hardware. Specifically, the acquisition means for executing the target song acquisition step, the generation means for executing the practice song generation step, and the practice song presentation means for executing the practice song presentation step are each configured by an electronic circuit. A practice support apparatus may be configured in combination.

(5) In the above embodiment, an example of the practice support apparatus of the present invention has been described. However, the practice presentation function is omitted from the practice support apparatus, that is, the acquisition means for acquiring song data and the acquisition means. There may be provided a practice music generation device comprising: generation means for generating practice music data representing practice music having a simplified music structure from the music data represented by the acquired music data. By performing the practice of the practice song represented by the practice song data generated by causing the acquisition means of the practice song generation apparatus to obtain the song data of the target song, the target song can be played well. This is because there is no change in that the performance practice can be performed without causing a decrease in motivation, and there is no change in being able to cope with an arbitrary target song.

(6) In the above embodiment, the case where a single information processing apparatus is caused to function as the practice support apparatus of the present invention has been described. However, the practice support apparatus of the present invention may be realized by cooperating a plurality of information processing apparatuses. For example, an aspect in which any one of a plurality of information processing devices connected to the Internet functions as the acquisition unit and the generation unit, and an information processing device different from the information processing device functions as a practice song presentation unit, or a plurality A mode in which different pieces of practice music data are generated in each of the information processing apparatuses can be considered.

  DESCRIPTION OF SYMBOLS 10 ... Practice support apparatus, 100 ... Control part, 110 ... External apparatus IF part, 120 ... User IF part, 120a ... Display means, 120b ... Operation input means, 130 ... Memory | storage part, 132 ... Volatile memory part, 134 ... Nonvolatile Sex memory, 140 ... Bus.

Claims (8)

Obtaining means for obtaining song data;
Generating means for generating practice music data representing practice music having a simplified music structure from the music data represented by the music data acquired by the acquisition means;
A practice song generating device having The generation means generates practice song data representing practice music having a music structure in common with at least a part of the music structure of the song represented by the song data acquired by the acquisition means, from the song data. Item 3. The practice song generating device according to Item 1. The song data obtained by the obtaining means is data representing the music structure of the song by an arrangement of notes,
The generating unit analyzes the music data acquired by the acquiring unit to identify a musical structure frame for each of the pitch axis, the time axis, and the dynamic axis, and the priority of the notes based on the frame and the music theory The practice song generation apparatus according to claim 2, wherein the practice song data is generated by applying at least one of note deletion and note replacement to the song data acquired by the acquisition unit according to the method. The generating means includes
4. The practice song generation apparatus according to claim 3, wherein the practice song data is generated according to the stored contents of a rule table in which data representing rules for at least one of note deletion and note replacement is stored.   The practice according to any one of claims 1 to 4, wherein the generation means generates a plurality of types of practice song data having different music structure simplifications from the song data obtained by the obtaining means. Song generator. 6. The practice song generating device according to claim 5, further comprising practice song presenting means for presenting a plurality of types of practice song data generated by the generating means to a practitioner in an order corresponding to the simplicity of the music structure. . The practice song presenting means selects practice song data to be presented next in accordance with the reproducibility of the performance of the practice song represented by the practice song data presented to the practitioner. Item 7. A practice song generation device for a song according to item 6. A first step of obtaining song data;
A second step of generating, from the song data, practice song data representing a practice song whose music structure is simplified compared to the song represented by the song data acquired in the first step;
A practice song generation method characterized by comprising:

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