JP5811448B2 - Expected practice amount providing device, expected practice amount providing method, expected practice amount providing system, program, and electronic musical instrument - Google Patents

Description

  The present invention is a technique for informing a user of an electronic musical instrument having a support function that assists in learning a performance technique, the amount of practice required to acquire the expected performance technique when using the support function expected at an arbitrary time. It is about.

  Conventionally, in an electronic piano (including an electronic keyboard), which is one of electronic musical instruments, a support function is provided to help a user learn a performance technique by playing (practicing) a practice song prepared in advance. The ones provided are put into practical use. As a support function, for example, as described in Patent Document 1 below, LEDs (Light Emitting Diodes) indicating keys to be operated are sequentially turned on in accordance with the progress of practice songs prepared in advance. It enlarges the score and lowers the accompaniment tempo. By using the support function, the user can learn the performance technique relatively easily.

  In addition, for example, in Patent Document 2 below, the performance contents of a practice song that should be used as a model for data that shows the performance of the user performed when the user performed the practice song, that is, practiced on an electronic piano. The technique of acquiring the progress of a performance technique by comparing with the data which shows this, and showing the temporal change to a user visually is described.

JP-A-9-237088 JP 2004-184757 A

  By using the support function described above, it becomes possible for the user to learn the performance technique relatively easily, and as described above, if the time change of the performance technique is informed, the user can practice the previous practice. Achievements can be confirmed.

  By the way, it is indispensable to repeatedly practice performances such as practice songs in order to acquire performance techniques such as an electronic piano. For this reason, it is desirable to inform the user of the amount of practice (practice time, number of practice, etc.) before the performance technique can be acquired for the practice song currently being practiced. In other words, it is desirable to inform the user of the amount of practice until the performance technique is acquired in a countdown manner. However, the above-described technique has a problem that it cannot be realized.

The present invention has been made in view of such conventional problems, and uses a support function that is expected at any time for a user of an electronic musical instrument that is provided with a support function that assists in learning performance techniques. It is an object of the present invention to provide an expected practice amount providing apparatus, an expected practice amount providing method, an expected practice amount providing system , a program , and an electronic musical instrument for informing an expected practice amount required for acquiring performance techniques when practicing.

To solve the above problem, in the present invention, as many users each history performance practice of performing performance practice, usage and performance art each support function that helps to learn playing techniques used in each performance practice From the storage means for storing the progress level, the first progress level of the other user corresponding to the latest progress level of the specific user, and the other user's speed level corresponding to the target progress level of the specific user. And a total usage amount obtained by totaling the usage amounts of the respective support functions in the improvement levels from the first progress level to the second progress level of the other user. The total use amount acquisition means for acquiring the latest improvement level for the specific user and the difference between the improvement level acquired prior to the latest improvement level for the specific user. Based on a difference between a first improvement ability acquisition means for acquiring a performance skill improvement ability, the first improvement degree related to the other user, and an improvement degree acquired prior to the first improvement degree, Based on a ratio of the improvement ability of the specific user to the improvement ability of the other user based on a ratio of the improvement ability of the specific user with respect to the improvement ability of the other user. The correction means for correcting the acquired total usage amount, and the prediction for acquiring the difference between the corrected total usage amount and the usage amount of each support function with respect to the latest improvement degree of the specific user as an expected practice amount and practice amount acquisition device, the expected amount of practice providing means for providing a predicted amount of practice acquired by the expected amount of practice acquisition unit to the electronic musical instrument in which the particular user uses, further comprising a And butterflies.

  ADVANTAGE OF THE INVENTION According to this invention, it is required for the user of the electronic musical instrument in which the support function which assists acquisition of a performance technique is prepared to acquire the performance technique in the case of practicing using the support function expected at an arbitrary time. It is possible to inform the expected practice amount.

It is a system configuration figure showing a support function recommendation system concerning the present invention. It is a conceptual diagram which shows the information previously memorize | stored in the electronic musical instrument, and the information memorize | stored at any time in an electronic musical instrument. It is a key map showing progress related information transmitted from an electronic musical instrument to a function recommendation server. It is a conceptual diagram which illustrates the data stored in the progress information database. It is a flowchart which shows the support function recommendation process of a function recommendation server. It is a flowchart which shows a similarity list acquisition process. It is a flowchart which shows a function total list acquisition process. It is a flowchart which shows a function total value acquisition process. It is a flowchart which shows an improvement capability list acquisition process. It is a flowchart which shows an estimated practice time list acquisition process.

  Hereinafter, an embodiment of the present invention will be described. FIG. 1 is a system configuration diagram showing a support function recommendation system according to the present invention. This support function recommendation system includes a function recommendation server 1 that can be connected to each other via the Internet 100, and a large number of electronic musical instruments 2, 2, 2,.

Here, in this embodiment, each electronic musical instrument 2 is an electronic piano or an electronic keyboard. In addition, each electronic musical instrument 2 has a plurality of types of support functions for helping the user to acquire performance techniques when practicing practice songs prepared in advance. As the electronic musical instrument 2 has a support function, as in the electronic musical instrument described in the background art, for example, the LED indicating the key to be operated is sequentially turned on in accordance with the progress of the performance of the music, or the score is displayed. This is to enlarge the display or to lower the accompaniment tempo. Further, each electronic musical instrument 2 has a function of acquiring the progress of the user's performance technique related to the practice music and notifying the user when the user plays any practice music.
On the other hand, the function recommendation server 1 is a guideline of practice time for each function such as how much of the support functions can be used in the future to practice the performance technique in response to a request from the electronic musical instrument 2 The function recommendation information indicating the expected practice time is provided to the electronic musical instrument 2.

Details of the support function recommendation system will be described below with reference to the drawings.
(Electronic musical instrument)
As shown in FIG. 1, the electronic musical instrument 2 includes a central processing unit (CPU) 21 that controls the entire musical instrument, a read-only memory (ROM) 22, a random-access memory (RAM) 23, a sound system 24, a performance A keyboard 25 to be operated, a display unit 26, a switch unit 27, a performance history memory 28, and a communication control unit 29 are provided. Although not shown, the CPU 21 includes a built-in clock having a calendar function for obtaining the current date and time.

  The ROM 22 stores various types of programs for causing the CPU 21 to control the entire musical instrument and various pieces of music related information regarding a plurality of practice songs.

  FIG. 2A is a conceptual diagram showing the song related information 201. The song-related information 201 includes a song ID for identifying a practice song, a song name, the time signature of the song, the total number of notes indicating the total number of notes and pauses of the practice song, and a number for identifying sequence data for performance of the practice song. It is comprised from sequence ID which shows. FIG. 2B is a conceptual diagram showing the sequence information 202 of the practice song indicated by the sequence ID. The sequence information 202 is composed of a sequence ID indicating a number for identifying sequence data of the practice music, and sequence data representing the content of the practice music, that is, the score of the practice music.

  The RAM 23 is a working memory for the CPU 21, and various data are stored in the RAM 23 as necessary.

  The sound system 24 outputs a sound source unit that generates sound waveform data according to the operation of the keyboard 25, a D / A converter that converts the waveform data into an analog signal, an amplifier that amplifies the analog signal, and outputs the analog signal as sound. It consists of a speaker etc.

  The display unit 26 includes an LCD (Liquid Crystal Display) (not shown) and a plurality of LEDs arranged on the keyboard 25 for each key.

  The switch unit 27 includes a power switch and a plurality of switches for the user to perform various settings regarding the operation of the electronic musical instrument 2. Various settings related to the operation of the electronic musical instrument 2 include setting of a song to be practiced, that is, a practice song, whether or not to use a support function when practicing a song, and setting of the type of support function to be used. It is.

  The performance history memory 28 includes a nonvolatile memory such as a flash memory in which stored data can be rewritten as needed. In the performance history memory 28, performance information representing the contents of the performance performed by the user is stored as needed. FIG. 2C is a conceptual diagram showing the performance information 203. The performance information 203 includes date and time and performance data representing the actual performance content by the user. The date / time is the year / month / day / hour / minute / second when the storage of the performance data is completed, and the performance data has the same structure as the sequence data stored in the ROM 22.

  Furthermore, the performance history memory 28 stores function usage information indicating the usage status of the support function by the user for each practice song. FIG. 2D is a conceptual diagram showing the function usage information 204 of each practice song. The function usage information 204 includes a song ID for identifying a practice song, and a usage time for each support function counted for each type of support function (function 1 to function 4 in the figure) prepared in the electronic musical instrument 2. Composed. The usage time related to the support function may be the number of times of use as long as it is information indicating the usage amount of the support function.

  The communication control unit 29 performs data communication with the function recommendation server 1 in accordance with an instruction from the CPU 21.

  In the electronic musical instrument 2, the CPU 21 performs the following processing by operating according to the program stored in the ROM 22. That is, every time the user practices (plays) a practice song using any one of the support functions, the CPU 21 corresponds to the function (support function type) in the function usage information 204 stored in the performance history memory 28. Update usage time of.

  In addition, the CPU 21 newly stores the performance information 203 in the performance history memory 28 when the user practices (plays) a practice song in a state where the progress acquisition mode is set for the electronic musical instrument 2. , To acquire the progress of the user's performance skills related to the practice song.

  Here, the progress is a numerical value of the performance technique when the user plays an arbitrary practice song. Specifically, it is the total number of notes indicating the total number of notes and pauses in the practice song, and performance data The value of progress when the sequence data of the practice music and the practice song completely match is the total number of notes.

  When acquiring the progress, the CPU 21 stores performance data representing the performance of the performance performed by the user in the performance history memory 28 at any time, and compares the performance data with the sequence data of the practice music after the performance is completed. get. Specifically, the performance data is compared with the sequence data for each note (note and pause). If there is a scale error, there is an extra note, or if one note is missing. , Subtract 1 from the total number of notes, and use the final number of notes, that is, the number of correctly played notes, as the improvement.

  It should be noted that the specific contents of the progress described here and the acquisition method thereof are merely examples, and the specific contents of the progress and the acquisition method thereof are arbitrary in the present invention.

  Then, the CPU 21 recommends, via the communication control unit 29, the improvement level related information including the acquired progress level and the usage time of the support function stored as the function usage information 204 for each type in the performance history memory 28. Send to server 1. In addition, after transmission, the usage time of each support function (function 1-function 4) regarding the practice music which acquired the progress degree memorize | stored in the performance history memory 28 is initialized.

  FIG. 3 is a conceptual diagram showing a configuration of the progress-related information 301 transmitted from the CPU 21 to the function recommendation server 1. The progress-related information 301 includes user ID, song ID, function 1 to function 4 values (use time), progress, and date / time.

  Here, the user ID is a user number for identifying the user. In the following description, it is assumed that the user number is a serial number starting from 1 registered in advance for each electronic musical instrument 2 user. The date and time is the year, month, day, hour, minute, and second when data is registered when the progress related information 301 is collected, that is, when the progress related information 301 is transmitted to the function recommendation server 1.

  Further, the CPU 21 receives the function recommendation information transmitted from the function recommendation server 1 in response to the transmission of the progress-related information, the recommendation order for each type of support function indicated by the received function recommendation information, and The predicted practice amount is displayed on the LCD of the display unit 26.

  Here, the recommendation order displayed on the LCD by the CPU 21 is to inform the user of a support function suitable for use in practicing the practice music for which the user has transmitted the progress related information, as will be described later. This will let the user know if they will be able to play practice songs more comfortably.

  In addition, the predicted practice amount that the CPU 21 displays on the LCD is the practice amount that is expected to be required for mastering the performance technique for the practice song that has transmitted the progress related information when each support function is used. It tells the user for each type of support function how much practice they will be able to play.

(Function recommendation server)
On the other hand, the function recommendation server 1 includes a communication control unit 11, a control unit 12, a program data storage unit 13, and an improvement information database 14 as shown in FIG.

  The communication control unit 11 transmits / receives data to / from each electronic musical instrument 2 connected via the Internet 100.

  The control unit 12 controls the operation of the communication control unit 11 based on the program stored in the program data storage unit 13, and uses the above-described progress degree related information transmitted from each electronic musical instrument 2 as the progress level information database 14. To remember. Although not shown, the control unit 12 includes a CPU, a peripheral circuit of the CPU, a working memory such as a RAM, and the like.

  FIG. 4 is a conceptual diagram illustrating an example of data (advance level related information) stored in the progress level information database 14. In the progress information database 14, each data constituting the progress related information is stored as one record. Note that the values of the fields shown in FIG. 4 are not actual values, but are symbolized for identification.

  Further, here, each record is arranged in the order of user ID, song ID, and date and time. That is, for example, in the record group with the user ID “uid1” and the song ID “sid1”, the date and time values “dt1101, dt1102, dt1103,... Dt1108” are in ascending order.

  In addition, while the same user repeats the performance (practice) of the same song, the level of improvement increases or decreases, but here, only the data when the level of improvement is always higher than the previous level is always improved. It is assumed that a new record is stored in the information database 14. That is, in the record group with the user ID “uid1” and the song ID “sid1” shown in FIG. 4, the progress value “sk1101, sk1102, sk1103,... Sk1108” is also the same as the date and time value. Assume that they are arranged in ascending order.

  In the function recommendation server 1, after the control unit 12 stores the progress level related information transmitted from the arbitrary electronic musical instrument 2 in the progress level information database 14, a support function to be described later shown in FIGS. 5 to 10. Execute the recommendation process.

  Support function recommendation processing to be described later is classified according to function such as how much and how much of a plurality of support functions should be used to practice the electronic musical instrument 2 that has transmitted progress-related information. Is provided to the electronic musical instrument 2 with function recommendation information indicating the expected practice time. Note that the function recommendation information provided to the electronic musical instrument 2 in the present embodiment includes information indicating a support function suitable for learning the performance technique when the user practices any practice music.

  First, an outline of the support function recommendation process executed by the control unit 12 will be described below. When the user of the electronic musical instrument 2 practices the practice music, any type of support function is used as appropriate. By repeating the practice, the performance technique of the practice song gradually improves, and eventually improves to the stage where the practice song can be played.

  In the support function recommendation process of the present embodiment, when the degree of improvement described above becomes 90% or more of the total number of notes of the practice song, when a specific practice song can be played by any user, Assume. More specifically, referring to FIG. 4, for example, for a user whose user ID is uid1, the progress value sk1107 for the practice song whose song ID is sid1 is 90% or more of the total number of notes of the practice song. Then, it is assumed that the practice song can be played at the date and time of dt1107.

  Here, the user whose user ID is uid1 has improved by using some support function, for example, until the improvement level reaches the stage of sk1102 to sk1107. When the viewpoint is changed, when the values of the respective functions (function 1 to function 4) of the six records from dt 1102 to dt 1107 are summed individually, the specific function having the maximum value is improved from sk 1102 to sk 1107. It can be judged that it is the most frequently used function in the practice process until it reaches.

  When the total value of each of the above functions (function 1 to function 4) is F1 to F4, the total value F1 of function 1 is (f1v1102 + f1v1103 + flv1104 + f1v1105 + nf1v106 + f1v1107), and the total value F2 of function 2 is (f2v1102 + f2v1103 + f2v1104 + f2v3 + f3v3) Is (f3v1102 + f3v1103 + f3v1104 + f3v1105 + f3v1106 + f3v1107), and the total value F4 of the function 4 is (f4v1102 + f4v1103 + f4v1104 + f4v1105 + f4v1106 + f4v1107).

  Similarly, for example, for other users whose user ID is uid2, if the progress levels corresponding to the above-described progress levels sk1102 and progress level sk1107 for the same practice music are sk2104 and sk2107, respectively, I can say that. That is, for other users whose user ID is uid2, when the values of each function (function 1 to function 4) of four records with date and time dt2104 to dt2107 are summed individually, the specific function whose value is the maximum However, it can be determined that this is the most frequently used function in the practice process until the progress level reaches from sk2104 to sk2107.

  In this case, the total value F1 of the function 1 is (f1v2104 + f1v2105 + flv2106 + f1v2107), the total value F2 of the function 2 is (f2v2104 + f2v2105 + f2v2106 + f2v2107), and the total value F3 of the function 3 is (f3v2104 + f3v + 105 + f3v10 + f3). It is.

  Therefore, when a total value for each function (F1 to F4) is acquired for each user for a large number of users, and the total value for each function (F1 to F4) for each user is totaled for each function, the value is maximum. The specific function that becomes the most frequently used support function (specific function) in a large number of users, from the stage where the improvement level corresponds to sk 1102 (and sk 1102) to the stage of sk 1107 (and sk 2107) Can be determined.

  In this case, if the total value F1 of the function 1 of the user whose user ID is uid1 is Z11, the total value F1 of the function 1 of the user whose user ID is uid2 is Z21,. The total value of function 1 is Z11 + Z21 + Z31 +... Zn1. Similarly, the total value of function 2 is Z12 + Z22 + Z32 +... Zn2, the total value of function 3 is Z13 + Z23 + Z33 +... Zn3, and the total value of function 4 is Z14 + Z24 + Z34 +.

  Here, if you use the support function as a practice method, the practice method using the specific function above is a practice method for many users who can actually play a specific practice song. This is a successful example of the method.

  Therefore, any user can play a practice song when the current progress value regarding the practice song with the song ID sid1 is a value corresponding to the above improvement degree sk1102 (and sk1102). If a practice method similar to that for many users is adopted, it can be judged that there is a high possibility that the practice song can be played without difficulty.

  In other words, when the total values (F1 to F4) for each function of a large number of users who can play the practice songs are summed for each function, the higher the value, the more effective it is to acquire the performance technique. It can be judged that it is higher.

  On the other hand, considering the practice methods of many users who have become able to play a specific practice song, the type of support function actually used varies depending on the individual user, and it reflects the preferences of each user. Yes.

  Therefore, in the support function recommendation process according to the present embodiment, the total value (F1 to F4) for each function of a large number of users who can play the practice song is not a value obtained by summing up for each function, but the following values are used. The evaluation value indicates the degree of effectiveness in each function (function 1 to function 4).

  That is, the weighted average of the total value by function is obtained using the similarity of the practice method with the user who is recommended for the support function for each user who can play a specific practice song, and it is used for each function. The evaluation value (score described later) indicating the degree of effectiveness in (Function 1 to Function 4). Then, a recommendation order is determined for each of the plurality of support functions based on the evaluation value.

  It should be noted that the degree of similarity of the practice method between the user to be recommended for the support function and another user, that is, the degree indicating whether or not the practice method is similar can be calculated by several methods. As a method for calculating the similarity, for example, there is a method of adding a reciprocal by adding 1 to the Euclidean distance or the Manhattan distance, and a method of obtaining a Pearson correlation coefficient, a Tanimoto coefficient, a Jaccard coefficient, etc. as the similarity, as described later. In the support function recommendation process of this embodiment, the Pearson correlation coefficient is used.

  Furthermore, in the support function recommendation process of the present embodiment, it is an approximate practice time for each function that indicates how much practice should be performed using each of the support functions before the practice song can be played. Get some expected practice time.

  For example, in the example shown in FIG. 4, a user with a user ID of uid9 is practicing a practice song with a song ID of sid1, and the progress value at that time is sk9103. When the high support function is function 3, the expected practice time for function 3 can be obtained as follows.

  Here, among the many users who can play the practice songs, the other user who has the highest similarity in the practice method is the user with the user ID uid2, and the user with uid2 The improvement level corresponding to the current improvement level sk9103 is the improvement level sk2104 of the record whose date and time is dt2104, and further the improvement level when the record is 90% or more of the total number of notes in the practice song, the improvement level of the record whose date and time is dt21047 Assume a case of sk2107.

  In this case, for the user of uid2, the function total value F3 of the function 3 described above, that is, (f3v2104 + f3v2105 + f3v2106 + f3v2107) is the total time of actually using the function 3 until the practice song can be played.

  Therefore, if the performance skill of the user of uid9 is the same as the skill of improvement of the user of uid2, the expected practice time related to function 3 is the function 3 of the record whose date is dt9103 from the function total value F3 of function 3. It is the time when the value of is subtracted.

  However, the performance skill improvement ability of the user with the user ID uid9 is not necessarily the same as the improvement ability of the user with the user ID uid2. Therefore, when calculating the expected practice time, first, regarding the function 3, the user's improvement ability SP23 of uid2 and the user's improvement ability SP93 of uid9 are acquired.

  The user's progress ability SP23 of uid2 indicates the difference between the progress sk2104 of the record when the date is dt2104 and the progress sk2103 when the date and time immediately before is dt2103, and the function 3 when the date is dt2104 The value is divided by the usage time F3V2104. That is, SP23 = (sk2104−sk2103) / F3V2104.

  Similarly, the improvement ability SP93 of the user of uid9 calculates the difference between the current improvement level sk9103 in the latest record and the improvement level sk9102 when the date and time immediately before that is dt9102 in function 3 in the latest record. The value is divided by the usage time F3V9103. That is, SP93 = (sk9103−sk9102) / F3V9103.

  Next, by multiplying the total value F3 of the function 3 by the relative ratio of the improvement capabilities SP93 and SP23 between the two, the relative function total value RF3 that is a relative total value according to the improvement capability SP93 of the user of uid9. To correct. That is, RF3 = F3 × SP23 / SP93.

  Note that the relationship between the total value F3 of the function 3 and the relative function total value RF3 is F3> RF3 if the relationship between the improvement ability SP93 of the uid9 user and the improvement ability SP23 of the uid2 user is SP93> SP23, Conversely, if SP93 <SP23, F3 <RF3.

  Then, the time when the value of the function 3 of the record whose date is dt9103 is subtracted from the corrected relative function total value RF3 is set as the expected practice time for the function 3. That is, it is used as a guideline for practice time using the support function of the function 3 expected until the practice music can be played when the progress value is sk9103.

  Next, the content of the support function recommendation processing by the control unit 12 will be specifically described with reference to the flowcharts shown in FIGS.

  As shown in FIG. 5, in the support function recommendation process, the control unit 12 first recommends a support function suitable for learning the performance technique in the progress related information newly stored in the progress information database 14. The user ID and the song ID of the target user (hereinafter, also simply referred to as the user) are confirmed (step S1).

  Next, the control part 12 performs the similarity list acquisition process shown in FIG. 6 (step S2). Similarity list acquisition processing is similar to how the practice method (how to use the support function) of the practice song indicated by the song ID confirmed in step S1 is similar to that of the person other than the principal. This is a process of acquiring the degree list (W1 to Wn).

  As shown in FIG. 6, in the similarity list acquisition process, the control unit 12 first sets 1 to a user number i indicating a user (step S101). If the user number i is the user ID of the user (step S102: YES), the control unit 12 saves the similarity Wi of the user as 0 (step S103), and then increments the user number i (step S104). ). Thereafter, the control unit 12 performs the processing from step S106 to step S111 until the user number i exceeds the maximum value n (step S105: NO).

  If the user number i is not the user ID of the user (step S102: NO), the control unit 12 continues until the user number i exceeds the maximum value n (step S105: NO). The process of S111 is performed.

  In the processing of step S106, the control unit 12 determines the processing target from all the records of the comparison partner whose user ID is the user number i in the large number of progress related information (FIG. 4) stored in the progress information database 14. The first record is searched for which the practice music and the music ID are the same, and the value of the improvement is the closest to the improvement of the person (however, the improvement of the person is more than the improvement).

  At this time, if the first record does not exist in the progress information database 14 (step S107: NO), the control unit 12 returns to the process of step S103, and the similarity of the comparison partner whose user ID is the user number i. Save Wi as 0.

  On the other hand, when the first record exists in the progress information database 14 (step S107: YES), the control unit 12 determines the value of function 1 to function 4, that is, for each type of support function, from the first record. Usage amount (usage time or number of uses) is acquired (step S108).

  Next, the control unit 12 this time, each value of the function 1 to the function 4 in the latest record of the person who is the improvement degree related information newly stored in the improvement degree information database 14 and the function in the first record of the comparison partner Using the values of 1 to 4 as parameters, the Pearson correlation coefficient γ is calculated from the following equation (1) (step S109).

  In Expression (1), X is each value of function 1 to function 4 in the latest record of the principal. Y is each value of function 1 to function 4 in the first record of the comparison partner. N is the number of functions 1 to 4 (support function types), that is, four.

  The contents of Expression (1) will be specifically described with reference to the data illustrated in FIG. For example, the song ID is sid1, the user's user ID is uid9, the progress of the person's latest record (current progress) is sk9103, the user ID of the comparison partner is uid1, and the first record of the comparison partner When the progress in is sk1102, the content of equation (1) is as follows.

  That is, ΣX is (flv9103 + f2v9103 + f3v9103 + f4v9103). Further, ΣXY is (flv9103 × flv1102 + f2v9103 × f2v2102 + f3v9103 × f3v1102 + f4v9103 × f4v1102). In addition, Σ (X ^ 2) is (flv9103 ^ 2 + f2v9103 ^ 2 + f3v9103 ^ 2 + f4v9103 ^ 2). Also, Σ (Y ^ 2) becomes (f1v1102 ^ 2 + f2v1102 ^ 2 + f3v1102 ^ 2 + f4v1102 ^ 2).

  For example, when the user ID of the comparison partner is uid2 and the progress in the first record of the comparison partner is sk2104, the content of the expression (1) is as follows.

  That is, ΣX is (flv9103 + f2v9103 + f3v9103 + f4v9103). Also, ΣXY is (flv9103 × flv2104 + f2v9103 × f2v2102 + f3v9103 × f3v2104 + f4v9103 × f4v2104). Further, Σ (X ^ 2) is (flv9103 ^ 2 + f2v9103 ^ 2 + f3v9103 ^ 2 + f4v9103 ^ 2), and Σ (Y ^ 2) is (f1v2104 ^ 2 + f2v2104 ^ 2 + f3v2104 ^ 2 + f4v2104 ^ 2).

  Thereafter, the control unit 12 adds the value “γ + 1” obtained by adding 1 to the Pearson correlation coefficient γ calculated in step S109 to the similarity of the practice method with the comparison partner whose user ID is the user number i. It stores as degree Wi (step S1010). The reason for using the value obtained by adding 1 to the Pearson correlation coefficient γ without using the Pearson correlation coefficient γ as the similarity as it is is that the Pearson correlation coefficient γ obtained from the equation (1) is −1 to 1. This is because the similarity Wi is set to a positive value for convenience of subsequent processing.

  Thereafter, the control unit 12 increments the user number i to change the comparison partner (step S111), returns to the process of step S102, and repeats the above-described process. Then, when the user number i exceeds the maximum value n (step S105: YES), the control unit 12 sets the similarity W1 to n of each user as a return value (step S112) and ends the similarity list acquisition process. Then, the process returns to the process of FIG.

  Subsequently, the control unit 12 executes the function total list acquisition process shown in FIG. 7 (step S3). The function total list acquisition process is the total amount of usage for each function (type of support function) for each user, and the progress level is based on the progress level corresponding to the current progress level of the person being processed. A list (Z11-Zn1, Z12-Zn2, Z13-Zn3, Z14-Zn4) of the total amount of usage for each function (support function type) used until reaching the above-mentioned target achievement level is obtained. It is a process to acquire.

  As shown in FIG. 7, in the function total list acquisition process, the control unit 12 first sets 1 to a user number i indicating a user (step S201). If the user number i is the user ID of the user (step S202: YES), the control unit 12 uses the total amount of each function related to the user (hereinafter referred to as the total value of each function) Zi1, Zi2, and so on. After storing Zi3 and Zi4 as all 0 (step S203), the user number i is incremented (step S204). Thereafter, the control unit 12 performs the processing from step S206 to step S208 until the user number i exceeds the maximum value n (step S205: NO).

  If the user number i is not the user ID of the user (step S202: NO), the control unit 12 continues until the user number i exceeds the maximum value n (step S205: NO). The process of S208 is repeated.

  In step S206, the control unit 12 performs the function total value acquisition processing illustrated in FIG. 8, and uses the total values F1 to F4 of the usage amounts for each function (support function type) for the specific comparison partner whose user ID is the user number i. To get.

  As shown in FIG. 8, in the function total value acquisition process, the control unit 12 first has a user ID “user number i” in a large number of progress related information (FIG. 4) stored in the progress information database 14. Search for the first record from all the comparison records that has the same song ID as the practice song to be processed and whose progress is the closest to the person's progress (but greater than the person's progress) (step) S211).

  Here, when the first record exists (step S212: YES), the control unit 12 further determines the practice song and the song ID to be processed from all the comparison partner records whose user ID is the user number i. A search is made for records that are the same and the progress is equal to or higher than the target (step S213). The target progress value is equal to the number of notes that is 90% of the total number of notes in the practice song as described above.

  Then, when there is one or more records whose progress level is equal to or higher than the target (step S214: YES), the control unit 12 records the record with the lowest progress level (the corresponding record is In the case of one, that record) is set as the second record (step S215).

  Thereafter, the control unit 12 targets all the records from the first record to the second record described above, that is, a plurality of records whose date and time is from the date and time of the first record to the date and time of the second record. Total values F1 to F4 of the respective functions are calculated (step S216).

  On the other hand, when the first record does not exist in the progress information database 14 during the above-described processing (step S212: NO), the control unit 12 includes a record whose progress is equal to or higher than the target. If not (step S214: NO), the function total values F1 to F4 of the comparison partner whose user ID is the user number i are set to 0 (step S217).

  Then, the control unit 12 sets the function total values F1 to F4 calculated in step S216 or the function total values F1 to F4 determined in step S217 as return values (step S218), and ends the function total value acquisition process. Returning to the process of FIG.

  Thereafter, the control unit 12 uses the function total values F1 to F4 acquired in the function total value acquisition process as a list of function total values for each user (Z11 to Zn1, Z12 to Zn2, Z13 to Zn3, Z14 to Zn4). Save (step S207). The control unit 12 increments the user number i to change the comparison partner (step S208), returns to the process of step S202, and repeats the process described above.

  Then, when the user number i exceeds the maximum value n (step S205: YES), the control unit 12 sets the total value Zi1, Zi2, Zi3, Zi4 of each function for all users as a return value (step S209). ), The function total list acquisition process ends, and the process returns to the process of FIG.

  Subsequently, the control unit 12 uses the similarity W1 to Wn of the plurality of users acquired in the similarity list acquisition process (FIG. 6) in step S2, and the plurality of functions acquired in the function total list acquisition process (FIG. 7) in step S3. Scores (A1 to A4) are calculated from the following equation (2) using the total values Z11 to Zn1, Z12 to Zn2, Z13 to Zn3, and Z14 to Zn4 according to user functions as parameters (step S4).

Ｘ： 本人の最新レコードにおける機能１〜機能４の各値
Ｙ： 比較相手の第１のレコードにおける機能１〜機能４の各値
Ｎ： サポート機能の種類の数（＝４）
ｉ： ユーザー番号
ｎ： ユーザー番号の最大値
ｊ： サポート機能の番号

X: Each value of function 1 to function 4 in the person's latest record Y: Each value of function 1 to function 4 in the first record of the comparison partner N: Number of types of support function (= 4)
i: User number n: Maximum user number j: Support function number

  That is, in the process of step S4, the control unit 12 calculates the weighted average of the total value for each function, using the similarity W1 to Wn of each user as a weight, and the result indicates a score indicating the degree of effectiveness for each function. Get as.

  And the control part 12 provides the recommendation order | rank according to the acquired score to each function. That is, a higher recommendation rank is given by a function having a higher score (step S5).

  Subsequently, the control unit 12 executes the progress ability list acquisition process shown in FIG. 9 (step S6). The progress ability list acquisition process is performed by the comparison target user who has the highest similarity in the practice method among the users who should recommend the support function and the many users who can play the practice songs. A list (SPa1 to SPa4, SPb1 to SPb4) of improvement skills for the performance technique for the practice song indicated by the song ID confirmed in step S1, and for each type of support function (function 1 to function 4). It is a process to acquire.

  As shown in FIG. 9, in the progress ability list acquisition process, the control unit 12 first searches the record immediately before the latest record from all the records of the person (step S <b> 301).

  Here, when the immediately preceding record exists (step S302: YES), the control unit 12 determines the value v1 to v4 of each function of the latest record, the progress s1 of the latest record, and the record of the immediately preceding record. The progress degree s2 is confirmed (step S303).

  After that, the control unit 12 calculates the difference between the improvement degree s1 of the latest record of the person and the improvement degree s2 of the record immediately before the latest record by dividing the value of each function in the latest record. Acquisition capabilities SPa1 to SPa4 are acquired for each type of support function (function 1 to function 4) (step S304).

  If there is no immediately preceding record (step S302: NO), the control unit 12 sets all of the improvement abilities SPa1 to SPa4 for each type of support function (function 1 to function 4) of the person in question to 0. (Step S305).

  Subsequently, the control unit 12 specifies a comparison partner having the maximum similarity based on the similarity list (W1 to Wn) acquired by the similarity list acquisition process in step S2 (FIG. 5) (step S306), and compares the comparison partners. The third record immediately before the first record described above is searched from all the records of the other party (step S307).

  Here, when the third record exists (step S308: YES), the control unit 12 determines the values v1 to v4 of the respective functions of the first record of the comparison partner corresponding to the latest record of the person who is the processing target. The progress s1 of the first record and the progress s2 of the third record that is the record immediately before the first record are confirmed (step S309).

  Thereafter, the control unit 12 calculates the difference between the progress s1 of the first record of the comparison partner and the progress s2 of the third record by the values v1 to v4 of each function of the first record. In other words, the acquisition capabilities SPb1 to SPb4 for each type of support function (function 1 to function 4) in the comparison partner are acquired (step S310). Thereby, the improvement ability list acquisition process is terminated, and the process returns to the process of FIG.

  When the third record does not exist (step S308: NO), the control unit 12 sets all of the improvement abilities SPb1 to SPb4 to 0 for each type of support function (function 1 to function 4) in the comparison partner. (Step S311). Thereby, the improvement ability list acquisition process is terminated, and the process returns to the process of FIG.

  Returning to the process of FIG. 5, the control unit 12 continues to execute the predicted practice time list acquisition process shown in FIG. 10 (step S <b> 7). The predicted practice time list acquisition process is a process of acquiring a list of expected practice times (TF1 to TF4), which is a practice time required to acquire a performance technique expected when each of a plurality of support functions is used.

  As shown in FIG. 10, in the predicted practice time list acquisition process, the control unit 12 first acquires the function total value list (Z11 to Zn1, Z12 to Zn2) acquired by the function total value list acquisition process in step S3 (FIG. 5). , Z13 to Zn3, Z14 to Zn4), the function total value (Zb1 to Zb4) of each function of the comparison partner having the maximum similarity in the practice method, that is, the total use time for each function is acquired (step S401).

Next, the control unit 12 sets 1 to the function number j indicating the function to be processed (step S402). Then, the control unit 12 has both the value of the improvement capability SPaj of the function (support function) of the function number j in the person to be processed and the improvement capability SPbj of the function (support function) of the function number j in the comparison partner are 0. If not (step S403: NO, step S404: NO), the relative function total value RFj is obtained by calculating with the following equation (step S405).
RFj = Zbj × SPbj / SPaj

  That is, the relative function total value RFj is obtained by multiplying the function total value Zbj of the function of the function number j in the comparison partner by the relative ratio between the improvement ability SPbj of the comparison partner related to the function of the function number j and the person's improvement ability SPaj. This is a relative function total value obtained by correcting the function total value Zbj in accordance with the person's ability to improve.

  As described above, the relationship between the function total value Zbj and the relative function total value RFj is Zbj> RFj if the relationship between the person's improvement ability SPaj and the improvement ability SPbj of the comparison partner is SPaj> SPbj. Conversely, if SPaj <SPbj, then Zbj <RFj.

  In addition, when the value of the person's improvement ability SPaj that is the processing target is 0 (step S403: YES), or when the value of the comparison partner's improvement ability SPbj is 0 (step S404: YES), the relative function total value RFj is set as the function total value Zbj of the function with the function number j in the comparison partner (step S406).

  Then, the control unit 12 obtains the expected practice time TFj for the function of the function number j by subtracting the function value vj of the function number j in the person from the relative function total value RFj (step S407).

  Thereafter, after incrementing the function number j (step S408), the control unit 12 performs the above-described processing after step S403, and repeats this until the function number j becomes 4 (step S409: YES). As a result, the expected practice time TFj is acquired for all other functions.

  Thereafter, when the function number j exceeds 4 (step S409: NO), the control unit 12 ends the predicted practice time list acquisition process with the predicted practice time (TF1 to TF4) acquired so far as a return value. Then, the process returns to the process of FIG.

  Then, when returning to the process of FIG. 5, the control unit 12 improves the function recommendation information indicating the recommendation order for each function acquired in the process of step S <b> 5 and the estimated practice time for each function acquired in the process of step S <b> 7. The degree-related information is transmitted to the electronic musical instrument 2 that has transmitted it (step S8). Accordingly, in the electronic musical instrument 2, the recommendation order and the expected practice time are displayed on the LCD of the display unit 26 for each type of support function based on the function recommendation information.

  Therefore, by confirming the expected practice time for each type, the user of the electronic musical instrument 2 can perform the practice music currently practiced by using which function of multiple support functions in the future. You can know if you can learn the technology.

  At the same time, the user of the electronic musical instrument 2 confirms the recommendation order for each type of support function displayed on the LCD of the display unit 26, so which support function is used for the practice song currently being practiced. You can know whether you can learn performance techniques reliably and efficiently.

  As described above, according to this embodiment, when practicing a practice song prepared in advance using the support function, the practice amount required to acquire the performance technique expected at an arbitrary time, that is, the expected practice You can inform the time. In other words, it is possible to inform the user of the practice amount until the performance technique is acquired in a countdown manner. As a result, the user of the electronic musical instrument 2 can be kept motivated to learn the performance technique.

  Moreover, in the present embodiment, the expected practice time for each type of support function is multiplied by the function total value (Zbj) of the comparison partner most similar to the practice method and the relative ratio of the person's improvement ability to the improvement ability of the comparison partner. It was obtained by subtracting the function value vj of the user from the corrected relative function total value (RFj). Therefore, it is possible to inform the user of a more accurate predicted practice time (TFj).

  Although the accuracy of the predicted practice time is reduced, in implementing the present invention, the expected practice time (TFj) for each type of support function is subtracted from the function total value (Zbj) by the person's function value vj. You may make it acquire.

  Further, in the present embodiment, in the configuration in which the user of the electronic musical instrument 2 is notified of the recommended order according to the degree of effectiveness expected in learning the performance technique for each type of support function, any time point The expected practice time required for mastering the performance technique at the time was announced for each type of support function. In this case, by telling the user of the electronic musical instrument 2 the expected practice time required to acquire the performance technique for each type of support function, which support function should be used when practicing the practice song It can be made to judge accurately.

  Further, in the present embodiment, the electronic musical instrument 2 is provided with a plurality of support functions, and a description has been given of informing the estimated practice time required to acquire a performance technique at an arbitrary time for each type of support function. However, the present invention is effective even when the electronic musical instrument 2 has only a single support function.

  In the present embodiment, the user of the electronic musical instrument 2 is informed of the practice time as a practice amount such as how much of a plurality of support functions can be used in the future to practice the performance technique. As explained, the amount of practice to inform the user is not limited to the practice time, but may be the number of practice.

  Further, in the above description, the case where the electronic musical instrument 2 described above is an electronic piano or an electronic keyboard has been described. However, in the present invention, as long as a plurality of support functions for assisting the acquisition of performance techniques are provided. The present invention can also be applied to electronic musical instruments other than keyboard instruments such as electronic pianos and electronic keyboards.

As mentioned above, although several embodiment of this invention and its modification were demonstrated, if these are in the range in which the effect of this invention is acquired, it can change suitably, and embodiment after change is also a claim. It is included in the scope of the invention described in the scope of the invention and the invention equivalent to the invention. The invention described in the claims of the present application will be added below.
[Claim 1]
Stores information related to progress based on the amount of each support function used from the previous practice to the current practice and the progress of performance techniques related to the practice music. Storage means for
Multiple improvements related to a certain condition, including the latest information related to a specific user and information related to the improvement of other users as the practice target of the specific user. Based on the information, an expected practice amount acquisition means for acquiring an expected practice amount that is predicted to be necessary for learning the performance technique when the specific user practiced using the respective support functions;
An expected practice amount providing device comprising: an expected practice amount providing means for providing the expected practice amount acquired by the expected practice amount acquisition means to the electronic musical instrument used by the specific user.
[Claim 2]
The predicted practice amount acquisition means includes:
The improvement level related information having the first improvement level of the other user corresponding to the latest improvement level of the specific user as an element, and the other user's first level of improvement corresponding to the improvement level as the practice target of the specific user. Progress level acquisition means for acquiring progress level related information having the progress level of 2 as an element from the storage means;
Acquire for each user the degree of similarity focusing on the usage amount of each support function between the latest improvement level related information on a specific user and the improvement related information acquired by each of the other users. A similarity acquisition means,
With respect to a series of progress-related information each of which is an improvement level from the first progress level to the second progress level of the user having the maximum similarity level acquired by the similarity level acquisition unit, A total usage amount obtaining means for obtaining a total usage amount obtained by totaling the usage amounts of the respective support functions in the progress-related information.
The difference between the total usage amount acquired by the total usage amount acquisition means and the usage amount of each support function in the latest improvement level related information of the specific user is expected when each support function is used. The predicted practice amount providing apparatus according to claim 1, wherein the predicted practice amount is acquired as the predicted practice amount that is a practice amount required to acquire a performance technique.
[Claim 3]
The performance improvement capability of the specific user is acquired based on the latest progress level related information related to the specific user and the progress level of each of the progress level related information acquired prior to the latest progress level related information. 1 skill acquisition means,
The specific other user based on the first improvement level related to the other user and one or more predetermined improvement levels acquired prior to the improvement level related information having the first improvement level as an element A second skill acquisition means for acquiring performance skills in
Relative performance skill of the specific user acquired by the first improvement ability acquisition means relative to improvement skill of the performance technique of the specific other user acquired by the second improvement ability acquisition means Correction means for correcting the total use amount acquired by the total use amount acquisition means based on the ratio, and
The predicted practice amount acquisition unit uses a difference between the total usage amount after correction by the correction unit and the usage amount of the support function in the latest improvement level related information of the specific user when each support function is used. The predicted practice amount providing apparatus according to claim 2, further comprising: acquiring as the predicted practice amount that is an amount of practice required to acquire the performance technique expected in the step.
[Claim 4]
The electronic musical instrument has a plurality of the support functions,
The storage means stores, as the progress level related information, usage amount for each type of support function acquired by the electronic musical instrument, progress level related information whose element is a progress level of performance techniques related to practice music,
The predicted practice amount acquisition means acquires the predicted practice amount that is a practice amount required to acquire a performance technique expected when using each of a plurality of support functions,
The prediction according to claim 1, wherein the predicted practice amount providing means provides the predicted practice amount for each type of support function acquired by the predicted practice amount acquisition means to the electronic musical instrument used by the specific user. Practice amount providing device.
[Claim 5]
From the first progress level corresponding to the progress level in the latest progress level related information of the specific user to the second level of progress level corresponding to the progress level as the practice target, from the storage means Search means for searching for one or a plurality of sets of progress related information relating to the same user, each of which is an improvement level of
Determination means for determining effectiveness for each type of support function based on one or more sets of progress related information searched by the search means;
The predicted practice amount providing means includes the predicted practice amount for each type of support function acquired by the predicted practice amount acquisition means together with a recommendation order for each type of support function according to the effectiveness determined by the determination means. The expected practice amount providing device according to claim 4, which is provided to an electronic musical instrument used by the specific user.
[Claim 6]
Stores information related to progress based on the amount of each support function used from the previous practice to the current practice and the progress of performance techniques related to the practice music. Storing in the means;
Multiple improvements related to a certain condition, including the latest information related to a specific user and information related to the improvement of other users as the practice target of the specific user. Based on the information, an expected practice amount acquisition step of acquiring an expected practice amount that is predicted to be necessary for mastering performance techniques when the specific user practiced using the respective support functions;
Providing a predicted practice amount to the electronic musical instrument used by the specific user.
[Claim 7]
Computer
Stores information related to progress based on the amount of each support function used from the previous practice to the current practice and the progress of performance techniques related to the practice music. Storage means for
Multiple improvements related to a certain condition, including the latest information related to a specific user and information related to the improvement of other users as the practice target of the specific user. Based on the information, an expected practice amount acquisition means for acquiring an expected practice amount that is predicted to be necessary for learning the performance technique when the specific user practiced using the respective support functions;
A program for causing an expected practice amount provided by the expected practice amount acquisition means to function as an expected practice amount providing means for providing an electronic musical instrument used by the specific user.
[Claim 8]
The support function recommendation device according to claim 1, and a plurality of electronic musical instruments having a support function that assists acquisition of performance techniques,
The plurality of electronic musical instruments are:
Information related to the user when practicing the practice song by the user, including progress related information that includes the amount of support functions used from the previous practice to the current practice and the progress of the performance technique related to the practice song. Information acquisition means to acquire individually;
A support function recommendation system comprising: supply means for supplying progress related information acquired by the information acquisition means to the support function recommendation device.

DESCRIPTION OF SYMBOLS 1 Function recommendation server 2 Electronic musical instrument 11 Communication control part 12 Control part 13 Program data memory | storage part 14 Progress information database 21 CPU
22 ROM
23 RAM
24 sound system 25 keyboard 26 display unit 27 switch unit 28 performance history memory 29 communication control unit 100 internet 201 music related information 202 sequence information 203 performance information 204 function use information 301 progress related information

Claims (8)

A large number of users who perform performance practice As a history of performance practice for each user, a specific user is selected from a storage means for storing the usage amount of each support function that helps to acquire the performance technique used for each performance practice and the progress of the performance technique. An improvement degree acquisition means for acquiring a first improvement degree of another user corresponding to the latest improvement degree of the second user and a second improvement degree of the other user corresponding to a target improvement degree of the specific user; ,
A total usage amount obtaining means for obtaining a total usage amount obtained by totaling the usage amounts of the respective support functions in the progress levels from the first progress level of the other user to the second progress level;
First improvement ability acquisition means for acquiring performance improvement ability of the specific user based on a difference between the latest improvement degree regarding the specific user and the improvement degree acquired prior to the latest improvement degree; ,
A second improvement that acquires performance skills of the other user based on a difference between the first improvement degree related to the other user and an improvement degree acquired prior to the first improvement degree. Ability acquisition means;
Correction means for correcting the total use amount acquired by the total use amount acquisition means based on a ratio of the improvement ability of the specific user to the improvement ability of the other user;
Expected practice amount acquisition means for acquiring a difference between the total use amount after correction and the use amount of each support function with respect to the latest improvement of the specific user as an expected practice amount;
An expected practice amount providing means for providing the expected practice amount acquired by the predicted practice amount acquisition means to the electronic musical instrument used by the specific user ;
A device for providing the expected amount of exercise. The total usage amount obtaining means includes:
Similar focusing on the amount of the respective support function between the latest proficiency and the number of users each of proficiency except the specific user that has been acquired by the proficiency acquisition means relating to the specific user It further has a similarity acquisition means for acquiring the degree for each user ,
Targeting the proficiency from the first proficiency user degree of similarity acquired by the similarity degree acquiring section is up to the second proficiency, the amount of the respective support function in each of proficiency The apparatus for providing an expected practice amount according to claim 1, wherein a total usage amount obtained by summing up the two is acquired. The electronic musical instrument has a plurality of the support functions,
Said storage means, prior SL amount for each type of has been support functions acquired by the electronic musical instrument stores proficiency related information to the proficiency of the performance art relating Etudes element,
The predicted practice amount acquisition means acquires the predicted practice amount that is a practice amount required to acquire a performance technique expected when using each of a plurality of support functions,
3. The predicted practice amount providing unit according to claim 1 or 2, wherein the predicted practice amount providing unit provides the predicted practice amount for each type of support function acquired by the predicted practice amount acquisition unit to an electronic musical instrument used by the specific user. Providing device. From the storage means, with respect to the other users, improvement degrees from a first improvement degree corresponding to the latest improvement degree of the specific user to a second improvement degree corresponding to the improvement degree as a practice target, respectively. A search means for searching for one or a plurality of sets of progress related to the same user as an element;
Determination means for determining the effectiveness of each type of support function based on a series of progress of one or a plurality of sets searched by the search means;
The predicted practice amount providing means includes the predicted practice amount for each type of support function acquired by the predicted practice amount acquisition means together with a recommendation order for each type of support function according to the effectiveness determined by the determination means. The expected practice amount providing device according to claim 3, which is provided to an electronic musical instrument used by the specific user. Expected practice amount providing device
A large number of users who perform performance practice As a history of performance practice for each user, a specific user is selected from a storage means for storing the usage amount of each support function that helps to acquire the performance technique used for each performance practice and the progress of the performance technique. Obtaining a first improvement level of the other user corresponding to the latest improvement degree of, and a second improvement degree of the other user corresponding to the target improvement degree of the specific user ,
Obtaining a total usage amount obtained by totaling the usage amounts of the respective support functions in the improvement levels from the first improvement level of the other user to the second improvement level,
Obtaining a performance skill improvement capability of the specific user based on a difference between the latest improvement degree regarding the specific user and the improvement degree acquired prior to the latest improvement degree;
Based on the difference between the first improvement level related to the other user and the improvement level acquired prior to the first improvement level, acquiring the performance skill improvement capability of the other user;
Correcting the total usage based on the ratio of the specific user's improvement ability to the other user's improvement ability;
The difference between the corrected total usage amount and the usage amount of each support function with respect to the latest progress of the specific user is obtained as an expected practice amount ,
An expected practice amount providing method of providing the acquired expected practice amount to an electronic musical instrument used by the specific user . As the performance practice history of each of a large number of users who perform performance practice , the amount of each support function used to assist in the acquisition of the performance technique used for each performance practice and the expected practice quantity having storage means for storing the progress of the performance technique In a computer used as a providing device ,
The first improvement level of the other user corresponding to the latest improvement level of the specific user and the second improvement level of the other user corresponding to the target improvement level of the specific user are stored in the storage means. A step to obtain ,
Obtaining a total usage amount obtained by totaling the usage amounts of the respective support functions in the improvement levels from the first improvement level to the second improvement level of the other user;
Obtaining a performance skill improvement capability for the specific user based on a difference between the latest improvement level for the specific user and the improvement level acquired prior to the latest improvement level;
Acquiring a performance skill improvement capability of the other user based on a difference between the first improvement level related to the other user and an improvement level acquired prior to the first improvement level;
Correcting the total usage based on a ratio of the specific user's improvement ability to the other user's improvement ability;
Obtaining a difference between the total usage amount after correction and the usage amount of each support function with respect to the latest progress of the specific user as an expected practice amount ;
Providing the obtained predicted practice amount to an electronic musical instrument used by the specific user;
A program that executes The predicted practice amount providing device according to claim 1, and a plurality of electronic musical instruments having a support function for helping acquisition of performance techniques,
The plurality of electronic musical instruments are:
Information related to the user when practicing the practice song by the user, including progress related information that includes the amount of support functions used from the previous practice to the current practice and the progress of the performance technique related to the practice song. Information acquisition means to acquire individually;
An expected practice amount providing system comprising: supply means for supplying the progress related information acquired by the information acquisition means to the predicted practice amount providing device. An electronic musical instrument having a support function for helping to acquire performance techniques, and obtaining an expected practice amount from the expected practice amount providing device according to any one of claims 1 to 4 ,
Information related to the user when practicing the practice song by the user, including progress related information that includes the amount of support functions used from the previous practice to the current practice and the progress of the performance technique related to the practice song. Information acquisition means to acquire individually;
Supply means for supplying progress related information acquired by the information acquisition means to the predicted practice amount providing device;
An electronic musical instrument characterized by comprising:

Images