JP2007333836A - Performance exercise device and performance exercise processing program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make possible for a player to grasp music property of the whole music while evaluating performance data inputted for music data of exercise music every musical sound, in a performance exercise. <P>SOLUTION: A CPU 1 reads music data transferred from an auxiliary storage device 9 to a RAM 4 at each prescribed section of paused exercise in order and evaluates whether the performance data inputted for the read music data in the prescribed section reaches to a prescribed level or not. When it is evaluated that the prescribed section of the performance data does not reach to the prescribed level, the music data in the prescribed section is read again, and when it is evaluated the prescribed section of the performance data reaches to the level, the music data in next prescribed section is read again. And when it is evaluated that the last prescribed section of performance data reaches to the level, the music data is continuously read form the first prescribed section to the last prescribed section. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a performance practice device and a performance practice processing program, and more particularly to a performance practice device and a performance practice processing program for evaluating performance for music data read from storage means for each predetermined section.

  A widely used electronic keyboard instrument has a memory that stores song data for practice and a display unit that displays the score of song data read from the memory. You can practice performance based on the song data. Many proposals have been made for such performance practice devices and performance practice methods. A representative one of these many proposals will be described below.

  In a keyboard musical instrument automatic training apparatus according to a proposal, musical score information including note length information expressed on a musical score is sequentially stored and set, and a memory serving as a model performance information source in which phrase information is inserted for each of a plurality of musical score information. Phrase information in comparison with the musical score information read out from the storage device, the address generating device that sequentially sets the information reading address from the storage device, the keyboard for practice operation, and the performance information corresponding to the key pressing operation of this keyboard A means for scoring in units of reading and a means for presetting the head address of the phrase scored in the scoring result in the address generator are configured so that it can be repeatedly practiced according to the scoring content. In addition, a display for displaying the repetition corresponding to the scoring result in units of phrases is provided, and the scoring result is displayed numerically. The scoring means counts the number of errors in the score information read from the storage device. (See Patent Document 1)

  Further, in an electronic musical instrument according to a proposal, a storage unit that can store a predetermined music in advance, a key input unit that can selectively specify a musical tone of each pitch, and each specified for each key operation of the key input unit The comparison means for comparing and detecting each tone included in each predetermined unit constituting the musical piece and the music stored in the storage means, and when a match is detected by the comparison operation of the comparison means, each tone in the next predetermined unit Is read from the storage means, and when a mismatch is detected, a read control means for reading again each musical tone in a predetermined unit from which the mismatch has been detected from the storage means is provided. (See Patent Document 2)

  In addition, in a practice instrument according to a proposal, an operation position indicated through the display means in an instrument for practicing music by pointing the operation position of the instrument through the display means based on the musical sound information stored in advance. A match determination means for determining whether or not the operation position actually operated matches, and when it is determined by the match determination means that there is no match, first, an automatic performance is performed in the vicinity of the musical sound that does not match. And an instruction resuming means for resuming the process of indicating the operation position of the musical instrument before the musical sound that does not match after the automatic performance of the automatic performance means is completed. (See Patent Document 3)

  Further, in a performance practice device according to a proposal, storage means for storing song data constituting a song, reading means for dividing the song data stored by the storage means into a plurality of sections, and reading the song data for each section; Comparison between performance data input means for inputting performance data corresponding to a performance operation, comparison means for comparing performance data input from the performance data input means and song data for each section read by the reading means, and comparison means According to the result, when both data match, the reading data of the next section is read, while when they do not match, the reading control means for controlling the reading means to read the music data of the same section again, It has a configuration with. (See Patent Document 4)

  Further, in a performance practice device according to a proposal, storage means for storing song data composed of note data indicating the pitch and length of each note constituting the song, reading means for reading the note data from the storage means, and performance operation The performance data input means for inputting the performance data corresponding to the performance data, the performance data input from the performance data input means and the note data read by the reading means are compared, and the incompatibility of the performance operation is detected by the mismatch between the two data. Detecting means for determining, the determining means for determining the type of inappropriate performance operation based on the note data when the detecting means detects the inappropriateness, and the detecting means for detecting each type determined by the determining means. Counting means for counting the number of performance operations, and evaluation of performance operations according to the number of inappropriate performance operations for each type counted by the counting means. It has a configuration which includes a Shimesuru display means. In this case, the storage means stores a plurality of song data, and further includes a determination means for determining song data to be read from the reading means afterwards in accordance with the number of inappropriate performance operations for each type. ing. That is, depending on the number of inappropriate performance operations, it is determined whether to proceed to the next song with a higher level or to return to the previous song with a lower level. (See Patent Document 5)

Further, in an automatic performance device according to a proposal, song data storage means for storing song data including a bar number corresponding to a measure of the song, as well as representing the pitch and pronunciation timing of each sound forming the song, Automatic performance means for sequentially reading out the music data stored in the music data storage means and performing automatically, and when this automatic performance means is instructed to perform repeat playback while the automatic performance is in progress, Repeat reproduction instruction means for instructing the automatic performance means to repeatedly reproduce the music data between the start end that is a predetermined measure backward from the bar number in the song data and the end that is advanced by a certain bar line from the start end; It has composition which comprises. In this case, the apparatus further includes execution instruction means for instructing repeat reproduction execution in response to the pressing operation of the operation element and designating a reproduction range corresponding to the time during which the operation element is continuously pressed, and the automatic performance means performs automatic performance. When the repeat playback execution is instructed by the execution playback instructing means while the playback is in progress, the repeat playback instructing means reads the start end and the start end back by a predetermined bar from the bar number in the song data at the specified time. The automatic performance means is instructed to repeatedly reproduce the music data between the end of the reproduction range designated by the execution reproduction instruction means. Alternatively, it further comprises a discriminating means for discriminating whether or not there is a key operation mistake by comparing a key event generated in response to a key operation and an event in the song data read by the automatic performance means, and the automatic performance means advances the automatic performance. When the discriminating means detects a key operation mistake during the process, the repeat playback instruction means, in the music data, starts and ends the start line that goes back a predetermined bar from the bar line number that includes the event of the key operation error. The automatic performance means is instructed to repeatedly reproduce the music data between and the end of the line advanced by a certain bar line. (See Patent Document 6)
JP 56-92563 A JP 58-35583 A JP-A-62-170995 Japanese Patent Laid-Open No. 5-297795 Japanese Patent No. 3266934 (JP-A-5-303326) JP 2002-251185 A

Conventional performance practice devices and performance practice methods, including the above-mentioned patent documents, compare the model performance and the actual performance for a certain musical piece for each musical tone, and each section for each measure or phrase unit. The musical performance matches or does not match, and when the score result is bad, the section is repeatedly practiced, and when the score result is good, it proceeds to the next section. That is, when the scoring result of the last section is good, it is evaluated that the subject music has been acquired, and the process proceeds to the next subject music.
For this reason, the emphasis is placed on detailed evaluation of the performance of each musical tone, and it tends to fall into the scoring system for each musical tone, like a bark without looking at the forest by looking at the trees. In many cases, the practice of the song ended without knowing the correct musicality.
The present invention is for solving such a conventional problem, and it is possible to grasp the musicality of the entire song while evaluating the performance data input to the song data of the practice song for each musical tone. The purpose is to enable proper performance practice.

  The performance practice device according to claim 1 is configured to store music data stored in storage means (corresponding to the RAM 4 in FIG. 1 in the embodiment) in a predetermined section (in the embodiment, two delimiters in FIG. 2). Data reading means (corresponding to the CPU 1 in FIG. 1 in the embodiment) read in order for each section) and music data in a predetermined section read by the data reading means. Performance evaluation means for evaluating whether or not the performance data has reached a predetermined level (corresponding to the pass range of step SE2 in FIG. 7 in the embodiment) (corresponding to CPU 1 in FIG. 1 in the embodiment). If the performance evaluation means evaluates that the performance data of the predetermined section has not reached the level, the data reading is performed so that the music data of the predetermined section is read again. When the performance evaluation means evaluates that the performance data of a predetermined section has reached the standard, the data reading means is instructed to read the music data of the next predetermined section, and the performance evaluation means Read instruction means for instructing the data reading means to continuously read from the first predetermined section to the last predetermined section of the music data when it is evaluated that the performance data of the last predetermined section has reached the level (Corresponding to the CPU 1 of FIG. 1 in the embodiment).

  In the performance practice apparatus according to claim 1, as described in claim 2, prior to input of performance data for music data of a predetermined section read by the data reading means, an exemplary performance of the predetermined section (in the embodiment) May be configured to further include automatic performance means (corresponding to the CPU 1 of FIG. 1 in the embodiment) for performing the sample data performance processing of FIG.

  The performance practice processing program according to claim 3 is a program for storing music data stored in a storage means (corresponding to the RAM 4 in FIG. 1 in the embodiment) in a predetermined section (in the embodiment, two in FIG. 2). Step A, which is read in sequence for each section (corresponding to a section delimited by a delimiter mark), and performance data input to the music data of the predetermined section read out in step A are at a predetermined level (in the embodiment, FIG. 7 is equivalent to the pass range of step SE2), and if step B evaluates that the performance data of the predetermined section has not reached the level, If step A is instructed to read the song data again, and step B evaluates that the performance data of the predetermined section has reached the standard, When step A is instructed to read the song data of the section and it is evaluated by step B that the performance data of the last predetermined section has reached the level, the first predetermined section to the last predetermined section of the song data Step C instructing Step A to read the above continuously is executed by a computer (corresponding to CPU 1 in FIG. 1 in the embodiment).

  In the performance practice processing program according to claim 3, as described in claim 4, prior to the input of performance data for the music data of the predetermined section read out in step A, the exemplary performance of the predetermined section (the embodiment) 5 may be configured to further include a step D for performing (corresponding to the model data performance processing of FIG. 5).

  According to the apparatus of the present invention, it is possible to perform performance practice so that the musicality of the entire song can be grasped while performance data input to the song data of the practice song is evaluated for each musical tone. It is done.

Hereinafter, an embodiment of the performance practice apparatus of the present invention will be described in detail by taking an electronic keyboard instrument as an example.
FIG. 1 is a block diagram illustrating a configuration of an electronic keyboard instrument in the embodiment. In FIG. 1, a CPU 1 is connected to a ROM 3, a RAM 4, a switch 5, a display unit 6, a keyboard 7, a sound source 8, and an auxiliary storage device 9 via a system bus 2, and data and commands between these units. This electronic keyboard instrument is controlled while giving and receiving. The ROM 3 stores in advance a performance practice processing program executed by the CPU 1, other control programs, and initial data. The RAM 4 is a work area of the CPU 1 and includes variable areas such as registers, counters, flags, and pointers for temporarily storing data processed by the CPU 1. The switch 5 includes a plurality of switches such as a music selection switch, a practice start switch, a tone color setting switch, and a sound effect addition switch. The display unit 6 displays information related to the performance practice song and other information. The keyboard 7 inputs performance data corresponding to key pressing and key release operations to the CPU 1. The sound source 8 includes a waveform ROM (not shown), generates a musical tone signal based on waveform data read from the waveform ROM in accordance with a sound generation instruction from the CPU 1, and supplies it to the sound generation circuit 10. The sound generation circuit 10 includes a D / A converter circuit, a filter circuit, an amplifier circuit, a speaker, and the like (not shown), and generates sound according to a musical sound signal supplied from the sound source 8. The auxiliary storage device 9 is a detachable memory card configured by a flash ROM, an external MIDI device connected by a dedicated cable, or a music database of an external server connected via a network such as the Internet. A plurality of pieces of music data that are composed and are subject to performance practice are ranked according to the degree of difficulty and stored. The song data that is the subject is transferred from the auxiliary storage device 9 to the RAM 4 by the data communication processing of the CPU 1 in accordance with the operation of the song selection switch of the switch 5.

  FIG. 2 is a diagram showing the format of the task song transferred from the auxiliary storage device 9 to the RAM 4. The task song is composed of song data and a header portion. The song data is model performance data composed of note-on or note-off event data pitch, volume, etc., and is read out for each predetermined section of one measure or a plurality of measures. The song data has a delimiter mark “0”, a delimiter mark “1”,... Delimiter mark “n” corresponding to each predetermined section, and corresponds to the score of the song data of the predetermined section between the two delimiter marks. The delta time indicating the time interval until the event data of the next note-on event or note-off event and the event data alternately exist. After the delimiter mark [n] is “EOF (End Of File)” indicating the end of the music data.

  The header portion is composed of data used for evaluating whether the performance is acceptable or not by comparing the sample performance data with the actual performance data input by operating the keyboard 7, and the evaluation target is the key depression. And key release timing and key press volume (velocity). The timing allowable range T is a pass range of key pressing and key release timing, and the volume allowable range V is a pass range of the key pressing volume. The maximum number of iterations H indicates the maximum number of iterations allowed for a failed performance. The previous task address M is an address of a task song that is one level lower in difficulty than the currently selected task song, and the subsequent task address A has a difficulty rank higher than that of the currently selected task song. This is the address of the next higher subject song.

  Next, the operation of the performance practice process executed by the CPU 1 of the electronic keyboard instrument of FIG. 1 will be described in detail based on the flowcharts of FIGS. In the following performance practice processing, the data after the subject music data to be practiced is read from the auxiliary storage device 9 by the music selection switch of the switch 5 and stored in the RAM 4 as shown in FIG. It is.

  FIG. 3 is a flowchart of the main routine. First, the CPU 1 performs an initialization process (step SA1). In this initialization process, the “phase”, “range”, “t”, “f”, and “v” areas of the RAM 4 are cleared to “0”. The phase is a flag that takes values of “0 (example data performance mode)”, “1 (performance recording mode)”, and “2 (performance evaluation mode)”. The range is a flag for identifying whether the practice mode is the separation practice mode (0) or the whole song practice mode (1). t is a variable for counting the number of performance timing failures. f is a variable that counts the number of rejected musical pitches. v is a variable for counting the number of performance velocities rejected.

  The CPU 1 executes a switch process after the initialization process in step SA1 (step SA2). FIG. 4 is a flowchart of the switch process. The CPU 1 scans the on / off state of each switch (step SB1), determines whether or not the practice start switch has been pressed (step SB2), and when this switch is pressed, the performance data pointer P is set at the head of the data (step SB3), the timer counter C of the delta time is reset to “0”, and the count is started (step SB4). After this, or when the practice start switch is not pressed in step SB2, the CPU 1 performs other switch processing (step SB5) and returns to the main routine of FIG.

  After the switch process of step SA2 in FIG. 3, the CPU 1 determines whether the value of the phase that is the register of the RAM 4 is “0”, “1”, or “2” (step SA3), and the value of the phase When “0” is “0”, the model data performance process is executed (step SA4). When the value of phase is “1”, the performance recording process is executed (step SA5). In the case of “2”, a performance evaluation process is executed (step SA6). After performing processing according to the value of phase, the CPU 1 performs other processing such as data communication processing with the auxiliary storage device 9 (step SA7), and shifts to the switch processing in step SA2.

  FIG. 5 is a flowchart of the example data performance process in step SA4 in FIG. The CPU 1 determines whether or not the address of the pointer P is the head of the data shown in FIG. 2 (step SC1). If it is the head of the data, the timing is stored in the register ti of the RAM 4 as initialization of various parameters. The allowable value T is stored, the volume allowable range V is stored in the register ve, the maximum number of iterations H is stored in the register hk, the previous task address M is stored in the register mk, and the subsequent task address A is stored in the register ak. , K (K = 0) is stored in the register km, “0” is stored in the variable dsum indicating the total time length of the practice section of the model data (step SC2), and the value of the address of P is “6”. Are added (step SC3).

  After the initialization of various parameters in step SC2 and the setting of the pointer P in step SC3, or in step SC1, the pointer P is not the head of the data but after the automatic performance of the sample data is started. The CPU 1 determines whether or not the count value C of the timer counter has reached the delta time dt indicated by the pointer P, that is, whether or not the performance start timing of the next event data has been reached (step SC4). When C does not reach the dt delta time, the process returns to the main routine of FIG. 3. However, when the count value C reaches the dt delta time, the variable dsum indicating the total time length of the practice section of the model data is returned. Delta time of dt is added to (step SC5).

  Next, the CPU 1 determines whether the event at the address indicated by (P + 1) is note-on or note-off (step SC6). If the event is note-on, the sound generation process for the sound source 8 is performed. (Step SC7). If the event is note-off, the sound source 8 is muted (step SC8), the count value C of the timer counter is cleared to "0" (step SC9), and the pointer P is set. “2” is added (step SC10). That is, the address of the next delta time is designated. Next, the CPU 1 determines whether or not the event indicated by the pointer P is a delimiter mark (step SC11). If the event is not a delimiter mark, the CPU 1 returns to the main routine of FIG. When the event indicated by the pointer P is a delimiter mark, the automatic performance of one section has ended, so the range value is “0 (separation practice mode)” or “1 ( It is discriminated whether or not it is the “one song entire practice mode” ”(step SC12).

  When the range value is “0”, the CPU 1 stores the current separator L in the variable km (step SC13), sets the phase to “1 (performance recording mode)”, and performs the performance data of the performer. The variable rsum representing the total time length of the practice section is cleared to “0” (step SC14), and the address (km−1) of the previous break mark L is set in the pointer P, that is, Going back to the section mark of the section where the model performance was performed (step SC15), the process returns to the main routine of FIG.

  FIG. 6 is a flowchart of the performance recording process in which the phase of step SA5 in the main routine of FIG. 3 is “1”. In this performance recording process, the CPU 1 designates the performance data area of the RAM 4 and determines whether or not there is a new key press (step SD1). (Step SD2), if there is no new key press, it is determined whether or not there is a new key release (step SD3). A sound muting start process is performed (step SD4).

  After the sound generation start process in step SD2 or the mute start process in step SD4, the CPU 1 uses the value C of the timer counter, that is, the elapsed time until the current key depression or key release, to the address Q (initial value of the performance data area). The value is stored at the head address) (step SD5), and after adding the value C of the timer counter to the variable rsum (initial value is “0”), the value of C is cleared to “0” (step SD6), Event data is stored at address (Q + 1) (step SD7), address Q is incremented by two, and an address for storing the elapsed time until the next key depression or key release is designated (step SD8).

  After this, or when there is no new key depression and key release, the CPU 1 determines whether or not the value of rsum has reached the value of dsum (step SD9). That is, it is determined whether or not the elapsed time for the practice of the separation has reached the time for the practice of the separation of the model performance data. If the value of rsum does not reach the value of dsum, the process returns to the main routine of FIG. 3 and this performance recording process is executed again. When the value of rsum reaches the value of dsum in step SD9, the CPU 1 clears the value of rsum to “0” (step SD10), sets Q to the top address (step SD11), and sets the phase to “2”. (Performance evaluation mode) "(step SD12), and the process returns to the main routine of FIG.

  FIG. 7 is a flowchart of the performance evaluation process in which the phase of step SA6 in the main routine of FIG. 3 is “2”. In this performance evaluation process, the CPU 1 first executes a performance data evaluation process (step SE1). FIG. 8 is a flowchart of the performance data evaluation process. The CPU 1 first determines whether the value of the variable range is “0 (separation practice mode)” or “1 (one-song practice mode)” (step SF1), and the value of the range is “0”. The pointer P currently set at the first delimiter mark of the practice section is incremented by one and set to the first delta time of the practice section (step SF2).

  Next, the CPU 1 sets the pointer Q of the performance data area of the RAM 4 to the head address (step SF4), and the delta time of the performance stored in the pointer Q is the model delta stored in the pointer P. It is determined whether or not it is within the range of ± ti from the time (step SF5), and if not within this range, an indication that the timing of the event of (Q + 1) is bad is displayed (step SF6). The variable t for counting the impossibility is incremented by 1 (step SF7), and the performance delta time stored in the pointer Q is added to the total performance length rsum of the performance recording up to the present (step SF8).

  Next, the CPU 1 determines whether or not the event (P + 1) is note-on (step SF9). If the event is note-on, the event (Q + 1) has the same pitch as the event (P + 1). It is determined whether or not there is a pitch (step SF10). If the pitches are not the same, the display indicates that the pitch of the event (Q + 1) is different (step SF11), and the variable f for counting the pitch impossible is set to 1. (Step SF12).

  Next, the CPU 1 determines whether or not the volume of the event (Q + 1) is within a range of ± ve from the volume of the event (P + 1) (step SF13). A display indicating that the volume of the event (Q + 1) is bad is displayed (step SF14), and the variable v for counting the volume impossibility is incremented by 1 (step SF15).

  Next, the CPU 1 determines whether or not the total time length rsum of the performance recording up to the present has reached the total time length dsum of the section of the practice for separation practice (step SF16), and rsum has reached dsum. If not, the pointer Q and the pointer P are incremented by 2 respectively, the address of the next delta time is designated (step SF17), the loop processing from step SF5 to step SF16 is repeated, and in step SF16, rsum When dsum reaches dsum, the process returns to the flowchart of the performance evaluation process of FIG.

  In FIG. 7, the CPU 1 determines whether or not the values of the variables t, f, and v that count the timing, pitch, and volume impossibility obtained by the performance data evaluation process of FIG. SE2) If it is within the acceptable range, it is determined whether the flag range is “0” or “1” (step SE3). Sets phase to “0 (example data performance mode)”, clears dsum to “0”, stores the maximum number of iterations H in variable hk (step SE4), and determines whether the current separation practice is the last separation (Step SE5), if it is not the last break, the pointer P is set to the first break mark km of the next practice section (step SF6), and the process returns to the main routine of FIG. .

  Thereafter, the CPU 1 executes a model data performance process (FIG. 5) for the next practice section, performs a performance recording process (FIG. 6) for the practice section performed by the performer, and In the performance evaluation process (FIG. 7), after the performance data evaluation process of FIG. 8 is executed, the values of the variables t, f, v for counting the timing, pitch and volume impossibility obtained by the performance data evaluation process are respectively determined. If it is within the acceptable range, the model data performance process, the performance recording process, and the performance evaluation process are repeated until the last practice section ends.

  On the other hand, when the CPU 1 executes the performance data evaluation process of FIG. 8, the values of the variables t, f, and v that count the timing, pitch, and volume impossibility obtained by the performance data evaluation process are unacceptable. Displays the reason for determining failure (step SE7), and whether or not the value of the variable hk for counting the number of repetitions is greater than “0”, that is, it is possible to repeat the practice section where it is desired to determine failure. (Step SE8), if the value of hk is greater than “0”, the pointer P is set to the delimiter mark mk at the beginning of the current practice section, and the value of hk is decremented by one. Then, the pointer Q is set to the head address (step SE9), the phase is set to "0 (example data performance process)" (step SE10), and the process returns to the main routine of FIG.

  Thereafter, the CPU 1 executes a sample data performance process (FIG. 5) in the same practice section, performs a performance recording process (FIG. 6) performed in the practice section performed by the performer, and performs the performance in the practice section. In the evaluation process (FIG. 7), after the performance data evaluation process of FIG. 8 is executed, the values of the variables t, f and v for counting the timing, pitch and volume impossibility obtained by the performance data evaluation process are not valid. If it is acceptable, in step SE8 in FIG. 7, if hk is greater than “0”, the sample data performance process, performance recording process, and performance evaluation process in the same practice section are repeated.

  On the other hand, in the case where t, f, v are unsuccessful in an arbitrary practice section and the number of iterations hk is “0” in step SE8, the CPU 1 sets the pointer P to the address of the previous task mk. (Step SE15), various parameters of “phase”, “range”, “t”, “f”, “v” in the RAM 4 are initialized to “0” (step SE16). That is, a task song having a lower difficulty rank is designated as the next practice song.

  In the break practice mode where the range is “0”, the CPU 1 determines that the values of the variables t, f, and v are within the acceptable range in step SE2 of FIG. 7, and then passes through step SE3 and step SE4, and finally in step SE5. At the end of the practice section, the pointer P is set to the address obtained by adding “6” to the head address of the model, that is, the address of the first delta time of the song data, and the range is set to “1 (one song) Overall practice mode) ”(step SE11), the process returns to the main routine of FIG.

  Thereafter, the CPU 1 executes a model data performance process throughout the music. That is, after performing the processing from step SC1 to step SC11 in FIG. 5 for each practice section, the range is determined to be “1” in step SC12, so the pointer P is incremented by 1 (step SC16). It is determined whether or not the pointer P points to “EOF” at the end of the song (step SC17). If it is not “EOF”, the sample data performance process is continued.

  When the pointer P points to “EOF” in step SC17 during execution of the sample data performance process throughout the entire song, the CPU 1 sets the phase to “1 (performance recording mode)” and sets rsum to “0”. (Step SC18), the pointer P is set to the address obtained by adding "6" to the head address of the model, that is, the address of the first delta time of the song data (step SC19), and the main routine of FIG. Return to. At this time, the accumulated value of the delta time of the entire song is stored in the variable dsum of the total time length of the practice section of the model data.

  Next, the CPU 1 executes the performance recording process of FIG. 6, and in step SD9, the total duration of the performance data accumulated in the variable rsum is stored in the variable dsum. It is determined whether or not the time length has been reached, and if the total time length of the variable rsum has not reached the total time length of the variable dsum, the performance recording process is continued according to the performance of the performer, but the variable rsum When the total time length of the variable dsum reaches the total time length of the variable dsum, rsum is cleared to “0” (step SD10), the pointer Q is set to the start address of the performance data area (step SD11), and the phase is set to “ 2 (performance evaluation mode) "(step SD12), the process returns to the main routine of FIG.

  In the performance evaluation process for the practice of the entire song, the CPU 1 shifts to the performance data evaluation process in FIG. 8 in step SE1 in FIG. 7, and first determines the range “1” in step SF1, and then moves the pointer P to the hand. Set to the address obtained by adding “6” to the head address of the book, that is, the address of the first delta time of the song data (step SF3), and after setting the pointer Q to the head address in step SF4, the above-described delimiter practice In the same manner as in the above, the process from step SF5 to step SF16 is repeated, and in step SF16, the total time length of the performance recording accumulated in the variable rsum is the practice section of the model data stored in the variable dsum. The total time length, that is, whether or not the accumulated value of the delta time of the entire song has been reached, If the total time length of sum does not reach the total time length of the variable dsum, the pointer P and the pointer Q are respectively incremented by 2 (step SF17), and the process proceeds to step SF5, according to the performance of the performer. Repeat the performance data evaluation process.

  When the total time length of the variable rsum reaches the total time length of the variable dsum in step SF16, the CPU 1 checks in step SE2 in FIG. 7 whether t, f, and v of the entire song are within the acceptable range. If it is within the acceptable range, the range is determined to be “1” in step SE3, the lesson end is displayed (step SE12), and “phase”, “range”, “t”, “f” in the RAM 4 is displayed. ”And“ v ”are initialized to“ 0 ”(step SE13), and the pointer P is set to the address ak of the music data of the subsequent task (step SE14). That is, a task song having a higher difficulty rank is designated as the next practice song.

As described above, according to this embodiment, the CPU 1 sequentially reads the song data transferred from the auxiliary storage device 9 to the RAM 4 for each predetermined interval of the delimiter practice, and reads the song data in the read predetermined interval. Evaluate whether or not the input performance data has reached the pass range, and if it is determined that the performance data of the predetermined section has not reached the pass range, the music data of the predetermined section is read again, When it is evaluated that the performance data of the section has reached the acceptable range, the music data of the next predetermined section is read again, and it is evaluated that the performance data of the last predetermined section has reached the acceptable range Reads continuously from the first predetermined section to the last predetermined section of the music data.
Therefore, it is possible to perform the performance practice so that the musicality of the entire music can be grasped while the performance data input to the music data of the practice music is evaluated for each musical tone.

  In the above embodiment, the invention of the apparatus in which the CPU 1 executes the performance practice processing program stored in advance in the ROM 3 has been described. However, it is recorded on an external storage medium such as a flexible disk (FD), CD, or memory card. The performance practice processing program that is currently installed is installed in a writable nonvolatile memory such as a hard disk or flash ROM, or the performance practice processing program downloaded from a network such as the Internet is installed in the nonvolatile memory, and the program Can also be executed by the CPU 1. In this case, the invention of the program and the invention of the recording medium on which the program is recorded can be realized.

That is, the performance practice processing program according to the present invention is:
Step A in which the song data stored in the storage means is read in order for each predetermined section, and whether or not the performance data input for the song data in the predetermined section read in step A has reached a predetermined level. If the step B evaluates that the performance data of the predetermined section does not reach the level, the step A is instructed to read the music data of the predetermined section again. If it is determined in step B that the performance data of the predetermined section has reached the level, the step A is instructed to read the music data of the next predetermined section, and the last predetermined section is read by the step B. If the performance data is evaluated as having reached the above level, the first predetermined section to the last predetermined section of the song data are read continuously. To execute the steps C to instruct urchin step A, to the computer.
Prior to inputting the performance data for the music data of the predetermined section read out in the step A, the method further includes a step D of performing an exemplary performance of the predetermined section.

  The above embodiments and the accompanying drawings are merely for illustrating the principle of the present invention, and are based on these embodiments and the drawings unless departing from the scope of the claims which are the technical idea of the present invention. Various other embodiments and modifications that can be easily conceived by those skilled in the art also belong to the principle of the present invention.

The block diagram which shows the structure of the electronic keyboard musical instrument in embodiment of this invention. The figure which shows the format of the music data memorize | stored in the auxiliary storage device of FIG. The flowchart of the main routine of the performance practice process performed by CPU of FIG. The flowchart of the switch process in FIG. The flowchart of the example data performance process in FIG. The flowchart of the performance recording process in FIG. The flowchart of the performance evaluation process in FIG. The flowchart of the performance data evaluation process in FIG.

Explanation of symbols

1 CPU
3 ROM
4 RAM
5 Switch 6 Display 7 Keyboard 8 Sound Source 9 Auxiliary Storage 10 Sound Generation Circuit

Claims (4)

Data reading means for sequentially reading the song data stored in the storage means for each predetermined section;
Performance evaluation means for evaluating whether or not the performance data input for the song data of the predetermined section read by the data reading means has reached a predetermined level;
When the performance evaluation means evaluates that the performance data of a predetermined section does not reach the level, the data reading means is instructed to read the music data of the predetermined section again, and the performance evaluation means When it is evaluated that the performance data of the section has reached the level, the data reading means is instructed to read the music data of the next predetermined section, and the performance data of the last predetermined section is read by the performance evaluation means. Is instructed to reach the level, read instruction means for instructing the data reading means to continuously read from the first predetermined section to the last predetermined section of the song data,
A performance practice device characterized by comprising:   2. The performance according to claim 1, further comprising automatic performance means for performing an exemplary performance of the predetermined section prior to input of performance data for the music data of the predetermined section read by the data reading means. Practice equipment. Step A for reading out the song data stored in the storage means in order for each predetermined section;
A step B for evaluating whether or not the performance data inputted for the song data of the predetermined section read out in the step A has reached a predetermined level;
If the step B evaluates that the performance data of the predetermined section has not reached the level, the step A is instructed to read the music data of the predetermined section again, and the performance of the predetermined section is performed by the step B. When it is evaluated that the data has reached the level, the step A is instructed to read the music data of the next predetermined section, and the performance data of the last predetermined section reaches the level by the step B. Step C instructing the step A to continuously read from the first predetermined section to the last predetermined section of the song data,
A program of performance practice processing, characterized by causing a computer to execute.   4. The performance practice process according to claim 3, further comprising a step D of performing an exemplary performance of the predetermined section prior to inputting performance data for the music data of the predetermined section read out in the step A. program.

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