JP4678365B2 - Music score display apparatus and music score display processing program - Google Patents

Description

  The present invention relates to a score display apparatus and a score display processing program that display easy-to-read score corresponding to the structure of music.

  2. Description of the Related Art Music score display apparatuses that display music data representing each sound constituting a music in a musical score are known. For example, in Patent Document 1, if the difference between the note head display positions of sounds at both ends of sounds connected by a beam (beam) is detected and the detected difference between the note head display positions (pitch difference) is smaller than a predetermined value. If the difference of pitch head display position (pitch difference) is larger than a predetermined value, set the slope of the beam to horizontal, and set the beam slope to the predetermined slope. There is disclosed a technique for displaying a string of digits so that a performer can easily see even when the pitch of the sound is small or the pitch is extremely large.

Japanese Patent Laid-Open No. 10-74082

  By the way, in the method disclosed in the above-mentioned Patent Document 1, the score is simply displayed so that the consecutive notes are easy to see. For example, in the score of a format in which a plurality of bars are displayed per page, the structure of the song There is a problem that it is not possible to display an easy-to-read score that conforms to the structure of the music, such as stepping through the breaks.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a score display device and a score display processing program capable of displaying a score that is easy to see according to the structure of music.

In order to achieve the above object, according to the first aspect of the present invention, storage means for storing music data representing each sound constituting the music, and a music structure obtained by analyzing the music data stored in the storage means According to the music dividing means for dividing the music into a plurality of sections, and when the music data stored in the storage means is displayed as a score formed from a plurality of stages, each section divided by the music dividing means In a score display apparatus comprising: display setting means for displaying and setting the end to be at the end of each stage of the score; and output means for displaying and outputting the score set by the display setting means on the display means. The music dividing means assigns a comparison source measure to one measure of music data stored in the storage means and assigns a comparison destination measure to the remaining other measures, and each comparison destination measure for the comparison source measure The operation of determining the degree of coincidence is repeated until a comparison source measure is assigned to all the measures included in the music data, and the comparison destination measures determined by the determination unit for each comparison source measure And a dividing unit that divides a range of a comparison target bar having a degree of coincidence equal to or higher than a threshold value as one section in the music .

In the invention of claim 2 that is dependent on the claim 1, wherein the determining means, each to be incremented by a predetermined time width from the beginning of the measure to the rear end, the comparison source during the incremented time width A perfect match is determined when the pitch of the comparison source sound that is pronounced in the measure is the same as that of the comparison destination sound that is pronounced in the comparison measure, and when both the comparison source sound and the comparison destination sound do not exist A coincidence determining unit; and a complete coincidence calculating unit for calculating a complete coincidence by dividing a complete coincidence period obtained by accumulating a time width determined to be complete coincidence by the complete coincidence determining unit by a time corresponding to a bar length; And the dividing means divides a range of comparison destination bars in which complete matching degrees equal to or greater than a threshold value from among the complete matching degrees calculated by the perfect matching degree calculation means as complete matching sections. Having a perfect match section dividing means And butterflies.

In the invention described in claim 3 when dependent on said claim 1, wherein the determining means, each to be incremented by a predetermined time width from the beginning of the measure to the rear end, the comparison source during the incremented time width Relative match determination that determines relative match when there is a comparison source sound that is pronounced in a measure and a comparison destination sound that is pronounced in a comparison measure, and the comparison source sound and the comparison destination sound are in a transposition relationship And a relative coincidence calculating unit that calculates a relative coincidence by dividing a relative coincidence period obtained by accumulating the time width determined to be a relative coincidence by the relative coincidence determination unit by a time corresponding to a bar length. The dividing means divides a range of comparison destination bars in which relative matching degrees equal to or greater than a threshold value are consecutively divided as relative matching sections from the relative matching degrees of the respective comparison destination bars calculated by the relative matching degree calculation means. It has a matching section dividing means

In the invention described in claim 4 when dependent on said claim 1, wherein the determining means, each to be incremented by a predetermined time width from the beginning of the measure to the rear end, the comparison source during the incremented time width There is a comparison source sound that is pronounced in the measure and a comparison destination sound that is pronounced in the comparison measure, and the direction of the pitch difference between the first note and the comparison source sound in the comparison measure is compared. Relative direction coincidence determining means for determining relative direction coincidence when the direction of the pitch difference between the first note of the first measure and the comparison destination sound coincides, and the relative direction coincidence determining means determines that the relative direction coincides. A relative direction coincidence calculating unit that calculates a relative direction coincidence by dividing a relative direction coincidence period obtained by accumulating the time width by a time corresponding to a bar length, and the dividing unit includes the relative direction coincidence More than the threshold value among the relative direction coincidence of each comparison measure calculated by the calculation means The range of the comparison target measure the relative direction matching degree is continuous, characterized in that it comprises a relative direction matching section dividing means for dividing a relative direction matching intervals.

In the invention described in claim 5 when dependent on said claim 1, wherein the determining means, each to be incremented by a predetermined time width from the beginning of the measure to the rear end, the comparison source during the incremented time width There is a comparison source sound that is pronounced in the measure and a comparison destination sound that is pronounced in the comparison measure, and the difference between the sound generation start time and the mute time between the comparison source sound and the comparison destination sound is within the allowable range. The comparison original sound and the comparison target sound that are generated in the case and the stepped time width do not exist, and the mute time of the previous sound and the next sound of each of the comparison original sound and the comparison target sound that are currently judged are Rhythm match determination means for determining rhythm match when the pronunciation start time is within an allowable range, and the rhythm match period obtained by accumulating the time width determined as rhythm match by the rhythm match determination means is equivalent to the measure length Divide by time to calculate rhythm match Rhythm matching degree calculating means, and the dividing means calculates a range of comparison destination bars in which the rhythm matching degree equal to or greater than a threshold value is continuous among the rhythm matching degrees of the respective comparison destination bars calculated by the rhythm matching degree calculation means. Rhythm matching section dividing means for dividing as a rhythm matching section is provided.

According to the sixth aspect of the present invention, the comparison source measure is assigned to one measure of the song data stored in the storage means and representing each sound constituting the song, and the comparison destination measure is assigned to the remaining other measures. The operation of determining the degree of coincidence of each comparison target measure with respect to the comparison source measure is repeated until the comparison source measure is assigned to all the measures included in the music data, and this comparison processing is performed for each comparison source measure. A division process for dividing a range of comparison destination bars in which the degree of coincidence equal to or higher than a threshold value from among the degree of coincidence of each determined comparison destination bar is divided into one section in the music, and music data is formed from a plurality of stages. that if it is displayed as a score, the end of each section divided by the music division processing, and a display setting process for displaying set so that each stage trailing score at the display setting process Characterized in that to execute the output process of displaying and outputting the shown set score to the display unit by a computer.

  In the present invention, the music is divided into a plurality of sections according to the music structure obtained by analyzing the music data representing each sound constituting the music, and the music data is displayed as a score formed from a plurality of stages. In addition, since the end of each divided section is set to be the end of each stage of the score, it is possible to display a score that is easy to see according to the structure of the music.

Embodiments of the present invention will be described below with reference to the drawings.
[First Embodiment]
A. Constitution
(1) Overall configuration
FIG. 1 is a block diagram showing the overall configuration of the score display apparatus according to the first embodiment of the present invention. The score display device includes a CPU 1, a ROM 2, a RAM 3, an input unit 4, a display unit 5, and a MIDI interface 6. In accordance with an instruction from the input unit 4 to be described later, the CPU 1 derives the measure data “Measure” representing each measure of the song from the SMF format song data MidiEvent taken from the external electronic musical instrument 7 via the MIDI interface 6, for example, and the song data The music structure is analyzed with reference to MidiEvent and measure data Measurement, and a score corresponding to the structure of the music is displayed on the display 5 based on the analysis result. The processing operation of the CPU 1 related to the gist of the present invention will be described in detail later.

  The ROM 2 stores various programs and tables that are loaded into the CPU 1. The various control programs mentioned here include a main routine, a structure analysis process performance, a performance difficulty calculation process, and a display condition setting process which will be described later.

  The RAM 3 has a work area for temporarily storing various register / flag data used for the calculation of the CPU 1, a music data area for storing SMF format music data MidiEvent taken in from an external electronic musical instrument 7 via the MIDI interface 6, and A measure data area for storing measure data Measure derived from the song data MidiEvent stored in the song data area. Each composition of music data MidiEvent and measure data Measurement will be described later. The input unit 4 generates an operation event corresponding to the user operation and supplies it to the CPU 1. Under the control of the CPU 1, the display unit 5 refers to the music data MidiEvent and the bar data Measurement, and displays a score corresponding to the music structure on the screen.

(2) Data structure
Next, each structure of the music data MidiEvent and the bar data Measurement stored in the RAM 3 will be described with reference to FIGS. FIG. 2 is a diagram showing the configuration of the song data MidiEvent stored in the song data area of the RAM 3. The song data MidiEvent [0] to [N] represents each sound (melody) constituting the song, and END data representing the end of the song is provided at the end thereof.

  The song data MidiEvent representing one melody sound designates the sound generation start time ITime expressed by the elapsed time from the start of the song, the sound length lGate indicating the sound generation period, the pitch Pitch, the volume Vel, and the finger for pressing the real sound Fingering information cfig, fingering cost iCost indicating difficulty of playing the real intention (degree of difficulty), pointer prev, and pointer next.

  The fingering information cfig specifies the thumb when “0”, the index finger when “1”, the middle finger when “2”, the ring finger when “3”, and the little finger when “4”. The fingering cost iCost represents a difficulty level from “0” to “16”, and “0 to 2: very easy”, “3 to 5: easy”, “6 to 8: standard”, and “9 to 11: difficult”. ”,“ 12-14: very difficult ”and“ 15-: impossible ”. The pointer prev designates the address of the previous performance data MidiEvent. The pointer next designates the address of the next performance data MidiEvent.

  FIG. 3 is a diagram showing the configuration of the measure data Measurement stored in the measure data area of the RAM 3. The measure data Measurement [0] to [N] represent attributes for each measure. One measure data “Measure” includes a start time lTime, a measure length lGate, a label number iLevel given to the measure, a label option iLvOption, an in-label state iLvStatus, a column number iRow, and a page number. It consists of iPage, advance flag iRPass, page feed flag iPPpass, performance cost iCost, pointer prev, and pointer next.

  The label number iLevel, the label option iLvOption, and the in-label state iLvStatus are data given by a structural analysis process described later, and the contents intended by these will be described later. The pointer prev designates the address of the previous measure data Measurement. The performance cost iCost represents the performance difficulty level. The pointer next designates the address of the next measure data Measurement.

  The column number iRow, the page number iPage, the column advance flag iRPass, and the page advance flag iPPpass are data provided in the display condition setting process described later. Here, the relationship among these data (stage number iRow, page number iPage, advance flag iRPass, and page advance flag iPPpass) will be described with reference to FIG. FIG. 4A is an example of the column number iRow, the page number iPage, the column advance flag iRPass, and the page feed flag iPPpass assigned to the measure specified by the label number iLevel. The column number iRow represents the number of the musical score column displayed in one page.

  The step-up flag iRPass indicates that there is no step-feed when it is “0”, and indicates that there is step-up when it is “1”. The page number iPage represents a musical score display page. The page feed flag iPPpass represents “no page feed” when “0”, and “page feed present” when “1”. Therefore, according to the example of the column number iRow, the page number iPage, the page advance flag iRPass, and the page feed flag iPPpass shown in FIG. 4A, the score is displayed in the format shown in FIG. 4B.

  That is, as shown in FIG. 4B, in the stage of the stage number iRow “0”, the bar M [0] specified by the label number iLevel “0” and the bar specified by the label number iLevel “1” are displayed. M [1] is displayed. Then, in the stage of the stage number iRow “1” after being advanced by the bar M [1], the bar is designated by the bar M [2] specified by the label number iLevel “2” and the label number iLevel “3”. Bar M [3] is displayed. Thereafter, the measures M [4] to M [7] respectively designated by the label numbers iLevel “4” to “7” are displayed on the page with the page number iPage “0”. Then, page feed is performed after the bar M [7], and bar M [8] designated by the label number iLevel “8” is displayed at the head of the page number iPage “1”.

B. Action
Next, the operation of the first embodiment will be described with reference to FIGS. Hereinafter, operations of the main routine, the structure analysis process, the performance difficulty calculation process, and the display condition setting process executed by the CPU 1 will be described. The structural analysis process includes a matrix process and a group labeling process. The group labeling process includes a labeling process, a similar partial labeling correction 1 process, a similar partial labeling correction 2 process, a similar partial labeling correction 3 process, and a labeling verification process. The display condition setting process includes a step determination process.

(1) Main routine operation
When an event for instructing the CPU 1 to execute the main routine is supplied from the input unit 4, the CPU 1 executes the main routine shown in FIG. 4, proceeds to step SA 1, and reads music data. That is, the music data MidiEvent [0] to [N] in the SMF format is taken from the external electronic musical instrument 7 via the MIDI interface 6 and stored in the music data area of the RAM 3. In step SA1, based on the music data MidiEvent [0] to [N] stored in the music data area of the RAM 3, the bar data Measurement [0] to [N] are derived and stored in the bar data area of the RAM 3.

  The bar data Measurement [0] to [N] derived here does not include the label option iLvOption and the label state iLvStatus. The label option iLvOption and the label state iLvStatus are generated by a group labeling process (see FIG. 9) described later.

  In the present embodiment, the measure data Measurement [0] to [N] are derived from the song data MidiEvent [0] to [N] stored in the song data area of the RAM 3. However, the present invention is not limited to this. The measure data [0] to [N] generated on the electronic musical instrument 7 side may be taken in via the MIDI interface 6.

  Next, in step SA2, a structure analysis process for analyzing the music structure is performed with reference to the music data MidiEvent and the bar information Measurement. In step SA3, a performance difficulty level is calculated for each section of the music obtained by analyzing the music structure, and given as the performance cost iCost of measure data corresponding to the section. . Subsequently, in step SA4, a display condition setting process is performed for setting to perform step feed at the end of each section of the music obtained by analyzing the music structure. Thereafter, the process proceeds to step SA5, and a score corresponding to the structure of the music is displayed and output on the display unit 5 in accordance with the display conditions set in step SA4.

(2) Structure analysis processing operations
Next, the operation of the structural analysis process will be described with reference to FIG. When this processing is executed through step SA3 (see FIG. 5) of the main routine described above, the CPU 1 proceeds to step SB1 shown in FIG. 6, performs matrix processing (described later), and then proceeds to step SB2. The group labeling process (described later) is executed.

(3) Matrix processing operation
Next, the operation of matrix processing will be described with reference to FIG. When this process is executed through step SB1 (see FIG. 6) of the structural analysis process described above, the CPU 1 proceeds to step SC1 shown in FIG. 7, and the pointer Re specifying the measure to be compared is set at the beginning of the song. Sets a value that specifies the measure of the. Next, in step SC2, it is determined whether or not the comparison source measure designated by the pointer Re has exceeded the end of the song. If the comparison source measure specified by the pointer Re does not exceed the end of the song, the determination result is “NO”, the process proceeds to step SC3, and the first measure of the song is designated as the pointer Lu for designating the comparison target measure. Set the value to be used.

  Subsequently, in step SC4, it is determined whether or not the comparison destination bar designated by the pointer Lu has exceeded the end of the song. If the song end is not exceeded, the determination result is “NO”, the process proceeds to step SC5, and the in-measure time t is initialized. That is, the start time lTime in the measure data Measurement of the comparison measure specified by the pointer Lu is set to the in-measure time t. Next, in step SC6, it is determined whether or not the intra-measure time t has exceeded the measure, that is, whether or not the measure length lGate in the measure data Measure of the comparison destination measure specified by the pointer Lu has been exceeded. If the in-measure time t does not exceed the measure, the determination result is “NO”, the process proceeds to step SC7, and the coincidence determination process is executed.

  In the coincidence determination process, the pitch of the comparison source sound that is sounded at the in-measure time t in the comparison source measure designated by the pointer Re and the sound at the time t in the measure at the comparison destination measure designated by the pointer Lu. If the comparison source sound and the comparison destination sound having the same pitch are present, or if both the comparison source sound and the comparison destination sound are not present, the flags s1, s2, and s3 are set. Set “1” for each.

  In the coincidence determination process, when the comparison original sound and the comparison target sound are in a relative matching relationship, that is, there is a comparison original sound and a comparison target sound generated at the time t in the bar, and the comparison original sound Flag when the pitch difference between the reference tone (pitch of the first note of the comparison measure) and the reference note (pitch of the first note of the comparison measure) match Set s1 to “0”, flag s2 to “1”, and flag s3 to “1”.

  Further, in the coincidence determination process, when the comparison original sound and the comparison target sound coincide with each other in a relative direction, that is, the direction of the pitch difference between the reference sound (the pitch of the first note of the comparison source measure) and the comparison original sound is determined. , The flag s1 is set to “0”, the flag s2 is set to “0”, and the flag s3 is set to “1” when the reference sound (pitch of the first note of the comparison target measure) and the pitch difference between the comparison target sounds coincide with each other. Set to "".

  In addition, in the coincidence determination process, when the comparison source sound and the comparison destination sound are in rhythm coincidence, that is, there is a comparison source sound and a comparison destination sound that are sounded at the time t in the bar, and the sound generation between the two sounds is started. If the difference between the time and the mute time is within an allowable range, or the comparison original sound and the comparison target sound that are pronounced at the time t in the bar do not exist, the comparison original sound and the comparison that are currently subject to coincidence determination The flag s4 is set to “1” when the mute time of the previous sound and the sounding start time of the next sound are within the allowable range for each of the previous sounds.

  In step SC8, the value of the flag s1 set by the match determination process in step SC7 is registered in the register sum1, the value of the flag s2 is registered in the register sum2, the value of the flag s3 is registered in the register sum3, and the value of the flag s4 is registered. Add each to sum4. Thereafter, the process proceeds to step SC9, and the in-measure time t is incremented, and then the process returns to step SC6.

  Thereafter, the above-described steps SC6 to SC9 are repeated until the time t in which the step is advanced exceeds the comparison destination bar specified by the pointer Lu. Thereby, the accumulated time obtained by accumulating the complete coincidence period in which the flag s1 is “1” is stored in the register sum1, and the accumulated time obtained by accumulating the relative coincidence period in which the flag s2 is “1” is stored in the register sum2. The accumulated time obtained by accumulating the relative direction coincidence period in which the flag s3 is “1” is stored in the register sum3, and the rhythm coincidence period in which the flag s4 is “1” is accumulated in the register sum4. The accumulated time is stored.

  When the time t within the measure to be incremented exceeds the comparison target measure specified by the pointer Lu, the determination result at step SC6 is “YES”, and the process proceeds to step SC10. In step SC10, the coincidence rate (sum1 / t) obtained by dividing the accumulated time stored in the register sum1 by the time t for the comparison measure is stored in the matrix element Mat1 [Re] [Lu]. In step SC10, the coincidence rate (sum2 / t) obtained by dividing the accumulated time stored in the register sum2 by the time t for the comparison measure is stored in the matrix element Mat2 [Re] [Lu].

  Further, in step SC10, the coincidence rate (sum3 / t) obtained by dividing the accumulated time stored in the register sum3 by the time t for the comparison target bar is stored in the matrix element Mat3 [Re] [Lu]. In addition, in step SC10, the coincidence rate (sum4 / t) obtained by dividing the accumulated time stored in the register sum4 by the time t for the comparison measure is stored in the matrix element Mat4 [Re] [Lu]. To finish this process.

  The matrix elements Mat1 [Re] [Lu], Mat2 [Re] [Lu], Mat3 [Re] [Lu], and Mat4 [Re] [Lu] referred to here are arrayed by a pointer Re and a pointer Lu, respectively. It is a two-dimensional register that specifies elements.

  Next, in step SC11, the pointer Lu is incremented, the comparison measure is set to the next measure, and then the process returns to step SC4. Thereafter, the above-described steps SC5 to SC11 are repeatedly executed each time the comparison destination bar designated by the pointer Lu is advanced until the end of the music is exceeded. When the comparison measure specified by the pointer Lu exceeds the end of the song, the determination result in step SC4 is “YES”, the process proceeds to step SC12, the pointer Re is incremented, and the comparison source measure is changed to the next measure. Then, the process returns to step SC2. Thereafter, steps SC2 and after are repeated until the pointer Re exceeds the end of the music piece. When the pointer Re (comparison source measure) exceeds the end of the song, the determination result in step SC2 is “YES”, and this process is finished.

  As described above, in the matrix processing, the music data MidiEvent [0] to [N] stored in the music data area of the RAM 3 is referenced with reference to the bar data Measurement [0] to [N] stored in the bar data area of the RAM 3. ] Is distinguished from the comparison source measure specified by the pointer Re and the comparison source measure specified by the pointer Lu, and the relationship between the comparison source note of the comparison source measure Re and the comparison destination measure of the comparison destination measure Lu is defined as a measure. The determination is made at every internal time t.

  That is, the pitch of the comparison original sound that is pronounced at the in-measure time t in the comparison source measure Re and the pitch of the comparison destination sound that is pronounced at the in-measure time t in the comparison destination measure Lu match. In this case, or when both the comparison original sound and the comparison target sound generated at the time t in the bar do not exist, it is determined as “completely coincident”. In addition, there is a comparison original sound and a comparison destination sound that are generated at the time t in the measure, and a difference in pitch between the comparison original sound and a reference sound (for example, the pitch of the first sound of the measure), a comparison destination sound, When the pitch difference with the reference sound matches, that is, when the comparison original sound and the comparison target sound are in a transposition relationship, it is determined as “relative match”.

  Furthermore, there are a comparison original sound and a comparison destination sound that are pronounced at the time t in the bar, and the direction of the pitch difference between the reference sound (pitch of the first note of the comparison source measure) and the comparison original sound is the reference. When the pitch matches the direction of the pitch difference between the sound (the pitch of the first note of the comparison measure) and the comparison target sound, it is determined as “relative direction match”. In addition, if there is a comparison source sound and a comparison destination sound that are sounded at the measure time t, and the difference between the sound generation start time and the mute time between the two sounds is within the allowable range, or sound at the measure time t There is no comparison source sound and comparison destination sound, and the mute time of the previous sound and the start time of the next sound are acceptable for each of the comparison source sound and comparison target sound that are currently subject to matching If it is within the range, it is determined as “rhythm match”.

  When the match determination is completed in this way, the complete match period between each comparison source sound in the comparison source measure designated by the pointer Re and the comparison destination sound in the comparison destination measure designated by the pointer Lu is obtained by accumulation. The integration time is divided by the time t for the comparison target bar to calculate the coincidence rate (sum1 / t), and the calculated coincidence rate is a matrix element Mat1 [Re] [Lu] specified by the pointer Re and the pointer Lu. To store.

  Also, the accumulated time obtained by accumulating the relative coincidence period of each comparison source sound in the comparison source measure specified by the pointer Re and the comparison destination sound in the comparison destination measure specified by the pointer Lu is compared. The coincidence rate (sum2 / t) is calculated by dividing by the time t of the last measure, and the calculated coincidence rate is stored in the matrix element Mat2 [Re] [Lu] specified by the pointer Re and the pointer Lu.

  Further, the accumulated time obtained by accumulating the relative direction matching periods between the respective comparison original sounds in the comparison source measure designated by the pointer Re and the comparison destination sound in the comparison destination measure designated by the pointer Lu Then, the match rate (sum3 / t) is calculated by dividing by the time t for the comparison measure, and the calculated match rate is stored in the matrix element Mat3 [Re] [Lu] specified by the pointer Re and the pointer Lu. .

  In addition, the accumulated time obtained by accumulating the rhythm coincidence period of each comparison source sound in the comparison source measure designated by the pointer Re and the comparison destination sound in the comparison destination measure designated by the pointer Lu, The coincidence rate (sum4 / t) is calculated by dividing by the time t for the comparison measure, and the calculated coincidence rate is stored in the matrix element Mat4 [Re] [Lu] specified by the pointer Re and the pointer Lu.

(4) Group labeling operation
Next, the operation of the group labeling process will be described with reference to FIG. When this process is executed via step SB2 (see FIG. 6) of the structural analysis process described above, the CPU 1 executes a labeling process via step SD1 shown in FIG. In the labeling process, as will be described later, a range (bar segment) in which a matching rate equal to or higher than a threshold value continues for a specified number or more is searched from matrix elements Mat1 [Re] [Lu] specified by the pointer Re and the pointer Lu. The same number is assigned to the label number iLabel in the measure data Measurement corresponding to the range, and a value “0” representing complete matching is registered as the label option iLvOption.

  Subsequently, in step SD2, a similar partial labeling correction 1 process is executed. In the similar partial labeling correction 1 process, as described later, the same label number iLevel is not assigned to the comparison source measure specified by the pointer Re and the comparison destination measure specified by the pointer Lu, and the matrix element Mat2 [ [Re] [Lu] is searched for a range in which the relative coincidence rate equal to or greater than the threshold value continues, that is, a measure section in which the comparison source measure and the comparison target measure are considered to be in a transposition relationship, and the corresponding measure interval is determined. The label number iLevel and the label option iLvOption of the corresponding measure data Measurement are set so as to represent “similar range”.

  Next, in step SD3, a similar partial labeling correction 2 process is executed. The similar partial labeling correction 2 process is substantially the same as the similar partial labeling correction 1 process in step SD2, and therefore detailed description of the operation flow is omitted. In the similar partial labeling correction 2 process, the same label number iLevel is not assigned to the comparison source measure specified by the pointer Re and the comparison destination measure specified by the pointer Lu, and the matrix element Mat3 [Re] [Lu]. The corresponding measure data is searched for a range (bar segment) in which the relative matching rate equal to or greater than the threshold value continues from a specified number, and the corresponding measure segment is expressed as a “range with similar pitch differences”. Sets the label number iLevel of the Measurement and the label option iLvOption.

  Next, a similar partial labeling correction 3 process is executed via step SD4. The similar partial labeling correction 3 process is substantially the same as the similar partial labeling correction 1 process in step SD2, and therefore detailed description of the operation flow is omitted. In the similar partial labeling correction 3 process, the same label number iLevel is not assigned to the comparison source measure specified by the pointer Re and the comparison destination measure specified by the pointer Lu, and the matrix element Mat4 [Re] [Lu]. A range (bar segment) in which the rhythm matching ratio equal to or greater than the threshold value continues from a predetermined number is searched for, and the corresponding bar segment is expressed as a “rhythm matching range”, with the label number iLevel of the corresponding measure data Measurement. And set the label option iLvOption.

  Then, a labeling verification process is executed via step SD5. In this labeling verification process, as will be described later, when the measure section labeled by the labeling process in step SD1 is too long, that is, a labeling start measure (pointer Re) and a number of consecutive measures (pointer Retmp) from there. If the matching rate of the matrix element Mat1 [Re] [Retmp] specified by the above is greater than or equal to the threshold value, a bar section labeled so as to end the section immediately before the bar specified by the pointer Retmp It comes to divide.

(5) Labeling process operation
Next, the operation of the labeling process will be described with reference to FIG. When this process is executed via step SD1 (see FIG. 8) of the group labeling process described above, the process proceeds to step SE1 shown in FIG. 9, and a value specifying the first measure is set in the pointer Re. Subsequently, in step SE2, it is determined whether or not the comparison source measure designated by the pointer Re has exceeded the end of the song. If it does not exceed the end of the song, the determination result is “NO”, and the flow proceeds to step SE3.

  In step SE3, it is determined whether or not a label is attached to the comparison source measure designated by the pointer Re. Labeling is a group having a high consistency in a range (a bar section) in which matrix elements having a matching rate equal to or higher than a threshold value are continuous among matrix elements Mat1 [Re] [Lu] specified by the pointer Re and the pointer Lu. And a label number (to be described later) is assigned to the group. If the comparison source measure specified by the pointer Re has already been labeled, the determination result in step SE3 is “NO”, the process proceeds to step SE13, the pointer Re is incremented, and then the process proceeds to step SE2. Return processing.

  On the other hand, if the comparison source measure specified by the pointer Re is not labeled, the determination result in step SE3 is “YES”, and the process proceeds to step SE4, in which a value specifying the first measure is set in the pointer Lu. . Next, in step SE5, it is determined whether or not the comparison destination bar specified by the pointer Lu has exceeded the end of the song. If it does not exceed the end of the song, the determination result is “NO”, and the flow proceeds to step SE6.

  In step SE6, it is determined whether or not the matching rate of the matrix elements Mat1 [Re] [Lu] specified by the pointer Re and the pointer Lu is equal to or greater than a threshold value. If the coincidence rate of the matrix element Mat1 [Re] [Lu] is less than the threshold value, the determination result is “NO”, the process proceeds to step SE10, the pointer Lu is incremented, and the comparison target bar is set to the next bar. Then, the process returns to step SE5.

  On the other hand, if the coincidence rate of the matrix elements Mat1 [Re] [Lu] is equal to or greater than the threshold value, the determination result in Step SE6 is “NO”, and the flow proceeds to Step SE7. In step SE7, a range i (the number of measures) of the matrix element Mat1 [Re] [Lu] having a matching rate equal to or higher than the threshold, that is, Mat1 [Re + i] [Lu + i] is detected. Next, in step SE8, the number of bars i having a coincidence rate equal to or higher than the threshold value is stored. In step SE9, the pointer Lu is updated by adding the current pointer Lu with the number of measures i having a matching rate equal to or higher than the threshold value, and then the process returns to step SE5.

  Thereafter, until the updated pointer Lu exceeds the end of the song, the number i of bars whose coincidence rate continuously exceeds the threshold is detected. When the updated pointer Lu exceeds the end of the music piece, the determination result in step SE5 is “YES”, and the flow proceeds to step SE11. In step SE11, it is determined whether or not more than a specified number of measures is greater than or equal to a threshold value. If the detected number of bars i is less than the specified number, the determination result is “NO”, the process proceeds to step SE13, the pointer Re is incremented, and the process returns to step SE2.

  On the other hand, if the detected number of bars i is greater than or equal to the specified number, the determination result in step SE11 is “YES”, and the process proceeds to step SE12 to perform numbering and labeling. That is, in step SE12, among the measure data Measurement [0] to [N] stored in the measure data area of the RAM 3, the same number is assigned to the label number iLevel in the measure data Measurement having a continuous match rate equal to or higher than the threshold value. At the same time, a value “0” representing a complete match is set as the label option iLvOption.

  Thereafter, the process proceeds to step SE13, the pointer Re is incremented, and the process returns to step SE2 described above. Thereafter, the operation from step SE3 onward is repeated until the comparison source measure designated by the stepped pointer Re exceeds the end of the music piece. Then, when the comparison source measure specified by the stepped pointer Re exceeds the end of the music piece, the determination result in step SE2 is “YES”, and this processing is finished.

  As described above, in the labeling process, a range (bar segment) in which the matching rate equal to or higher than the threshold value continues from the matrix element Mat1 [Re] [Lu] specified by the pointer Re and the pointer Lu continues for a specified number or more is searched for. The same number is assigned to the label number iLevel in the measure data Measurement corresponding to, and a value “0” representing complete match is registered as a label option iLvOption.

  In addition, a range (bar segment) in which the matching rate equal to or greater than the threshold value continues in the matrix element Mat1 [Re] [Lu] continues for a specified number or more, and a label number iLevel is assigned to each measure data Measurement in the corresponding segment. The entire processing operation for registering the value “0” representing complete match in the label option iLvOption is referred to as labeling.

(6) Operation of similar partial labeling correction 1 processing
Next, the operation of the similar partial labeling correction 1 process will be described with reference to FIG. When this process is executed through step SD2 (see FIG. 8) of the group labeling process described above, the CPU 1 proceeds to step SF1 shown in FIG. 10, and sets a value for designating the beginning of the measure in the pointer Re. Subsequently, in step SF2, it is determined whether or not the comparison source measure designated by the pointer Re has exceeded the end of the song. If the song end is not exceeded, the determination result is “NO”, and the process proceeds to the next step SF3.

  In step SF3, a value for designating the head of the measure is set in the pointer Lu. Next, in step SF4, it is determined whether or not the comparison destination bar designated by the pointer Lu has exceeded the end of the song. If it does not exceed the end of the song, the determination result is “NO”, and the flow proceeds to step SF5. In step SF5, it is determined whether or not the same label number iLevel is assigned to the comparison source measure designated by the pointer Re and the comparison destination measure designated by the pointer Lu. If the same label number iLevel is assigned, the determination result is “NO”, the process proceeds to step SF12, the pointer Lu is incremented, and the process returns to step SF4 described above.

  On the other hand, if the same label number iLevel is not assigned to the comparison source measure specified by the pointer Re and the comparison destination measure specified by the pointer Lu, the determination result in step SF5 is “YES”. Proceed to SF6. In step SF6, it is determined whether or not the relative coincidence rate of the matrix element Mat2 [Re] [Lu] specified by the pointer Re and the pointer Lu is equal to or greater than a threshold value. If the relative coincidence rate of the matrix element Mat2 [Re] [Lu] is less than the threshold value, the determination result is “NO”, the process proceeds to step SF12, the pointer Lu is incremented, and the process returns to step SF4 described above. .

  On the other hand, if the relative coincidence rate of the matrix element Mat2 [Re] [Lu] is equal to or greater than the threshold value, the determination result in Step SF6 is “YES”, and the process proceeds to Step SF7. In step SF7, a range i (the number of measures) of the matrix element Mat2 [Re] [Lu] having a relative coincidence rate equal to or higher than the threshold, that is, Mat2 [Re + i] [Lu + i] is detected. Next, in step SF8, the number of measures i in which the relative coincidence rate equal to or higher than the threshold is continuous is stored. In step SF9, it is determined whether or not the number of measures i detected in step SF7 is equal to or greater than a specified measure.

  If the detected number of measures i is less than the specified measure, the determination result is “NO”, the process proceeds to step SF12, the pointer Lu is incremented, and the process returns to step SF4 described above. On the other hand, if the detected number of bars i is equal to or greater than the specified number of bars, the determination result in step SF9 is “YES”, and the process proceeds to step SF10 to execute label reassignment processing.

In the relabeling process,
(A) When the label number iLevel is assigned to both the comparison source measure Re and the comparison destination measure Lu, the label number iLabel of the comparison destination measure Lu is rewritten to the label number iLevel of the comparison source measure Re, and the comparison destination measure Re A value “1” representing similarity (relative match) is set in the Lu label option iLvOption.

(B) When the label number iLabel is assigned only to the comparison source measure Re, the label number iLevel is set to the label number iLabel of the comparison target measure Lu, and the value “LvOption” of the comparison target measure Lu is set to “ 1 ”is set.

(C) When the label number iLabel is assigned only to the comparison target measure Lu, the label number iLevel is set to the label number iLabel of the comparison source measure Re, and the value “LvOption” of the comparison source measure Re is set to the value “L”. 1 ”is set.

(D) When the label number iLabel is not given to both the comparison source measure Re and the comparison destination measure Lu, the newly assigned label number is assigned to the label number iLevel of the comparison source measure Re and the comparison destination measure Lu. At the same time, the value “0” is set in the label option iLvOption of the comparison source measure Re, and the value “1” is set in the label option iLvOption of the comparison destination measure Lu.

  When such label reassignment processing is completed, the process proceeds to step SF11, and the pointer Lu is updated by adding the current pointer Lu to the number of measures i having a relative coincidence rate equal to or higher than the threshold value, and then the process proceeds to step SF4 described above. return. Thereafter, until the comparison destination bar specified by the updated pointer Lu exceeds the end of the song, a process is performed in which the number of bars i whose relative coincidence rate exceeds the specified bar and continuously exceeds the threshold is searched, and the corresponding bar section is relabeled. repeat.

  Then, if the comparison measure specified by the updated pointer Lu exceeds the end of the song, the determination result in step SF4 is “YES”, the process proceeds to step SF13, the pointer Re is incremented, and The process returns to step SF2. Thereafter, the above-described processing after step SF3 is repeated until the comparison source measure designated by the stepped pointer Re exceeds the end of the song. Then, when the comparison source measure specified by the stepped pointer Re exceeds the end of the song, the determination result in step SF2 is “YES”, and this processing is finished.

  As described above, in the similar partial labeling correction 1 process, the same label number iLevel is not assigned to the comparison source measure specified by the pointer Re and the comparison destination measure specified by the pointer Lu, and the matrix element Mat2 [ [Re] [Lu] is searched for a range in which the relative coincidence rate equal to or greater than the threshold value continues, that is, a measure section in which the comparison measure and the comparison measure are considered to be in a transposition relationship. The label number iLabel and the label option iLvOption of the corresponding measure data Measurement are set so as to express “similar range”.

(7) Labeling verification processing operation
Next, the operation of the labeling verification process will be described with reference to FIGS. When this processing is executed via the above-described group labeling processing step SD5 (see FIG. 8), the CPU 1 proceeds to step SG1 shown in FIG. 11, and sets a value specifying the first measure in the pointer Re. . Subsequently, in step SG2, it is determined whether or not the measure specified by the pointer Re has exceeded the end of the song. If it does not exceed the end of the song, the determination result is “NO”, and the process proceeds to Step SG3. In step SG3, it is determined whether or not the measure specified by the pointer Re is the first measure of the labeled section (hereinafter referred to as a labeling first measure).

  If it is not the labeling head measure, the determination result is “NO”, the process proceeds to step SG4, the pointer Re is incremented, and the process returns to step SG2. Thereafter, by repeating the above steps SG2 to SG4, the labeling head measure is searched while incrementing the pointer Re until the end of the music is reached. If a labeling head measure is found in the process, the determination result in step SG3 is “YES”, the process proceeds to step SG5, and the current pointer Re is set to a pointer Retmp that designates the labeling head measure.

  Next, in step SG6, it is determined whether or not the pointer Retmp has reached the rear end of the labeled measure (hereinafter referred to as the labeled rear end measure). Subsequently, in step SG7 shown in FIG. 12, the pointer Retmp Determines whether or not specifies the first bar of the labeling. The operation will be described separately for the case where the pointer Retmp designates the labeling head measure and the case where the labeling head rear end is designated.

<When pointer Retmp specifies the first measure of labeling>
In the path that first proceeds to step SG6 via step SG5 (see FIG. 11), the pointer Retmp designates the labeling head measure, so the determination result in step SG6 is “NO”, and the step shown in FIG. Proceed to SG7, and the determination result here is “YES”, and the process proceeds to Step SG8.

  In step SG8, it is determined whether or not the number of bars from the pointer Re to the pointer Retmp is greater than or equal to a specified number. In the path that proceeds to step SG8 for the first time, since the pointer Re and the pointer Retmp are the same, the determination result is “NO”, and the flow proceeds to step SG9. In step SG9, the in-label state iLvStatus included in the measure data Measurement of the labeling head measure specified by the pointer Retmp is set to “0” to cancel the head state.

  The in-label state iLvStatus (see FIG. 3) in the measure data “Measure” is “1” when indicating the beginning of the labeled measure, and “1” when indicating the trailing end of the labeled measure. 2 ”is a flag that becomes“ 0 ”when the state is released.

  When the leading state has been canceled, the process proceeds to step SG10, the pointer Retmp is incremented, and the process is returned to step SG6 shown in FIG. Thereafter, the above steps SG6 to SG10 are repeated until the pointer Retmp designates the labeling head measure and the number of measures from the pointer Re to the pointer Retmp is greater than or equal to the specified number. If the above condition is satisfied in accordance with the progress of the pointer Retmp, the determination result in step SG8 is “YES”, and the flow proceeds to step SG11.

  In step SG11, it is determined whether or not the matching rate of the matrix elements Mat1 [Re] [Lu] specified by the pointer Re and the pointer Retmp is equal to or greater than a threshold value. If it is less than the threshold value, the determination result is “NO”, and the process proceeds to step SG9 described above.

  On the other hand, if the coincidence rate of the matrix elements Mat1 [Re] [Retmp] is equal to or greater than the threshold value, the determination result in Step SG11 is “YES”, and the process proceeds to Step SG12. In step SG12, the in-label state iLvStatus included in the measure data Measurement immediately before the measure specified by the pointer Retmp is set to “2” and set to the labeling rear end measure. As a result, the labeled bar section is cut.

<When the pointer Retmp reaches the end of the labeled bar>
As described above, after the labeled bar section is cut, the pointer Retmp is incremented via step SG10, and then the process returns to step SG6 shown in FIG. When the stepped pointer Retmp reaches the labeling rear end bar, the determination result in step SG6 becomes “YES”, and the process proceeds to step SG13 shown in FIG.

  In step SG13, it is determined whether there is an error state. In the error state, the label number iLabel of the bar specified by the pointer Retmp is the same as the label number iLabel of the next bar, and the in-label state iLvStatus in the bar data Measurement of the next bar of the pointer Retmp is “1 (first ) "Means a state that is not. If it is not in an error state, the determination result is “NO”, the process proceeds to step SG14, the pointer Retmp is set to the pointer Re, and then the process returns to step SG4 (see FIG. 11).

  Thereafter, the above-described process is executed, and if there is a predetermined number or more from the labeling head measure and the matching rate of the matrix elements Mat1 [Re] [Retmp] specified by the pointer Re and the pointer Retmp is equal to or greater than a threshold value, the pointer The labeled section section is cut by setting the in-label state iLvStatus included in the measure data Measurement immediately before the measure specified by Retmp to “2”.

  On the other hand, if an error state is detected in step SG13, the determination result in step SG13 is “YES”, the process proceeds to step SG15, and the pointer Retmp is incremented. Next, in step SG16, it is determined whether or not the matching rate of the matrix elements Mat1 [Re] [Retmp] specified by the pointer Re and the pointer Retmp is equal to or greater than a threshold value.

  If the matching rate of the matrix element Mat1 [Re] [Retmp] is equal to or greater than the threshold value, the determination result is “YES”, the process proceeds to step SG17, and the in-label state iLvStatus included in the measure data Measurement of the measure specified by the pointer Retmp. Is set to “1” and set to the labeling head measure, and then the process returns to step SG10 described above.

  On the other hand, if the matching rate of the matrix elements Mat1 [Re] [Retmp] specified by the pointer Re and the pointer Retmp is less than the threshold value, the determination result in step SG16 is “NO”, and the process proceeds to step SG18. The label number iLevel and the in-label state iLvStatus included in the measure data Measure of the measure specified by the pointer Retmp are initialized and the label is released.

  In step SG19, it is determined whether or not the label number iLevel of the bar specified by the pointer Retmp is the same as the label number iLevel of the next bar, that is, whether or not the error state is continuous. If the error state continues, the determination result is “YES”, the process proceeds to step SG20, the pointer Retmp is incremented, and the process returns to step SG18. Thereafter, if the error state continues, steps SG18 to SG20 are repeated. When the error state disappears, the determination result in step SG19 is “NO”, and the process proceeds to step SG14 described above.

  As described above, in the labeling verification process, when the labeled measure section is too long, that is, when the number of measures equal to or greater than the specified value continues from the labeling start measure, the matrix element specified by the pointer Re and the pointer Retmp If Mat1 [Re] [Retmp] is referenced and the matching rate is equal to or greater than the threshold, the in-label state iLvStatus included in the measure data Measurement immediately before the measure specified by the pointer Retmp is set to “2”. Cut the labeled bar section.

  For example, in the matrix element Mat1 [Re] [Retmp], as shown in FIG. 13A, when the labeled bar section is too long and continues from the labeling head bar by a predetermined number or more, As shown in FIG. 5B, the measure is divided at the measure immediately before the measure specified by the pointer Retmp.

(8) Performance difficulty calculation processing
Next, the operation of the performance difficulty level calculation process will be described with reference to FIG. When this process is executed via step SA3 (see FIG. 5) of the main routine described above, the CPU 1 proceeds to step SH1 shown in FIG. 14 and the song data MidiEvent [0] stored in the song data area of the RAM 3 is displayed. It is determined whether or not fingering information cfig is given to [N]. If the fingering information cfig is not given, the determination result is “NO”, the process proceeds to step SH2, and the fingering information cfig is generated based on the music data MidiEvent [0] to [N] to generate the music data MidiEvent [0]. ] To [N], the fingering information generation process is executed, and the process proceeds to step SH3.

  On the other hand, if the fingering information cfg is already assigned to the song data MidiEvent [0] to [N], the determination result in step SH1 is “YES”, and the process proceeds to step SH3. In step SH3, a value for designating the first measure is set in the pointer Ms. Subsequently, in step SH4, it is determined whether or not the measure specified by the pointer Ms has exceeded the end of the song. If the song end is not exceeded, the determination result is “NO”, and the flow proceeds to the next step SH5.

  In step SH5, it is determined whether or not the label number iLabel is given in the measure data Measurement of the measure specified by the pointer Ms, and the measure specified by the pointer Ms is the labeling first measure. If the label number iLevel is assigned and the label is not the first bar of the labeling, the determination result is “NO”, the process proceeds to step SH12, the pointer Ms is incremented to specify the next bar, and the process proceeds to step SH4 described above. To return.

  On the other hand, if the label data iMeasure is assigned to the measure data Measure of the measure specified by the pointer Ms and the measure specified by the pointer Ms is the labeling start measure, the determination result in step SH5 is “YES”. Proceed to SH6. In step SH6, a pointer designating the next measure after the measure designated by the pointer Ms is stored in the pointer Mst. Next, in steps SH7 to SH8, while the pointer Mst is incremented, a label number iLevel is given and a bar at the end of labeling is searched. When the corresponding bar (label number iLabel and the labeling rear end bar) is found, the determination result in step SH7 is “YES”, and the process proceeds to step SH9.

  In step SH9, a section difficulty level calculation process for calculating a performance difficulty level in a section from the measure specified by the pointer Ms to the measure specified by the pointer Mst is executed. In the section difficulty calculation processing, first, the ease of playing when pressing the next sound (next sound) with reference to the fingering information cfig included in the music data MidiEvent representing each sound in the corresponding section is quantified. The performance cost iCost is generated, and the performance cost iCost of each sound in the generated section is added and averaged to define the performance difficulty level of the section.

  Next, in step SH10, the performance difficulty calculated in step SH9 is stored as the performance cost iCost (Ms.iCost) of the measure data Measurement of the measure specified by the pointer Ms. Subsequently, in step SH11, after the value of the pointer Mst is set to the pointer Ms, the process proceeds to step SH12, the pointer Ms is incremented, and the process returns to the above-described step SH4. Thereafter, steps SH4 to SH12 are repeated until the measure specified by the pointer Ms exceeds the end of the song. If the pointer Ms advanced in step SH12 exceeds the end of the music piece, the determination result in step SH4 is “YES”, and this process ends.

  In this way, in the performance difficulty level calculation process, a section composed of a labeling head measure and a labeling end measure having a label number iLabel is searched, and each time a corresponding section is found, song data MidiEvent representing each sound in that section is found. A performance cost iCost is generated by quantifying the ease of playing when the next sound (next sound) is pressed with reference to the fingering information cfig included in the performance information, and the performance cost iCost of each sound in the generated section is generated. Is added and averaged to calculate the performance difficulty level of the section, and the calculated performance difficulty level is registered as the performance cost iCost (Ms.iCost) of the measure data Measurement of the measure specified by the pointer Ms.

(9) Display condition setting process operation
Next, the operation of the display condition setting process will be described with reference to FIG. When this process is executed via step SA4 (see FIG. 5) of the main routine described above, the CPU 1 proceeds to step SJ1 shown in FIG. In steps SJ1 to SJ2, a register Page that holds the page number iPage, a register Row that holds the stage number iRow, a counter RwCnt that counts the number of stages, and a counter MsCnt that counts the number of bars in one stage are initialized (zero reset). . Subsequently, in step SJ3, a value specifying the first measure is set in the pointer Ms.

  Next, in step SJ4, it is determined whether or not the measure specified by the pointer Ms exceeds the end of the song. If it does not exceed the end of the song, the determination result is “NO”, and a step feed determination process is executed via step SJ5. In the step-by-step determination process, as will be described later, the value stored in the register Row when the next of the measure specified by the pointer Ms becomes the labeling start measure or when the number of standard measures that can be displayed in one step is exceeded. Is registered as the step number iRow (Ms.iRow) of the measure data Measurement of the measure specified by the pointer Ms, and the step flag iRPass (Ms.iRPass) having a value “1” indicating the presence of step feed is set.

  Subsequently, in step SJ6, it is determined whether or not the advance flag iRPass (Ms.iRPass) in the measure data Measurement of the measure specified by the pointer Ms is a value “1” indicating the presence of advance. If the advance flag iRPass (Ms.iRPass) is “0” (no advance), the determination result is “NO”, and the flow proceeds to step SJ7. In step SJ7, the value of the register Page is registered as the page number iPage (Ms.iPage) of the measure data Measure of the measure specified by the pointer Ms, and the page feed flag iPPpass (0) indicating no page feed is set. Ms.iPPpass). Then, the process proceeds to step SJ11, the pointer Ms is incremented to designate the next measure, and then the process returns to step SJ4 described above.

  On the other hand, if the step feed flag iRPass (Ms.iRPass) is “1” (step feed is present), the determination result in Step SK6 is “YES”, and the flow proceeds to Step SJ8. In step SJ8, it is determined whether or not the value of the counter RwCnt that counts the number of stages is equal to or larger than the standard number of stages of one page. If the value of the counter RwCnt is less than the standard stage number, the determination result is “NO”, and the process proceeds to step SJ7 described above.

  On the other hand, when step feed occurs in the step feed determination process (step SJ5) described above, and the value of the counter RwCnt advanced by this exceeds the standard number of pages of one page, the judgment result in step SJ8 is “YES”. The process proceeds to step SJ9. In step SJ9, the value of the register Page is registered as the page number iPage (Ms.iPage) of the measure data Measure of the measure specified by the pointer Ms, and the page feed flag iPPpass (1) indicating the presence of page feed is displayed. Ms.iPPpass).

  Subsequently, in step SJ10, the value of the register Page is incremented according to the page feed setting, and the value of the counter RwCnt is reset to zero. Then, the process proceeds to step SJ11, the pointer Ms is incremented to designate the next measure, and then the process returns to step SJ4 described above. Thereafter, steps SJ4 to SJ11 described above are repeated until the measure specified by the pointer Ms exceeds the end of the music piece. When the measure specified by the pointer Ms exceeds the end of the song, the determination result in step SJ4 is “YES”, and the process is completed.

  As described above, in the display condition setting process, the column number iRow (Ms.iRow) and the page number iPage (Ms.iPage) are assigned by the pointer Ms for each measure data Measurement specified by the pointer Ms. When the next measure after the current measure to be labeled is the first measure of labeling or when the number of standard measures that can be displayed in one step is exceeded, “1” is set in the step flag iRPass (Ms.iRPass) of measure data Measure of the current measure. Is set to set the step feed, and when the number of steps advanced in accordance with the step feed exceeds the standard step number of one page, the page feed flag iPPpass (Ms.iPPpass) of the measure data Measure of the current measure is set to “1”. Set to page feed.

(10) Operation of step feed judgment processing
FIG. 16 is a flowchart showing the operation of the step feed determination process. When this process is executed via step SJ5 (see FIG. 15) of the display condition setting process described above, the CPU 1 proceeds to step SK1 shown in FIG. 16, and increments the counter MsCnt to increase the value. Next, in step SK2, a value that specifies the next bar after the bar specified by the pointer Ms is set in the pointer MsN. In step SK3, it is determined whether or not the measure specified by the pointer MsN is the labeling head measure.

  If it is the labeling head measure, the determination result is “YES”, and the process proceeds to step SK4. In step SK4, the value stored in the register Row is registered as the stage number iRow (Ms.iRow) in the measure data Measurement of the measure specified by the pointer Ms, while the advance flag iRPAss in the measure data Measurement. As (Ms.iRPass), a value “1” representing the presence of step feed is set. Next, in step SK5, the register Row and the counter RwCnt are incremented and incremented, while the counter MsCnt that counts the number of measures included in one stage is reset to zero and the process is terminated.

  As described above, when the next of the measure specified by the pointer Ms is the labeling head measure, the value stored in the register Row is set to the column number iRow (Ms in the measure data Measurement of the measure specified by the pointer Ms. .IRow) and a step-up flag iRPass (Ms.iRPass) having a value “1” indicating the presence of step-feed is set.

  On the other hand, if the next of the measure specified by the pointer Ms is not the first labeling label, the determination result in step SK3 is “NO”, and the flow proceeds to step SK6. In step SK6, it is determined whether or not the value of the counter MsCnt for counting the number of bars included in one stage is equal to or greater than the number of standard bars in one stage. If the value of the counter MsCnt is less than the number of standard measures in one stage, the determination result is “NO”, the process proceeds to step SK12, and the value stored in the register Row is changed to the measure of the current measure specified by the pointer Ms. The step number iRow (Ms.iRow) in the data Measurement is registered, and a step flag iRPass having a value “0” indicating no step feed is set, and this processing is completed.

  On the other hand, if the value of the counter MsCnt is greater than or equal to the standard number of bars in one stage, the determination result in step SK6 is “YES”, the process proceeds to step SK7, and the initial value “1” is set to the pointer iMs. Next, in step SK8, it is determined whether or not the pointer iMs has exceeded a predetermined number of searches, that is, whether or not the number of bars that can be displayed in one stage has been exceeded. If the number of bars that can be displayed in one row is not exceeded, the determination result is “YES”, and the flow proceeds to step SK9.

  In step SK9, the pointer MsN is set to a value that specifies a measure iMs ahead (Ms + iMs) from the measure specified by the pointer Ms. Subsequently, in step SK10, it is determined whether or not the measure designated by the pointer MsN is the labeling head measure. If it is not the labeling head measure, the determination result is “NO”, the process proceeds to step SK11, the pointer iMs is incremented, and the process returns to step SK8 described above.

  Thereafter, the above steps SK8 to SK11 are repeated until the incremented pointer iMs exceeds the predetermined number of searches, that is, until the number of bars that can be displayed in one stage is exceeded. From the next measure until the number of measures that can be displayed in one row is reached, the presence or absence of a labeling head measure is searched.

  When the labeling head measure is not searched and the incremented pointer iMs exceeds the predetermined number of searches and reaches the number of measures that can be displayed in one stage, the determination result in step SK8 is “NO”, and the above-described step SK4 is performed. The value stored in the register Row is registered as the column number iRow (Ms.iRow) in the measure data Measurement of the measure specified by the pointer Ms, while the step advance flag iRPass (in the measure data Measurement) is registered. Ms.iRPass) is set to a value “1” indicating the presence of step feed. Next, in step SK5, the register Row and the counter RwCnt are incremented and incremented, while the counter MsCnt that counts the number of measures included in one stage is reset to zero and the process is terminated.

  On the other hand, if a labeling head measure is found between the measure next to the measure specified by the pointer Ms and the measures several search ahead, the determination result in step SK10 is “YES”, and the process proceeds to step SK12. The value stored in the Row is registered as the column number iRow (Ms.iRow) in the measure data Measurement of the current measure specified by the pointer Ms, and the step flag iRPass having a value “0” indicating no step advance. After setting (Ms.iRPass), this process is terminated.

  As described above, in the step-by-step determination process, the value stored in the register Row is used when the next measure after the measure specified by the pointer Ms becomes the labeling start measure or when the number of standard measures that can be displayed in one step is exceeded. Are registered as the step number iRow (Ms.iRow) of the measure data Measure of the measure specified by the pointer Ms, and the step feed flag iRPass (Ms.iRPass) having a value “1” indicating the presence of step feed is set. Set up.

  As described above, in the first embodiment, by analyzing the song structure based on the measure data Measurement [0] to [N] and the song data MidiEvent [0] to [N], the melody overlaps in the song. It is divided into a plurality of sections (labeled bar sections) such as sections similar to each other. Then, as in the example shown in FIG. 17, since the end of each divided section is set to be a bar at the end of each stage displayed as a score, an easy-to-read score corresponding to the music structure is displayed. It becomes possible.

  Further, in the present embodiment, the degree of coincidence of the comparison destination bar Lu with respect to the comparison source bar Re is determined by the structural analysis process (see FIG. 9). The range of the comparison measure Lu, in which “relative matching degree”, “relative directional matching degree” and “rhythm matching degree” are consecutive, is expressed as “perfect matching section”, “relative matching section”, “relative directional matching section” and Since it is divided into “rhythm matching sections”, the music is divided into a plurality of sections, that is, a section where melody overlaps, a section where melody is similar, a section where pitch changes are similar, and a section where rhythms match according to the music structure. be able to.

[Second Embodiment]
Next, a second embodiment will be described with reference to FIGS. Since the configuration of the second embodiment is the same as that of the first embodiment described above, the description thereof is omitted. In the first embodiment described above, the end of each divided section is set so as to be a bar at the end of each stage displayed in the score, whereas in the second embodiment, there are a plurality of divided sections. When straddling the stage, the bar at the end of each stage displayed in the score is selected and set so that no continuous sound from the preceding stage to the subsequent stage is generated. Hereinafter, the operation of the “step feed determination process” according to the second embodiment will be described.

(1) Operation of step feed judgment processing
FIG. 18 is a flowchart showing the operation of the advance determination process according to the second embodiment. As in the first embodiment described above, when this process is executed via step SJ5 (see FIG. 15) of the display condition setting process, the CPU 1 proceeds to step SL1 shown in FIG. The counter MsCnt that counts the number is incremented to be incremented. Next, in step SL2, a value for designating the next measure after the measure designated by the pointer Ms is set in the pointer MsN. In step SL3, it is determined whether or not the measure designated by the pointer MsN is the labeling head measure.

  If it is a labeling head measure, the determination result is “YES”, and the flow proceeds to step SL4. In step SL4, the value stored in the register Row is registered as the stage number iRow (Ms.iRow) in the measure data Measurement of the measure specified by the pointer Ms, while the advance flag iRPAss in the measure data Measurement is included. As (Ms.iRPass), a value “1” representing the presence of step feed is set. Next, in step SL5, the register Row and the counter RwCnt are incremented and incremented, while the counter MsCnt is reset to zero and the process is terminated.

  As described above, when the next of the measure specified by the pointer Ms is the labeling head measure, the value stored in the register Row is set to the column number iRow (Ms.Ms.) in the measure data Measurement of the measure specified by the pointer Ms. iRow) and a step flag iRPass (Ms.iRPass) having a value “1” indicating the presence of step feed is set.

  On the other hand, if the next of the measure specified by the pointer Ms is not the labeling first measure, the determination result in step SL3 is “NO”, and the flow proceeds to step SL6. In step SL6, it is determined whether or not the value of the counter MsCnt that counts the number of bars included in one stage is equal to or greater than the number of standard bars in one stage. If the value of the counter MsCnt is less than the number of standard measures in one stage, the determination result is “NO”, the process proceeds to step SL12, and the value stored in the register Row is used as the measure data of the measure specified by the pointer Ms. While registering as a step number iRow (Ms.iRow) in Measurement, a step flag iRPass having a value “0” indicating no step feed is set, and this processing is completed.

  On the other hand, if the value of the counter MsCnt is equal to or larger than the number of standard measures in one stage, the determination result in step SL6 is “YES”, the process proceeds to step SL7, and the initial value “1” is set to the pointer iMs. Next, in step SL8, it is determined whether or not the pointer iMs has exceeded a predetermined number of searches, that is, whether or not the number of bars that can be displayed in one stage has been exceeded. If the number of bars that can be displayed in one row is not exceeded, the determination result is “YES”, and the flow proceeds to step SL9.

  In step SL9, the pointer MsN is set to a value that specifies a measure iMs ahead (Ms + iMs) from the measure specified by the pointer Ms. Subsequently, in step SL10, it is determined whether or not the measure specified by the pointer MsN is the labeling head measure. If it is not the labeling first measure, the determination result is “NO”, the process proceeds to step SL11, the pointer iMs is incremented, and the process returns to step SL8 described above.

  Thereafter, the steps SL8 to SL11 are repeated until the stepped pointer iMs exceeds the predetermined number of searches, that is, the number of bars that can be displayed in one stage is reached. From the next measure until the number of measures that can be displayed in one row is reached, the presence or absence of a labeling head measure is searched.

  When the labeling head measure is not searched and the incremented pointer iMs exceeds the predetermined number of searches and reaches the number of measures that can be displayed in one stage, the determination result in step SL8 is “NO”, and the process proceeds to step SL13. Then, the continuous sound check process is executed to finish the present process. In the continuous sound check process, as will be described later, a bar that does not have a continuous sound that crosses the bars is searched until the number of bars that can be displayed in one stage is reached, and a step is set in the corresponding bar.

  On the other hand, if a labeling head measure is found before the number of measures that can be displayed in one row is exceeded, the determination result in step SL10 is “YES”, and the flow advances to step SL12. In step SL12, the value stored in the register Row is registered as the step number iRow (Ms.iRow) in the measure data Measurement of the measure specified by the pointer Ms, and the value “0” representing no advance is set. After the step-up flag iRPass (Ms.iRPass) is set, this process ends.

(2) Operation of Continuous Sound Check Process Next, the operation of the continuous sound check process will be described with reference to FIGS. When this processing is executed through step SL13 (see FIG. 18) of the above-described step-up determination processing, the CPU 1 proceeds to step SM1 shown in FIG. 19 and straddles the next measure from the measure specified by the pointer Ms. Determine if there is a continuous tone. If there is no continuous sound, the determination result is “YES”, and the process proceeds to Step SM2.

  In step SM2, the value stored in the register Row is registered as the column number iRow (Ms.iRow) in the measure data Measurement of the measure specified by the pointer Ms, while the step flag iRPAss in the measure data Measurement is stored. As (Ms.iRPass), a value “1” representing the presence of step feed is set. Subsequently, in step SM3, the register Row and the counter RwCnt are incremented and incremented, and the counter MsCnt that counts the number of measures included in one stage is reset to zero and the process is terminated.

  On the other hand, if there is a continuous sound that extends from the measure specified by the pointer Ms to the next measure, the determination result in step SM1 is “NO”, and the process proceeds to step SM4. In step SM4, an initial value “1” is set to the pointer iMs. In steps SM5 to SM10, while the pointer iMs is stepped up until the number of bars that can be displayed in one stage is reached, a bar that is not stepped over, that is, a bar that does not have a continuous sound across the bars is searched for.

  That is, in step SM5, it is determined whether or not the pointer iMs has exceeded a predetermined number of searches, that is, whether or not the number of bars that can be displayed in one stage has been exceeded. If the number of bars that can be displayed in one row is not exceeded, the determination result is “YES”, and the flow proceeds to step SM6. In step SM6, the pointer Msc is set to a value that specifies a measure iMs previous (Ms-iMs) from the measure specified by the pointer Ms. Subsequently, at step SM7, it is determined whether or not there is a continuous sound extending from the measure specified by the pointer Msc to the next measure.

  If there is a continuous sound, the determination result here is “NO”, and the process proceeds to step SM8. In step SM8, the pointer Msc is set to a value that specifies a measure iMs (Ms + iMs) after the measure specified by the pointer Ms. Subsequently, in step SM9, it is determined whether or not there is a continuous sound extending from the measure specified by the pointer Msc to the next measure. If there is a continuous sound, the determination result here is “NO”, the process proceeds to step SM10, the pointer iMs is incremented, and then the process returns to step SM5 described above.

  Thereafter, until the stepped pointer iMs exceeds a predetermined number of searches, that is, until the number of bars that can be displayed in one stage is reached, the above steps SM5 to SM10 are repeated to have a continuous sound across the bars. Find the bars that are not. If the corresponding bar is not searched, the determination result in step SM5 is “NO”, the process proceeds to step SM3 described above, the register Row and the counter RwCnt are incremented, and the counter MsCnt is reset to zero. To finish this process.

  On the other hand, when there is no continuation sound in the measure iMs ahead of the measure specified by the pointer Ms (Ms-iMs), the determination result in step SM7 is “YES”, which is shown in FIG. Proceed to step SM11. If there is no continuous sound at the measure iMs after the measure specified by the pointer Ms (Ms + iMs), the determination result at step SM9 is “YES”, and step SM18 shown in FIG. move on. In the following, description of the operation will be divided into a case where no continuous sound exists in the measure iMs before (Ms-iMs) and a case where no continuous sound exists in the measure iMs after (Ms + iMs).

<When no continuous sound exists in the measure iMs before (Ms-iMs)>
In this case, the process proceeds to step SM11 shown in FIG. 20, and a step flag iRPass (Ms.iRPass) having a value “1” indicating the presence of step advance is set in the measure data Measurement of the measure designated by the pointer Msc. Next, at step SM12, the register Row and the counter RwCnt are incremented and incremented, and the counter MsCnt is reset to zero. Subsequently, in step SM13, the pointer Msc is updated so as to designate the next measure.

  Thereafter, in steps SM14 to SM16, every time the pointer Msc is incremented until the measure designated by the pointer Msc matches the measure designated by the pointer Ms, the measure designated by the incremented pointer Msc is changed. While registering the value stored in the register Row as the step number iRow (Msc.iRow) of the measure data Measurement, as the step-up flag iRPass (Ms.iRPass) in the measure data Measurement of the measure specified by the pointer Ms, A value “0” representing no step feed is set. When the measure specified by the pointer Msc matches the measure specified by the pointer Ms, the determination result in step SM14 is “NO”, and the present process ends.

<When no continuous sound exists in the bar after iMs pointers (Ms + iMs)>
In this case, the process proceeds to step SM18 shown in FIG. 20, and a step flag iRPass (Ms.iRPass) having a value “1” representing the presence of step advance is set in the measure data Measurement of the measure designated by the pointer Msc. Next, in steps SM19 to SM21, every time the pointer Ms is incremented until the measure designated by the pointer Ms matches the measure designated by the pointer Msc, the measure of the measure designated by the incremented pointer Ms. The value stored in the register Row is registered as the step number iRow (Ms.iRow) of the data Measurement, while the step flag iRPass (Ms.iRPass) in the measure data Measurement of the measure specified by the pointer Ms is used. A value “0” representing no feed is set.

  When the measure specified by the pointer Ms matches the measure specified by the pointer Msc, the determination result in step SM19 becomes “NO”, the process proceeds to step SM17, and the register Row and the counter RwCnt are incremented to be incremented. At the same time, the counter MsCnt that counts the number of measures included in one stage is reset to zero, and the process ends. In this way, in the continuous sound check process, a bar that does not have a continuous sound that crosses the bars is searched until the number of bars that can be displayed in one stage is reached, and the step-up setting is performed at the corresponding bar.

  As described above, in the step-by-step determination process according to the second embodiment, when performing step-up exceeding the number of standard measures that can be displayed in one step, a measure that does not have a continuous sound that straddles the measure is searched for. Since the step-up setting is performed at the bars to be displayed, it is possible to display an easy-to-read score.

[Third Embodiment]
Next, a third embodiment will be described with reference to FIGS. Since the structure of 3rd Embodiment is the same as 1st Embodiment mentioned above, it abbreviate | omits about the description. In the first embodiment described above, the end of each divided section is set so as to be a bar at the end of each stage displayed in the score, whereas in the third embodiment, there are a plurality of divided sections. When straddling the steps, set the step feed so that bars with high similarity are arranged as much as possible above and below the steps. Hereinafter, the operation of the “step feed determination process” according to the third embodiment will be described.

(1) Operation of step feed judgment processing
FIG. 21 is a flowchart showing the operation of the advance determination process according to the third embodiment. As in the first embodiment described above, when this process is executed via step SJ5 (see FIG. 15) of the display condition setting process, the CPU 1 proceeds to step SN1 shown in FIG. 21 and is included in one stage. A counter MsCnt that counts the number of bars is incremented and incremented. Next, in step SN2, a value for designating the next measure after the measure designated by the pointer Ms is set in the pointer MsN. In step SN3, it is determined whether or not the measure designated by the pointer MsN is the labeling head measure.

  If it is a labeling head measure, the determination result is “YES”, and the process proceeds to Step SN4. In step SN4, the value stored in the register Row is registered as the column number iRow (Ms.iRow) in the measure data Measurement of the measure specified by the pointer Ms, while the step flag iRPAss in the measure data Measurement is registered. As (Ms.iRPass), a value “1” representing the presence of step feed is set. Next, in step SL5, the register Row and the counter RwCnt are incremented and incremented, while the counter MsCnt is reset to zero and the process is terminated.

  Thus, if the next measure after the measure specified by the pointer Ms is the labeling start measure, the value stored in the register Row is set to the column number iRow (Ms in the measure data Measurement of the current measure specified by the pointer Ms. .IRow) and a step-up flag iRPass (Ms.iRPass) having a value “1” indicating the presence of step-feed is set.

  On the other hand, if the next of the measure specified by the pointer Ms is not the labeling first measure, the determination result in step SN3 is “NO”, and the process proceeds to step SN6. In step SN6, it is determined whether or not the value of the counter MsCnt for counting the number of bars included in one stage is equal to or greater than the number of standard bars in one stage. If the value of the counter MsCnt is less than the number of standard measures in one stage, the determination result is “NO”, the process proceeds to step SN12, and the value stored in the register Row is used as the measure data for the measure specified by the pointer Ms. While registering as the middle row number iRow (Ms.iRow), a step flag iRPass (Ms.iRPass) with a value “0” indicating no step feed is set, and this processing is completed.

  On the other hand, if the value of the counter MsCnt is equal to or larger than the standard number of bars in one stage, the determination result in step SN6 is “YES”, the process proceeds to step SN7, and the initial value “1” is set to the pointer iMs. Next, in step SN8, it is determined whether or not the pointer iMs has exceeded a predetermined number of searches, that is, whether or not the number of bars that can be displayed in one stage has been exceeded. If the number of bars that can be displayed in one row is not exceeded, the determination result is “YES”, and the flow proceeds to step SN9.

  In step SN9, a value that designates a measure iMs ahead (Ms + iMs) from the measure designated by the pointer Ms is set in the pointer MsN. Subsequently, in step SN10, it is determined whether or not the measure designated by the pointer MsN is the labeling head measure. If it is not the labeling head measure, the determination result is “NO”, the process proceeds to step SN11, the pointer iMs is incremented, and the process returns to step SN8 described above.

  Thereafter, the steps SN8 to SN11 are repeated until the incremented pointer iMs exceeds a predetermined number of searches, that is, until the number of bars that can be displayed in one stage is exceeded. From the next measure until the number of measures that can be displayed in one row is reached, the presence or absence of a labeling head measure is searched.

  When the labeling head measure is not searched and the incremented pointer iMs exceeds the predetermined number of searches and reaches the number of measures that can be displayed in one stage, the determination result in step SN8 is “NO”, and the process proceeds to step SN13. Then, the similar part check process is executed to finish the present process. In the similar part check processing, as will be described later, a measure similar to the top measure in the upper row is searched until the number of measures that can be displayed in one row is reached, and a step advance setting is performed in the corresponding measure.

  On the other hand, if a labeling head measure is found before the number of measures that can be displayed in one row is exceeded, the determination result in step SN10 is “YES”, the process proceeds to step SN12, and is stored in the register Row. The value is registered as the step number iRow (Ms.iRow) in the measure data Measurement of the current measure specified by the pointer Ms, and the step flag iRPass (Ms.iRPass) having a value “0” indicating no step is set. Set and finish this process.

(2) Operation of Similar Location Check Processing Next, the operation of the similar location check processing will be described with reference to FIGS. When this process is executed via step SN13 (see FIG. 21) of the above-described advance determination process, the CPU 1 proceeds to step SP1 shown in FIG. In step SP1, the matrix element Mat1 [A] [B] described above indicates the matching rate between the measure A specified by the pointer Ms and the first measure B of the step located above the step including the measure A when displayed as a score. From the above, it is determined whether the coincidence rate read is equal to or more than half of the coincidence threshold, that is, whether the measure specified by the pointer Ms is similar to the top measure of the upper row.

  If the measure specified by the pointer Ms is similar to the top first measure, the determination result is “YES”, the process proceeds to step SP2, and the value stored in the register Row is set to the value of the measure specified by the pointer Ms. While being registered as a column number iRow (Ms.iRow) in the measure data Measurement, a value “1” indicating that there is a feed is set as the step flag iRPass (Ms.iRPass) in the measure data Measurement. In step SP3, the register Row and the counter RwCnt are incremented and incremented, and the counter MsCnt is reset to zero to complete the present process.

  On the other hand, if the measure specified by the pointer Ms is not similar to the upper first measure, the determination result in step SP1 is “NO”, and the process proceeds to step SP4. In step SP4, an initial value “1” is set to the pointer iMs. Then, in steps SP5 to SP10, the bar iMs is incremented until the number of bars that can be displayed in one row is reached, and a measure similar to the top head measure is searched.

  That is, in step SP5, it is determined whether or not the pointer iMs has exceeded a predetermined number of searches, that is, whether or not the number of bars that can be displayed in one stage has been exceeded. If the number of bars that can be displayed in one row is not exceeded, the determination result is “YES”, and the flow proceeds to step SP6. In step SP6, the pointer Msc is set to a value that specifies a measure iMs previous (Ms-iMs) from the measure specified by the pointer Ms. Subsequently, in step SP7, it is determined whether or not the measure specified by the pointer Msc is similar to the top first measure.

  If the measure specified by the pointer Msc is not similar to the top first measure, the determination result is “NO”, and the process proceeds to step SP8, where the measure iMs (Ms + iMs) after the measure specified by the pointer Ms is selected. A designated value is set in the pointer Msc. Subsequently, in step SP9, it is determined whether or not the measure specified by the pointer Msc is similar to the top first measure. If the measure specified by the pointer Msc is not similar to the upper first measure, the determination result is “NO”, the process proceeds to step SP10, the pointer iMs is incremented, and the process returns to step SP5 described above.

  Thereafter, until the stepped pointer iMs exceeds the predetermined number of searches, that is, until the number of bars that can be displayed in one stage is reached, the above steps SP5 to SP10 are repeated, whereby a bar similar to the top head bar is selected. Find out. If the corresponding bar is not searched, the determination result in step SP5 is “NO”, and the process proceeds to step SP3 described above. The register Row and the counter RwCnt are incremented and incremented, and the counter MsCnt is reset to zero. To finish this process.

  On the other hand, if there is a measure similar to the upper first measure from the measure specified by the pointer Ms iMs ahead (Ms-iMs), the determination result in step SP7 is “YES”, which is shown in FIG. Proceed to step SP11. If there is a measure similar to the top first measure after the pointer iMs from the measure specified by the pointer Ms (Ms + iMs), the determination result in step SP9 is “YES”, and the process proceeds to step SP18 shown in FIG. move on. In the following, the description of the operation is divided into a case where a measure similar to the top first measure exists before iMs pointers and a case where a measure similar to the top first measure exists after iMs pointers.

<When a measure similar to the top first measure exists before iMs pointers>
In this case, the process proceeds to step SP11 shown in FIG. 23, and a step flag iRPass (Ms.iRPass) having a value “1” indicating the presence of step advance is set in the measure data Measurement of the measure designated by the pointer Msc. Next, in step SP12, the register Row and the counter RwCnt are incremented and incremented, and the counter MsCnt that counts the number of bars included in one stage is reset to zero. Subsequently, in step SP13, the pointer Msc is updated so as to designate the next measure.

  Thereafter, in steps SP14 to SP16, every time the pointer Msc is incremented until the measure designated by the pointer Msc matches the measure designated by the pointer Ms, the measure designated by the incremented pointer Msc is changed. While registering the value stored in the register Row as the step number iRow (Msc.iRow) of the measure data Measurement, as the step-up flag iRPass (Ms.iRPass) in the measure data Measurement of the measure specified by the pointer Ms, A value “0” representing no step feed is set. When the measure specified by the pointer Msc matches the measure specified by the pointer Ms, the determination result in step SP14 is “NO”, and the present process ends.

<When a measure similar to the top first measure exists after iMs pointers>
In this case, the process proceeds to step SP18 shown in FIG. 23, and a step flag iRPass (Ms.iRPass) having a value “1” indicating the presence of step advance is set in the measure data Measurement of the measure designated by the pointer Msc. Next, in steps SP19 to SP21, each time the pointer Ms is incremented until the measure designated by the pointer Ms matches the measure designated by the pointer Msc, the measure of the measure designated by the incremented pointer Ms. The value stored in the register Row is registered as the step number iRow (Ms.iRow) of the data Measurement, while the step flag iRPass (Ms.iRPass) in the measure data Measurement of the measure specified by the pointer Ms is used. A value “0” representing no feed is set.

  When the measure specified by the pointer Ms matches the measure specified by the pointer Msc, the determination result in step SP19 becomes “NO”, the process proceeds to step SP17, and the register Row and the counter RwCnt are incremented to be incremented. At the same time, the counter MsCnt that counts the number of measures included in one stage is reset to zero, and the process ends. In this way, in the similar portion check process, a measure similar to the top measure in the upper row is searched until the number of measures that can be displayed in one row is reached, and the step-up setting is performed in the corresponding measure.

  As described above, in the step determination process according to the third embodiment, a measure similar to the upper first measure is searched until the number of measures that can be displayed in one step is reached, and the step is set in the corresponding measure. Therefore, bars with high similarity are arranged on the top and bottom of the stage, and it is possible to display an easy-to-read score.

[Fourth Embodiment]
Next, a fourth embodiment will be described with reference to FIGS. Since the configuration of the fourth embodiment is the same as that of the first embodiment described above, the description thereof is omitted. In the fourth embodiment, a measure for which the performance cost is as low as possible and easy to play is selected as the last measure of the page, and page turning is set for the measure, thereby facilitating the user's page turning operation. Hereinafter, the operation of the “display condition setting process” according to the fourth embodiment will be described.

(1) Operation of display condition setting processing
FIG. 24 is a flowchart showing the operation of the display condition setting process according to the fourth embodiment. As in the first embodiment described above, when this process is executed via step SA4 (see FIG. 5) of the main routine, the CPU 1 proceeds to step SQ1 shown in FIG. In steps SQ1 to SQ2, a register Page that holds the page number iPage, a register Row that holds the stage number iRow, a counter RwCnt that counts the number of stages, and a counter MsCnt that counts the number of bars included in one stage are initialized (zero reset). ) Subsequently, in step SQ3, a value specifying the first measure is set in the pointer Ms.

  Next, in step SQ4, it is determined whether or not the measure specified by the pointer Ms exceeds the end of the song. If it does not exceed the end of the song, the determination result is “NO”, and the process proceeds to step SQ5. In step SQ5, it is determined whether or not the bar designated by the pointer Ms is the labeling head bar. If it is not the labeling first measure, the determination result is “NO”, the process proceeds to step SQ6, the pointer Ms is incremented to designate the next measure, and then the process returns to step SQ4.

  On the other hand, if the measure specified by the pointer Ms is the labeling head measure, the determination result in step SQ5 is “YES”, and the flow advances to step SQ7. In step SQ7, a step-up setting is set in which a value “1” indicating the presence of step feed is set in the step feed flag iRPass in the measure data “Measure” of the previous measure, and the value of the register Row is incremented according to this step feed. To advance. Next, in step SQ8, it is determined whether or not the number of stages stored in the register Row has reached the number of stages for page feed.

  If the number of pages to be paged is reached, the determination result is “YES”, and the page feed position verification process is executed via step SQ9. In the page feed position verification process, as will be described later, in the situation where the number of pages to be paged has been reached, if there are notes or rests in the period equal to or greater than the last quarter note of the measure at the end of the column, If the performance cost of a bar is less than the specified value, page feed is set at the bar at the end of that stage.

  When such page feed position verification processing is completed, the process proceeds to step SQ10. Also, when the number of pages to be paged is not reached, the determination result in step SQ8 is “NO”, and the process proceeds to step SQ10. In step SQ10, a value specifying the last measure in the group (labeled section) is set in the pointer MsTerm. Next, whether or not the number of bars (MsTerm-Ms) from the last bar of the labeled section specified by the pointer MsTerm to the bar specified by the pointer Ms exceeds the maximum number of bars that can be displayed in one row. Judging.

  If the maximum number of bars that can be displayed in one row is not exceeded, the determination result is “NO”, and the process returns to step SQ4 described above. On the other hand, if the maximum number of bars that can be displayed in one row is exceeded, the determination result in step SQ11 is “YES”, and the flow advances to step SQ12. In step SQ12, the value stored in the register Row is designated by the pointer Ms when the next measure after the measure designated by the pointer Ms becomes the labeling top measure or when the number of standard measures that can be displayed in one row is exceeded. Is registered as the step number iRow (Ms.iRow) of the measure data “Measure” of the measure to be set, and the step-by-step determination process for setting the step-feed flag iRPass (Ms.iRPass) having a value “1” indicating the presence of step-feed is executed.

  Next, in step SQ13, a value that designates the next measure at the end of the group (labeled section) is set in the pointer Ms, and then the process returns to step SQ4. Thereafter, steps SQ4 to SQ13 described above are repeated until the measure specified by the pointer Ms exceeds the end of the song. If the measure specified by the pointer Ms exceeds the end of the song, the determination result in step SQ4 is “YES”, and the process is terminated.

(2) Operation of page feed position verification processing
Next, the operation of the page feed position verification process will be described with reference to FIGS. When this process is executed via step SQ9 (see FIG. 24) of the display condition setting process according to the fourth embodiment described above, the CPU 1 proceeds to step SR1 shown in FIG. In step SR1, it is determined whether or not there are any notes (continuous notes) or rests in a period equal to or longer than the last quarter note of the measure specified by the pointer Ms.

  If there is no corresponding note or rest, the determination result is “YES”, the process proceeds to step SR2, and the value stored in the register Page is changed to the page number iPage in the measure data Measurement of the measure specified by the pointer Ms. While registering as (Ms.iPage), a value “1” representing the presence of page feed is set as the page feed flag iPPpass (Ms.iPPpass) in the measure data Measurement. In step SR3, the register Row and the counter RwCnt are incremented and incremented, and the counter MsCnt is reset to zero to complete the present process.

  On the other hand, if there is a note or rest in a period equal to or longer than the last quarter note of the measure specified by the pointer Ms, the determination result in step SR1 is “NO”, and the process proceeds to step SR4. In step SR4, an initial value “1” is set to the pointer iRw. Next, in step SR5, it is determined whether or not the value of the pointer iRw has exceeded a predetermined number of searches. If the pointer iRw does not exceed the predetermined number of searches, the determination result is “YES”, and the flow proceeds to step SR6. In step SR6, a value designating the last measure before the iRw stage is stored in the pointer Msc.

  Next, in step SR7, it is determined whether or not there are any notes (continuous notes) or rests in a period equal to or longer than the last quarter note of the measure specified by the pointer Msc. If there is no corresponding note (continuation sound) or rest, the determination result is “YES”, the process proceeds to step SR8, the pointer iRw is incremented and stepped, and then the process returns to step SR5.

  Thereafter, the pointer iRw is incremented until the value of the pointer iRw exceeds a predetermined number of searches, and the last bar (i.e., the bar specified by the pointer Msc) preceding the iRw stage that goes up in response is incremented for that bar. It is determined whether or not there is a note (continuation sound) or rest in a period equal to or longer than the last quarter note. When a corresponding note (continuation tone) or rest is found, the determination result in step SR7 is “NO”, and the process proceeds to step SR9, where the page data is measured in the measure data Measurement of the measure specified by the pointer Msc. A page feed flag iPPpass (Ms.iPPpass) having a value “1” representing “1” is set. As a result, the page feed setting is performed at a measure having a note (continuation sound) or a rest.

  Next, in step SR10, the register Page is incremented and incremented, and the counter RwCnt that counts the number of stages in the page is reset to zero. In steps SR11 to SR15, each time the pointer Msc is incremented until the measure designated by the pointer Msc matches the measure designated by the pointer Ms, the measure of the measure designated by the incremented pointer Msc is obtained. A value stored in the register Page is registered as the page number iPage (Ms.iPage) in the data Measurement. Further, if the advance flag iRPass in the measure data Measurement of the measure specified by the stepped pointer Msc is “1”, that is, if the measure specified by the pointer Msc is set to advance, the counter RwCnt is incremented. . When the measure specified by the pointer Msc matches the measure specified by the pointer Ms, the determination result in step SR15 is “YES”, and this processing is finished.

  On the other hand, even if the pointer iRw is stepped up to exceed the predetermined number of searches, if a measure having a note (continuation sound) or rest at the end is not found, the determination result in the above-described step SR5 is “NO”. The process proceeds to step SR16 shown in FIG. In step SR16, it is determined whether or not the performance cost iCost (Ms.iCost) in the measure data Measurement of the measure specified by the pointer Ms is equal to or less than a specified value.

  If the performance cost iCost (Ms.iCost) is equal to or less than the specified value, the determination result is “YES”, the process proceeds to step SR17, and the value stored in the register Page is stored in the measure data of the measure specified by the pointer Ms. While being registered as the middle page number iPage (Ms.iPage), the page feed flag iPPpass (Ms.iPPpass) in the measure data Measurement is set to a value “1” indicating the presence of page feed. In step SR18, the register Row and the counter RwCnt are incremented and incremented, and the counter MsCnt is reset to zero and the process is terminated.

  On the other hand, if the performance cost iCost (Ms.iCost) of the measure specified by the pointer Ms exceeds the specified value, the determination result in step SR16 is “NO”, and the process proceeds to step SR19. In step SR19, an initial value “1” is set to the pointer iRw. Next, in step SR20, it is determined whether the value of the pointer iRw has exceeded a predetermined number of searches. If the pointer iRw exceeds the predetermined number of searches, the determination result is “NO”, and the process proceeds to step SR17 described above.

  On the other hand, if the pointer iRw does not exceed the predetermined number of searches, the determination result in step SR20 is “YES”, the process proceeds to step SR21, and a value that specifies the last measure before the iRw stage is set in the pointer Msc. Store. Subsequently, in step SR22, it is determined whether or not the performance cost iCost (Msc.iCost) of the measure specified by the pointer Msc is equal to or less than a specified value. If the performance cost iCost (Msc.iCost) of the measure exceeds the specified value, the determination result is “NO”, the process proceeds to step SR23, the pointer iRw is incremented, and the process proceeds to step SR20 described above. Return processing.

  Thereafter, each time the pointer iRw is incremented until the predetermined number of searches is exceeded, it is determined whether or not the performance cost iCost (Msc.iCost) of the measure preceding the iRw stage going up is equal to or less than a specified value. . When the performance cost iCost below the specified value is found, the determination result in step SR22 is “YES”, the process proceeds to step SR24, and the value “1” indicating that page feed is present in the measure data Measurement of the measure specified by the pointer Msc. ”Page feed flag iPPpass (Ms.iPPpass) is set.

  Next, in step SR25, the register Page is incremented and incremented, and the counter RwCnt that counts the number of stages in the page is reset to zero. In steps SR26 to SR30, each time the pointer Msc is incremented until the measure specified by the pointer Msc matches the measure specified by the pointer Ms, the measure data of the measure specified by the incremented pointer Msc is obtained. The value stored in the register Page is registered as the page number iPage (Ms.iPage) in the Measurement. Further, if the advance flag iRPass in the measure data Measurement of the measure specified by the stepped pointer Msc is “1”, that is, if the measure specified by the pointer Msc is set to advance, the counter RwCnt is incremented. . When the measure specified by the pointer Msc matches the measure specified by the pointer Ms, the determination result in step SR15 is “YES”, and this processing is finished.

  As described above, in the fourth embodiment, when the number of pages to be paged is reached, there is a note or rest in a period equal to or longer than the last quarter note of the measure at the end of the step, or the performance of the measure at the end of the step. When the cost is less than or equal to the specified value, the page turning is set at the bar at the end of the stage, so that the user can easily turn the page.

[Modification]
Next, a modification of the fourth embodiment will be described with reference to FIG. FIG. 27 is a flowchart showing the operation of the display condition setting process according to the modification. As in the first embodiment described above, when this process is executed via step SA4 (see FIG. 5) of the main routine, the CPU 1 proceeds to step SS1 shown in FIG. In steps SS1 to SS2, a register Page that holds the page number iPage, a register Row that holds the stage number iRow, a counter RwCnt that counts the number of stages, and a counter MsCnt that counts the number of bars in one stage are initialized (zero reset). . Subsequently, in step SS3, a value specifying the first measure is set in the pointer Ms.

  Next, in step SS4, it is determined whether or not the measure specified by the pointer Ms has exceeded the end of the song. If it does not exceed the end of the song, the determination result is “NO”, and the step determination process is executed via step SS5. In the step-by-step determination process, when the next of the measure specified by the pointer Ms becomes the labeling start measure or when the number of standard measures that can be displayed in one step is exceeded, the value stored in the register Row is set by the pointer Ms. While registering as the step number iRow (Ms.iRow) of the measure data Measure of the specified measure, a step flag iRPass (Ms.iRPass) having a value “1” indicating presence of step feed is set.

  Subsequently, in step SS6, it is determined whether or not the advance flag iRPass (Ms.iRPass) in the measure data Measurement of the measure designated by the pointer Ms is a value “1” indicating that there is a advance. If the advance flag iRPass (Ms.iRPass) is “0” (no advance), the determination result is “NO”, and the process proceeds to Step SS7. In step SS7, the value of the register Page is registered as the page number iPage (Ms.iPage) of the measure data Measure of the measure specified by the pointer Ms, and the page feed flag iPPpass (0) indicating no page feed is set. Ms.iPPpass). Then, the process proceeds to step SS10, the pointer Ms is incremented so as to designate the next measure, and then the process returns to the above-described step SS4.

  On the other hand, if the advance flag iRPass (Ms.iRPass) is “1” (with advance), the determination result in Step SS6 is “YES”, and the process proceeds to Step SS8. In step SS8, it is determined whether or not the value of the counter RwCnt that counts the number of stages in one page is equal to or greater than the standard number of stages in one page. If the value of the counter RwCnt is less than the standard stage number, the determination result is “NO”, and the process proceeds to Step SS7 described above.

  On the other hand, when a step is generated in the above-described step determination process (step SS5), and the value of the counter RwCnt advanced by this exceeds the standard number of pages of one page, the determination result in step SS8 is “YES”. The process proceeds to step SS9. In step SS9, if there is a note or rest in a period longer than the last quarter note of the measure at the end of the step, or if the performance cost of the measure at the end of the step is less than the specified value, the measure at the end of the step is A page feed position verification process for setting page feed is executed. Thereafter, the process proceeds to step SS10, the pointer Ms is incremented to designate the next measure, and then the process returns to the above-described step SJ4. Thereafter, the above steps SS4 to SS10 are repeated until the measure specified by the pointer Ms exceeds the end of the music piece. When the measure specified by the pointer Ms exceeds the end of the song, the determination result in step SS4 is “YES”, and the process is finished.

  Thus, according to the modified example, as in the fourth embodiment, when the number of stages for page turning is reached, there are notes or rests in a period equal to or longer than the last quarter note of the last measure of the stage, When the performance cost of the bar at the end of the stage is equal to or less than the specified value, page turning is set at the bar at the end of the stage, so that the user can easily turn the page.

It is a block diagram which shows the structure of 1st Embodiment by this invention. It is a figure which shows the structure of music data MidiEvent. It is a figure which shows the structure of measure data Measurement. It is a figure for demonstrating the relationship of the column number iRow, the page advance flag iRPass, the page number iPage, and the page feed flag iPPpass in the measure data Measurement. It is a flowchart which shows operation | movement of a main routine. It is a flowchart which shows operation | movement of a structure analysis process. It is a flowchart which shows the operation | movement of a matrix process. It is a flowchart which shows the operation | movement of a group labeling process. It is a flowchart which shows the operation | movement of a labeling process. It is a flowchart which shows the operation | movement of a similar partial labeling correction | amendment 1 process. It is a flowchart which shows the operation | movement of a labeling verification process. It is a flowchart which shows the operation | movement of a labeling verification process. It is a figure for demonstrating operation | movement of a labeling verification process. It is a flowchart which shows the operation | movement of a performance difficulty level calculation process. It is a flowchart which shows operation | movement of a display condition setting process. It is a flowchart which shows the operation | movement of a step-feed determination process. It is a musical score which shows an example of a result output. It is a flowchart which shows the operation | movement of the step-feed determination process by 2nd Embodiment. It is a flowchart which shows the operation | movement of the continuous sound check process by 2nd Embodiment. It is a flowchart which shows the operation | movement of the continuous sound check process by 2nd Embodiment. It is a flowchart which shows the operation | movement of the step-feed determination process by 3rd Embodiment. It is a flowchart which shows the operation | movement of the similar location check process by 3rd Embodiment. It is a flowchart which shows the operation | movement of the similar location check process by 3rd Embodiment. It is a flowchart which shows the operation | movement of the display condition setting process by 4th Embodiment. It is a flowchart which shows the operation | movement of the page feed position verification process by 4th Embodiment. It is a flowchart which shows the operation | movement of the page feed position verification process by 4th Embodiment. It is a flowchart which shows the operation | movement of the display condition setting process by the modification of 4th Embodiment.

Explanation of symbols

1 CPU
2 ROM
3 RAM
4 Input section 5 Display section 6 MIDI interface 7 Electronic musical instrument

Claims (6)

Storage means for storing song data representing each sound constituting the song;
Music dividing means for dividing the music into a plurality of sections according to the music structure obtained by analyzing the music data stored in the storage means;
When song data stored in the storage means is displayed as a score formed from a plurality of stages, display setting is made so that the end of each section divided by the song dividing means becomes the end of each stage of the score Display setting means ,
Output means for displaying and outputting the score set by the display setting means to the display means;
In a score display device comprising:
The music dividing means is
An operation of assigning a comparison source measure to one measure of music data stored in the storage means and assigning a comparison destination measure to the remaining other measures and determining a degree of coincidence of each comparison destination measure with respect to the comparison source measure, A determination unit that repeats until all the measures included in the song data are assigned to the comparison source measure,
A division that divides a range of comparison destination bars in which the degree of coincidence equal to or higher than a threshold value from among the degree of coincidence of each comparison destination bar determined for each comparison source bar by the determination unit as one section in the music score display apparatus characterized by and means. The determination means includes
Each time a step is advanced from the beginning to the end of a measure with a predetermined time width, the comparison original sound that is sounded in the comparison measure and the comparison destination sound that is sounded in the comparison measure during the stepped time width A complete match determination means for determining a complete match when the pitch of and the comparison original sound and the comparison target sound are not both,
A perfect match degree calculating means for calculating a perfect match degree by dividing a perfect match period obtained by accumulating a time width determined to be a perfect match by the perfect match judgment means by a time corresponding to a measure length;
The dividing means includes
A perfect match section dividing means for dividing, as a perfect match section, a range of comparison destination bars in which perfect match degrees equal to or greater than a threshold value are continuous among the perfect match degrees calculated by the perfect match degree calculation means; The musical score display device according to claim 1, wherein: The determination means includes
Each time a step is advanced from the beginning to the end of a measure with a predetermined time width, the comparison original sound that is sounded in the comparison measure and the comparison destination sound that is sounded in the comparison measure during the stepped time width And a relative match determination means for determining a relative match when the comparison original sound and the comparison target sound are in a transposition relationship,
A relative coincidence calculating unit that calculates a relative coincidence by dividing a relative coincidence period obtained by accumulating a time width determined as a relative coincidence by the relative coincidence determination unit by a time corresponding to a measure length;
The dividing means includes
Relative matching section dividing means for dividing, as a relative matching section, a range of comparison destination bars in which relative matching degrees equal to or greater than a threshold value are continuous among the relative matching degrees calculated by the relative matching degree calculation means. The musical score display device according to claim 1, wherein: The determination means includes
Each time a step is advanced from the beginning to the end of a measure with a predetermined time width, the comparison original sound that is sounded in the comparison measure and the comparison destination sound that is sounded in the comparison measure during the stepped time width And the direction of the pitch difference between the first note of the comparison measure and the comparison note matches the direction of the difference between the first note of the comparison measure and the comparison note Relative direction coincidence determining means for determining relative direction coincidence when
Relative direction coincidence calculating means for calculating a relative direction coincidence by dividing a relative direction coincidence period obtained by accumulating the time width determined as relative direction coincidence by the relative direction coincidence determining unit by a time corresponding to the bar length; With
The dividing means includes
Relative direction matching that divides, as a relative direction matching section, a range of comparison destination bars that have consecutive relative direction matching degrees equal to or greater than a threshold from the relative direction matching degrees of the respective comparison destination bars calculated by the relative direction matching degree calculation unit. score display apparatus according to claim 1, characterized by comprising a segment dividing means. The determination means includes
Each time a step is advanced from the beginning to the end of a measure with a predetermined time width, the comparison original sound that is sounded in the comparison measure and the comparison destination sound that is sounded in the comparison measure during the stepped time width And the difference between the sound generation start time and the mute time between the comparison original sound and the comparison target sound is within the allowable range, and both the comparison original sound and the comparison target sound generated during the stepped time width are Rhythm coincidence determining means for determining a rhythm coincidence when the mute time of the previous sound and the sounding start time of the next sound are within an allowable range for each of the comparison original sound and the comparison target sound that are presently determined and not present When,
A rhythm matching degree calculating means for calculating a rhythm matching degree by dividing a rhythm matching period obtained by accumulating a time width determined to be a rhythm matching by the rhythm matching determination means by a time corresponding to a measure length;
The dividing means includes
Rhythm matching section dividing means for dividing, as a rhythm matching section, a range of comparison destination bars in which a rhythm matching degree equal to or greater than a threshold value is continuous among rhythm matching degrees calculated by the rhythm matching degree calculation means. The musical score display device according to claim 1, wherein: A comparison source measure is assigned to one measure of music data that is stored in the storage means and represents each sound constituting the music, and a comparison destination measure is assigned to the remaining other measures, and each comparison destination measure for the comparison source measure is assigned. A determination process that repeats the operation of determining the degree of coincidence until all the measures included in the song data are assigned comparison source measures;
A division that divides a range of comparison destination bars in which the degree of coincidence equal to or greater than a threshold value from among the degree of coincidence of each comparison destination bar determined for each comparison source bar by this determination process as one section in the music Processing,
When song data stored in the storage means is displayed as a score formed from a plurality of stages, display setting is made so that the end of each section divided by the song division process is the end of each stage of the score Display setting processing to
An output process for displaying the score set in the display setting process on the display means;
Is executed by a computer.

Images