JP4547719B2 - Music score display device and music score display program - Google Patents

Description

  The present invention relates to a musical score display apparatus and a musical score display program for easily displaying notes in a row.

  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 musical score display method for displaying a series of digits so that a performer can easily see even when the pitch of the sound is small or extremely large.

Japanese Patent Laid-Open No. 10-74082

  In the musical score display method disclosed in Patent Document 1, the gradient of a beam is set based on the pitch difference between the sounds at both ends of the sound connected by the beam. Therefore, when three or more sounds are connected by a beam, the pitches of the sounds other than both ends are not considered in the series of sounds to be chained. There is a problem that the inclination of the sound and the note head display position of a series of sounds to be continued do not match and the visual balance is deteriorated.

  Further, in the musical score display method disclosed in Patent Document 1, when the sound connected by the beams is a chord, the gradient of the beam is set using only the highest tone in the chord constituent sounds. However, since the pitch difference between the highest and lowest chords is not always constant, the slope of the beams and the note head display positions of the chord components that are also played are not well balanced in this case. It becomes a series of slopes.

  Furthermore, in the musical score display method disclosed in the above-mentioned Patent Document 1, for example, a so-called column crossing beam connecting a note displayed on a treble clef column and a note displayed on a treble clef column cannot be displayed. There is also a problem that the display form of the beam cannot be adjusted according to the user preference.

  Therefore, the present invention has been made in view of such circumstances, and can display a series of notes in an easy-to-see manner. Further, the present invention can display a series of crossed series and adjust the display form of the series according to user preferences. An object of the present invention is to provide a musical score display device and a musical score display program.

  In order to achieve the above object, according to the first aspect of the present invention, song data storage means for storing song data representing each sound constituting the song, and song data stored in the song data storage means are consecutive. A digit detection means for detecting a tone string, and a correction value generation for generating a slope correction value that is increased or decreased according to the sign of the pitch difference between adjacent sounds in the tone string detected by the digit detection means And a slope according to the pitch difference between the leading sound and the trailing sound of the continuous string detected by the beam detecting means is corrected by the inclination correction value generated by the correction value generating means. And girder inclination determining means for determining the girder inclination.

According to a second aspect of the present invention that is dependent on the first aspect, the correction value generating means includes an adjusting means that adjusts the inclination correction value in accordance with a weight coefficient set by a user.

In the invention according to claim 3 , the consecutive string detection process for detecting a string of consecutive digits from music data representing each sound constituting the song and the consecutive string of sounds detected by the consecutive digit detection process are adjacent to each other. A correction value generation process for generating a slope correction value that is increased or decreased according to the sign of the pitch difference between sounds, and the pitches of the leading and trailing sounds of the continuous string detected by the above-mentioned consecutive digit detection process The computer may execute a beam slope determination process for determining a beam slope by correcting a slope corresponding to the difference with a slope correction value generated in the correction value generation process.

According to a fourth aspect of the present invention, which is dependent on the third aspect, the correction value generating process includes an adjustment process for adjusting a slope correction value according to a weight coefficient set by a user. Display program.

According to the first and third aspects of the present invention, a continuous string is detected from music data representing each sound constituting the music, and a pitch difference between adjacent sounds in the detected continuous sound string is detected. A tilt correction value that is increased or decreased according to positive or negative is generated. Then, the slope according to the pitch difference between the leading and trailing sounds of the detected continuous string is corrected with the above slope correction value to determine the continuous slope, so that the continuous notes are easy to see. Can be displayed.

According to the inventions described in claims 2 and 4 , since the inclination correction value is adjusted according to the weight coefficient set by the user, the display form of the consecutive digits can be adjusted according to the user preference.

Embodiments of the present invention will be described below with reference to the drawings.
A. Configuration FIG. 1 is a block diagram showing a configuration of a score display apparatus according to an embodiment of the present invention. In this figure, the operation unit 10 includes input operation elements such as a key input keyboard and a mouse in addition to the power switch, and generates an event corresponding to the input operation. This event is captured by the CPU 11. The CPU 11 executes various control programs stored in the ROM 12 and controls each part of the apparatus in response to an event generated by the operation unit 10, and its characteristic processing operation will be described in detail later.

  The ROM 12 includes a program area and a data area. Various control programs loaded on the CPU 11 are stored in the program area of the ROM 12. The various control programs include a main routine, musical score information generation processing, individual information generation processing, chord processing, continuous digit group processing, continuous digit processing, step cross continuous digit processing, and musical score display processing, which will be described later. The data area of the ROM 12 stores musical score display data for displaying notes, rests, staffs, and various screen data for forming a GUI screen.

  The RAM 13 includes a work area, a song data area, and a note data area. In the work area of the RAM 13, various register / flag data used for the processing of the CPU 11 are temporarily stored. The song data area of the RAM 13 stores song data for a plurality of songs. The music data is composed of performance data for performance and musical score data for display. The performance data is composed of a plurality of performance tracks [0] to [N] corresponding to performance parts, as shown in FIG. One performance track has performance note data [0] to [N] representing each sound forming a corresponding performance part. One piece of performance note data is composed of a sound generation start time ITime, a tone length lGate, and a pitch pitch represented by an elapsed time (absolute time) from the performance start time.

  In the note data area of the RAM 13, note data [0] to [N] for musical score display, which are derived from the above-mentioned performance note data [0] to [N] by a musical score information generation process described later, are stored. As shown in FIG. 3, note data [0] to [N] generated in correspondence with the performance note data [0] to [N] includes pointer mEvent, sound generation start time ITime, measure number sMeas, beat It is composed of a number sBeat, coordinates (ix, iy), note type cNoteType, code cChord, beam pattern start point cRenKouS, beam pattern pattern end point cRenKouE, tie cTie and step crossing flag cDanCross.

A pointer mEvent designates corresponding note data for performance. The sound generation start time ITime represents the sound generation timing of the note data by the elapsed time from the performance start time. The bar number sMeas represents the bar number including the note data. The beat number sBeat represents the beat number of the note data. The coordinates (ix, iy) represent the display position of the note data on the staff notation as the background image. Note type cNoteType represents the type of note. For example, “1” represents a whole note, “2” represents a half note, and “4” represents a quarter note.

  The chord cChord is a non-chord when it is “0”, a chord start tone when it is “1”, and an intermediate chord that means a chord component other than the chord start tone and chord end tone when it is “2”. , “3” represents a chord end sound. The beam pattern start point cRenkouS represents the start point of the selected beam pattern (described later). The beam pattern end point RenkouE represents the end point of the selected beam pattern pattern. The flag cTie represents whether or not to assign a tie symbol. The stage crossing flag DanCross is a flag indicating the presence or absence of stage crossing.

  In FIG. 1, a sound source 14 is configured by a well-known waveform memory reading method, and reproduces music data read by the CPU 11 from the music data area of the RAM 13 in synchronization with a specified tempo and outputs a musical tone signal. The sound system 15 D / A converts the musical tone signal output from the sound source 14 and then amplifies it to generate sound from the speaker SP. The display unit 16 displays a musical score according to a display control signal supplied from the CPU 11 and displays an operation state of the apparatus. The interface (I / F) unit 17 includes a MIDI interface that exchanges music data in the MIDI format with an external MIDI device under the control of the CPU 11. Although not shown in FIG. 1, when a keyboard device is connected as an external MIDI device to the MIDI interface of the interface (I / F) unit 17, it occurs corresponding to a key release operation of the keyboard device. The song data is stored in the song data area of the RAM 13 via the MIDI interface.

B. Operation Next, the operation of the embodiment having the above-described configuration will be described with reference to FIGS. In the following, first, the operation of the main routine will be described as the overall operation, and then each operation of the score information generation processing and score display processing called from the main routine, and individual information generation processing constituting the score information generation processing, Each operation of the chord processing, the beam group processing, the beam processing, and the step cross beam processing will be described.

(1) Operation of main routine In response to turning on the power of the apparatus, the CPU 11 executes the main routine shown in FIG. 4 and proceeds to step SA1 to reset various registers / flags provided in the work area of the RAM 13. Or perform initialization to set the initial value. Thereafter, the process proceeds to step SA2 to wait for a key operation input by the user. In steps SA3 to SA5, it is determined whether or not there is a key operation input instructing execution of “song selection”, “setting”, and “playback” while waiting for a key operation input.

  When a key operation input for instructing “song selection” is selected, that is, when any of a plurality of song data stored in the song data area of the RAM 13 is selected, the determination result in step SA3 becomes “YES”, via step SA6. After the score information generation process (described later) is executed, a score display process (described later) is executed via step SA9. Then, the process returns to the above-described step SA2 to return to the key operation input waiting state.

  When the key operation input for instructing “setting” is performed, the determination result in step SA4 is “YES”, and the setting process is executed via step SA7. In the setting process, bar information for displaying the music data selected as a musical score is set. The bar information is information that specifies, for example, a clef, a time signature, and a key, and also specifies each bar position and each column position of music data selected for the music. After such setting processing is executed, musical score display processing (described later) is executed via step SA9, and then the processing returns to step SA2 described above to return to a key operation input waiting state.

  When a key operation input for instructing “play” is performed, the determination result in step SA5 is “YES”, and the process proceeds to step SA8. In step SA8, a reproduction process for reproducing the music data selected in step SA3 is executed. Thereafter, a score display process (described later) is executed through step SA9, and then the process returns to step SA2 to return to the key operation input waiting state.

(2) Operation of Score Information Generation Processing Next, the operation of score information generation processing will be described with reference to FIG. When this process is executed via step SA6 (see FIG. 4) of the main routine described above, the CPU 11 advances the process to step SB1, and selects the piece of music information, that is, performance note data [0 for each performance track]. ] To [N] are subjected to known quantization (time-axis quantization). Quantization corrects the deviation of the sounding start time ITime of the performance note data [0] to [N]. In step SB2, the track pointer Trptr for designating the performance track is reset to zero.

  Subsequently, in steps SB3 to SB7, the track pointer Trptr is incremented until all performance tracks are designated, and the performance note data of the performance track designated by the incremented track pointer Trptr is “individually”. Information generation processing (step SB4) "," chord processing (step SB5) ", and" digit group processing (step SB6) "are performed. When all the performance tracks have been processed and the value of the track pointer Trptr advanced in step SB7 becomes end, the determination result in step SB3 is “YES”, and the flow advances to step SB8.

  In step SB8, the track pointer Trptr for designating the performance track is reset to zero. Next, in steps SB9 to SB11, the track pointer Trptr is incremented until all the performance tracks are designated, and the performance note data of the performance track designated by the incremented track pointer Trptr is “crossed”. The consecutive beam processing (step SB10) "is performed. Then, the “stage cross-over beam processing (step SB10)” is performed for all the performance tracks, and when the value of the track pointer Trptr advanced in step SB11 becomes end, the determination result in step SB9 becomes “YES”. This process is completed.

(3) Operation of Individual Information Generation Process Next, the operation of the individual information generation process will be described with reference to FIG. When this process is executed through step SB4 (see FIG. 5) of the musical score information generation process described above, the CPU 11 advances the process to step SC1 shown in FIG. 6 to perform performance note data [0] to [N]. Is reset to zero. Subsequently, in step SC2, it is determined whether or not the performance note data [nptr] specified by the note pointer nptr has reached the song end end. If the song end end has not been reached, the determination result is “NO”, and the flow proceeds to step SC3.

  In step SC3, the time obtained by adding the tone length lGate to the sounding start time ITime in the performance note data [nptr] currently designated by the note pointer nptr and the sounding start time ITime in the next performance note data [nptr + 1]. Whether a rest is necessary is determined from the time difference between If a rest is necessary, the determination result is “YES”, the process proceeds to step SC4, a rest corresponding to the time difference obtained in step SC3 is determined, and in step SC5, a bar for displaying the determined rest is displayed. After the display position is determined, the process proceeds to step SC6.

  On the other hand, if a rest is not necessary, the determination result in step SC3 is “NO”, and the flow proceeds to step SC6. In step SC6, a note type cNoteType (note type) corresponding to the tone length lGate in the performance note data [nptr] currently designated by the note pointer nptr is determined. In step SC7, the display position in the measure for displaying the determined note type cNoteType (note type) is determined. In step SC8, other supplementary information is set, such as connecting the next note with a tie. Next, in step SC9, after the note pointer nptr is incremented, the process returns to step SC2. Thereafter, steps SC2 to SC9 are repeated until the note pointer nptr reaches the song end end. When the note pointer nptr reaches the song end end, the determination result at step SC2 is “YES”, and this process ends.

(4) Operation of Chord Processing Next, the operation of the chord processing will be described with reference to FIG. When this process is executed through step SB5 (see FIG. 5) of the musical score information generation process described above, the CPU 11 advances the process to step SD1 shown in FIG. 7 to perform performance note data [0] to [N]. Is reset to zero. Subsequently, in step SD2, “0” is set to a flag InChord indicating the presence / absence of chord detection to indicate an undetected state. Next, in step SD3, it is determined whether or not the performance note data [nptr] specified by the note pointer nptr has reached the song end end. If the song end end has not been reached, the determination result is “NO”, and the process proceeds to step SD4.

  In step SD4, whether or not the sounding start time ITime in the performance note data [nptr] currently specified by the note pointer nptr is the same as the sounding start time ITime in the next performance note data [nptr + 1]. Judging. In the following, description of the operation will be made separately for the case where the next sound generation time is the same and the case where it is not.

<When the next sound is sounding>
If it is the same as the sounding time of the next sound, the determination result in step SD4 is “YES”, and the flow proceeds to step SD5. In step SD5, it is determined whether the above-described flag InChord is “0”, that is, whether or not a chord is not detected. If the chord is not detected, the determination result is “YES”, the process proceeds to step SD7, and the chord in the note data [nptr] derived corresponding to the performance note data [nptr] specified by the note pointer nptr The value “1” representing the chord start sound is stored in cChord. Next, in step SD8, “1” is set to the flag InChord with the detection of the chord. Then, the process proceeds to step SD9, the note pointer nptr is incremented and stepped, and then the process returns to step SD3 described above.

  On the other hand, if the chord has already been detected, the determination result in step SD5 is “NO”, and the process proceeds to step SD6. In step SD6, the value “2” representing the halftone of the chord is stored in the code cChord in the note data [nptr] derived corresponding to the performance note data [nptr] specified by the note pointer nptr. Then, the process proceeds to step SD8, and after setting the flag InChord to “1”, the note pointer nptr is incremented in step SD9, and then the process returns to step SD3 described above.

<If it is not the same time as the next sound>
If it is not the same as the sounding time of the next sound, the determination result in step SD4 is “NO”, and the process proceeds to step SD10. In step SD10, it is determined whether or not the flag InChord is “1”, that is, whether the chord is being detected. If it is in the chord detection state, the determination result is “YES”, the process proceeds to step SD11, and the code cChord in the note data [nptr] derived corresponding to the performance note data [nptr] designated by the note pointer nptr 2 stores the value “3” representing the chord end sound. In step SD13, the flag InChord is reset to zero. In step SD9, the note pointer nptr is incremented and stepped, and then the process returns to step SD3.

  On the other hand, if the chord is not detected, the determination result in step SD10 is “NO”, and the process proceeds to step SD12. In step SD12, a value “0” representing a non-chord is stored in the code cChord in the note data [nptr] derived corresponding to the performance note data [nptr] specified by the note pointer nptr. In step SD13, the flag InChord is reset to zero, and then the note pointer nptr is incremented in step SD9, and then the process returns to step SD3. Thereafter, the processing after step SD3 is repeated until the note pointer nptr reaches the song end end. When the stepped note pointer nptr reaches the song end end, the determination result at step SD3 becomes “YES”. Finish.

(5) Operation of beam pattern group processing Next, the operation of beam pattern group processing will be described with reference to FIGS. When this process is executed through step SB6 (see FIG. 5) of the musical score information generation process described above, the CPU 11 advances the process to step SE1 shown in FIG. 8 to perform performance note data [0] to [N]. Is reset to zero. Subsequently, in step SE2, it is determined whether or not the note pointer nptr has reached the song end end. If the song end end has not been reached, the judgment result is “NO”, and the flow proceeds to step SE3.

  In step SE3, it is determined whether or not the performance note data [nptr] designated by the note pointer nptr satisfies the first note condition for the first note of the consecutive digits. The leading sound condition here is a note length with no flag (tail), that is, a quarter note length or more, and a sound to be determined this time is an eighth note length with a flag or less. Refers to that. If such a head tone condition is not satisfied, the determination result is “NO”, the process proceeds to step SE11, the step is incremented by the note pointer nptr, and then the above-described step SE2 is performed in order to search for the beam start sound. Return processing.

  Then, it is assumed that the performance note data [nptr] specified by the stepped note pointer nptr does not reach the end of music end and satisfies the condition of being the first note of the consecutive digits. Then, the determination results of the above steps SE2 and SE3 are both “YES”, the process proceeds to step SE4, and the performance note data [nptr] is stored in the continuous-digit buffer.

  Next, in step SE5, the note pointer nptr is incremented, and in the subsequent step SE6, it is determined whether or not the performance note data [nptr] specified by the note pointer nptr satisfies the continuous tone condition. The continuous tone condition indicates that both the immediately preceding and immediately following sounds and the current determination target sound have a note length with a flag. If the performance note data [nptr] does not satisfy the continuous tone condition, the determination result in step SE7 is “NO”, the process proceeds to step SE11, the note pointer nptr is incremented, and the process proceeds to step SE2. To return.

  On the other hand, if the beam digit condition is satisfied, the determination result in step SE6 is “YES”, the process proceeds to step SE7, and the performance note data [nptr] is stored in the beam buffer. Next, in step SE8, it is determined whether or not the performance note data [nptr] stored in the consecutive digit buffer satisfies the consecutive digit termination condition. The beam end condition indicates that both the immediately preceding sound and the sound to be determined this time have a note length with a flag, and the immediately following sound has a note length without a flag. If the beam end condition is not satisfied, the determination result is “NO”, and the process returns to step SE5.

  Thereafter, steps SE5 to SE8 are repeated until a sound that ends the beam is searched, a sound that is continued after the head sound of the beam is searched, and the corresponding sound (note data for performance) is connected. Save to the digit buffer. Then, when the sound at the end of the beam is searched, the determination result in step SE8 is “YES”, and the flow proceeds to step SE9. In step SE9, a beam pattern suitable for the end sound is selected from the first sound of the beam stored in the beam buffer among the various beam patterns (girder shape) set in advance. In step SE10, a value representing the selected beam pattern is set in the beam pattern start point cRenkouS (see FIG. 3) in the note data corresponding to the first note of the beam stored in the beam buffer. Then, a value representing the selected beam pattern is set in the beam pattern end point cRenkouE (see FIG. 3) in the note data corresponding to the rear end sound of the beam stored in the beam buffer.

Thereafter, the process proceeds to step SE12 shown in FIG. 9, and the pitch difference obtained by subtracting the digit buffer top pitch from the digit buffer last pitch is stored in the register iSlope as a slope. Hereinafter, the register iSlope is referred to as a slope iSlope.
Next, in step SE13, a register iSlopeAdj (hereinafter referred to as a beam slope correction value iSlopeAdj) for temporarily storing the beam slope correction value is reset to zero. Subsequently, in step SE14, the pointer bptr is reset to zero.

  In step SE15, it is determined whether or not the consecutive-digit buffer [bptr + 1] designated by the pointer bptr is empty. If it is not empty, the determination result is “NO”, and the flow proceeds to step SE16. In step SE16, a pitch difference is obtained by subtracting the pitch of the previous performance note data stored in the beam buffer [bptr] from the pitch of the performance note data stored in the beam buffer [bptr + 1]. It is determined whether or not it is greater than “0”. If the pitch difference is larger than “0”, the determination result is “YES”, and the process proceeds to step SE17, and after incrementing the beam slope correction value iSlopeAdj, the process proceeds to step SE20 and the pointer bptr is incremented. The process returns to step SE15.

  On the other hand, if the pitch difference calculated in step SE16 is smaller than “0”, the determination result is “NO”, and the flow proceeds to step SE18. In step SE18, a pitch difference obtained by subtracting the pitch of the previous performance note data stored in the beam buffer [bptr + 1] from the pitch of the performance note data stored in the beam buffer [bptr + 1] is obtained. It is determined whether or not it is smaller than “0”. If the pitch difference is smaller than “0”, the determination result is “YES”, the process proceeds to step SE19, the beam slope correction value iSlopeAdj is decremented, and then the process proceeds to step SE20.

Note that the pitch of the performance note data stored in the digit buffer [bptr + 1] and the pitch of the previous performance note data stored in the digit buffer [bptr + 1] have the same pitch. The determination results of the above steps SE16 and SE18 are “NO”, and the process proceeds to step SE20, the pointer bptr is incremented, and the process returns to step SE15.

  When the consecutive-digit buffer [bptr + 1] designated by the incremented pointer bptr becomes empty, the determination result at step SE15 is “NO”, and the process proceeds to step SE21. In step SE21, the gradient iSlope calculated in step SE12 is multiplied by the consecutive beam gradient correction value iSlopeAdj, and it is determined whether or not the multiplied value is “0” or less. If the multiplication value is not “0” or less, that is, if iSlope and iSlopeAdj are inclined in the same direction, the determination result here is “NO”, and the process proceeds to Step SE11 shown in FIG.

  On the other hand, if the multiplication value is “0” or less, that is, if the inclination iSlope and the consecutive digit inclination correction value iSlopeAdj are inclined in opposite directions, the determination result is “YES”, and the flow proceeds to step SE22. In step SE22, the value obtained by multiplying the beam slope correction value iSlopeAdj by the weight coefficient A set by the user is added to the slope iSlope calculated in step SE12, and the corrected slope iSlope is set as the “beam slope”. Finish the process. As a result, it is possible to obtain a beam with a natural slope by simple processing. The “digit gradient” calculated in this way is registered in the note data corresponding to these sounds as attributes of the beam start sound and beam end sound.

(6) Operation of Score Display Processing Next, the operation of the score display processing will be described with reference to FIGS. When the score display process is executed through step SA9 (see FIG. 4) of the main routine described above, the CPU 11 proceeds to step SG1 shown in FIG. 10 and draws a background image (stave score) on the display surface of the display unit 16. To do. Subsequently, in step SG2, a bar counter for counting the number of bars is initialized. Next, in step SG3, it is determined whether or not the value of the measure counter has reached the end end, that is, whether or not the musical score display has been completed for all the measures forming the song. If the score display has not been completed for all the bars, the determination result is “NO”, and the process proceeds to step SG4. In step SG4, for example, a clef, key, bar line, etc. are drawn on the staff based on the bar information specified by the bar counter value on the staff.

  In step SG5, the note pointer nptr for designating note data is reset to zero. Subsequently, in step SG6, it is determined whether or not the note pointer nptr has finished specifying a sound for one measure. If the sound for one measure has not been specified, the determination result is “NO”, the process proceeds to step SG7, and the display position of the note data currently specified by the note pointer nptr is calculated. Next, in step SG8, the note data currently designated by the note pointer nptr is drawn at the display position calculated in step SG7. Thereafter, the process proceeds to step SG9, the note pointer nptr is incremented, and the process returns to step SG6.

  In this way, when the display positions of the sounds forming the bars designated by the value of the bar counter are sequentially calculated, and when the notes are drawn at the display positions, the determination result at step SG6 is “YES”, and the step After proceeding to SG10 and incrementing the bar counter, the process returns to step SG3. Thereafter, the display position of the note is calculated for each measure, the notes corresponding to the calculated display position are drawn, and when the notes are drawn for all the measures, the determination result in step SG3 is “YES”. This processing is finished.

  It should be noted that when a note is drawn, an attribute included in the corresponding note data is referred to. The attributes included in the note data include the above-described note type cNoteType, the beam pattern pattern start point cRenkouS, and the beam pattern pattern end point RenkuE, as well as the beam pattern slope calculated in the beam group processing described above (see FIGS. 8 to 9). Including.

  FIG. 11 is a diagram illustrating an example of a score displayed on the screen by the score display process. FIG. 11A shows an example of a musical score in the case where the correction of the beam gradient by the beam group processing described above is not performed, that is, the weighting factor A = 0. In this notation, the slope of the beam is not corrected, and the slope of the beam is determined only by the pitch difference between the beam start sound and the beam end sound as in the conventional case. It becomes horizontal and gives the impression that the pitch between them has not changed.

On the other hand, FIG. 5B shows a musical score example in which the correction of the beam gradient by the beam group processing described above is performed with the weighting coefficient A = 3. In this musical score example, the above-mentioned latter half of the upper bar is lowered later, and the pitch change can be grasped intuitively. Further, FIG. 6C shows a musical score example in which the correction of the beam gradient by the beam group processing described above is performed with the weighting coefficient A = 6. In this score example, the first girder in the upper half of the upper bar changes to a forward drop. This is a variable that indicates whether the number of times the pitch changes in the direction in which the pitch rises or the number of changes in the direction in which the pitch changes is dominant, and the pitch difference between the start tone and end tone It is the result that reflected more strongly than. When there is an element that contradicts the pitch relationship of the entrained sound, such as the first half of the upper bar, which one should be reflected more strongly depends on the user's preference. It can be solved by leaving it to the user.

(7) Operation of Step Cross Girder Processing Next, the operation of step cross girder processing will be described with reference to FIG. As shown in FIG. 12, the crossover consecutive digit processing executed through step SB10 (see FIG. 5) of the musical score information generation processing described above and the cross determination processing executed through step SH1 are shown in FIG. And the cross-girder processing executed through the. Hereinafter, each operation | movement of a cross determination process and a cross continuous girder process is described.

(8) Operation of Crossover Determination Process When the crossover determination process is executed via step SH1 in FIG. 12, the CPU 11 advances the process to step SJ1 shown in FIG. 13 to perform performance note data [0] to [N]. Is reset to zero. Subsequently, in step SJ2, it is determined whether or not the performance note data [nptr] designated by the note pointer nptr has reached the song end end. If the song end end has not been reached, the determination result is “NO”, and the process proceeds to step SJ3. In step SJ3, it is determined whether or not the target sound (performance note data [nptr] specified by the note pointer nptr) is a right-hand track.

  If it is a right-hand track, the determination result is “YES”, and the process proceeds to step SJ4 to determine whether or not the pitch of the target sound is lower than the predetermined value 1. If it is not lower than the predetermined value 1, the determination result is “NO”, and after the note pointer nptr is incremented in step SJ9, the process is returned to step SJ2.

On the other hand, when the pitch of the target sound is lower than the predetermined value 1, the determination result in step SJ4 is “YES”, the process proceeds to step SJ5, and the note display position in the lower stage is calculated. Thereafter, the process proceeds to step SJ8 to indicate that the stage crossover flag DanCross of the note data (corresponding sound) corresponding to the target sound is set to “1” to indicate that the crossover is performed, and then in step SJ9, the note pointer nptr is incremented. Then, the process returns to step SJ2.

  On the other hand, if the target sound is the left-hand track, the determination result in step SJ3 described above is “NO”, and the process proceeds to step SJ6. In step SJ6, it is determined whether the pitch of the target sound is higher than a predetermined value 2. If it is not higher than the predetermined value 2, the determination result is “NO”. After the note pointer nptr is incremented in step SJ9, the process returns to step SJ2.

On the other hand, when the pitch of the target sound is higher than the predetermined value 2, the determination result in step SJ6 is “YES”, the process proceeds to step SJ7, and the note display position in the upper stage is calculated. Thereafter, the process proceeds to step SJ8 to indicate that the stage crossover flag DanCross of the note data (corresponding sound) corresponding to the target sound is set to “1” to indicate that the crossover is performed, and then in step SJ9, the note pointer nptr is incremented. Then, the process returns to step SJ2.

Thereafter, while the note pointer nptr is incremented until the note pointer nptr reaches the end of music end, the pitch Pitch in the performance note data [nptr] designated by the incremented note pointer nptr falls within a predetermined range. Whether or not the crossing is exceeded is determined, and the sound of the crossing is set to “1” in the crossing flag DanCross of the corresponding note data. When the note pointer nptr reaches the song end end, the determination result in step SJ2 is “YES”, and the process is finished.

(9) Operation of cross-girder processing When cross-girder processing is executed via step SH2 of FIG. 12, the CPU 11 proceeds to step SK1 shown in FIG. 14 to initialize the bar pointer. Next, in step SH2, it is determined whether or not the measure pointer has reached the end end. If the measure pointer does not reach the end end, the determination result is “NO”, and the process proceeds to step SK3 to determine whether the track is a right-hand track. If it is a right-hand truck, the determination result is “YES”, and the flow proceeds to step SK4. In step SK4, it is determined whether or not there is a crossover in the measure specified by the measure pointer. The presence / absence of crossover is determined by the value of the crossover flag included in the bar information. If the crossover is not performed, the determination result is “NO”, the process proceeds to step SK8, the bar pointer is incremented, and the process returns to step SK2.

  On the other hand, if there is a crossover at the measure specified by the measure pointer, the determination result at step SK4 is “YES”, and the process proceeds to step SK5. In step SK5, the direction of all the note bars corresponding to the note data included in the bar where the step crossover is performed and the step crossing flag DanCross is “1” is changed upward. Thereafter, the process proceeds to step SK8, where the bar pointer is incremented and the process returns to step SK2.

On the other hand, if it is a left-hand truck, the determination result in step SK3 is “NO”, and the flow proceeds to step SK6. In step SK6, it is determined whether or not there is a crossover in the bar designated by the bar pointer. The presence / absence of crossover is determined by the value of the crossover flag included in the bar information. If there is no crossover, the determination result is “NO”, and the process proceeds to step SK8, where the bar pointer is incremented and the process returns to step SK2. However, if there is a crossover, the determination result in step SK6 is “YES”. The process proceeds to step SK7. In step SK7, the direction of the note bars corresponding to the note data that is included in the bar where the column crosses and the column crossing flag DanCross is “1” is all changed downward. Thereafter, the process proceeds to step SK8, where the bar pointer is incremented and the process returns to step SK2.

Thereafter, the above steps SK2 to SK8 are repeated until the measure pointer reaches the end end. If there is a step crossing in the measure specified by the measure pointer, the note corresponding to the note data whose step crossing flag DanCross is “1”. Change the direction of the bar to the opposite direction.

  Thus, for example, in the musical score example shown in FIG. 15 (a), when the first and second sounds of the first bar of the upper stage become the target sound of the crossover, as shown in FIG. 15 (b), the upper first These note positions are shifted to the lower side corresponding to the pitches of the first and second notes of the measure, while the direction of the corresponding note on the lower side is changed downward. As a result, it becomes a natural and easy-to-read score display with multi-column crossing.

  Next, with reference to FIG. 16, a description will be given of the slope of the beam when a chord is included. If the player wants to be aware of the movement of the route, as shown in FIG. 16 (a), the form follows the chord start sound, and if he wants to be aware of the change in the upper voice part, As shown in b), it is effective to follow the chord end sound. Furthermore, when it is desired to be aware of the change of the overall sound range, the beam is an average beam of the gradient of the beam shown in FIG. 16 (a) and the beam gradient shown in FIG. 16 (b). Is desirable.

  In the present embodiment, the score data is generated from scratch based on the performance data. However, the previously generated score data is read and the above-mentioned beam group processing and step cross beam processing are performed. You can also create a score that is easier to see.

It is a block diagram which shows the structure of one Embodiment by this invention. It is a figure which shows the structure of music data. It is a figure which shows the structure of note data. It is a flowchart which shows operation | movement of a main routine. It is a flowchart which shows the operation | movement of a score information generation process. It is a flowchart which shows the operation | movement of an individual information generation process. It is a flowchart which shows the operation | movement of a chord process. It is a flowchart which shows the operation | movement of a consecutive beam group process. It is a flowchart which shows the operation | movement of a consecutive beam group process. It is a flowchart which shows the operation | movement of a score display process. It is a figure which shows an example of the score displayed on a screen by a score display process. It is a flowchart which shows the operation | movement of a column crossing girder process. It is a flowchart which shows the operation | movement of a cross determination process. It is a flowchart which shows the operation | movement of a crossing girder process. It is a figure which shows an example of a step crossing girder. It is a figure which shows the example of inclination of the continuous beam in case a chord is contained.

Explanation of symbols

10 Operation unit 11 CPU
12 ROM
13 RAM
14 sound source 15 sound system 16 display unit 17 interface unit

Claims (4)

Song data storage means for storing song data representing each sound constituting the song;
A beam detection unit for detecting a string of beams from the song data stored in the song data storage unit;
Correction value generating means for generating a slope correction value that is increased or decreased according to the sign of the pitch difference between adjacent sounds in the continuous string detected by the beam detection means;
The slope according to the pitch difference between the leading sound and the trailing edge sound of the continuous string detected by the beam detecting means is corrected by the inclination correction value generated by the correction value generating means, and the beams are corrected. A musical score display device comprising: a girder slope determining means for determining a slope. 2. The musical score display apparatus according to claim 1, wherein the correction value generation means includes adjustment means for adjusting the inclination correction value according to a weight coefficient set by a user. A beam detection process for detecting a string of beams from the song data representing each sound constituting the song;
A correction value generation process for generating a slope correction value that is increased or decreased according to the sign of the pitch difference between adjacent sounds in the continuous string detected by the beam detection process;
The slope according to the pitch difference between the leading sound and the trailing edge sound of the continuous string detected by the beam detection process is corrected by the inclination correction value generated by the correction value generation process. A musical score display program which causes a computer to execute a beam inclination determination process for determining a digit inclination. 4. The score display program according to claim 3, wherein the correction value generation process includes an adjustment process for adjusting the inclination correction value according to a weight coefficient set by a user.

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