JP2010197600A - Device and program for melody modification - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily perform processing for creating a new musical piece which is full of variety so as to be different from a melody before editing, while making the use of a feature of the melody before editing. <P>SOLUTION: A device for melody modification includes: an inversion means for performing vertical inversion of notes and rests in a range selected by a user, with setting a note indicated by the user as a center; a selection means for selecting whether or not, half tone progress processing is performed on the inverted notes and rests; and a processing means for performing half tone progress processing on the inverted notes and rests. When the half tone progress processing is selected by the user, half tone progress processing of the notes and rests inverted by the inversion means is performed. Thereby, vertical inversion processing is performed without becoming unnatural, even on a musical piece whose melody becomes unnatural by mechanical inversion processing. Moreover, even a beginner without sufficient editing knowledge can easily create a new musical piece which is full of variety so as to be different from the melody before editing, while making the use of a feature of the melody before editing. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a melody transformation device and a melody transformation program, and in particular, when performing a melody transformation such as a reversal, if the musical score before the transformation includes a semitone progression, the same portion is also a semitone in the musical score after the transformation. The present invention relates to a technique suitable for use in processing so as to progress.

  An automatic music composition device has been proposed that makes it possible to generate a new musical composition that is rich in changes that are different from the melody while taking advantage of the characteristics of the melody before editing (for example, see Patent Document 1). The automatic composition apparatus described in Patent Document 1 makes it possible to compose a new composition that is different from the melody while taking advantage of the characteristics of the melody before editing.

  In the automatic musical composition apparatus proposed in Patent Document 1, performance information supply means for supplying performance information composed of a plurality of note data, and the performance information is divided into predetermined sections, and predetermined for each section. Parameter setting means for setting the data change parameter, data change means for changing at least one of the pitch and the sound generation timing constituting the note data for each predetermined section according to the data change parameter, and the data change means Music generation means for generating a new music according to the played performance information.

  The parameter setting means divides the performance information into predetermined sections, for example, every section or every two bars, and sets data change parameters for each section. The data change parameter includes, for example, a parameter that reverses the rhythm within a section, a parameter that changes a predetermined rhythm within the segment to another rhythm, a parameter that reverses the pitch within a section, and a parameter that is predetermined within a section. There is one that reverses the pitch based on the pitch. The data changing means changes the pitch, tone generation timing, etc. constituting the note data for each predetermined section according to such a data change parameter. The music piece generation means generates a new music piece based on the changed performance information.

  With the configuration as described above, the automatic musical composition device described in Patent Document 1 can newly generate a tune rich in changes that is different from the melody while making use of the characteristics of the melody before editing.

  A reversal process is known as one of the methods for generating a new musical composition rich in changes that is different from the melody while taking advantage of the characteristics of the melody before editing. The reversal process is a process that inverts the melody up and down as reflected by the upper and lower mirrors around a certain reference sound. There are two types of reversal: one that is reversed graphically (in degrees) and the other that is reversed at intervals of semitones. In the case of a semitone unit, since the pitch of the sound is determined, the temporary symbol is automatically determined. However, in the case of reversing in frequency, there are a temporary symbol that is left as it is and a temporary symbol that is also inverted.

JP-A-9-62263

  However, in the case of the automatic composition apparatus described in Patent Document 1, when the melody deformation as described above is performed, the accidental symbols are reversed (flat is sharp, sharp is flat) or left as it is (flat) Either flat or sharp).

  For this reason, in a musical score where a certain range of melody progresses in a chromatic scale, it is often necessary to generate a new piece of music that is different from the melody while taking advantage of the characteristics of the melody before editing. It was necessary to take the hassle of.

  In view of the above-described problems, the present invention makes it possible to easily perform a process of newly generating a song having a variety of changes different from the melody while making use of the characteristics of the melody before editing. It is aimed.

A melody transformation device according to the present invention is a melody transformation device that performs a process of inverting a melody up and down around a certain reference sound. A note / rest in a range selected by a user is converted to a sound designated by the user. An inversion means that vertically inverts around the center, a semitone progression processing selection means for selecting whether or not to process the semitone progression on the notes and rests inverted by the inversion means, and the notes and rests inverted by the inversion means A semitone progression processing means for performing a semitone progression process on the note, and when the user has selected to perform the semitone progression process by the semitone progression process selection means, the inversion is performed by the semitone progression processing means. A semitone progression process is performed on the notes / rests reversed by the means.
Another feature of the melody deformation apparatus according to the present invention is a melody deformation apparatus having a function of performing melody deformation of a musical score to be edited displayed on a display screen of a display device, the musical score to be edited. Is displayed in the first display area, an operation screen for transforming the melody of the musical score to be edited is displayed in the second display area, and the edited score is displayed in the third display area. Display control means for controlling, user operation means for setting the score information displayed on the operation screen to a predetermined value, and transformation of the melody of the musical score to be edited according to the score information set by the user operation means Melody deformation means, and semitone progression processing selection means for selecting whether or not to perform a semitone progression process on the score whose melody has been transformed by the melody deformation means, the melody deformation means, Second display section When the displayed operation screen is operated by the user operation means, the melody of the musical score to be edited displayed on the first display unit is transformed according to the operation, and the display control means The musical score after being deformed by the melody deforming means is displayed in the third display area.

The melody transformation program of the present invention is a melody transformation program that causes a computer to execute a process of inverting the melody up and down around a certain reference sound, and the user designates notes and rests in a range selected by the user. An inversion process that inverts up and down around the sound, a semitone progression process selection process that selects whether or not the notes / rests inverted in the inversion process are subjected to a semitone progression process, and an inversion in the inversion process. A semitone progression processing step for performing semitone progression processing on notes / rests, and in the semitone progression processing selection step, when the user selects to perform the semitone progression processing, in the semitone progression processing step The computer is caused to execute a semitone progression process on the notes / rests inverted in the inversion step.
Another feature of the melody transformation program of the present invention is a melody transformation program that causes a computer to execute a melody transformation process of a musical score to be edited displayed on a display screen of a display device. The display device displays a score in a first display area, displays an operation screen for modifying the melody of the score to be edited in the second display area, and displays the edited score in a third display area. A display control step for controlling the score, a user operation step for setting the score information displayed on the operation screen to a predetermined value, and a melody of the score to be edited according to the score information set in the user operation step. A melody transformation step that transforms, and a semitone progression processing selection step for selecting whether or not to perform a semitone progression processing on the musical score whose melody has been transformed in the melody transformation step. In the process, when the operation screen displayed on the second display unit is operated in the user operation step, the melody of the musical score to be edited displayed on the first display unit is changed according to the operation. In a modification, the display control step controls the computer to display the musical score after being transformed in the melody transformation step in the third display area.

  According to the present invention, when performing a melody deformation such as a reversal, in a musical score that progresses in a chromatic scale, by keeping the chromatic scale even after the melody deformation, the inconvenience of repeatedly hitting the same sound. Can be prevented. In addition, even a beginner with poor editing knowledge can easily generate a new musical piece with a natural melody using the reversal process.

It is a figure which shows embodiment of this invention and shows the example of whole melodic deformation apparatus structure. It is a block diagram which shows embodiment of this invention and shows an example of an internal structure of a melody deformation | transformation apparatus. It is a figure which shows the embodiment of this invention, and is a figure which shows the example of a display displayed on the display screen of a display when performing a deformation | transformation of a melody, and is a figure which shows the example of a display when the function to perform semitone progress maintenance is off. It is a figure which shows the embodiment of this invention, and is a figure which shows the example of a display displayed on the display screen of a display when performing a deformation | transformation of a melody, and is a figure which shows the example of a display when the function to perform semitone progress maintenance is ON. It is a flowchart which shows embodiment of this invention and demonstrates an example of the process sequence of a dialog box update. It is a flowchart which shows embodiment of this invention and demonstrates the detail of a score update process. It is a flowchart which shows embodiment of this invention and demonstrates the procedure of a progress process. It is a flowchart which shows embodiment of this invention and demonstrates the detail of a reversal process. It is a flowchart which shows embodiment of this invention and demonstrates the detail of a transfer process. It is a flowchart which shows embodiment of this invention and demonstrates the detail of a shift process.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a diagram illustrating an example of the overall configuration of a melody deformation device 100 according to the present embodiment. The melody deformation device 100 of the present embodiment can display, input, edit, and play a musical score, and has a personal computer 50 for installing a music symbol melody deformation program and using it as a melody deformation device. .

  As shown in FIG. 1, the melody deforming apparatus 100 of this embodiment includes a display 15, a mouse 22, a keyboard 23, and the like in addition to a personal computer 50. The mouse 22 is used as an option designation means for designating an option for performing melody deformation in an operation area in a “user interface” to be described later.

  FIG. 2 is a block diagram illustrating an example of an internal configuration of the melody deformation device 100 according to the embodiment of this invention. As shown in FIG. 2, the melody transformation device 100 of the present embodiment is connected to a CPU 11, a ROM 12, a RAM 13, an image control unit 14, an I / O interface 16, a hard disk drive 17, and the like via a system bus 10. Control signals and data are input / output to / from each device via the system bus 10.

  The CPU 11 performs overall control of the melody deforming device 100 based on a program stored in the ROM 12 or the RAM 13. Further, a timer circuit for interrupting the CPU 11 at a predetermined cycle set in advance is incorporated. The RAM 13 is used as an image data buffer, a work area, etc. in addition to a program area.

  The CD-ROM drive 20 connected via the I / O interface 16 reads a program, image data, and the like from a CD-ROM 21 in which a music symbol input program is stored. The program, image data, and the like are stored in a hard disk drive 17 to be described later, and the main program is stored in the RAM 13 and executed by the CPU 11.

  As described above, the hard disk drive 17 stores a music symbol input program, image data, and the like. The display 15 connected via the image control unit 14 displays video information output from the image control unit 14 on the display screen 15 a based on the control of the CPU 11. Information input from the mouse 22 is taken into the CPU 11 via the I / O interface 16. The same applies to information input from the keyboard 23. The printer 24 prints print information output from the I / O interface 16 based on the control of the CPU 11.

  3 and 4 are diagrams showing display examples displayed on the display screen 15a of the display 15 when the melody is deformed. FIG. 3 is a display example when the “hold semitone progression” function is off. FIG. 4 shows a display example when the “hold semitone progression” function is on.

  3 and 4, three areas are displayed on the display screen 15a. The first display area 310 displays “original score”. The second display area 320 displays a “user interface” screen for performing a user operation for transforming the melody to the “original score” displayed in the first display area 310. Furthermore, in the third display area 330, “edited score” edited by operating the “user interface” screen displayed in the second display area 320 is displayed.

  In the present embodiment, a “trial listening button” is provided so that the musical score displayed in the first display area 310 can be auditioned. The third display area 330 is provided with a “trial listening button” so that the edited score can be auditioned. In addition, an “OK button” for understanding the “music score after editing”, a “cancel button” for discarding the “music score after editing”, and a “help button” for assisting the operation method are displayed in a third manner. It is described in region 330.

  In the second display area 320, “Progress” 321, “Reverse reference sound” 322, “Reverse method” are items to be performed to perform melody transformation processing on the “original score”. H.323 is displayed.

  In this embodiment, radio buttons of “forward”, “reverse”, “retrograde”, and “retrograde” are displayed corresponding to “progress” 321, and one of them is selected. Has been made. In the example of FIG. 3, the “Reverse” radio button is pressed.

  In addition, radio buttons of “first sound”, “last sound”, “main sound”, and “other” are displayed in correspondence with “reverse reference sound” 322. In addition, a pull-down menu for allowing the user to select an arbitrary note as a “reverse reference sound” when another radio button is selected is displayed. In the example of FIG. 3, the radio button of “first sound” is pressed, and “69 (A3)”, that is, “ra sound” is selected as the “reverse reference sound” 322 in the pull-down menu.

  A “frequency” radio button and a “semitone” radio button are displayed corresponding to the “reverse method” 323. In the example of FIG. 3, the “frequency” radio button is pressed. In addition, a check box for selecting “Keep the progress of semitones”, a check box for selecting “Perform sound conduction processing”, a check box for selecting “Do not use double sharp or double flat”, and the like are displayed. In order to select the value, a “frequency” pull-down menu, a “delay” pull-down menu, a “shift amount” selection menu, and the like are displayed.

  With the setting as described above, in the example of FIG. 3, the “ra sound” of the original score is used as a reference sound and the reversal is performed. Since the check box for selecting “keep the progression of semitones” is not checked, as shown in the third display area 330, in the edited score, the temporary notes attached to the notes before editing The symbols are simply deformed, flat for sharp and sharp for flat.

  On the other hand, in the example shown in FIG. 4, since the check box for selecting “keep semitone progression” is checked, a temporary symbol is added before editing as shown in the third display area 330. A sharp symbol is added to the third note that was not given. In addition, a natural symbol is attached to the fourth note, which was assigned a sharp temporary symbol before editing. Similarly, the sixth and eighth notes are marked with a sharp symbol, and the ninth note is marked with a flat symbol, so that the progression of semitones is maintained in the edited score.

Next, the processing procedure of the melody deforming device of this embodiment will be described with reference to the flowcharts of FIGS.
FIG. 5 is a flowchart for explaining an example of the dialog box update process.
As shown in FIG. 5, when the process is started, in step S51, it is determined whether or not the content of “Progress” 321 has been changed. If the content is changed as a result of this determination, the process proceeds to step S52. If no change is made, the process proceeds to step S53. In step S52, a score update process is performed. Then, when the score update process is completed, the process proceeds to an end process. Details of the score update process performed in step S52 will be described later.

  In step S53, it is determined whether or not the “reflective reference sound” 322 has been changed. If the reference sound is changed as a result of this determination, the process proceeds to step S52. If no change has been made, the process proceeds to step S54.

  In step S54, it is determined whether or not the “reverse method” 323 has been changed. As a result of the determination, if the “reverse method” 323 is changed, the process proceeds to step S52. If no change has been made, the process proceeds to step S55.

  In step S55, it is determined whether or not “hold semitone progression” has been changed. As a result of this determination, if “hold semitone progression” is changed, the process proceeds to step S52. If not changed, the process proceeds to step S56.

  In step S56, it is determined whether or not “perform sound introduction processing” has been changed. As a result of this determination, if “perform sound introduction processing” is changed, the process proceeds to step S52. If no change has been made, the process proceeds to step S57.

  In step S57, it is determined whether or not “do not use double sharp or double flat” has been changed. As a result of the determination, if “do not use double sharp or double flat” is changed, the process proceeds to step S52. If not changed, the process proceeds to step S58.

  In step S58, it is determined whether or not “frequency” has been changed. If the “frequency” is changed as a result of this determination, the process proceeds to step S52. If no change has been made, the process proceeds to step S59.

  In step S59, it is determined whether or not the “shift amount” has been changed. If the “shift amount” is changed as a result of this determination, the process proceeds to step S52. If no change has been made, the process proceeds to step S60.

  In step S60, it is determined whether or not “delay” has been changed. If the “delay” is changed as a result of this determination, the process proceeds to step S52. If no change is made, end processing is performed.

Next, details of the score update process will be described with reference to the flowchart of FIG.
When the process is started, a sound guide pre-process is performed in step S61.

  Next, it progresses to step S62 and a progress process is performed. This progress process will be described later with reference to FIG. Next, it progresses to step S63 and a sound guide process is performed. Next, it progresses to step S64 and a transfer process is performed. This transfer process will be described later with reference to FIG. Next, it progresses to step S65 and a shift process is performed. This shift process will be described later with reference to FIG. Next, delay processing is performed in step S66. Since the delay processing is not directly related to the present invention, detailed description thereof is omitted.

Next, the progress process will be described with reference to the flowchart of FIG.
When the progress process is started, it is determined whether or not it is a reversal in step S71. If the result of this determination is reversal, the process proceeds to step S72 to perform reversal processing.

  On the other hand, if the result of determination in step S71 is that there is no reversal, the process proceeds to step S73, where it is determined whether or not it is retrograde. As a result of the determination, if the progress process is backward, the process proceeds to step S74, and the backward process is performed.

  On the other hand, if the result of determination in step S73 is that the progress process is not retrograde, the process proceeds to step S75, and it is determined whether or not the process is retrograde. If the result of this determination is reversal, the process proceeds to step S76 to perform reversal processing. Then, it progresses to step S77 and performs a retrograde process.

  On the other hand, if the result of determination in step S75 is that the process is not a retrograde process, the process proceeds to an end process. Also, when the processes of step S72, step S74, and step S77 are completed, the process proceeds to the end process.

Next, the reversal process will be described with reference to the flowchart of FIG.
When the reversal process is started, a semitone progression point is stored in step S801. In step S802, the staff position of the reference sound and the note number are calculated.

  Next, in step S803, it is determined whether the reversal method is frequency. If the result of this determination is frequency, the process proceeds to step S804. In step S804, it is determined whether the object of reversal is a note. If the result of this determination is a note, the process proceeds to step S805 to change the position (height) of the note on the staff. Thereafter, the process proceeds to step S806. On the other hand, if the result of determination in step S804 is not a note, the process proceeds directly from step S804 to step S806.

  In step S806, it is determined whether all symbols have been processed. If the result of this determination is that processing has not been performed, processing returns to step S804. If processed, the process advances to step S807 to determine whether or not all measures have been processed. As a result of this determination, if it is not processed, the process returns to step S804, and if it is processed, the process proceeds to step S812.

  On the other hand, if the result of determination in step S803 is not frequency, the process proceeds to step S808. In step S808, it is determined whether it is a note. If the result of this determination is a note, the process proceeds to step S809. In step S809, the note height and the accidental symbol are corrected from the note number. Thereafter, the process proceeds to step S810. If the result of determination in step S808 is not a note, the process proceeds from step S808 to step S810.

  In step S810, it is determined whether all symbols have been processed. If the result of this determination is that processing has not been performed, processing returns to step S808. If processed, the process proceeds to step S811, and it is determined whether or not all measures have been processed. As a result of this determination, if it is not processed, the process returns to step S808, and if it is processed, the process proceeds to step S812.

  In step S812, the direction of the stem is adjusted. Thereafter, in step S813, it is determined whether or not the frequency. If the result of this determination is frequency, the process advances to step S814 to perform processing for inverting the temporary symbol. Thereafter, the process proceeds to step S815. If the result of determination in step S813 is not frequency, the process directly proceeds from step S813 to step S815.

  In step S815, it is determined whether or not to maintain semitone progression. If the result of this determination is not to hold, end processing is performed. If it is held, the process proceeds to step S816. In step S816, the note height and the temporary symbol are corrected so that the semitone progression point held in step S801 becomes a semitone progression. Thereafter, end processing is performed.

Next, the transfer process will be described with reference to the flowchart of FIG.
When the process is started, it is determined in step S91 whether or not the shift frequency is zero. As a result of this determination, if the shift frequency is 0, the process proceeds to end processing. If the result of determination in step S91 is that the transfer frequency is not 0, the process proceeds to step S92.

  In step S92, it is determined whether or not it is a note. If the result of this determination is that it is not a note, the process proceeds to step S94. If the result of determination in step S92 is a note, the process proceeds to step S93.

  In step S93, processing for changing the position (height) of the musical note on the staff is performed. Then, it progresses to step S94 and it is judged whether all the symbols were processed. If all the symbols have not been processed as a result of this determination, the process returns to step S92 to repeat the above-described processing. If all the symbols have been processed as a result of the determination in step S94, the process proceeds to step S95. In step S95, it is determined whether or not all measures have been processed. If all the measures have not been processed as a result of this determination, the process returns to step S92 to repeat the above-described processing. If all the measures have been processed as a result of the determination in step S95, the process proceeds to step S96.

  In step S96, the direction of the stem is adjusted. This adjustment is a process for adjusting a note whose direction is incorrect as a result of the melodic deformation process so that the direction of the note matches the normal scale.

Next, the shift process will be described with reference to the flowchart of FIG.
When the process is started, it is determined in step S101 whether or not the shift amount is zero. As a result of this determination, if the shift amount is 0, the process proceeds to end processing. If the shift amount is not 0, the process proceeds to step S102.

  In step S102, it is determined whether or not it is a note. As a result of the determination, if it is not a note, the process proceeds to step S104, and if it is a note, the process proceeds to step S104 via step S103. In step S103, the shifted note number is calculated, and the note height and the accidental symbol are corrected from the note number. Thereafter, the process proceeds to step S104.

  In step S104, it is determined whether all symbols have been processed. If all the symbols have not been processed as a result of this determination, the process returns to step S102 and the above-described processing is repeated. If all the symbols have been processed as a result of the determination in step S104, the process proceeds to step S105. In step S105, it is determined whether or not all measures have been processed. If all the measures have not been processed as a result of this determination, the process returns to step S102 and the above-described processing is repeated. If all the measures have been processed as a result of the determination in step S105, the process proceeds to step S106.

  In step S106, the direction of the stem is adjusted. This adjustment is a process for adjusting the direction of the note in accordance with the normal pitch for the note whose direction of the note is incorrect as a result of the shift process.

  As described above, according to the present embodiment, the semitone progression process can be performed only by checking the check box of the dialog box. The trouble of searching and correcting to semitone progression can be omitted. Further, even an operator with no knowledge automatically performs the semitone progression process, so that a more natural conversion result can be obtained even when a melody reversal process including a semitone progression as part of the melody is performed.

10 System bus 11 CPU
12 ROM
13 RAM
14 Image control unit 15 Display 15a Display screen 16 I / O interface 17 Hard disk drive 20 CD-ROM drive 21 CD-ROM
22 mouse 22a mouse button 23 keyboard 24 printer 50 personal computer 100 melody transformation device

Claims (6)

A melody deformation device that performs a process of inverting the melody up and down around a reference sound,
Reversing means for flipping the notes / rests in the range selected by the user up and down around the sound specified by the user;
A semitone progression processing selection means for selecting whether or not to perform a semitone progression on the notes / rests reversed by the reversing means;
Semitone progression processing means for performing semitone progression processing on the notes and rests reversed by the reversing means,
When the user selects the semitone progression processing by the semitone progression processing selection means, the semitone progression processing means performs the semitone progression processing on the notes / rests reversed by the reversing means. A melody deformation device characterized by.   When the user has selected the semitone progression processing means by the semitone progression processing selection means, the pitch of the tone is determined by the semitone progression processing means so that the chromatic scale is maintained even after the melody transformation. The melody deformation device according to claim 1, wherein: A melody transformation device having a function of performing melody transformation of a musical score to be edited displayed on a display screen of a display device,
The score to be edited is displayed in a first display area, an operation screen for changing the melody of the score to be edited is displayed in a second display area, and the score after editing is displayed in a third display area. Display control means for controlling the display device,
User operation means for setting the score information displayed on the operation screen to a predetermined value;
Melody transformation means for transforming the melody of the musical score to be edited according to the musical score information set by the user operation means;
A semitone progression processing selection means for selecting whether or not to perform a semitone progression process on the musical score whose melody has been transformed by the melody transformation means,
When the operation screen displayed on the second display unit is operated by the user operation unit, the melody deforming unit displays the musical score to be edited displayed on the first display unit in response to the operation. The melody deformation device is characterized in that the display control means displays the score after being deformed by the melody deformation means in the third display area.   The display control means includes a radio button for selecting a progress state, a radio button for selecting a reference sound for reversal, a radio button for selecting a reversal method, and a semitone progression as elements for performing melodic deformation. Check box for selecting whether to hold, check box for selecting whether or not to conduct sound processing, check box for selecting not to use double sharp or flat, and setting the frequency The melody deformation device according to claim 3, wherein a menu for setting a shift amount, a menu for setting a shift amount, and a menu for setting a delay are displayed. A melody transformation program that causes a computer to execute a process of inverting a melody up and down around a reference sound,
An inversion process in which notes / rests in a range selected by the user are flipped up and down around the sound specified by the user;
A semitone progression processing selection step for selecting whether or not to perform a semitone progression on the notes / rests reversed in the reversing step;
A semitone progression processing step for performing a semitone progression on the notes / rests reversed in the reversing step,
In the semitone progression processing selection step, if the user has selected to perform the semitone progression processing, the semitone progression processing is performed on the computer for the notes / rests reversed in the reversing step in the semitone progression processing step. A melody deformation program characterized by being executed. A melody transformation program for causing a computer to execute a melody transformation process of a musical score to be edited displayed on a display screen of a display device,
The score to be edited is displayed in a first display area, an operation screen for changing the melody of the score to be edited is displayed in a second display area, and the score after editing is displayed in a third display area. A display control step for controlling the display device,
A user operation step of setting the score information displayed on the operation screen to a predetermined value;
A melody transformation step for transforming the melody of the musical score to be edited according to the musical score information set in the user operation step;
A semitone progression process selection step for selecting whether or not to perform a semitone progression process on the musical score whose melody has been transformed in the melody transformation step,
In the melody transformation step, when the operation screen displayed on the second display unit is operated in the user operation step, the musical score to be edited displayed on the first display unit according to the operation is displayed. The melody transformation program is characterized in that the display control step controls the computer to display the score after being transformed in the melody transformation step in the third display area.

Images