JP2001318669A - Musical score display device and recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a musical score display device for displaying a musical score in a form which a user can easily recognize any time. SOLUTION: When both a natural note and its derived tone are not sounded, the heads presenting sounding musical tones are all arranged and displayed in the fundamental display column. When they are sounded together, the heads presenting the natural notes are arranged and displayed in a sub-display column a, and the heads presenting other musical tones including their derived tones are arranged and displayed in a sub-display column b. A sharp presenting a kind of a derived tone or a flat is displayed in a column between the sub-display columns a, b. Both of the sub-display columns a, b consists of three display columns, and one of them is selected according to the number of columns of sharp or flat. Thus, according the number of columns, the interval between the sub-display columns a, b in the direction along a music sheet is varied.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for displaying a musical score by arranging a symbol such as a note head, a sharp symbol, or a variable symbol on a staff score.

[0002]

2. Description of the Related Art At present, many attempts that have not been made in music expression have been introduced. Accordingly, as shown in, for example, FIG. 21 or FIG. 22, chords composed of five constituent tones are often performed.

A conventional score display apparatus is shown in FIGS.
The chords notated as shown in FIG.
And as shown in FIG. In FIG.
A note represented by "C5" is appended with a sharp symbol represented by "#" and a natural symbol, and two sounds, that is, "C5" and a sound represented by attaching the acute symbol thereto (hereinafter, " C # 5 ". Other sounds expressed with a sharp symbol or a modified symbol are similarly described.) On the other hand, in FIG. 24, two sounds, that is, “C5” and “C ♭ 5” are represented by blinking a variable symbol represented by an arrow “で” in the figure. However, in such a music score display method, it is difficult to recognize the correspondence between a symbol (symbol) such as a sharp symbol or a modified symbol and a notehead which is a symbol representing a pitch, so that it is difficult for the user to recognize the content. There was a problem.

In the example shown in FIG. 23, one notehead is provided with a sharp symbol and a natural symbol. But usually
It is not possible to attach them to the same notehead. Such things can easily cause confusion. The confusion is, of course, more likely to occur as the number of symbols, such as sharp symbols, odd symbols, and natural symbols, increases, or as they gather in a smaller area.

In the example shown in FIG. 24, the number of symbols displayed by blinking the variable symbols is smaller than that in the example shown in FIG. However, the blinking of the symbol makes it easier for the user to grasp the erroneous meaning of playing the sound. Other than that, since it blinks, you cannot understand the contents unless you have been watching the score for a certain period of time.

An object of the present invention is to provide a music score display device which always displays a music score in a form which is easily recognized by a user.

[0007]

The musical score display device of the present invention is a device for displaying a musical score by arranging a symbol such as a note head, a sharp symbol, or a variable symbol on a music score. A pitch data acquisition unit for acquiring pitch data representing a pitch, a stem sound in a pitch represented by the pitch data acquired by the pitch data acquisition unit, and a case where a derivative sound of the stem sound exists. The display position in the direction along the line constituting the staff notation of the notehead used to specify the pitch of the stem and the notehead used to specify the pitch of the derivative of the stem is set to different positions. Note head display position setting means, symbol display position setting means for setting a display position of a symbol representing a type of a derived sound based on the note head display position set by the note head display position setting means, and note head display The display positions set by the position setting means and the symbol display position setting means, respectively. Accordingly includes a score display means for displaying the musical score by placing the symbol representing the type of note head, and derived sound, a.

In the above arrangement, the notehead display position setting means sets the display position in the direction along the line on the notehead for pitching the stem tone to indicate the pitch of the derivative sound of the stem tone. It is desirable to set it ahead of the note head for performance on the performance progression.

[0009] The note head display position setting means is provided for determining whether or not the pitch represented by the pitch data obtained by the pitch data obtaining means includes a stem tone and a pitch derived from the stem tone. ,
It is desirable to set a plurality of display positions of the noteheads in the direction along the line so that the noteheads are displayed according to a predetermined classification.

[0010] The notehead display position setting means may set an interval in a direction along a line between the notehead for specifying the pitch of the stem and the notehead for specifying the pitch of a derivative of the stem. It is desirable to change according to the number of the derived sounds.

The recording medium of the present invention is a recording medium readable by a device for displaying a musical score by arranging a symbol such as a note head, a sharp symbol, or a modified symbol on a staff score.
Pitch data acquisition means for acquiring pitch data representing the pitch of a musical tone, and a pitch represented by the pitch data acquired by the pitch data acquisition means include a stem sound and a derivative sound of the stem sound. In this case, the display position in the direction along the line forming the staff of the notehead used for specifying the pitch of the stem and the notehead used for specifying the pitch of the derivative of the stem is differently set. And a symbol display position setting means for setting a display position of a symbol representing the type of the derived sound based on the display position of the notehead set by the notehead display position setting means. According to the display positions set by the head display position setting means and the symbol display position setting means, respectively,
And a musical score display means for displaying a musical score by arranging symbols representing types of derived sounds.

According to the present invention, when displaying a musical score as a musical tone that simultaneously produces a stem sound and its derivative sound, the stem sound and the derivative sound are divided into at least the stem sound and the derivative sound, and the position in the direction along the line forming the staff notation is displayed. To display a notehead representing a stem sound and a notehead representing a derivative sound thereof, and display a sharp symbol or a modified symbol in accordance with the display position of the notehead.

With such display, noteheads are displayed for each musical tone to be pronounced, and symbols such as sharp symbols and odd symbols to be attached to the noteheads are displayed for each notehead.
As a result, the score is displayed in a form that the user can easily recognize.

[0014]

Embodiments of the present invention will be described below in detail with reference to the drawings. <First Embodiment> FIG. 1 is a diagram showing an external appearance of an electronic musical instrument equipped with a score display device according to the present embodiment.

As shown in FIG. 1, the electronic musical instrument is an electronic musical instrument having a keyboard 101 having a large number of keys (here, 61 keys). On its upper surface is a liquid crystal display 1
02 is provided. The liquid crystal display 102 can display an arbitrary image on the entire screen, and the musical score is displayed on this. Note that instead of mounting the liquid crystal display 102, a function of connecting to a display device such as a television may be mounted.

FIG. 2 is a circuit diagram of the electronic musical instrument. As shown in FIG. 2, a CPU 2 for controlling the entire musical instrument
01, a ROM 202 storing programs to be executed by the CPU 201, various image data, control data, and the like;
A RAM 203 used by the CPU 201 for work,
A keyboard 101, a liquid crystal display 102, an operation unit 204 having various switches and buttons, and a CPU 2
01, a sound source 205 for generating waveform data of musical tones to be produced according to the instruction of the sound source 20, and a sound system 20 for converting the waveform data generated by the sound source 205 into sound and outputting the sound.
6 is provided. The musical score display device according to the present embodiment is realized as a device for displaying the musical pitch of the key pressed by the user on the keyboard 101 on the liquid crystal display 102.

The keyboard 101 and the operation unit 204 are provided with a circuit for detecting a user operation on the keyboard 101 and the operation unit 204. The sound system 206 also includes a D / A converter that converts waveform data input from the sound source 205 into an analog audio signal, an amplifier that amplifies the audio signal output by the converter, and an audio signal output by the amplifier. It is composed of a speaker or the like that converts the data into a sound.

The operation of the above configuration will be described. C
When the power is turned on, the PU 201 reads out and executes the program stored in the ROM 202,
Start controlling the entire instrument. The liquid crystal display 102 transmits and displays image data for displaying a staff notation, for example. After that, control is performed according to an operation on the keyboard 101 or the operation unit 204 by the user.

The liquid crystal display 102 includes, for example, a memory (for example, a VRAM) having at least a storage capacity for one screen, and drives a liquid crystal panel in accordance with image data written in the memory, that is, applies a voltage between liquid crystals. Use to display the image. Therefore, the change of the display content including the display of a new image is performed by rewriting the image data stored in the memory.

As shown in FIG. 3, the ROM 202 stores various kinds of symbols constituting a musical score, specifically, image data such as a staff notation, a treble clef, a bass clef, a note head, "#", and "@". Is stored. From this, the CPU 201
Is stored in the work area secured in the RAM 203 in the ROM 20.
2, the image data of the symbol to be displayed read from
By writing according to the display position of the symbol, image data for one screen to be transmitted to the liquid crystal display 102 is generated. Once the image data for one screen is generated, all or part of the image data in the work area is rewritten according to the type and number of symbols to be displayed or the change of the display position. Thereby, the image data of the area is updated. The image data of the updated area is sent to the liquid crystal display 102 so that the update is reflected on the display content.

As shown in FIG. 4, various working areas are secured in the ROM 203 for controlling musical instruments. The VRAM area in FIG. 4 corresponds to the work area, and the image data stored in the VRAM area is sent to the liquid crystal display 102 and stored in the memory.

When the user operates the operation unit 204, information indicating the contents of the operation is sent from the detection circuit to the CPU 20.
Sent to 1. The CPU 201 specifies a target to be controlled based on the information, and controls the specified target. Thereby, although a detailed description is omitted, the user can operate the operation unit 204 to change various settings and the contents of the settings.

On the other hand, the user presses a key on the keyboard 101,
Alternatively, when the key is released, similarly to the operation unit 204, information indicating the operation content is transmitted from the detection circuit to the CP.
It is sent to U201. The CPU 201 generates and sends a command to be sent to the sound source 205 based on the information. As a result, a musical sound is emitted from the sound system 206 in real time in response to an operation on the keyboard 101 by the user. In other cases, the key being pressed by the user is displayed on the liquid crystal display 102 as a musical score. The musical score is displayed as follows.

FIG. 9 is a diagram for explaining a score display method according to the present embodiment, and FIG. 10 is a diagram showing an example of a score display according to a situation. First, the score display method will be specifically described with reference to FIGS.

In this embodiment, as shown in FIG. 9, as a candidate for a column in which note heads are arranged along the vertical direction (Y direction) of a line forming a staff, the direction along the line (X direction)
A basic display column having a different upper position and two sub-display columns a and b located on both sides of the basic display column are set. The basic display columns are
Select when both the stem and its derivatives do not exist,
When they are both present, two sub display columns a and b are selected. Hereinafter, the presence of both a stem sound and its derivative sound is also expressed as including adjacent same sounds.

The sub-display column a is used for arranging (arranging) noteheads representing stem sounds, and the other sub-display column b contains other musical tones including a derivative sound of the stem sound. It is used to line up noteheads. As a result, the notehead representing the stem sound is positioned ahead of the notehead representing the derivative sound in the performance progression. This is because, by adopting such a positional relationship, it is possible to avoid the necessity of arranging a natural symbol in front of a notehead representing a trunk sound. As a result, by adopting such a positional relationship, the number of symbols to be displayed other than the note head can be suppressed, and thereby, a musical score whose contents can be more easily recognized can be displayed.

By displaying all noteheads representing musical tones, the user can immediately understand how many musical tones are sounding. The notehead representing the stem and its derivatives is X
By changing the position in the direction, a symbol representing a sharp symbol, a modified symbol, or a natural symbol can be individually attached to the note head. For this reason, it is possible to always display the score in a form that is easy for the user to recognize.

The sub-display column a is composed of sub-display columns a1 to a3, one of which is selected. Similarly, the sub-display column b includes sub-display columns b1 to b3, and one of them is selected. This is because it is necessary to arrange sharp symbols and odd symbols between the sub-display columns a and b so that the symbols are easy to see. Therefore, according to the number of symbols, the interval in the direction (X direction) along the staff notation line therebetween. Is to change. In the present embodiment, the symbols are arranged in rows in order to prevent the sharp symbols and the modified symbols from overlapping and becoming difficult to see. From this, if there is only one display column of the acute symbol or the modified symbol, the sub-display columns a1 and b1 are selected, and if there are two display columns, the sub-display columns a2 and b2 are selected and the display is performed. If there are three columns, the sub display columns a3 and b3 are selected. As a result, as shown in FIG. 10, as the number of display columns increases, the distance between the sub display columns a and b in the X direction is increased. By controlling the interval in this way, it is possible to prevent the noteheads representing the stem sound and its derivative sounds from being separated unnecessarily.

The musical score display as described above is realized as follows. The A to C registers shown in FIG.
GISTER) is an area reserved for displaying the score. Each of these registers is composed of a number of storage areas each having two areas. Specifically, for example, in the B register, there are a total of n + 1 storage areas represented by [0] to [n], and these storage areas are further added with [0] or [1]. It is composed of the indicated area. Hereinafter, as shown in FIG. 4, the area is represented by [], such as “area [n]” or “area [n] [0]”. If the area does not need to be particularly limited, that is, if the value in the parentheses can be any value, the contents in the parentheses will be omitted.

The CPU 201 stores, in the B register, data indicating the operation content transmitted by the detection circuit of the keyboard 101. In the storage, the note number is stored in the area [] [1] for each key pressed by the user, in other words, for each musical tone that starts or sounds, and the area [] [1] [0] is stored by storing a value of 1 indicating that the musical tone of the pitch of the number is generating sound (including the start of sound generation). As a result, the B register contains
The content as shown in the upper middle is stored.

Next, the CPU 201 determines whether or not the data of the stem sound and its derivative sound (musical sound expressed by adding a sharp sign or a modified sign to the stem sound) are both stored in the B register. And if such data is stored,
The main tone data is stored in the A register and erased from the B register. By performing such an operation on the B register, the contents of the B register are changed from the upper row to the lower row. One A register stores the contents as shown in FIG. In this way, the data of the musical tone that starts or is sounding is stored separately in the A register and the B register as necessary. The tone data stored in the A register is used to display note heads in the sub display column a, and the tone data stored in the B register is used to display note heads in the sub display column b. Can be If tone data is not stored in the A register, the tone data stored in the B register is used to display noteheads in the basic display column.

After performing the above operation on the B register, it is checked whether or not the data of the derived sound is stored in the B register. As a result, if the data of the derived sound is stored, the note number corresponding to the derived sound is stored in the area [] [0] of the C register, and a number (hereinafter referred to as a number) representing a display string of a sharp symbol or a modified symbol is stored. , Called line number)
In its area [] [1]. In this way, data for displaying a sharp symbol or a variable symbol is stored in the C register. As a result, the B register in FIG.
If the data as shown in the lower row is stored,
The contents shown in FIG. 7 are stored in the C register. As shown in FIG. 8, 2 is stored as data in the storage area of the variable t prepared for holding the display column number of the sharp symbol or the variable symbol.

The CPU 201 selects a note head display column from the value assigned to the variable t. The display position (X coordinate) in the X direction of each display column is, as shown in FIG.
The X coordinate corresponding to the selected display column is read from the ROM 202 and the X coordinate for displaying the note head is set. The correspondence between the display position (Y coordinate) of the notehead in the Y direction and the note number is defined in the pitch-Y coordinate conversion table shown in FIG. From this, the CPU 20
1 reads the Y coordinate corresponding to the note number stored in the B register or the A register from the table and sets the Y coordinate for displaying the note head. The Y-coordinate of a sharp symbol or a variable symbol attached to a note head is set in the same manner. The X-coordinate (here, the correction value (shift amount) from the reference X-coordinate) for each display column of the sharp symbol or the variable symbol is
For each display column (basic display column, sub-display columns a1-3 (b1-
3) is defined in the correction value conversion table shown in FIG. Accordingly, the CPU 201 sets the X coordinate of the sharp symbol or the variable symbol by reading the X coordinate corresponding to the line number stored in the C register from the table according to the display column for displaying the note head. .

As described above, the type of the symbol to be arranged on the musical score and the display position thereof are determined. CPU201
Reads the image data of the symbol to be arranged from the ROM 202 and outputs the VR data of the RAM 203 according to the display position of the symbol.
Store in the AM area. By performing this for each symbol, image data for one screen is generated in the VRAM area. The image data for one screen generated in the VRAM area is sent to the liquid crystal display unit 102 and written into its memory, whereby the musical score (see FIG. 9 or FIG. 10) is displayed on the display unit 102.

FIGS. 11 to 17 are operation flowcharts of the musical score display processing. CPU 20 after power-on
1 shows the flow of the process of the important part related to the musical score display, which is executed. Next, FIGS.
The musical score display processing will be described in detail with reference to an operation flowchart shown in FIG. The operation flowcharts shown in FIG. 11 to FIG.
02 is executed by executing the program stored in the program.

First, in step 1101, initialization is performed to set the musical instrument to a predetermined state. In a succeeding step 1102, each image data of the staff notation, the treble clef, and the f-clef is read out from the ROM
03 VRAM area, and write it to the LCD 1
02, the staff 102 is displayed on the display 102. Thereafter, the process proceeds to step 1103.

In step 1103, it is determined whether or not information representing the operation content of the user has been input from the keyboard 101.
When the user presses or releases any key on the keyboard 101, information representing the operation content is transmitted from the keyboard 101 to the C key.
Since it is sent to the PU 201, the determination is YES and the process moves to step 1104. If not,
The determination is NO. For example, after a predetermined time has elapsed, step 1103 is executed again.

In step 1104, the image data of the symbols such as noteheads, acute symbols, and odd symbols stored in the VRAM area are erased, and the image data of the staff notation (including the treble clef and the f-clef) is deleted. Just leave. Also, A
Clear the contents of the ~ C register. Next step 110
At 5, 0 is substituted for the variable n. After doing that assignment,
Move to step 1106.

Although it is not necessary to specifically describe in detail which musical tone of the pitch is being generated, for example, an area is secured in the RAM 203, and for each note number, whether or not the musical tone corresponding to that number is being generated. Is stored by storing a value indicating In steps 1106 to 1111, while sequentially incrementing the value of the variable n, it is checked whether or not the tone of the note number designated by the value of the variable n in the area is sounding. Processing for updating the contents is performed.

First, in step 1106, it is determined whether or not the tone of the note number corresponding to the value of the variable n is being generated. If the user has pressed the key to which the number is assigned, the determination is YES because a value indicating that fact is stored in the area, and the B register area [n] [1] is determined in step 1107. After substituting 1 for (1), the process proceeds to step 1109. Otherwise, the determination is no and at step 1108 the area [n] [1]
Then, the process proceeds to step 1109.

In step 1109, the value of the variable n is stored in the area [n] [0] of the B register. In the following step 1110, the value of the variable n is incremented. Thereafter, the process proceeds to step 1111, where the value of the variable n is 60
It is determined whether it is greater than. The keyboard 101 has 61 keys. Accordingly, when the updating of the contents of the B register is completed according to the state of all keys, the determination becomes YES, and the process shifts to step 1112 shown in FIG. Otherwise, the determination is no and the process returns to step 1106.

In this way, data corresponding to the state of the key corresponding to each area [] of the B register is stored. Steps 1112 to 1121 shown in FIG.
Then, referring to the contents of the B register, data of a stem sound to be pronounced together with the derived sound is stored in the A register, and processing for deleting the data of the stem sound from the B register is performed.

First, in step 1112, 0 is substituted for variables m and n, respectively. In a succeeding step 1113, it is determined whether or not 1 is stored in the area [n] [1] of the B register. If the user has pressed the key having the value of the variable n as the note number, the determination is YES and the process moves to step 1114. If not,
The determination is no and the process moves to step 1120 described below.

In step 1114, it is determined whether or not the note number stored in the area [n] [0] of the B register is a number assigned to a white key, that is, whether or not the number is a stem tone number. If the user has pressed a white key with the value of variable n as the note number, the determination is YE
In S, the flow shifts to step 1115. Otherwise, the determination is no and the process moves to step 1120.

At step 1115, step 1114
1 indicating that the derivative sound of the musical tone determined as the main tone is being produced in the area [n + 1] [1] or [n] of the B register.
-1] It is determined whether or not it is stored in [1]. Variable n
If the user has pressed a black key to which a note number of a derivative sound of the white key is assigned in addition to the white key having the note number as the note number, the determination is YES and step 11
Move to 16. Otherwise, the determination is no and the process moves to step 1120.

In step 1116, the value of the variable n is stored in the area [m] [0] of the A register. In the next step 1117 to be executed, the area [m] of the A register
1 is stored in [1]. After that, step 1118
Then, 0 is stored in the area [n] [1] of the B register, the value of the variable m is incremented in step 1119, and the value of the variable n is incremented in step 1120. After the value of the variable n is incremented, the process proceeds to step 1121.

In step 1121, the value of the variable n is 60
It is determined whether it is greater than. When all the data of the stem sound that is pronounced together with the derived sound from the B register is stored in the A register, the determination is YES and the process proceeds to step 1122 shown in FIG. Otherwise, the determination is no
And returns to step 1113.

Thus, the operation shown in FIG. 5 is performed on the contents of the B register, and the contents shown in FIG. 6 are stored in the A register. In steps 1122 to 1134 of FIG. 13, processing for storing data for displaying a sharp symbol or a variable symbol in the C register is performed on the B register after the operation is performed.

First, in step 1122, variables n,
0 is substituted for l, s, and t, respectively. In a succeeding step 1123, it is determined whether or not 1 is stored in the area [n] [1] of the B register. If the user has pressed a key whose note number is the value of the variable n, the determination is Y
It becomes ES and moves to step 1124. Otherwise, the determination is no and step 113 described below
Move to 3.

In step 1124, it is determined whether or not the note number stored in the area [n] [0] of the B register is a number assigned to a black key, that is, whether or not the number is a derived sound number. If the user has pressed the black key whose note number is the value of the variable n, the determination is Y
It becomes ES and moves to step 1125. Otherwise, the determination is no and the process moves to step 1133.

In step 1125, the value of variable n is stored in area [l] [0] of the C register. In the following step 1126, the value of the variable 1 is incremented, and in the subsequent step 1127, the value of the variable s is incremented. After the value of the variable s is incremented, the flow shifts to step 1128.

At step 1128, it is determined whether or not the value of the variable s is larger than 3. If its value is greater than 3,
The determination is YES, and 1 is substituted for the variable s in step 1129, and the process proceeds to step 1130. Otherwise, the determination is no and the process moves to step 1130.

At step 1130, the value of the variable s is stored as a line number in the area [l] [1] of the C register. In a succeeding step 1131, it is determined whether or not the value of the variable s is larger than the value of the variable t. When the value of variable s is variable t
If the value is larger than the value of
After substituting the value of variable s for variable t in 132, step 1
Move to 133. Otherwise, the determination is no and the process moves to step 1133. If the value of the variable s is larger than the value of the variable t, by substituting the value of the variable s for the variable t, the largest value among the values substituted for the variable s is retained for the variable t. .

In step 1133, the value of the variable n is incremented. In a succeeding step 1134, it is determined whether or not the value of the variable n is larger than 60. If all data for displaying a sharp symbol or a modified symbol is stored in the C register with reference to the contents of the B register, the determination becomes YES, and the flow shifts to step 1135 shown in FIG. Otherwise, the determination is no and the above step 11
Return to 23.

As described above, the variable s is 1 → 2 → 3 →
The value is substituted cyclically in the flow of 1. The assignment is
This is performed as needed while incrementing the value of the variable n used to refer to the data in the area [] of the B register. For this reason, as shown in FIG. 9 or FIG. 10, it is possible to display a sharp symbol or a modified symbol, and it is surely prevented that a portion of the symbol overlaps with another symbol. Will be.

At the point when the process proceeds to step 1135 in FIG. 14, the contents of the A to C registers are in a determined state. Therefore, after step 1135, processing for displaying a musical score according to the contents stored in those registers is performed.

First, at step 1135, it is determined whether or not the value of the variable m is 0. As mentioned above, its initial value is 0
The value of the variable m is incremented each time data is stored in the area [] of the A register. For this reason, the white key of the relationship in which the user becomes a stem sound and a derivative sound of the stem sound,
If the key has been depressed and the black key has been pressed, the result is that a value greater than or equal to 1 has been assigned to the variable m, the determination is YES and the process moves to step 1136. Otherwise, the determination is no and the process moves to step 1149 shown in FIG.

In steps 1136 to 1148, processing for displaying the note heads side by side in the basic display column is performed.
First, in step 1136, 0 is substituted for a variable n.
In the following step 1137, the area [n] of the B register
It is determined whether or not 1 is stored in [1]. If the user has pressed the key having the value of the variable n as the note number, the determination is YES and the process moves to step 1138. Otherwise, the determination is no and the process moves to step 1140, described below.

In step 1138, the pitch and pitch shown in FIG.
From Y coordinate conversion table, B register area [n]
The Y coordinate corresponding to the note number stored in [0] is read out and set as the Y coordinate for displaying the note head. In the following step 1139, the X coordinate of the basic display column is set as the X coordinate for displaying the notehead, and the image data of the notehead is converted to the VRA according to the XY coordinate determined thereby.
Store in M area. After that, it moves to step 1140.

In step 1140, the value of the variable n is incremented. Thereafter, in step 1141, it is determined whether the value of the variable n is greater than 60. When all the image data of the notehead to be displayed is written in the VRAM area with reference to the contents of the B register, the determination is Y.
It becomes ES and moves to step 1142. Otherwise, the determination is no and the process returns to step 1137 to execute the subsequent processes in the same manner.

By repeatedly executing the processing loop formed in steps 1137 to 1141 until the determination in step 1141 becomes YES, a note head for specifying the pitch of the key pressed by the user Image data is V
The data is sequentially written to the RAM area.

In step 1142, 0 is substituted for the variable l. In the following step 1143, it is determined whether or not a value other than 0 is stored in the area [l] [1] of the C register. When the user is pressing the black key assigned to the note number stored in the area [l] [0] of the C register, a line number of 1 or more is stored in the area [l] [1]. Therefore, the determination is YES and the process moves to step 1144. Otherwise, the determination is no and the process moves to step 1147 described below.

In step 1144, the pitch and pitch shown in FIG.
From the Y coordinate conversion table, the area [l] of the C register
The Y coordinate corresponding to the note number stored in [0] is read, and set as the Y coordinate for displaying the symbol (“#” or “♭”) specified from the note number. In the following step 1145, the correction value of the X coordinate corresponding to the line number stored in the area [l] [1] in the basic display column is read from the correction value conversion table shown in FIG. In step 1146, the process proceeds to step S1146, where the X-coordinate of the basic display column is added to the correction value read in step S1145 to set the X-coordinate for displaying the symbol. Store in VRAM area. Then step 11
Move to 47.

In step 1147, the value of the variable 1 is incremented. In the next step 1148 to be executed,
It is determined whether the value of the variable 1 is greater than 24. The number of areas [] of the C register is 25. From this, C
If all the image data of the symbol specified by the data stored in the register has been stored in the VRAM area, the determination is YES, and 1 is stored in the VRAM area.
After sending the image data for the screen to the liquid crystal display 102,
Returning to step 1103 in FIG. 11, the subsequent processes are executed in the same manner. Otherwise, the determination is no and the process returns to step 1143.

By repeatedly executing the processing loop formed in steps 1143 to 1148 until the determination in step 1148 becomes YES, a symbol for specifying the pitch of the black key pressed by the user is displayed. Are sequentially written in the VRAM area.

When the determination in step 1135 is NO and the process proceeds to step 1149 in FIG. 15, this means that note heads are displayed in the sub display columns a and b. Therefore, in and after step 1149, processing for displaying note heads in the sub display columns a and b is performed.

First, in step 1149, it is determined whether or not the value of the variable t is 1. If 1 has been substituted for the variable t, the determination becomes YES, and the routine goes to Step 1150. Otherwise, the determination is no and the process moves to step 1169 shown in FIG.

The fact that 1 is substituted for the variable t means that the number of display columns of the acute symbol or the variable symbol is 1, and that the note heads are displayed side by side in the sub display columns a1 and b1. From this, in steps 1150 to 1168,
Processing for such display is performed.

First, at step 1150, 0 is set to the variable m.
Is assigned. In the following step 1151, it is determined whether or not 1 is stored in the area [m] [1] of the A register. If the user has pressed the key (white key) assigned to the note number stored in area [m] [0], the determination is YES and the process moves to step 1152. Otherwise, the determination is no and the process moves to step 1154, described below.

In step 1152, the pitch and pitch shown in FIG.
From the Y coordinate conversion table, C register area [m]
The Y coordinate corresponding to the note number stored in [0] is read out and set as the Y coordinate for displaying a notehead indicating the pitch corresponding to the number. Following step 1153
Then, the sub-display column a1 is set as the X coordinate for displaying the note head.
Is set, and the image data of the notehead is stored in the VRAM area in accordance with the XY coordinates determined thereby. After that, it moves to step 1154.

At step 1154, the value of the variable m is incremented. Thereafter, at step 1155, it is determined whether or not the value of the variable m is greater than 24. The number of areas [] of the A register is 25. Accordingly, if all the image data of the notehead specified by the data stored in the A register has been stored in the VRAM area, the determination becomes YES and the flow shifts to step 1156. Otherwise, the determination is no and the above step 115
Return to 1.

By repeatedly executing the processing loop formed in steps 1151 to 1155 until the determination in step 1155 becomes YES, a note head for specifying the pitch of a stem sound pronounced together with the derived sound Are sequentially written in the VRAM area. As a result, note heads indicating the pitches of the main sounds are displayed side by side in the sub display column a1.

In steps 1156 to 1161, a process for displaying the note heads indicating the pitches of other musical tones including the derived tone in the sub display row b1 with reference to the contents of the B register is performed.

First, in step 1156, 0 is set to the variable n.
Is assigned. In a succeeding step 1157, it is determined whether or not 1 is stored in the area [n] [1] of the B register. If the user is pressing a key to which the note number stored in the area [n] [0] of the B register is assigned, 1 is stored in the area [n] [1]. If so, the process moves to step 1158. Otherwise, the determination is no and the process moves to step 1160, described below.

At step 1158, the pitch and pitch shown in FIG.
From Y coordinate conversion table, B register area [n]
The Y coordinate corresponding to the note number stored in [0] is read out and set as the Y coordinate for displaying a notehead indicating the pitch corresponding to the number. Following step 1159
Then, the sub display column b1 is used as the X coordinate for displaying the note head.
Is set, and the image data of the notehead is stored in the VRAM area in accordance with the XY coordinates determined thereby. Thereafter, the process proceeds to step 1160.

At step 1160, the value of the variable n is incremented. Thereafter, in step 1161, it is determined whether or not the value of the variable n is greater than 60. If all the image data of the notehead specified by the data stored in the B register has been stored in the VRAM area, the determination is YES.
Then, the flow shifts to step 1162. Otherwise, the determination is no and the process returns to step 1157.

Thus, steps 1157 to 1157
By repeatedly executing the processing loop formed in step 61 until the determination in step 1161 becomes YES, image data of noteheads to be displayed side by side in the sub display column b1 is sequentially written in the VRAM area. Will be.

In steps 1162 to 1168, a process for displaying a symbol representing a sharp symbol or a modified symbol between the sub display column a1 and the sub display column b1 is performed with reference to the contents of the C register.

First, at step 1162, 0 is set to the variable l.
Is assigned. In the following step 1163, it is determined whether or not a value other than 0 is stored in the area [l] [1] of the C register. When the user is pressing the black key assigned to the note number stored in the area [l] [0] of the C register, a line number of 1 or more is stored in the area [l] [1]. Therefore, the determination is YES and the process moves to step 1164. Otherwise, the determination is no and the process moves to step 1167 described below.

At step 1164, the pitch and pitch shown in FIG.
From the Y coordinate conversion table, the area [l] of the C register
The Y coordinate corresponding to the note number stored in [0] is read, and set as the Y coordinate for displaying the symbol (“#” or “♭”) specified from the note number. In the subsequent step 1165, the X value corresponding to the line number stored in the area [l] [1] in the sub display column a1 (or b1) is obtained from the correction value conversion table shown in FIG.
Read the coordinate correction value. Step 1 to move to later
In step 166, the X coordinate of the sub display column b1 is set to step 1165.
X to display the symbol by adding the correction value read in
The coordinates are set, and the image data of the symbol is stored in the VRAM area according to the XY coordinates determined thereby. Thereafter, the flow shifts to step 1167.

In step 1167, the value of the variable 1 is incremented. In the next step 1168 to be executed,
It is determined whether the value of the variable 1 is greater than 24. If all the image data of the symbol specified by the data stored in the C register has been stored in the VRAM area, the determination is YES.
After the image data for one screen stored in the VRAM area is transmitted to the liquid crystal display 102, FIG.
Then, the process returns to step 1103 to execute the subsequent processes in the same manner. Otherwise, the determination is no and the process returns to step 1163.

By repeatedly executing the processing loop formed in steps 1163 to 1168 until the determination in step 1168 becomes YES, a symbol for specifying the pitch of the black key pressed by the user is displayed. Are sequentially written in the VRAM area.

In step 1169 of FIG. 16 to which the determination in step 1149 is NO, the process determines whether the value of the variable t is 2. If 2 has been substituted for the variable t, the determination is YES and the routine moves to Step 1170. Otherwise, the determination is no and the process moves to step 1189 in FIG.

The fact that 2 is substituted for the variable t means that the number of display columns of the acute symbol or the variable symbol is 2, and the note heads are displayed side by side in the sub display columns a1 and b1. From this, in steps 1170 to 1188,
Processing for such display is performed. However, the contents are basically the same as those in steps 1150 to 11 described above.
Since it is the same as 68, detailed description is omitted.

On the other hand, shifting to step 1189 in FIG. 17 means that 3 is substituted for the variable t. For this reason, the number of display columns of sharp symbols or variable symbols is three, and note heads must be displayed side by side in the sub display columns a3 and b3. From this, steps 1189-12
At 07, processing for such display is performed.
However, the contents are basically the same as those in step 11 described above.
Same as 50 to 1168. Therefore, a detailed description is omitted.

In the present embodiment, only noteheads representing stems are displayed side by side in the sub-display row a, and noteheads representing other tones including the derived sounds are displayed side by side in the sub-display row b. However, the assignment of musical sounds is not limited to this. For example, only noteheads representing derived sounds may be displayed side by side in the sub display row b, and noteheads representing other tones including the stem tone may be displayed side by side in the sub display row a.

In addition, as shown in FIG. 18, for example, as shown in FIG. 18, only one sub-display row is prepared behind the basic display row, and when both the trunk sound and its derivative sound are present, When the same tone is included, only the noteheads representing the main tone may be displayed side by side in the sub display column, and the noteheads representing other tones including the derived sound may be displayed side by side in the basic display column. . Conversely, note heads may be displayed side by side in the basic display column and the sub display column. In such a case, FIG.
The natural symbol shown in FIG. 8 (b) can be omitted. Alternatively, as shown in FIG. 20 (a), only one sub-display row is prepared in front of the basic display row, noteheads representing stem sounds are arranged in the sub-display row, and the derivative sounds are displayed in the basic display row. May be displayed side by side. The note heads arranged in the basic display column and the sub display column may be reversed.

As in the present embodiment, when a basic display column and two sub-display columns are prepared, FIG.
As shown in the above, noteheads representing derived sounds are arranged in the sub display column a,
The noteheads representing the stem tone may be arranged in the sub-display row b, and the noteheads representing other musical tones may be arranged and displayed in the basic display row. As shown in FIG. 20B, the sub display columns a and b
May be reversed. Or, FIG.
As shown in (c), only noteheads representing derived sounds may be arranged in the sub-display row a, and noteheads representing other tones including the stem tone may be arranged and displayed in the sub-display row b. Like these,
The present invention can be variously modified.

In this embodiment, the key pressed by the user is displayed in the form of a musical score. However, the musical score may be displayed for performance data such as a standard MIDI file. . In the case of performance data, a chord may be determined based on, for example, the tone generation start timing of each musical tone, and its constituent sounds may be displayed in a musical score as described above. In the present embodiment, the present invention is applied to a musical score display device mounted on an electronic musical instrument, but the musical score display device to which the present invention can be applied is not limited thereto.

The program for realizing the above operation may be recorded on a recording medium such as a CD-ROM, a floppy (registered trademark) disk, or a magneto-optical disk and distributed. Alternatively, using a communication line such as a public network,
A part or all of the program may be distributed. In such a case, the user can apply the present invention to the musical score display device or a data processing device such as a computer by obtaining the program and loading the program. From this,
The recording medium may be one that can be accessed by an apparatus that distributes the program.

[0091]

As described above, according to the present invention, when a musical score is displayed as a musical tone that simultaneously produces a stem sound and its derivative sound, the stem sound and the derivative sound are divided at least into a staff notation. By changing the position in the direction along the line, a notehead representing a stem sound and a notehead representing a derivative sound are displayed, and a sharp symbol or a modified symbol is displayed according to the display position of the notehead. . As a result, noteheads are displayed for each musical tone to be pronounced, and symbols such as acute symbols and variable signs to be attached to the noteheads are displayed for each notehead. Therefore, the score can be displayed in a form that is easy for the user to recognize.

[Brief description of the drawings]

FIG. 1 is a diagram showing an external appearance of an electronic musical instrument equipped with a musical score display device according to an embodiment.

FIG. 2 is a circuit configuration diagram of an electronic musical instrument equipped with the musical score display device according to the present embodiment.

FIG. 3 is a diagram illustrating a mapping example of a ROM.

FIG. 4 is a diagram illustrating a mapping example of a RAM.

FIG. 5 is a diagram illustrating an example of the contents of a B register and a method of operating the contents.

FIG. 6 is a diagram illustrating an example of the contents of an A register.

FIG. 7 is a diagram illustrating an example of the contents of a C register.

FIG. 8 is a diagram illustrating an example of data stored in a storage area for a variable t.

FIG. 9 is a diagram illustrating a score display method according to the present embodiment.

FIG. 10 is a diagram showing a musical score display example according to a situation.

FIG. 11 is an operation flowchart of a musical score display process.

FIG. 12 is an operation flowchart of a musical score display process (continuation 1).

FIG. 13 is an operation flowchart of a musical score display process (continuation 2).

FIG. 14 is an operation flowchart of a musical score display process (continuation 3).

FIG. 15 is an operation flowchart of a musical score display process (continuation 4).

FIG. 16 is an operation flowchart of a musical score display process (continuation 5).

FIG. 17 is an operation flowchart of a musical score display process (continuation 6).

FIG. 18 is a diagram illustrating another score display method (part 1).

FIG. 19 is a diagram for explaining another score display method (part 2).

FIG. 20 is a diagram illustrating another score display method (part 3).

FIG. 21 is a diagram illustrating an example of musical notation of a chord (part 1).

FIG. 22 is a diagram illustrating an example of musical notation of chords (part 2).

FIG. 23 is a view showing an example of a conventional musical score display (part 1).

FIG. 24 is a diagram showing an example of a conventional musical score display (part 2).

[Explanation of symbols]

 101 keyboard 102 liquid crystal display 201 CPU 202 ROM 203 RAM

Claims (5)

[Claims] An apparatus for displaying a musical score by arranging a symbol such as a notehead, a sharp symbol, or a variable symbol on a staff notation, wherein the pitch acquires pitch data representing the pitch of a musical tone. Data acquisition means, when a pitch represented by the pitch data acquired by the pitch data acquisition means has a stem sound, and a derivative sound of the stem sound exists,
Set the display positions of the noteheads used for specifying the pitch of the stem and the noteheads used for specifying the pitch of the derivative of the stem in the direction along the line forming the staff notation at different positions. A notehead display position setting unit that sets a display position of a symbol representing the type of the derived sound based on the display position of the notehead set by the notehead display position setting unit; Note-head display position setting means, and score display means for displaying the score by arranging the note head and a symbol representing the type of the derived sound according to the display positions set by the symbol display position setting means, respectively. A score display device, comprising: 2. The notehead display position setting means sets a display position in a direction along the line on a notehead for pitch designation of the stem tone, for indicating a pitch of a derivative sound of the stem tone. The musical score display device according to claim 1, wherein the musical score display device is set ahead of the note head in the performance progress. 3. The note head display position setting means, wherein the pitch represented by the pitch data obtained by the pitch data obtaining means includes a stem sound and a pitch of a derivative sound of the stem sound. To
The musical score display device according to claim 1, wherein a plurality of display positions of the note heads in a direction along the line are set, so that the note heads are displayed according to a predetermined classification. . 4. The notehead display position setting means includes a notehead for specifying a pitch of the stem and a notehead for specifying a pitch of a derivative of the stem, in a direction along the line. 3. The score display apparatus according to claim 1, wherein the interval is changed according to the number of the derived sounds. 5. A recording medium readable by an apparatus for displaying a musical score by arranging a symbol such as a notehead, a sharp symbol, or a modified symbol on a staff notation, wherein the pitch represents a pitch of a musical tone. A pitch data acquisition unit for acquiring data; a stem sound in a pitch represented by the pitch data acquired by the pitch data acquisition unit; A notehead display for setting a notehead used for pitch designation and a display position of a notehead used for pitch designation of a derivative sound of the stem sound in a direction along a line constituting the staff notation at different positions. Position setting means; symbol display position setting means for setting a display position of a symbol representing the type of the derived sound based on the note head display position set by the note head display position setting means; Setting means, and the symbol display position setting means. In accordance with the display position set respectively, said note heads, and a recording medium recording a program for realizing a score display device, a for displaying the arranged music symbols indicating the type of the derived sound.