JPH085246B2 - Sheet music composition device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a score block creating device for inputting score data and creating a score block based on the input score data, and in particular, The present invention relates to a musical composition block making apparatus capable of automatically connecting continuous 8th notes, 16th notes, and other flag notes with a beam.

<Problems to be Solved by Prior Art and Invention> Various attempts have hitherto been made to develop a score block making device for inputting score data and creating a score block based on the inputted score data. Came. As a result, a personal computer-type device for creating musical scores was developed, and moreover, by connecting an output device for making a block copy to a personal computer,
It was an easy way to create a composition.

Here, a score created with reference to the attached drawings will be described.

The score created by the conventional score block making device is
All notes shown in Figure 11 are flagged. However, in the music score, the notes must be originally drawn with a beam as theoretically shown in FIG. In addition, there are also detailed regulations on the tilted shape of the beam and the vertical position. For example, the beam shown in FIG. 13 is not correct because the tilt is bad, the position is bad, and the direction is opposite.

On the other hand, as shown in FIG. 14, it may be necessary to draw a flag, and in this case, it is absolutely not drawn as shown in FIG.

As for the method of instructing whether to draw such a 16th note, a 32nd note, etc. with a flag or a beam, the conventional plate-making apparatus using a computer uses one of the following methods. .

In other words, as shown in FIG.
After inputting all the musical notes for the musical composition, the operator designates one musical note to be a beam one by one.

Alternatively, before inputting a note, information about which note should be a beam and which note should be input in advance. For example, in the example of FIG. 12, the information is that "the 1st and 2nd, 3rd and 4th, 5th and 6th notes of the first measure are connected by a beam".

Regardless of which of the above methods was adopted, a lot of time was spent in creating the correct score. Moreover, the shape (tilt, position, etc.) of the beam drawn by the conventional technique is not satisfactory.

<Means for Solving Problems> In order to solve the problems as described above, the musical composition block making apparatus according to the present invention is a sound for judging a note value based on the note information inputted to the controlling means. Value judging means, beam timing judging means for judging the beam timing from the music and time signature being input, and the note value information before and after the inputted note, and the note value, pitch and number of the note group to be the beam There is provided a musical score block making device characterized by having a beam shape determining means for determining a beam shape and a beam display means for displaying the beam on a score displayed on a screen.

<Operation> According to the present invention, a great amount of time is required when correcting the flag of a conventionally created score into a beam, or when instructing which notes should be prosperous in the beam in advance. In order to solve the problem, we created a system that automatically determines which notes are prominent in the beam during the input of the musical notation data, and also displays the correct shape on the screen immediately. The data input work can be shortened and the beam shape can be unified into the correct shape.

<Embodiment> Next, an embodiment of the musical composition block making apparatus according to the present invention will be described with reference to the drawings. FIG. 1 is a schematic diagram of a musical composition block making apparatus according to the present invention. 1. is a piano that has a diatonic key group and a chromatic key group that can press multiple notes at the same time to input note data of a manuscript, and can also press notes with accidentals. Reference numeral 2 denotes a keyboard, which has a plurality of function keys and alphanumeric keys, and is a function keyboard for inputting coded lyrics and the like. 3 is a memory for temporarily storing the musical score data input from the piano keypad and the function keyboard, and the beam timing is determined based on the note information input from the piano keyboard and the function keyboard to determine the shape of the beam, Is a personal computer having a control unit for displaying.

Reference numeral 4 is a display unit for displaying the created score on the screen. 5
Is a printer that prints a block copy of the displayed score.

Next, the principle of automatic beam creation of the musical composition block making apparatus according to the present invention will be described with reference to the drawings. Second
The figure shows the numerical value of each note value.

Here, assuming that the basic unit of the time signature of the music is B and the note value of each input note is b, it is a necessary condition for a beam to satisfy the following equation.

N is an arbitrary integer, and n is the number of notes from the beginning of the bar. It is also a necessary condition that the immediately preceding sound has a flag. Satisfying these two requirements at the same time is a necessary and sufficient condition for forming a beam.

This will be described in more detail with reference to FIGS. 3 to 5.

In FIG. 3, since it is a quartet time tune, it means four quarter beats within one measure. Therefore, the quarter note becomes the basic unit B of the equation (1), and B = 16 from FIG. At this point, the total note value is three 16th notes, so b = 4 × 3 = 12. 16 in this state as shown in Fig. 4.
Since another quarter note comes in, b = 12 + 4 = 1
6. Therefore, if N = 1, the equal sign in the above equation (1) is established. Of course, the last sound is flagged.

Therefore, when the note information is input as shown in FIG. 4, it means that the necessary and sufficient conditions for forming a beam are satisfied, and as shown in FIG. 5, an instruction is given to draw a beam.

 Next, the principle of beam shape calculation will be described.

The shape of the beam is made up of three elements: inclination (I), direction (D), and position (P).

Since the slope (I) has a strong visual sensory factor and is not suitable for the determination by the calculation formula, it is determined by the five kinds of correspondence tables as shown in FIG. 6 created by using the AI method. It The direction (D) has two patterns as shown in FIG.
From the coordinate values as shown in the figure, one that satisfies the following formula is determined.

n is the number of noteheads under the beam, and p is the vertical position of the noteheads. Considering this example in FIG. 8, from the four note information Therefore, the beam is connected downward because it corresponds to D = 1.

The position (P) is calculated so that the minimum value of the distance from the note head to the beam of each note is 28 in the coordinates of FIG.

A calculation process for automatically creating a beam based on the above principle will be described with reference to the flowchart of FIG. First, the operator inputs note information from the first keyboard and the second keyboard (SI). Next, the note number of the inputted musical notation information is determined based on FIG. 2 and stored (S
2). It is judged whether or not the determined tone value is smaller than 16 (S3). When the note value is less than 16, eighth notes,
It can be seen that the notes are flag notes such as 16th notes.

Therefore, the note information is displayed as a flag in the next step (S4). Next, note that the note information displayed by the flag is the time signature of the song being input, the calculation formula (1) as described above from the note value information before and after the input note, and that the immediately preceding note is the flag. The beam timing is determined based on whether or not the necessary and sufficient conditions are satisfied (S5).

Next, the beam shape is calculated based on the three elements of the inclination (I), the direction (D), and the position (P) as described above (S
6) Based on the calculation result, the musical note of the flag is displayed as a beam (S7), and the process ends.

<Effect> According to the present invention, a problem that a large amount of time is required when correcting a flag of a conventionally created musical notation into a beam or instructing which notes should be connected by the beam in advance is required. To solve this problem, we created a system that automatically determines which notes should be connected by a beam during input of score data, and also displays the correct shape and instantly on the screen. In addition, the beam shape can be unified into a correct shape.

[Brief description of drawings]

FIG. 1 shows an embodiment of a musical composition block making apparatus according to the present invention,
Figure 2 shows the numerical value of the note value of each note.
9 to 9 are diagrams for explaining the principle of calculation of automatic beam generation, FIG. 10 is a flowchart of calculation processing performed by the controller, and FIGS. 11 to 15 are diagrams for explaining conventional score generation. It is a figure. 1 ... First keyboard means 2 ... Second keyboard means 4 ... Music score display section

Claims (1)

[Claims] 1. A first musical keyboard means comprising a diatonic key group and a chromatic key group capable of pressing a plurality of notes at the same time and further pressing a note with an accidental sign. Second music keyboard means for inputting musical score data, which has function keys and alphanumeric keys, and is connected to the first and second music keyboard means, and is input from the first and second keyboard means. Memory means for storing the score data, a control means for performing a predetermined calculation on the score data stored in the memory means, and creating a score based on the calculation result,
In a musical score block making apparatus having a display unit for displaying a score created on the screen based on the control unit and an output unit for creating a block copy of the displayed musical score, the control unit has input note information. Note value judgment means for judging the note value based on Sound value of
A musical score block making apparatus comprising: a beam shape determining unit that determines a beam shape based on a pitch and a number; and a beam display unit that displays the beam on the score displayed on the screen.