JPS58123589A - Automatic musical score display - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] The present invention edits keyboard performances into musical scores in real time,
(referred to as the screen-1 lower display part of the RT display, etc.)
The present invention relates to an automatic musical score display device that displays musical scores.

Generally, when playing the keyboard while listening to a rhythm, the detailed timing of the played music does not accurately match the rhythm. For example, if you play consecutive quarter notes j~, the rhythm will be off by about a fraction of a beat to a few tenths of a beat, and if you play consecutive 16th notes quickly, the rhythm will be about 1/16th note out of step with the rhythm. Often played fast. One reason for this timing discrepancy is thought to be a delay in the human motor nerve between hearing the rhythm and pressing the keyboard.17 When playing consecutive rhythms, humans have to predict the rhythm that will come next. One possible cause is that this prediction deviates from the accurate rhythm timing. Furthermore, he is good at fingering on the keyboard.

Poor playing also greatly affects the rhythm.

Now, in many cases, the sounds that humans hear with their ears are not recognized as a 16th note or less, and there is no problem in modifying the displayed musical score as long as it is outside the detection limit of the human sense of rhythm. , -1-, 1: If a performance made with timing based on human fingering habits and predictions is displayed on the display based on the basic rhythm clock, it can be expressed with one quarter note, for example. This has the disadvantage that the display results in an unnatural and wasteful display in which sixteenth notes are connected or rests are inserted before and after the notes.

The present invention converts the length and timing of notes played outside the detection limits of the human rhythm sense into concise notes and rests and displays them. The display according to the present invention includes one note of a stacker toy and a note of the same scale with a tie, which allows a note and a rest to be expressed with one note, making it possible to express concisely. It is.

The rhythm played by humans can be expressed intuitively by the beat of [j2 to a is [:, l J) ]67, ---, and these are outside the human rhythm sense detection limit. By modifying it, you can limit the notes used and make the expression more concise.

Furthermore, if the fingering is unskilled, the timing of the rhythm of the performance may become distorted, but it is possible to simplify the expression by selecting the range of deviation according to the degree of skill.

In other words, a concise representation of a musical score marked with -1= is a representation using fewer notes and note-related symbols, thereby increasing the amount of information on the display screen and improving visibility. The present invention provides an automatic musical score display device that can display musical scores automatically.

Hereinafter, the present invention will be explained in detail using Examples.

An embodiment of an automatic musical score display device according to the present invention is shown in FIG. 1 is a keyboard used in an electronic organ, and 2 is a keyboard control section. The keyboard control unit 2 inputs a signal corresponding to the scale pressed on the keyboard 1, outputs data corresponding to the scale from the output terminal 2 (OUT2), and generates a signal that remains at a high level only while the key is pressed. Output terminal 1 (OUT1
') is output. The signals output from the above 0UT1 and 0UT2 are passed through the data selector 9 to the musical tone generator 10.
It is output as a musical tone. This "Una performance" is performed by inputting the basic clock of the tempo determined by the tempo volume 7 in the rhythm clock generation section 6.
The adder 11 adds the rhythm tones selected by the rhythm selection switch 8, the amplifier 12 increases the output by 1, and the speaker 13 outputs it as a performance with rhythm accompaniment.

In the tone length counting section 3, each human power is 1 (I'N1).

The keyboard press signal and scale data input from input 2 (IN2) are sent to T1. of the clock generator 6. Output from T2°T3, 11. I2. The - basic clock of one beat input through I3, the 4 clock at the beginning of one beat, and the clock at the beginning of one measure, the count value of beats, 1
Basic clock count value within a beat, i.e. timing information,
Furthermore, the tone length and scale data are divided and coded, and then written into the tone length data memory 4 in the order of performance.

In the normalization processing unit 14, the tone length data memory 4
Note limit switch 16
While reading the normalization conversion table determined by from the normalization data memory 16, normalize the timing so that it becomes a concise note expression, and output the normalized timing information, note length, and scale data from the DA3. do.

The note/rest determining unit 17 inputs the normalized data inputted from the normalization processing unit 14, timing information, note length, and scale data from INl, and converts the timing information and note length data into On the other hand, the note limit switch 16 has I:
The conversion table for notes and rests determined by death,
Musical note data, scale, and rest data are output from DA2. This data is stored in display data memory 19.

The musical score display control unit 20 reads the data for note 1 that was played before the latest note and can be displayed on the screen from the display data memory 19 via DAl, and displays a video signal obtained by converting the note into an image pattern to the CRT display 2.
1, and the score is displayed on the screen.

The control unit 22 is a circuit unit that performs the above-mentioned control, and controls modes such as an operation mode that only stores data during a performance, a mode that displays images while displaying the played song, and a series of operations for each processing unit. The control timing is controlled by CNT1 to CNT.
This is done via the Shingetsu line of No. 6. 23 is a selection switch for the above mode.

Below, the characteristic parts of this configuration, such as the tone length reduction number section 3° normalization processing section 14. The note rest determining section 17 will be explained in detail.

The next clock is inputted to the tone duration and number section 3 from the rhythm clock generation section 5.

the law of nature). (The frequency can be changed depending on the tempo volume.) C2: Clock signal for each beat (beat clock).

C3: The clock signal +3° at the beginning of each measure or the keyboard press signal input from INl is 9.

It is possible to convert into the following count values Ton, Toff, Cr, and cc using the basic clock of one beat.

Ton: Count value of basic clock C4 during the time the keyboard is pressed.

Toff: Count value of the basic clock C1 at the time when a key is released and the next key is pressed.

Cr: Count value of the beat clock c2 from the starting point of the performance to the moment when the current keyboard is pressed.

CC: Count value of basic clock C1 within the beat at the moment the key is pressed.

In reality, Toff is calculated from Cr, Cc, and Ton using the following equations (1) and (2), so these three tone lengths, de7, Cr, CcI, and Ton form the scale. The tone length data along with the pitch data representing the pitch are sequentially written into the tone length data memory 4 from the beginning of the performance.

Tt = (NewCr+NewCc)-(Ol
ld Cr+07! dcc)・・・・・・・・・・・・
(1) Toff = Tt −Ton −”
・-” (2) 1゜Here, Tt is the count value of the basic clock c1 during the period between one key press and the next key press, New Cr is the current Cr, and CX1d Cr is the previous key press. Cr at the time when New Cc is Cc at the moment
, (Md ec is C at the time the keyboard was pressed just before
It is c.

Cr, Cc, and Ton are the beat clock counter that is reset at the start of a performance, and the basic clock counter that is reset when the beat clock is pressed. It is counted by a basic clock counter that ends when it is released. Cc O”: The scale is 8 bits (0 to 2
56) Below, 16 bits for Cr and Ton (0-65
536) Each is expressed below.

The normalization processing unit 14 functions to limit the types of notes and rests to be displayed in order to reduce unnaturalness of the displayed musical score, depending on the skill level of the performance.

In this embodiment, the performance proficiency level is set as Parank for advanced players, B rank for intermediate players, and C rank for beginners of 117, -3. For each rank, the restricted note groups; chores and rests are as shown in Table 1. In Table 1, ○i
j: Permitted, - indicates prohibited. Specifically, as shown in Table 2, r(A, B
, C are expressed in bits and stored in the normalized data memory 15. Each actual count value from the tone length data memory 4 is converted into normalized data using this comparison table.

Margin below Table 1 Margin below 13,, 4 15,... In Table 2, the horizontal axis iI:] indicates the basic clock position within one beat, and the broken line indicates 01. d e c and all CCs within the interval shown by the solid line are normalized to 6I2 numbers. For example, in the case of C rank, C
Whatever the actual count 1 shift of c is, it is modified to CC=O, and as a result, it is limited to rl, notes, and only quadrupty notes on every other beat.

In the case of "B rank", it is 11, and the actual count value of Cc is 8~
CC=12 only when 19, otherwise 16 to Cc=O
The notes are then reduced to only eighth notes or quarter notes, respectively. 0 for parameters
Normalized data is given that differs depending on the value of live. This is to provide a restriction so that unnatural combinations of notes and rests do not occur when detailed expressions are enabled.

For example, if all parameters are normalized as in the case where QRd Cc=O, the CC value will be (0, 8, 12,) and so on.
When? -, 1, triplet, and sextuplet may create an unnatural expression, but here '1ζ-
1. I am crying over such expressions.

For example, when 0j2d ec=B, Cc's actual count 1st shift is 20 to 23, or when O to 2, C=
Cc is normalized to 0, and when Cc is 11 to 19, it is normalized to Cc=16. This means giving an expression using notes or rests with a pitch of % of one beat, such as triplet notes.

In the case of a note length of 1 beat or more or 1 measure or more, 011
, dCc-0, Cc is obtained with reference to clothing 2.

By normalizing as described above, it is possible to prevent the display of unnatural notes and rests due to timing deviations when playing the keyboard while listening to the rhythm as described above, and also to improve the skill level of the performer. By restricting the display symbols according to the following, it becomes possible to give the musical score expression intended by the performer.

Further, the normalized data memory 16 has 17 refillable pages that can be easily adjusted to suit the performer's preference.

Cc and beat count value Cr normalized in this way.

The tone length data consisting of the tone length ron and the 16th floor data are input to the note single note determination section 17 through the output DA3'i of the normalization processing section 14, and musical notes and rests are determined.

Note “O”: Determination of rest d1, note conversion data memory 1
Table 3 (A) to (S) showing the conversion table of parameters stored in bit representation in Table 4 (A) and (B) showing the conversion table of B rank. The selection of the conversion table is done by each conversion table in Table 6 shown below.
) Based on the Tt calculated by the formula, ties (slurs) in notes, rests, and score notation, stackers
Alternatively, normal notation is determined. In addition, in these 6 tables, A, which does not display rests, determines rests from ToffVC, which has the same length as each note, and then modifies + TE by determining the body note length. and T
The j" mark is determined by On. The procedure is as follows. That is, a, Toff are each person's number ktU
Search for the rest corresponding to the missing 11d large 11r1.

b. For the difference between the body note length of the searched rest and Toff, search all corresponding rests in the same step as a.

C. If there is no corresponding rest, end the rest search.

d. Next, from Ton, search for all notes corresponding to the maximum value that does not exceed the number in Table 6.

Then, I wonder which one to choose as the notation for the musical note: Depending on the decision of the rest, the length is reduced and the called Tt (Tt'
) and Ton, it is determined as follows.

(a) When Tt' -Ton, use slur notation.

Example: rr I will write a record.

page 19 Example: I″ Perform one-to notation.

Example: r.

By adopting this notation, unnatural rests can be omitted and the display can be made more concise.

Note that the A-rank and B-rank exchange tables shown in Tables 3 and 4 limit the next selected note or rest depending on the value of 0RdCc, but this is the same as in the case described in II. This is to prevent unnatural combinations of notes and rests from occurring.

Margin below Table 3 (b) Old When Cc = 6, page 21 () CH2d When Cc = 8) ORd
When ec=12 (e) ORd When ec=16 22/ ・Table 4 (a) When 0fld Cc=O (o) OQd ec==12 (7) When following table 5 on page 23, First, the corresponding rest is determined based on the calculated Toff data. Here, 24 (Toff〈48
Therefore, 24 is adopted as the note length, and the quarter rest [
] is searched. The quarter rest has been decided.''Tt'=48, Ton=30. Since Toff' is not present, the rest search ends. Next, in the note length, To
Since n satisfies the above-mentioned condition (q), it is written as m ≧ Y cart, and since 24 (Ton (36), half note [Δ,] is selected corresponding to staccato length A 1 #d 24, The length of this note is determined to be 'C1,>].

In the case of B and Palanque, this is normalized to 11 mi,
A dotted quarter rest cJ, ] is determined, followed by 'ft' = 3
6. From the relationship NewTon==Ton=30, normal notation is adopted as the musical note, and a dotted quarter note [,1,] is determined. As a result, it is converted to rl, i, ], which is a more detailed score expression than in the case of C rank. , Tt=72.Ton=30, Toff=4
2 becomes [)月5/:,>], which is an unnatural expression, but by normalizing the note length and body note length using the conversion tables in Tables 3, 4, and 5, it can be simplified. It can be expressed as

The note/rest determination unit 17 converts the notes determined as follows into note 1 representing the scale and note 1 including the slur, star cut, and normal divisions. Information consisting of note codes, if necessary, multiple pieces? At position l'L, if there is another rest, the rest code representing the rest is also output to the data selector 9 and the display data memory 19 in performance order.

The information from the note/rest determining section 17 is sent to the data selector 9.
By switching the information with the information from the keyboard control section 2 and sending it to the musical sound generation section 10, it is possible to monitor the musical score expressed concisely by this device through the speaker 13. On the other hand, the display memory 19 obtains display data corresponding to the information from the note/rest determining section 17,
The music score display control unit 20 converts it into an image pattern signal of notes and rests, and displays the staff staff pattern, the notes and rests at -1D.
Codes such as rest positions, notes/rests, slurs, staccato, bar breaks, etc. are obtained as image data, and c t<
It will be displayed on T21-.

Display examples of CRT 21 J: are shown in Figure 2 (to, (yen) and (q. The display results are shown in A above.

It is shown for each rank of B and C. C rank 26
When , is set, 4 j4 as shown in Figure 2 (q)
This is a simplified representation of only S notes, double notes, and whole notes. On the other hand, when the palanque is set, 1 and 2 (
As shown in a), 16th notes, 16th rests, or unnatural ties appear, indicating that the skill level of the performer has not reached palanque.

The C-rank display provides a concise expression for beginners, and it also allows the intervals between notes and rests to be narrowed, making it possible to increase the display information Y1 (fA') on the screen. There are advantages.

As is clear from the above description, the automatic musical note display device according to the present invention is for displaying normalized note length information by standardizing the note length code generated by keyboard playing. It is possible to prevent unnatural displays caused by timing deviations in performance and create a natural musical score.

Further, by limiting the timing of pressing the keyboard and the selection of notes and rests depending on the skill level of the player, it is possible to create a musical score that the player intends.

272 pieces.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an automatic musical score display device according to an embodiment of the present invention, and FIG. 2 is a diagram showing a display example of C1tT. 1...keyboard, 2...keyboard control section, 3...
...Tone length counting unit, 4...---One note length data memory, 5...Clock generation section, 6...Rhythm sound generation section, 14...・・Normalization processing unit, 15・
...11 Normalized data memory, 17...
Note/rest determination section, 18... Note/rest conversion data memory, 19... Display data memory, 20
...Musical score display control section, 21...--CftT
Display, 22... Control # Department, 23...
-...Mode changeover switch.

Claims (5)

[Claims] (1) A keyboard section for performance, a code conversion means for converting scale information and tone length information obtained by playing with the keyboard section into a chord signal, and a clock generation means for generating a clock signal; means for storing the tone length code and scale code converted by the code conversion means; normalization means for normalizing the tone length code from the storage means and correcting the lengths of notes and rests; An automatic musical score display device comprising: display means for generating and displaying musical score information from the note length code and the scale code. (2) The normalization means includes a normalization processing means that has a normalization data table that normalizes the timing at which a key is pressed, and a note/rest conversion table that normalizes the lengths of notes and rests.・An automatic musical score display device according to claim 1, which comprises a rest determining means. (3) The normalization processing means corrects the timing at which the keyboard is pressed by the timing of one beat of the rhythm generated by the clock generation means or an integer fraction thereof. The automatic musical score display device described in Section 1. (4) Note/rest determination means: Based on the note length code, the keyboard is divided into normal notes, stacker 1/listening notes, tied notes, and rests depending on the period when the key is pressed and released. 4. An automatic musical score display device according to claim 2, further comprising means for selecting corresponding notes and rests from a note/rest conversion table. (5) The normalization means has a plurality of different normalization data tables and note/rest conversion tables f, and also has means for limiting the normalization of the timing at which notes/rests and keys are pressed 1-1 The musical score automatic display device according to claim 2, wherein one table is selected from the plurality of tables by the limiting means.