JPS5913294A - Display of music score - 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 relates to a musical score display method for automatically displaying a musical score on a display screen such as a CRT (cathode ray tube) based on a musical performance or performance data stored in a storage medium.

As a conventional musical score display device, one that displays musical scores in one row on a CR7 screen is known. However, the amount of displayed musical scores is small in the single-stage musical score display, and the displayed musical scores are erased in a short period of time, which is extremely inconvenient when considering the process of performance.

Therefore, the present invention provides a musical score display method that makes it possible to display a musical score convenient for examining the performance process, and is characterized by displaying the musical score over a plurality of stages on the display screen.

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of a musical score display device to which the method according to the present invention is applied, and the musical score display device shown in this figure automatically displays the process of performance on the piano 1 as a musical score.

That is, the piano 1 is provided with key switches for detecting key operations in response to each key (@t), and the output of each key switch is supplied to the musical instrument interface 2, respectively. The musical instrument interface 2 detects the on/off state of each key switch by scanning the output of each key switch of the piano l at a constant cycle, and detects the key code of the key in the on state and the on/off time of the same key. (hereinafter referred to as note length data) is sequentially output to the note selection processing circuit 3.

The parameter setting device 4 is for adjusting the hair (...major key, A minor key, etc.)
, to set the tempo (for example, the time of a quarter note) and one beat (4/4 time signature, etc.), and the hair tone data, tempo data, and time signature data that correspond to the set name, tempo, and time signature, respectively. It is output to the note selection processing circuit 3.

The note selection processing circuit 3 detects the pitch and type of note to be displayed (quarter note, eighth note, etc.) based on the key code and note length data supplied from the musical instrument interface 2, and also detects the pitch and type of note to be displayed (quarter note, eighth note, etc.). Types of rests (quarter rest, 8
minute rests, etc.), and based on this detection result,
The slot block 8 shown in FIG.
It is created in the form B and output to the symbol assembly processing circuit 5. To explain further below, for example, when the musical score shown in FIG. 3 is played on the piano 1, the musical score display device shown in FIG. 1 can display this musical score in substantially the same form. The note selection processing circuit 3 creates data for displaying this musical instrument in the form of a slot block date B for each song, as shown in FIG. This shows the basic configuration of the slot width, TYPIli data, length data, and key code, and the TYP]Ii data, length data, and key code. Block 8BB consisting of
slot) 8m, 8. . . . are provided corresponding to each note or rest in . For example, slot s
.

In the case of , there are two blocks EIBB corresponding to the two notes.
and a slot 8. In this case, one block EBB is provided. In this slot block 8B, the slot width data refers to each slot)8. ,S,・
This is data that indicates the width of the piece (width when displayed). For example, the slot width data for slot s is the note G shown in Figure 3.
4 (the note of the fourth G4 note in the fourth octave) and six pairs of data. TYPE data is its block 8B
This is data indicating whether what is represented by B is a note or a rest; rxJ in the case of a note.

In the case of a rest, "0" is written. The length data is data indicating the length of the note (or rest) represented by the block BBB. Further, the key code is the key code of the note represented by the block 8BB, and is "0" when the block SBB represents a rest.

Note that FIG. 4 shows a slot block 8B-1 created corresponding to slot S. In this figure, LN4
, LN2 are note length codes corresponding to quarter note, half note, and each length, respectively. .

The symbol assembly processing circuit 5 has display blocks HB (see FIG. 5) for displaying notes or rests corresponding to each slot boot block SB supplied from the note selection processing circuit 3.
is created and output to the note display processing circuit 6. ζ Here, the display block HB is composed of up to tJ-4 bytes as shown in FIG. 5, and the first to fourth bytes each contain the slot width, :I: coordinates.

The y coordinate and tTD8 code are written. Further, a block HBB consisting of the second to fourth bytes is provided corresponding to block 8BB of the slot block BB. In this display block HB, the slot width of the slot block BB is directly written as the slot width. Also,
The X coordinate is slot 81+8! shown in FIG.・・・
Data indicating the position of the note (rest) in the X direction (horizontal direction) in ..., that is, slot 81t''!...
Data corresponding to the distance from the left edge of ... to the note (rest) is written. The y coordinate is slot s, day 1.

......, the position in the y direction within, that is, the third
Data indicating the distance from the G4 sound line shown in the figure is written. This position in the y direction is determined by the key code in the block SBB of the slot block 8B in the case of a musical note, and is a predetermined fixed position in the case of a rest. Further, as the UDS code, a UDEI code indicating the type of note or rest is written. This UDS code is determined based on the length data in block EIBB of slot block 8B. For example, if the TYPln data of block sBB is "1" (musical note) and the length data is L
In the case of N2, the UDS code corresponding to the half note is inserted into the display block HB.

For example, when the musical score shown in FIG. 8B is converted into a display block HB in the symbol assembly processing circuit 5 and output to the note display processing circuit 6.

The musical note display processing circuit 6 converts the x,

The memory 7 is a memory in which all notes and rest patterns are stored in advance by vectors. In this case, for example, a quarter note is represented by the vector v1+Vl・
. . . are stored by the coordinates of each start point and end point, and the half note is stored by the vectors v, l * shown in the same figure.
The coordinates of the start and end points of v, t, . . . are stored. And these patterns beam DB
Read based on code.

The display device 8 includes a CRT (cathode ray tube) display device and a control circuit, and displays double staffs in three rows on the CR1 screen, for example, as shown in FIG. In addition, in this figure, each straight line L1+Lt*1m is G
It is a four-tone line. The display device 8 also reads out a pattern of notes (or rests) from the memory 7 based on the supplied UDS code, and supplies the coordinates of the start and end points of each vector constituting the read pattern from the note display processing circuit 6. The coordinates are transformed based on the X and Y coordinates, and notes (rests) are sequentially displayed on the CR1 screen. The displayed notes (rests) are continuously displayed until a deletion command is supplied from the note display circuit 6.

Next, the data processing process in note display processing path 6 will be explained in detail with reference to the flowchart shown in FIG.

For example, when the musical score shown in Figure 3 is displayed on both screens of the display device 8, the musical score display device displays the slots shown in Figure 3 on the screen. . . . Corresponding to the virtual display slot sl'+81'・river- (see Fig. 7)
Set this display slot s, ', s, '...
Each note (rest) in slot s, s, . . . is displayed within .

That is, when the display block HB corresponding to the first slot B is supplied to the note display processing circuit 6, this display block HB is detected by the stellar 7"8P shown in FIG. 8, and the process proceeds to step BPt. .step sp,
Then, the slot width of display block HB is display slot B.
This is converted into slot width data SLD indicating the slot width (width on the screen) of 11. Next, in step BP, the data in the register xRIeG (see FIG. 9) and the slot width data 8LD are added, and it is then determined whether this result is greater than the coordinate xe. Here, the register XIIIG is provided in advance in the note display processing circuit 6, and the coordinate XO is set in the initial state. In addition, the coordinate xe is the X coordinate of the rightmost end of the staff on the CR1 screen shown in FIG. 7 (the X coordinate of the virtual line N), and the coordinate (FIG. 7).The meaning of the process in step 8P3 is to determine whether all musical notes in one row of the screen have been displayed.

In this case, the judgment result in step 8F is "
"NO", therefore, proceed to step sp. In step sP4, cRTI [111
The X coordinate of the position on the surface is calculated. That is, the X coordinate in block HBB of display block HB is added to the data in register Xnxa (coordinate XO in the case of Jin). Then, proceed to step SP. In step SP, the Y coordinate of the position on the screen where the musical note (rest) represented by block HBB is to be displayed is calculated. That is, the data in the register Yumc (FIG. 9) provided in advance in the note display processing circuit 6 and the X coordinate in the block EBB are added. By the way, register YRIG is C
Y seat 1 of the G4 sound line in the upper row on the R1 screen! Yo or the middle 04 sound line.

, or the Y coordinate Y of the lower G4 note aLs, and in the initial state, the coordinate Y0 is stored. Next, when the process proceeds to step 8pH, the X and Y coordinates calculated in steps SP, , and SP are output to the display device 8 together with the UD8 code in block HBB. As a result, block HBB of display block HB is placed in display slot B of the CRT screen.
The musical note (rest) represented by is displayed. In addition,
If there are multiple blocks HBB within the display block HB, the X and Y coordinates of each block HBB are calculated.

Next, if you proceed to step 8F, the next display slot date,
The left end X coordinate zgbo'r of ' is calculated.

Straw, data in register Xttma (coordinates X.)
Slot m data 8LD calculated in step 1i1Pt is added to . Next, when the process advances to step SPs, the coordinates xsLote calculated in step BP are folded into the register XRIIG. Then, the process returns to step 8P again.

The above is the process by which musical notes are displayed based on the first display block HB. Thereafter, each time the display block HB is supplied, the above-described steps BP, . Then, when a certain display block HB (referred to as display block HB&) is supplied, step s
When the judgment result of 'p' becomes 'rygs', step BP
, proceed to . In step 8P, the display stage register HRI (1 (FIG. 9) provided in the note display processing circuit 6
It is determined whether the content of is l'-OJ, rlJ, or J2J. Here, the display stage register Hnza is a register indicating the display stage in which musical score is currently displayed, and is reset in the initial state. Therefore, in this case, the content of the display stage register Hnma is "0" and the process proceeds to step S:Pto. Steps Pso
Then, the Y coordinate Y of the middle G4 sound ray L1 is the register YRmG.
written to. Thereby, calculation of the Y coordinate in step 8P is performed based on the coordinate Y. Next, when the process advances to step sp, the register HRIG is incremented, and as a result, the contents of the register HRIG become "1".
”. Note that this "l" means that the genealogy will be displayed in the middle row from now on. Next, proceeding to step S Ptt, the coordinate X. is written to register XRIG. Next, the aforementioned steps BP4 to BP8P are executed, whereby the musical note (rest) corresponding to the display block HB& is displayed in the leftmost display slot in the middle of the screen. From then on,
Similarly to the case described above, each time a display block HB is supplied, musical notes (rests) are sequentially displayed in the middle of the screen.

Then, when a certain display block HBt+ is supplied, the judgment result in step 8P becomes "ryms" again.
Proceed to step BP. At this point, the musical score is displayed over the entire middle section. Then, in the case of Jin, the content of register HRIG is "l", so step B
Proceed to P.3. In step 8P, the coordinate Y is written into the register YRIG. Thereby, calculation of the Y coordinate in step 8P is performed based on the coordinate Y.

Next, the register Hi is set by the process of step 8P, .
mo's content power becomes "2", and then step BP1.
The coordinate x0 is written into the register X*** by the process. Next, steps BP4 to SP.

is executed, and as a result, a note (rest) corresponding to display block HBb is displayed in the leftmost display slot at the bottom of the screen. Thereafter, notes (rests) are sequentially displayed at the bottom of the screen in the same way as in the case described above.

Then, when a certain display block HB6 is supplied and the determination result in step 8P3 becomes "Yes" again (that is, when the display at the bottom of the screen becomes a pull state), the process proceeds to step SP.

In this case, the content of register HFIIG is "2",
Therefore, the process advances to step 8P14. Step SP, 4
Then, the coordinate Y0 is written into the register YRIG. As a result, the calculation of the Y coordinate in step 8P is performed at the location 9.
1 Y o. Next step BY,
, the register H*ma is reset and its contents become "0". Next, when the process advances to step pp, a screen erase command is output to the display device [8]. As a result, all the musical scores displayed on the display screen of the display device 8 are erased. Next step sr1. Proceeding to , the coordinate x0 is folded into the register X RIG. Then, step S
P,~SF.

is executed, and as a result, a note (rest) corresponding to display block HBa is displayed in the leftmost display slot at the top of the screen. Thereafter, the musical score in the upper row is displayed again.

In this way, in the genealogy display device shown in FIG. 1, the J@Next musical score is displayed from the top to the middle and bottom of the display screen.
When the musical score is displayed over the entire display area of the screen, all the musical scores on the display image are erased, and thereafter, the musical scores are displayed again sequentially from the top.

As explained above, according to the present invention, the genealogy is displayed in multiple stages on the display screen, so a large number of musical scores can be displayed on the screen, which is extremely convenient for examining the performance process. .

[Brief explanation of the drawing]

2 is a diagram showing the configuration of the slot block 8B, FIG. 3 is a diagram showing an example of a musical score, FIG. 4 is a diagram showing a specific example of the slot block 8B, and FIG. 5 is a diagram showing the configuration of the display block HB.
, FIG. 6 is a diagram showing the vectors composing the note pattern, FIG. 7 is a schematic diagram of the musical score displayed on the screen of the display device 8 in FIG. 1, and FIG. A flowchart for explaining the data processing process of the musical note display processing circuit 6, and FIG. 9 is a diagram showing registers provided in the musical note display processing circuit 6. 6... Musical note display processing circuit, 8... Display device. Applicant: Nippon Musical Instruments Manufacturing Co., Ltd. Figure 5 Figure 6 Eyebrow Figure 7 Figure 9 White = ]

Claims (1)

[Claims] In the musical score display method of displaying musical notation on a display screen based on supplied musical tone information, the musical score is displayed sequentially over a plurality of stages from the top of the display screen, and the musical score is displayed over the entire display area of the display screen. A musical score display method, characterized in that when the musical score is displayed on the display screen, the musical score displayed on the display screen is erased, and new musical scores are sequentially displayed from the top of the display screen.