JPS58102990A - Musical score display unit - 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 device that sequentially displays musical scores using a liquid crystal display or the like, and is particularly suitable for installing on an operating panel of a musical instrument and sequentially displaying musical scores with a limited number of measures. SUMMARY OF THE INVENTION An object of the present invention is to provide a musical score display device capable of displaying a musical score equivalent to a normal musical score and suitable for performing while viewing a displayed musical score. According to this invention, the display information storage means includes a score information storage means that stores score information in advance, a display means capable of displaying a plurality of measures, a plurality of storage sections corresponding to display measure positions of the display means, an information transfer control means for transferring information, and the information transfer control means transfers the musical score information of the plurality of small parts from the musical score information storage means to the storage section corresponding to the measure display position of the measure according to the season when the musical score display starts. death,
Thereafter, according to the progress of the music, the musical score information of a predetermined small portion is transferred from the musical score information storage means to the storage section corresponding to the measure display position of the measure to which the musical score information belongs, so that the measured measures before and after the measure to be played are 17 so that it is displayed in the same position as the normal musical score. The present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a block diagram showing an embodiment of an electronic musical instrument having a musical score display device according to the present invention. In response to a pressed key, the keyboard 1 generates key information indicating the pressed key and a 1-key-on signal KON indicating the pressed state of the key corresponding to this key information. Note that key information #' is pitch information indicating one pitch, and the key-on signal KONii is "1" at a binary level when the key is pressed.
This is the signal. Musical tone forming circuit 2Fi forms a musical blind signal based on the pitch information generated from the keyboard 1 and the key-on signal KONK

[7
, this signal is applied to the speaker 4ti via the amplifier 3 (1, tesubi.keyboard 4. A tempo clock TCL of the corresponding frequency is generated [7, this tempo clock TC-Lij is counted by the tempo counter 6, and output as an address signal for the pattern memory 7. Also, every time the tempo counter 6 counts one bar, The pattern memory 7 is composed of a read-only memory that stores rhythm patterns corresponding to various rhythms, and the rhythm to be read out corresponds to the rhythm selected by a rhythm selection switch (not shown). A pattern is specified, and a rhythm pattern signal RP corresponding to the rhythm pattern is read out according to the address signal output from the tempo counter 6. Note that the start signal ST ("1"), which will be described later in pattern memory 7#'i, is enabled. It becomes operable only when the signal is applied to the terminal KN.The rhythm pattern read from the pattern memory 7, the -on signal RP, is applied to the rhythm sound source circuit 8.The rhythm sound source circuit 8#'i, the rhythm pattern signal RPK Accordingly, a rhythm sound signal indicating various rhythm instrument sounds is generated, and this signal is applied to the speaker 4 via the amplifier 3 to be emitted as a rhythm sound.On the other hand, the operating state of the musical score display recording mode/playback mode switch 9 is The display mode is selected according to the following. First, we will explain the case where the changeover switch 9 is turned on (and later, the stat switch 10 is turned on. In this case,
The mode signal R/P generated from the selector switch 9 is 1”
Therefore, the recording mode is set, and this signal R/P (“1
”) are the performance recording memo January 5, the recording mode data transfer control circuit 16, and the set/lid 17, 18, 19.
, 20 and a fourth memory 21. It is added to the third memory 22, the second memory n, and the first memory 24. When the start switch 10 is turned on, the start switch 10 outputs a start signal ST ("loo"), and the differentiating circuit 11 that takes the differential of the rising edge of this start signal ST outputs ST as a start pulse. Note that the start signal 5TFi is applied to the enable terminal EN of the pattern memory 7 for automatic rhythm performance described above, and the start pulse Δ5TFi is used to set the initial state of each circuit. High information and key-on signal KON
When the key-on signal KONFi is generated, it is applied to the code length detection circuit P. The note length detection circuit 12 has a tempo clock TCL applied from the tempo oscillator 5 to another input.
Note length data is generated by counting the tempo clock TCL added to the key-on time, and note length data of a rest is generated by counting the tempo clock TCL added to the key-off time. Note that this note length detection circuit 12 generates note length data and also generates a note writing pulse signal nP. Further, the note length detection circuit 12 is configured to correct the count value when the count value includes an error, and generate note length data corresponding to the corrected count value. In other words, when the regular count value corresponding to a quarter note is, for example, 32, the actual count value is (9) or the note length data corresponding to the regular count value even if it does not match the regular count value. is now output. Note length data generated from the note length detection circuit 12 is applied to a note rest code conversion circuit 13 and a bar end detection circuit 14. Note rest code conversion circuit 13ti Outputs a note rest code indicating a predetermined note and rest based on input note length data, and plays this note rest code together with pitch information generated from keyboard l. Add to record memo January 5 and A input of selector 17. In addition, the measure end detection circuit 14
has an accumulator, which sequentially accumulates the input note length data based on the generation of the note writing pulse signal np, and when a measure length set in advance by a measure length setter (not shown) is reached, a measure is recorded. Pulse mp! This pulse mp2 is transmitted to the performance recording memory 15 and the recording mode data transfer control circuit 16.
Add to. The performance recording memory 15 is a mode signal-1iJ R/P ("
1") and start pulse △8T, the recording mode is set to record note data consisting of pitch information, note rest code, and measure pulse from a predetermined address, and when note length detection circuit 12 detects note length. Every time the output note writing pulse signal np is added, the - note rest code and pitch information from the keyboard are read from the conversion circuit 13,
Further, when a bar pulse MP is output from the bar end detection circuit 14, the pulse is read as bar information. Also, since the mode signal R/P (1”) is applied to the A input select terminal SA, the selector 17 selects the note rest code and pitch information added to the A input, and stores them in the fourth memory 21. The fourth memo +321 reads the note rest code and pitch information that are input every time the note writing pulse signal np is applied, as in the performance record memo January 5.The recording mode data transfer control circuit 16 It controls the data transfer between the fourth memory 21, third memory 22, second memory n, and first memory 24 that constitute the storage means, and when the bar pulse mpl is input, the signals RTI, RT2, RT3, . Generate RT4. 1st
Memory 24 is cleared by signal RTI and signal RT2
The information in the second memory n is read by the signal RT2, the second memory is cleared by the signal RT2, and the information in the third memory 22 is read by the signal RT3.
It is cleared by T3, information in the fourth memory 21 is read by signal RT4, and cleared by fourth memory IJ 21 ti signal RT4. As described above, the fourth memory 21Kti reads the note rest code and pitch information supplied via the selector 17 every time the note write pulse signal np is applied. In addition, 4th memo IJ 21, 3rd memo
The memory n, the second memory and the first memory 24 are cleared in advance by the start pulse ΔST. Also,
Similar to the selector 17, the selectors 1g, 19, and 20 select the A input because the mode signal R/P ("l") is applied to the A input select terminal SA. The display control circuit 5 reads the note rest code and pitch information stored in the fourth memory 21, the third memory n, the second memory n, and the first memory, respectively, and applies the note rest code to the read note rest code. Based on this, dot information corresponding to predetermined notes and rests is output, and the position of the dot information corresponding to the notes on the staff is controlled based on the pitch information read out at the same time, and control including this dot information is performed. The signal is output to the display 26. Vertical lines such as a staff, a treble clef, a bar line, and a final line are printed in advance on the display surface of the display, and the musical score is displayed on a liquid crystal display based on the control signal. Note that the measures (su, measure (2), measure (3), and measure (4) divided by vertical lines are the first memory 24, the second memory n, the third memory 22, and the fourth memory 21, respectively.
Display notes and rests that correspond to the information stored in . Figure 2 shows how the musical score is displayed on the display 26 in this recording mode.As is clear from the figure, in measure (4), the notes corresponding to the notes played on the keyboard are They are displayed sequentially, and in other measures, the notes displayed in the adjacent measure on the right are shifted and displayed every time one measure ends. Here, when the start switch 10 is turned off, the start signal ST becomes ``0''. As a result, the pattern memory 7 becomes inoperable and the automatic rhythm performance is stopped, but the recording and display of the musical score corresponding to the music played on the keyboard continues. Next, a case will be described in which the changeover switch 9 is turned off and then the start switch 10 is turned on. In this case, the mode signal R/
Since P becomes "0", the mode is set to playback, and this signal R/
P ("0") is applied to the performance recording memory 15, selectors 17, 18, 19, 20, fourth memory 21, third memory n1, second memory phantom, first memory, and playback mode data transfer control circuit 27, respectively. . That is, the performance recording memory 15 receives the mode signal R/P(''
01) allows you to read out the musical score data that has already been recorded, including note rest data, pitch information, and measure information.
Selectors 17, 18, 19, 20 receive mode signal R
/P ("0") is applied to the A input select terminal SA, so that the B input is selected, and the reproduction mode data transfer control circuit n outputs the mode signal R/p ("O").
) is enabled. When the start switch is turned on in this state, a start signal ST (“1”) is applied from the start switch 10 to the enable terminal EN of the pattern memory 7, and a start signal ζ ΔS'l! from the differentiating circuit 11 is applied. Performance recording memory 1
5, 4th memory 21, 3rd memory 1] 22, 2nd memory n
, is added to the first memory cell, tempo counter 6, and bar counter n. The performance recording memory 15 outputs musical score data for two measures from the beginning of the musical score to the playback mode data transfer control circuit 27 in response to the input of 87 to the start signal ζ, and also outputs the musical score data for two measures from the beginning of the musical score to the playback mode data transfer control circuit 27 via the B input of each selector 17 to 2o. fourth memory 21,
It is output to the third memory n, the second memory 1J23, and the first memory 24 in parallel. Further, the tempo counter 6 and measure counter n reset their count values to 0 when the start value ΔST is applied to the reset terminal R.
5, the fourth memory 21, the third memo 1] 22, the second memory, and the first memory 24. It controls the data transfer between the memories 5, 4th memory 21, 3rd memo 1] 22, the second memory, and the first memory 24, and sends a read command signal based on the count value added from the measure counter A. The RO is output to the performance record memory 15, and the score data is stored in the fourth memory 21, the third memory 22, the second memory n, or the first memory based on the score data added from the performance record memo January 5. Signals PTI, PT2 . indicating whether to transfer to memory. PT3. P
Output T4. Note that this playback mode data transfer control circuit n outputs a signal PTI at the start of the playback mode, and thereafter outputs a signal PTI→PT2→PT3 every time measure information is detected from the musical score data added from the performance record memo Q15. →P
The signals are output sequentially as shown in T4→PTI→... Also, the signal PTI. PT2. PT3. PT4ti 1st memo +324 each
, second memory n, third memory n and fourth memo Q 21
In addition, when each memory is placed in a playback mode, input music data can be read only when the above-mentioned signal is input. Therefore, at the start of the playback mode, the start value (lus ΔS
When two bars of score data are output from the performance recording memory 15 by T, the score data corresponding to the first bar of this score data is stored in the first memory, and the score data corresponding to the next bar is stored in the first memory. 2 is read into memory. On the other hand, after being reset by the start pulse ΔST, the tempo counter 6 receives the tempo clock TCL for one measure.
Every time the bar pulse m p 1 is counted, a bar pulse m p 1 is output to the bar counter edict. The measure counter counts the measure pulses mp1 and outputs this count value to the reproduction mode data transfer control circuit 27. The play mode data transfer control circuit n sends a read command signal R every time an odd count value is input from the measure counter name.
O is output to the performance recording memory 15, and the performance recording memory 15
reads musical score data for two bars each time the read command signal RQ is input. Therefore, the performance recording memory 15 receives the start pulse S.
T reads the musical score data of the 11th and 2nd measures, and then after the musical performance ends for 1 measure, the 3rd and 4th measures, after the 3rd measure, the 5th and 6th measures, and after the 5th measure, the 7th and 8th measures.
Read out the musical score data of a measure. Furthermore, these musical score data are transmitted through the output signal p'r of the playback mode data transfer control circuit n.
1, p'r2°PT3. 1st, 2nd by PT4
Musical score data for the measures are stored in the first memory and second memo Q 23, respectively, musical score data for the third and fourth measures are stored in the third memory n and fourth memory 21, respectively, and musical score data for the fifth and sixth measures are stored in the third memory n and fourth memory 21, respectively. Musical score data for the seventh and eighth bars are read into the first memory 24 and second memo IJ 23, and into the third memory 22 and fourth memory 21, respectively. FIG. 3 shows the manner in which the musical score is displayed on the display in this reproduction mode. Note that the numbers written in measures (1) to (4) at predetermined positions divided by vertical lines indicate the measure numbers of the music to be played, and the display of notes, etc. in each measure has been omitted. . As is clear from the figure, the score with the measure number (4n-3) is displayed in measure (1), and similarly, measure ■), measure (3), and measure (4n-3) are displayed.
) have bar numbers (4n-2) and (4rl-1), respectively.
) and 4n scores are displayed. However, n is a natural number. FIG. 4 is a book showing another aspect of musical score display in playback mode. In other words, at the start of the score display, the measure (
1), measure Q), the first of the songs to be played in measure (3),
Displays the music score for the second and third measures, and then the music starts playing.
Each time a measure ends, a new musical score for one measure is sequentially displayed at the corresponding measure position. As a result, a plurality of measures including the measure to be played are always displayed on the display. Note that the means for recording musical score data in the performance recording memory 15 is not limited to the keyboard performance in the recording mode.
An external recording device 4 may also be used. Further, the number of bars displayed on the display is not limited to this embodiment and can be set as appropriate, and the manner of displaying the musical score in playback mode is not limited to this embodiment. Furthermore, the staff, treble clef, and vertical lines displayed on the display are not limited to those printed in advance, and may be displayed on a liquid crystal display when the power is turned on. Furthermore, the score display is not limited to a liquid crystal display, and various other displays such as a light emitting diode, electroluminescence, and CRT display are possible. As explained above, according to the present invention, it is possible to always display a plurality of measures before and after the measure to be played, and the measure can be displayed at a fixed position in the same way as a normal musical score. In other words, when playing while looking at the musical score displayed on the display, it is possible to see the preceding and following measures including the played measure, and since the played measures are always in a stationary state, it is easy to read the music.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing an embodiment of an electronic musical instrument including a musical score display device according to the present invention, Fig. 2 is a musical score showing a display mode of a musical score displayed in recording mode, and Fig. 3 is a musical score displayed in playback mode. Musical score showing the display mode of the music to be played, No. 4
The figure shows a score showing another display mode of the score displayed in the playback mode. 1. Keyboard, 2. Tone forming circuit, 4. Speaker, 5. Tempo oscillator, 6. Tempo counter. , 7. Pattern memory, 8. Rhythm sound source circuit, 9. Recording mode/playback mode selection switch, 10.
・Start switch, 12... Note length detection circuit, 13...
Note rest code conversion circuit, 14... Measure end detection circuit, 15... Performance recording memory, ]6... Recording mode data transfer control circuit, 17°38, 19, 20...
Selector, 21...4th memory, n...3rd memory, o...2nd memory, 24...ml memory, 25...
Display control circuit, ah...display device, 27--playback mode transfer control circuit, feather...measure counter, 29--external recording device. Figure 2 Figure 3 Figure 41H”<1

Claims (3)

[Claims] (1) Musical score information storage means for storing pitch information indicating pitch and note length information indicating note length, display means capable of displaying a plurality of measures, and a plurality of storage sections corresponding to measure display positions of the nucleus display means. and an information transfer control means for transferring score information from the score information storage means to the display information storage means, and the information transfer control means transfers a plurality of small numbers from the score information storage means when starting to display the score. Musical score information for each section is transferred for each measure to a storage unit corresponding to the measure display position of the core measure, and then, as the music progresses, the musical score information for a predetermined subsection is transferred from the musical score information storage means to the measure display position of the measure to which the musical score information belongs. a musical score display device that transfers the music score to a storage unit corresponding to the music score display device; (2) The display information storage means includes first to fourth storage units, and each of the first to fourth storage units is (4n-3).
Measure, (4n-2) measure, (4n-1) measure and 4n
A musical score display device according to claim (1), which corresponds to a bar display position of a bar (nFi natural number). (3) The display information storage means includes first to fourth storage sections, and the information transfer control means transfers the score information for two measures from the score information storage means to the first and fourth storage sections, respectively, for each measure. Thereafter, at the end of each odd numbered measure, the musical score information for two measures is transferred from the musical score information storage means to the storage section corresponding to the measure display position of the measure to which the musical score information belongs. Musical score display device according to item (1) - (4) The displayed musical score storage means is composed of first to fourth storage sections, and the information transfer control means is configured to store three measures of music from the musical score information storage means at the time of starting the musical score display. Transferring the musical score information to the first to third storage units for each measure,
Thereafter, each time a measure ends, the musical score information for one measure is transferred from the musical score information storage 1° stage to the storage section corresponding to the measure display position of the measure to which the musical score information belongs. Device.