JPS5878195A - Music 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 relates to a musical score display device that sequentially displays this QIIIi musical score on a liquid crystal display or the like.

This invention can display a musical score suitable for performing while viewing the displayed musical score, and also has a playback mode that displays such a musical score, and a recording mode that sequentially displays musical scores for nine songs played on the keyboard according to the keyboard performance. It is an object of the present invention to provide a high-quality musical score display device which has two modes, and allows display of musical scores that are easy to read by changing the manner of displaying musical scores depending on the two modes.

According to this invention, when in the recording mode, musical scores are inserted sequentially based on the musical score data generated in response to key presses on the keyboard, and the nine beat notes are shifted in units of one measure by indicating the sound at the end of each measure. In addition, in the playback mode, a plurality of measures of musical scores are displayed at the start of the playback mode based on the musical score data generated from the musical score data storage means that stores musical score data in advance, and thereafter, each measure is displayed to display nine musical scores in one.
The transition is made in measure units, and as a result, when in record mode, the notes corresponding to the notes played on the keyboard are sequentially displayed.
When in playback mode, multiple measures before and after the measure to be played are displayed.

The present invention will be described below with reference to the accompanying drawings.

FIG. #I1 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 l generates key information indicating the pressed key and an ON signal KON indicating the pressed state of the key corresponding to this key information. Note that the key information is pitch information indicating the pitch, and the key-on signal KON is a signal that becomes @1'' at a binary level when a key is pressed.

The musical tone forming circuit 2 forms a musical tone signal based on the pitch information generated from the keyboard l and the key-on signal KOH,
This signal is applied to a speaker 4 via an amplifier 3. These keys produce sounds corresponding to the keys pressed on the four speaker keyboards L.

Further, the tempo oscillator 5 generates a tempo clock TCL having a frequency corresponding to the set tempo, and this tempo clock TCL is counted by a tempo counter 6 and outputted as an address signal for the pattern memory 7. Maku,
The tempo counter 6 outputs a measure □ pulse mP every time it counts one measure.

The pattern memory 7 is composed of a one-only memory for storing rhythm patterns corresponding to various rhythms, and is a rhythm pattern to be created corresponding to the rhythm selected by the rhythm selection switch (not shown). is specified, and the rhythm pattern signal BP corresponding to the rhythm pattern is read out in accordance with the address signal output from the tempo counter 6. Note that the pattern memory 7 receives a start signal 8T, which will be described later.
(@1″) is applied to the enable terminal EN, only the left-handed operation becomes possible.

The nine rhythm pattern signals RP read from the pattern memory 7 are applied to the rhythm sound source circuit 8.

The rhythm sound source circuit 8Fi generates rhythm sound signals representing various rhythm instrument sounds in accordance with the rhythm pattern signal BP, and applies the signals to the speaker 4 via the amplifier 3 to generate rhythm sounds.

On the other hand, the recording mode/playback mode changeover switch 9 and the start switch 10 change the manner of musical score display according to the present invention depending on their operating states.

First, a case where both the changeover switch 9 and the start switch 10 are on will be described. When the changeover switch 9 is turned on, the mode signal R/P (
@1') is output and enters recording mode. When the start switch 10 is turned on, a start signal ST ("1") is output from the start switch 10, and a start pulse 768 is output from the differentiating circuit 11 which takes the mold component at the rising edge of this start signal ST. is output. Note that the start signal ST is applied to the enable terminal of the pattern memo Q7 during the rounding of the automatic rhythm performance described above, and the start pulse Δ
8T is used for setting the initial state in the playback mode, which will be described later.

Here, of the pitch information and the middle-on signal KON generated in response to a key depression on the keyboard 1, the key-on signal KON is applied to the note length detection circuit. The note length detection circuit 12 has a tempo oscillator 5 and a tempo clock CL added to another input, and a tempo clock TC added to the key-on time.
By counting L, the note length data is generated, and by counting the tempo clock CL added to the off time, the note length data of the rest is generated. In addition,
This note length detection circuit 12#i generates note length data and also generates a note writing pulse signal nP.

Ninth, 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. That is, the regular count value corresponding to a quarter note is, for example! When , vctk is set so that note length data corresponding to the regular count value is output even if the actual *0 count value is 30 or something like that, which does not match the regular count value.

The note length data generated from the note length detection circuit 12 is applied to the note rest information conversion circuit 13 and the measure end detection circuit 14. The note rest information conversion circuit outputs note rest information indicating a predetermined note and rest based on the input note length data, and stores this information together with pitch information generated from the keyboard l in the performance record memory 15. and added to selector 160A input. 9. The measure end detection circuit 14 has an accumulator, and sequentially accumulates the input note length data based on the note writing pulse signal nPK, and calculates the measure length data set in advance by a measure/setter (not shown). When the long value is reached, the measure pulse mPg is applied to the performance recording memory 15 and the A input of the selector 17.

The performance recording memory 15 is in the ninth recording mode Kt to which the mode signal R/P ("1') is added, and the note writing pulse signal nP output from the note length detection circuit 12 when detecting the note length is added. 41 reads note rest information from the conversion circuit 13 and pitch information from the keyboard l, and when a measure pulse m P 1 is output from the measure end detection circuit 14, that pulse is read as measure information.

In addition, both the selector 16 and the selector 17 send a mode signal R/P ("1") to the A person select terminal 8.
Select the rounding input that has been added and press selector 16.
guides the note rest information and pitch information applied to the A input to the fourth memory, and the selector 17 guides the measure pulse mP1 applied to the A input to the data transfer control circuit 19.

The fourth memory 18 reads the note rest information and pitch information added from the selector 16 only when the mode signal R/P (@1'') is applied and when the note write pulse signal nP is added. The information stored in the memo 918 is transferred to the third memory 20 based on the transfer control signal output from the data transfer control circuit 19 at the end of each bar, and the information stored in the third memory 20 is transferred to the irises 2. The information is transferred to the memory 4, stored in the second memory 21, and then transferred to the first memory 2.
Transferred to 2. That is, the data transfer control circuit 19 first clears the first memory n based on the measure pulse mP applied from the selector 17, and then transfers the irises 1 from the second memory 21.
The information is transferred to the main memory 22, then the second memory 21 is cleared and the information is transferred from the third memory to the second memory 21, then the third memory is cleared and the information is transferred from the fourth memory. Third
The information is transferred to the memory 20 and then the fourth memory 18 is cleared. However, the above operation is performed at high speed.

The display control circuit n reads note rest information and pitch information stored in the fourth memory 21, the third memory 21, and the first memory n, respectively, and converts the read note rest information into nine note rest information. Based on this, the dot information corresponding to the following specified notes and rests is output, and the position of the dot information corresponding to the notes is controlled based on the pitch information read out at the same time, and this dot information is included. A control signal is output to the display 1vF24. 24 display companies have X in advance on the hook! 1, a treble clef, a bar line, a final line, and other vertical lines are printed, and the musical score is displayed on the screen based on the control signal. In addition, measures divided by vertical lines (1)
, measure (2), measure (3), and measure (4) are the first
Memory n1 Displays notes and rests corresponding to information stored in the second memory 21, third memory 18, and fourth memory 18.

Figure 2 shows how the musical score is displayed on the display 24 when Hiroko is in 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
-) The signal BT becomes 10". At this point, the pattern memory 7 becomes inoperable, so automatic rhythm performance is stopped, but the above-mentioned recording and display of the score corresponding to the music played on the keyboard continues. It is done as follows.

Next, the case where the changeover switch 9 is turned off will be explained. When the changeover switch 9 is turned off, the changeover switch 9 outputs the mode signal R/P (@O") and enters the playback mode. In other words, the performance recording memory b receives the mode signal R/P.
(“0”) makes it possible to play back nine musical score data that has already been recorded. Both the selector 16 and the selector 17 send the mode signal R/ to their input select terminal 8A.
P ("0") is added to select the B input 9, and the mourning mode signal R/P (@Q'') is inverted by the inverter δ and applied to the AND circuit 26, which operates the AND circuit section. enable.

When the start switch 10 is turned on in this state, the start signal 8 becomes 1111'', and the start pulse Δ'sr is output from the differentiating circuit 11. The tempo counter 6 resets the count value when the start pulse Δ8T is applied to the reset terminal R, and the performance recording memory 15 resets the count value when the start pulse Δ8T is applied to the data transfer control circuit 19. The note rest information and pitch information for three measures are outputted to the fourth memory 18 via the yh large input of the selector 16.

On the other hand, data transfer control circuit 19 companies start pulse S〒
is added, the note rest information and pitch information for three measures output from the performance recording memory 15 are stored in the fourth memories 1B and 1.
Each message sound is controlled so as to be transferred to the 1E3 memory and the second message cage 21, respectively. It should be noted that since the mode signal R/F (10'') is added to the fourth mode 9 ratio, input information can be written instantaneously.

Afterwards, the note rest information and pitch information for three measures outputted from the performance recording memory 15 are stored in the second memory, third memory, and fourth memory 18 according to the season.

Next, when the bar pulse mP1 is output from the tempo counter 6, this bar pulse is applied to the data transfer control circuit 19 via the motif selector 170B input, and the data transfer control circuit 19 is connected to the fourth memory 18, the third memory adder, Happy 2
The memory module sends a transfer control signal to the first memory 4. Data transfer is thereby performed between the memories. Furthermore, when the measure pulse mP1 is added, the performance recording mesori 15 sends the note rest information and pitch information for one measure to the selector 1.
6 to the fourth memory 18 via the B input, and this information is stored in the fourth memory as information on the new measure.

FIG. 3 shows the manner in which the musical score is displayed on the display 24 in this reproduction mode. In other words, when the music score is displayed in the playback mode, the bar a) -
In (4), the music score for 3 measures is displayed, and then the 9 music scores that are displayed are transferred in units of 1 measure at the end of each measure, and 1
A new round musical score for a measure is displayed in measure (4) K:.

This allows the user to play the keyboard while looking at a plurality of measures including the measure to be played. The measures to be played are:
Of course, this is measure C) on the display 24.

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 n may also be used. Furthermore, the number of bars displayed on the display is not limited to this embodiment and can be set as appropriate.

Furthermore, the pentagram, treble clef, and vertical lines displayed on the display are not limited to those that are preprinted;
It may be displayed on the N-crystal table. In addition, various types of displays such as light emitting diodes, electroluminescent displays, CRT displays, etc. are possible, in addition to the musical score display with a liquid crystal display.

As explained above, according to the present invention, the advantages of rounding that can be achieved by always displaying multiple measures before and after the measure to be played, and that it is easy to read when playing while looking at the displayed musical score. There is. In addition, it is possible to select and use two modes with different display formats: a playback mode that displays such musical scores, and a recording mode that sequentially displays musical scores corresponding to good songs played on the keyboard. It is possible to provide a musical score display device with high performance.

[Brief explanation of 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, and FIGS. 2 and 3 show a public display of musical scores displayed by this musical score display device. This is the musical score used to explain the music. 1... Keyboard, 2... Musical tone forming circuit, 4... Speaker, 5... Tempo oscillator, 6-- Tempo counter, 7
-・Pattern memory, 8...Rhythm sound source circuit, 9...
・Record mode I'. - code/playback mode changeover switch, 10... start switch, 11 - differentiation circuit, 12 - note length detection circuit, 13.
...Note rest information conversion circuit, 14...Measure end detection circuit, 15...Performance recording memory, 16, 17...Selector, 18...Fourth memory, 19...Data transfer control circuit , addition...third memory, ■-second memory, fourth-first memory, n-display control circuit, sae...display device,
n...External recording device.

Claims (1)

[Scope of Claims] (1) Sound information storage means for storing pitch information indicating pitch and note length information indicating note length, a plurality of display sound storage means, and the above-mentioned sound information storage means at the time of starting display of musical score. The sound information of two or more measures stored in the means is transferred seasonally to the display sound storage means of the plurality of stages, and each time a bar ends, the storage information stored in the display sound storage means of each stage is transferred to the next stage. The display sound information is sequentially transferred to the display sound storage means of the stage, and the sound information storage means 1
Nine musical scores, comprising an information transfer control means for transferring sound information for a measure to the display sound storage means at the forefront stage, and a display means for displaying the musical score based on the stored information stored in the display sound storage means at each stage. Display device. Q) The sound information storage means stores pitch information and sound length information generated in response to key presses on a keyboard or from an external storage device. A musical score display device according to claim (1). 1) The musical score display device according to claim 1, wherein the end of the measure is detected by counting a tempo clock generated from a tempo oscillator used for automatic rhythm performance. (4) A sound information storage means for storing pitch information indicating a pitch and note length information indicating a note length, a multi-stage OII diacritic sound storage means a storage mode/playback mode switching means, and switching to a recording mode. At the end of each bar, the pitch information and note length information generated in response to the keys pressed on the keyboard are sequentially stored in the display sound storage means at the forefront of the display sound storage means of the plurality of rows. The stored information stored in the display sound storage means is transferred to the next display sound storage means 1tKJ [5.4 When switched to re-imprisonment mode, the information stored in the sound information storage means 2 at the start of musical score display is transferred to the display sound storage means of the next stage. The sound information of a measure or more is transferred to the display sound storage means of the plurality of stages according to the season, and the storage information stored in the OII sound indication storage means of each stage is sequentially transferred to the display sound storage means of the next stage at the end of each measure. an information transfer control means for transferring one bar's worth of sound information from the sound information storage means to the display sound storage means at the forefront; and a musical score based on the stored information stored in the display sound storage means at each stage. A musical score display device comprising display means for displaying. (5) The pitch information generating means stores pitch information and duration information generated in response to a 0 key press on the keyboard. (6) The end of the miJ measure is detected by accumulating the note length information in the recording mode, and is detected at the same time as the playback mode. The music display device according to claim 4, wherein the music display device detects the tempo clock by counting a tempo clock generated from a tempo oscillator used for automatic rhythm performance.