JPH0260189B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an electronic musical instrument, and is particularly characterized in that a key press indicator lamp and a key range division point indicator lamp (hereinafter referred to as a split lamp) are shared. Regarding electronic musical instruments.

[Conventional technology]

Conventional electronic musical instruments sequentially read data for each note from the musical score data to be played, and sequentially light up key press indicator lamps that correspond to the keys corresponding to the pitch of the read data. Alternatively, in order to indicate the dividing point between the melody key area and the accompaniment key area (split point), a split lamp provided at the split point is lit.

[Problem that the invention seeks to solve]

By the way, in conventional electronic musical instruments in which split points are displayed using lamps, the position of the split lamp is fixed, so there is a problem in that the number of split points is limited to a few.
In addition, a dedicated split lamp had to be provided separately.

This invention was made in view of the above-mentioned circumstances, and by sharing the key press indicator lamp and the split lamp, it is possible to set the split point arbitrarily, and at the same time, it is possible to save lamps. The purpose is to provide musical instruments.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention includes a lighting setting means for lighting a desired key press indicator lamp, and a lighting setting means that recognizes the position of the lit key press indicator lamp and sets this position as a split point. The invention is characterized by comprising a control means for controlling.

[Effect]

According to the above configuration, since any key press indicator lamp can be used as a split lamp, it is possible to arbitrarily set the split point. Also,
Since there is no need to provide a dedicated split lamp, lamps can be saved.

〔Example〕

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

FIG. 1 is a block diagram showing the configuration of an electronic musical instrument according to an embodiment of the present invention.

In this figure, 1 is a keyboard, and each key 2, 2, . . . of the keyboard 1 is provided with a key depression indicator lamp 3, 3, . These key press indicator lamps 3 are LED
(light emitting diode), etc., and is turned on by a lamp display circuit 4 to display the key to be pressed by the performer. Further, the key depression indicator lamp 3 is also used as a split lamp to indicate the dividing point (split point) of the key range, but this will be described later.

5 is a key switch circuit that constantly scans key 2 and reads the key code corresponding to the pressed key.
Supply to CPU6. CPU6 is program ROM
(Read-only memory) According to the program stored in 7, the processing to be described later is performed. 8 is work RAM (random access memory),
It is used to temporarily record various data necessary in the above processing process.

Next, 9 is a tone/mode switch, which includes a tone switch 9a for selecting tones such as piano, organ, and flute, and a mode for selecting modes such as melody practice, automatic accompaniment, and accompaniment recording/playback. It consists of a switch 9b. and,
The mode switch 9b includes a split switch 9c for setting a split point.

The operation of each of these switches is detected as an event (change point) by the CPU 6, and an event flag provided in the work RAM 8 corresponding to each switch is turned on.

The performance data recording RAM 10 records performance data on the melody side (hereinafter referred to as R side) and accompaniment side (hereinafter referred to as L side) separately in the R side area and the L side area, and this performance data is stored by the performer. is input from keyboard 1 by .

The automatic performance data ROM 11 is a ROM that records musical score data to be automatically performed, and is detachable. Therefore, by exchanging this ROM 11, it is possible to automatically play various songs.

The tone generator (TG) 12 generates a sound signal specified by the pitch, length, and tone color data supplied from the CPU 6, and its output is supplied to the speaker 14 via the amplifier 13.
The sound is produced from the speaker 14.

Next, the mode of this embodiment will be explained. Note that these modes are set by operating the mode switch 9b.

(1) Melody practice mode Automatically generates accompaniment sounds based on data from the automatic performance data ROM 11, and instructs which keys to press for R side (melody side) sounds by displaying them on the key press display lamp 3. . Each time the performer presses a designated key, the next key to be pressed is designated. In this way, in this mode, the R sidetone is produced by key performance.

In addition, in this mode, all keys 2 are set to the melody key range (R key range).

(2) Automatic accompaniment mode Both the R side and L side (accompaniment side) are played manually. However, when playing on the L side, just by pressing a key, rhythmic chords and bass notes are automatically output.

In addition, in this mode, keyboard 1 is on the L side and R side.
However, this dividing point (split point) is fixed, and the key press indicator lamp 3 at the fixed position
will be lit and act as a spritz lamp.

(3) R/L recording mode RRec switch in mode switch 9b and
It is set by the LRec switch and can be played manually on the R and L sides independently. Then, sounds are generated independently on the R side and L side as the keys are pressed, and are stored independently on the R side and L side in the performance data recording RAM 10.

In this mode, the keyboard 1 is divided into the L side and the R side, but this split point is variable.
The key press indicator lamp 3, which is turned on by operating the split switch 9c, serves as a split lamp.

(4) R (L) recording mode RRec switch in mode switch 9b or
This is set by the LRec switch, and all keys 2 on the keyboard 1 are in the R-side or L-side key range, allowing manual performance on the R-side or L-side.
Then, the sounds are produced as the keys are pressed, and are stored in the R side area or the L side area of the performance data recording RAM 10.

(5) R (L) playback mode RPlay switch in mode switch 9b or
This mode is set by the LPlay switch and plays back the performance data stored in (4) above. In this mode, when the R side is reproduced, all the keys 2 are set to the L side, and sound is produced in accordance with the pressed keys. Conversely, when the L side is played, all keys 2 are set to R.
The pronunciation is made exactly as the keys are pressed. At the same time as the above pronunciations, these are recorded as performance data.
It is also possible to store it in the RAM 10, in which case the LRec switch or RRec switch described above can be pressed.

(6) L/R playback mode LPlay switch in mode switch 9b and
This is the mode set by the RPlay switch. In this mode, the L side and R side sounds are independently reproduced according to the data stored in the performance data recording RAM 10, and the key performance is not produced.

(7) Normal mode All keys 2 are in the R key range, allowing normal key performance.

Next, the operation of this embodiment will be explained with reference to the flowchart of FIG.

In this figure, steps SP1 to SP5 are for acquiring the status of each switch and determining the mode.

First, in step SP1, the states of key 2, mode switch 9b, and tone switch 9a are acquired, and the event flag of the newly turned on switch is turned on. Note that the event flag is provided in a predetermined area of the work RAM 8. Next, in step SP2, a process for prohibiting switch operations that should be invalidated (for example, pressing the LRec switch and LPlay switch simultaneously) is performed.

In addition, steps SP3 and SP4 detect melody practice mode and automatic accompaniment mode.
In SP5, the performance recording/playback mode is determined based on the status of the LRec, RRec, LPlay, and RPlay switches.

The operation of this embodiment will be described below for each mode.

(1) Melody practice mode (all keys R key range) When the melody practice mode is set by the mode switch 9b, the process moves from step SP3 to SP10, and the process of the melody practice mode begins.

When the start point of this mode, that is, an event is detected in step SP10, the CPU 6 stores the first note of the automatic performance data in the automatic performance data ROM1.
Read from 1 and key 2 corresponding to the pitch of this note
Turn on the key press indicator lamp 3 (step
SP11). When the player presses a key, this is detected by the key switch circuit 5, and the corresponding key data is supplied to the R side of the tone generator 12 to generate a sound (step SP12).

In this case, when the pressed key matches the key specified by the indicator lamp 3 (step
SP13), the CPU 6 reads the next note from the automatic performance data ROM 11, and displays the corresponding display lamp 3.
lights up and turns off the previously lit one,
Return to step SP1 (step SP14). On the other hand, if the pressed key and the displayed key do not match, the process directly returns to step SP1.

Next, when a second key is pressed, the process passes through steps SP1 to SP3 and SP10 and moves to SP12, where the sound corresponding to the pressed key is produced. Then, the match between the pressed key and the displayed key is checked (step
When a match is found (SP13), the next note is read out, the corresponding indicator lamp 3 is turned on, and the previous one is turned off (step SP14). Then, return to step SP1 again.

Thereafter, the same process is repeated, and the performance progresses only when the performer presses the correct key, and melody practice is performed.

(2) Automatic accompaniment mode (L/R division: split point fixed) When automatic accompaniment mode is set by mode switch 9b, the CPU 6 starts from step SP4.
Transfer processing to SP20 and perform automatic accompaniment mode processing.

When the start point of this mode, that is, an event is detected in step SP20, the CPU 6 turns on the key press indicator lamp 3 at a predetermined split position.
(Step SP21). In this case, the split position is fixed, and the indicator lamp 3 plays the role of the split lamp 3.

When the performer presses key 2, it is determined whether or not this key 2 is to the right of the split point SP (step SP22: When key 2 is on the right, key code > split point SP), sometimes,
This key data of key 2 is converted to tone generator 1.
2 to the R side to produce sound (step
SP23).

On the other hand, when the pressed key 2 is on the L side,
The CPU 6 forms accompaniment key data such as chords and bass notes corresponding to the pressed key data (step
SP24), and supplies this to the L side of the tone generator 12 to generate a sound (step SP25).

When the processing for the first key press is thus completed, the process returns to step SP1 and waits for the next key press. When the key is pressed for the second time or later, the process moves from steps SP1 to SP4 to SP20, and from SP20 to SP22, and from step SP22 onwards, the same process as described above is repeated.

(3) R/L recording mode (R/L division, variable split point) LRec switch in mode switch 9 or
Pressing down the RRec switch, or pressing both switches together, will cause this to step.
A determination is made in SP5, and the process moves to step SP30.

Each case will be explained separately below.

(a) When LRec switch is on and RRec switch is off.

In this case, all keys 2 are in the L key range, and the split point SP is set larger than any of the keys. Note that the split lamp is not lit.

First, when passing step SP30 for the first time, "LRec event has occurred" and the step
Proceed to SP31. In this case, since the RRec switch is off, the process proceeds from step SP31 to SP32, where the split point SP is set to the maximum and all keys 2 are in the L key range.

Then, when the performer presses key 2, the step
At SP33, it is determined whether the pressed key is on the R side or the L side.
In this mode, all keys are on the L side, so the process advances to step SP34, where pressed key data is supplied to the L side of the tone generator 12 and produced, and performance data is recorded at step SP35.
It is stored in the L side area of RAM10. and,
Return to step SP1.

Next, when a key is pressed for the second time or later, the process goes through steps SP30→SP36→SP42→SP33.
The process moves to SP34, and the same process as above is performed. In this way, the key press data on the L side is recorded and generated in sequence.

(b) When RRec switch is on and LRec switch is off.

In this case, all keys 2 are in the R key range, and the split point SP is set smaller than any of the keys. Further, the split lamp is not lit.

First, when passing step SP30 for the first time, it will be "No LRec event" and the step
Proceed to SP36. In this case, RRec switchion,
Since the LPec switch is off, the process goes to step SP37 if there is an RRec event, and goes to step SP38 if there is no LRec in progress, where the split point SP is set to the minimum and all keys 2 are in the R key range.

Then, when the performer presses key 2, the step
At SP33, it is determined whether the pressed key is on the R side or the L side. In this mode, all keys are on the R side, so the process advances to step SP39, where pressed key data is supplied to the R side of the tone generator 12 and produced, and performance data is recorded at the next step SP40.
It is stored in the R side area of RAM10, and the step
Return to SP1.

Next, when a key is pressed for the second time or later, the process goes through steps SP30→SP36→SP42→SP33.
Processing moves to SP39, and the same processing as above is performed,
Recording and sound generation of R side key press data are performed.

(c) When both LRec switch and RRec switch are on.

In this case, the L key range and the R key range are divided, and the split point SP is displayed by the split lamp 3 (shared with the key press indicator lamp 3). Note that the split point SP is once set to the initial position,
Thereafter, each time the split switch 9c is pressed, it is moved one by one to the right.

Now, when passing through step SP30 for the first time in this mode, there is an ``LRec event'', so the process moves to step SP31. Then, due to the RRec switch being turned on, RRec is in progress and the process proceeds to step SP41, where the split lamp 3 at the initial position is turned on, and the process returns to step SP1 again.

After this, when the performer presses key 2, the step
The process moves to step SP33 via SP30→SP36→SP42, and it is determined whether the depressed key is on the R side or the L side. That is, when the key code is larger than the split point SP, it is determined to be on the R side, and when it is smaller than the split point SP, it is determined to be on the L side. If the key code is on the R side, the key code is determined at steps SP39 and 40, and when it is on the L side, the key pressed key data is determined at steps SP34 and SP35. Pronunciation and memorization take place.

Thereafter, the above process is repeated every time a key is pressed.

(d) When split switch 9c is on.

After the split lamp 3 is once lit at the initial position, when the split switch 9c is pressed down,
The lighting position moves to the right one by one.

In this case, the LRec and RRec events have already ended, so the processing will proceed from steps SP30 to SP42.
Then, turning on of the split switch 9c is detected, the split point SP is moved one place to the right (step SP43), and the split lamp 3 corresponding to the split point SP after the shift is turned on (step SP43).
SP41). Thereafter, each time the split switch 9c is pressed, the split position is moved one by one to the right, and the corresponding split lamp 3 is lit.

(4) R recording/L playback mode (all keys in the R range) If the melody practice mode and automatic accompaniment mode switches in mode switch 9 are both off, and the LPlay switch or RRec switch is pressed down, or When both switches are off, this is determined in step SP5 and the step
Processing is transferred to SP50.

At step SP50, the pressed key data is supplied to the R side of the tone generator to generate a sound. Also, when the RRec switch is on (step SP51), pressed key data is recorded as performance data.
Store in the R side area of RAM10 (step
SP52).

After the above process is completed or when the RRec switch is off, the process moves from step SP52 or SP51 to step SP53, and it is checked whether the LPlay switch is on. When the LPlay switch is on, the L Play switch of the performance data recording RAM 10
Data is read from the side area and supplied to the L side of the tone generator 12 to generate sound (step
SP54), return to step SP1 again. On the contrary
Step SP53 when LPlay switch is off
The process immediately returns to step SP1, and the above process is repeated every time a key is pressed.

(5) L recording/R playback mode (all keys L key range) When the melody practice mode and automatic accompaniment mode switches in mode switch 9 are both off and the LRec switch or RPlay switch is pressed down, This is determined at step SP5, and the process moves to step SP60.

The processing in this mode is exactly the same as the processing in (4) above where the L side and the R side are switched in the R recording/L playback mode, and the processing in steps SP60 to SP64 is the same as the processing in the above steps.
Compatible with SP50 to SP54. Therefore, detailed explanation will be omitted.

(6) L/R playback mode (all keys non-pronounced) LPlay switch in mode switch 9 and
When the RPlay switch is pressed down, the process moves from step SP5 to step SP70.

This mode is a mode in which the data in the performance data recording RAM 10 is sequentially read out and reproduced as is, and no sound is produced even if any of the keys 2 is pressed.

First, in step SP70, data is read from the L side area of the performance data recording RAM 10, and this data is supplied to the L side of the tone generator 12 to generate sound.

Next, in step SP71, data is read from the R side area of the performance data recording RAM 10, and this data is supplied to the R side of the tone generator 12 to generate sound, and the process returns to step SP1.

In this way, according to this embodiment, by using the key press display lamp 3 as a split lamp, not only can lamps be saved, but also, as explained in the R/L recording mode section of (3) above, Split point SP can be set at any position.

Note that the modes can be distinguished by changing the light color of the lamp indicating the split point (fixed) in automatic accompaniment mode (2) above and the lamp indicating the split point in R/L recording mode (3) above. It can also be made easier.

In addition, when all the keys 2 are in the L key range, the split lamp 3 is not lit in the above embodiment, but the pace tone key range and the chord key range are divided, and the split light corresponding to this divided position is The playing cards 3 may be lit.

(Effects of the Invention) As explained above, the present invention has the following advantages because the key press indicator lamp and the split lamp are shared.

(1) You can save on lamps.

(2) The split point can be set at any position.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the electrical configuration of an electronic musical instrument according to an embodiment of the present invention, and FIG. 2 is a flowchart for explaining the operation of the embodiment. 2...Key, 3...Key press indicator lamp, split lamp, 4...Lamp display circuit, 6...CPU
(control means), 9c...split switch, (4, 6, and 9c above are lighting setting means).

Claims (1)

[Scope of Claims] 1. Data for each note is sequentially read from musical score data to be played, and key press indicator lamps provided corresponding to keys corresponding to the pitch of the read data are sequentially lit. In an electronic musical instrument equipped with a key indicating device, a lighting setting means for lighting a desired one of the key pressed indicator lamps, and a lighting setting means that recognizes the position of the lit key pressed indicator lamp and divides this position into a key range. 1. An electronic musical instrument comprising: a control means having a control means;