Electronic keyboard instrument, method for controlling an electronic keyboard instrument, and control program for an electronic keyboard instrument

Abstract

To optimize influence on a performer during performance for each performer.SOLUTION: An electronic keyboard instrument includes: a keyboard 2; a display device; and at least one processor. In the keyboard 2, at least a first key area KR1 corresponding to a first tone color and a second key area KR2 corresponding to a second tone color can be set. The display device is used for identification of the first key area and the second key area. At least one processor instructs to change a display mode of the display device on the basis of a user operation to the keyboard 2.SELECTED DRAWING: Figure 9

Description

Technical Field

[0001] Embodiments relate to a method for controlling an electronic keyboard instrument and a control program for an electronic keyboard instrument.

Background Art

[0002] In an electronic keyboard instrument, a function called "split function" in which different timbres are assigned to each key range is known. By using the split function of the electronic keyboard instrument, a performer (user) can play using a plurality of timbres simultaneously. During performance using the split function, it is preferable that the performer can immediately check the settings of the split function (hereinafter referred to as split settings).

[0003] As such a display means, it is conceivable to use LEDs (Light Emitting Diodes) corresponding to each key of the keyboard, like the performance input device shown in Patent Document 1.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, depending on the brightness and mounting method of the LEDs, maintaining the lighting state of a large number of LEDs may interfere with the concentration of the performer. On the other hand, depending on the display method such as LEDs, it is also conceivable that the level of immersion of the performer in the performance increases. For this reason, it is preferable that the notification method of the split setting using the display means can be customized according to the preference of the performer.

[0006] Therefore, an object of the present invention is to provide an electronic keyboard instrument, a control method for an electronic keyboard instrument, and a control program for an electronic keyboard instrument that can optimize the influence exerted on a performer during performance for each performer.

Means for Solving the Problem

[0007] An electronic keyboard instrument according to an embodiment of the present invention is A keyboard capable of at least setting a first key range corresponding to a first timbre and a second key range corresponding to a second timbre, a display device for identifying the first key range and the second key range, and at least one processor, wherein the at least one processor instructs a display unit that is lit on the display device and corresponds to a key range including the operated key to dim, including turning off the light, based on a user operation on the keyboard.

Advantages of the Invention

[0008] According to the present invention, the influence exerted on a performer during performance can be optimized for each performer.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

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Figure 9

Figure 10

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Figure 16

Embodiments for Carrying Out the Invention

[0010] Embodiments will be described below with reference to the drawings. The drawings are schematic or conceptual. The dimensions, ratios, etc. of each drawing are not necessarily the same as those in reality. In the following description, components having substantially the same functions and configurations are denoted by the same reference numerals. The "number", "hyphen + number", "alphabet", etc. after the characters constituting the reference numeral are referred to by the reference numerals including the same characters, and are used to distinguish between elements having the same configurations. When it is not necessary to distinguish between elements denoted by reference numerals including the same characters, these elements are referred to by reference numerals including only the characters.

[0011] [1] First Embodiment When the split setting is used, the electronic keyboard instrument 1 according to the first embodiment has a function of changing the display mode of the display device 3 corresponding to the key range last operated by the performer. Details of the electronic keyboard instrument 1 according to the first embodiment will be described below.

[0012] [1-1] Configuration FIG. 1 is an external view showing an example of the electronic keyboard instrument 1 according to the first embodiment. The electronic keyboard instrument 1 is an electronic musical instrument such as an electronic piano, a synthesizer, or an electronic organ. As shown in FIG. 1, the electronic keyboard instrument 1 includes, for example, a keyboard 2, a display device 3, an LCD (Liquid Crystal Display) 4, an input unit 5, and a speaker 6.

[0013] The keyboard 2 includes a plurality of keys 10-1 to 10-N (N is an integer of 2 or more). The keys 10-1 to 10-N are each an operator for specifying a pitch. The electronic keyboard instrument 1 determines the timings of sounding and silencing the sound corresponding to the operated pitch when the key 10 is pressed and released by the performer. Note that the number of keys 10 included in the keyboard 2 is not limited to the illustrated 61, and is designed according to the target of the electronic keyboard instrument 1. The keys 10-1 to 10-N may be used as operators for changing the settings of the electronic keyboard instrument 1.

[0014] The display device 3 is a set of a plurality of displays associated with the operation and settings of the keyboard 2. The display device 3 includes, for example, a plurality of LEDs (Light Emitting Diodes) 11 respectively associated with the plurality of keys 10. Each LED 11 can emit light in multiple colors and is arranged, for example, directly below the associated key 10. When the LED 11 lights up, the performer visually recognizes that the associated key 10 is emitting light. For example, the LED 11 is used to notify the performer of the settings of a plurality of key ranges when the split setting is used.

[0015] The LCD4 is a display used for displaying information such as settings of the electronic keyboard instrument 1. The LCD4 can display the operating mode of the electronic keyboard instrument 1 and messages associated with the operation of the input unit 5 by the performer. Note that the LCD4 has a touch panel function and may be used as an input unit of the electronic keyboard instrument 1. The electronic keyboard instrument 1 may be equipped with other displays such as an organic EL (electroluminescence) display as long as it is possible to display information, or an external display may be connected wirelessly or wired.

[0016] The input unit 5 is a set of operators used for operating settings etc. of the electronic keyboard instrument 1. The input unit 5 includes, for example, a power switch, a volume switch used for adjusting the volume, and operation buttons for changing the operating mode of the electronic keyboard instrument 1. The input unit 5 can be freely arranged on the electronic keyboard instrument 1 within a range that does not interfere with the keyboard 2 etc.

[0017] The speaker 6 is a device that converts an electrical signal into sound. The electronic keyboard instrument 1 can cause the speaker 6 to produce sound corresponding to the operating mode of the electronic keyboard instrument 1 and the operation of the keyboard 2 by the performer. Note that the electronic keyboard instrument 1 may output sound corresponding to the operation of the keyboard 2 to an external connection device such as headphones without using the speaker 6.

[0018] (Configuration of the electronic keyboard instrument 1) FIG. 2 is a block diagram showing an example of the detailed configuration of the electronic keyboard instrument 1 according to the first embodiment. As shown in FIG. 2, the electronic keyboard instrument 1 further includes, for example, a CPU (Central Processing Unit) 20, a timer 21, a ROM (Read Only Memory) 22, a RAM (Random Access Memory) 23, a storage device 24, an LCD (Liquid Crystal Display) controller 25, an LED (Light Emitting Diode) controller 26, a key scanner 27, a sound source 28, a DAC (Digital to Analog Convertor) 29, an amplifier 30, and a bus 31. The CPU 20, the ROM 22, the RAM 23, the storage device 24, the LCD controller 25, the LED controller 26, the key scanner 27, and the sound source 28 are connected to the bus 31.

[0019] The CPU 20 is a processor that controls the overall operation of the electronic keyboard instrument 1. For example, the CPU 20 expands (reads out) the program stored in the ROM 22 into the RAM 23. Then, the CPU 20 realizes various functions of the electronic keyboard instrument 1 by executing the program expanded in the RAM 23.

[0020] The timer 21 is a clock generator that generates a clock signal. The timer 21 supplies the generated clock signal to the CPU 20. The CPU 20 can operate based on the clock signal supplied from the timer 21.

[0021] The ROM 22 is a read-only storage device that stores data non-volatilely. The ROM 22 stores a control program for controlling the electronic keyboard instrument 1, preset data at the time of factory shipment, and the like.

[0022] The RAM 23 is a storage device used as a working area for the CPU 20. For example, the RAM 23 stores data necessary for executing the program stored in the ROM 22 or the storage device 24. Further, the RAM 23 can store data generated during the operation of the electronic keyboard instrument 1, setting data, and the like.

[0023] The memory device 24 is a readable and writable memory device that stores data non-volatilely. The memory device 24 is used to store the setting information of the operation mode changed by the user, the operation log, and the like. The CPU 20 may control the electronic keyboard instrument 1 using the program stored in the memory device 24. The memory device 24 may be externally connected to the electronic keyboard instrument 1.

[0024] The LCD controller 25 is an IC (Integrated Circuit) connected to the LCD 4 and controlling the display mode of the LCD 4. The LCD controller 25 displays various information on the LCD 4 according to the control of the CPU 20. The LCD controller 25 can be replaced according to the specifications of the display mounted on the electronic keyboard instrument 1.

[0025] The LED controller 26 is an IC connected to the display device 3 and controlling the display mode of the display device 3. The LED controller 26 controls the display device 3 for each LED 11 based on an instruction from the CPU 20. The LED 11 can have its emission color and emission intensity changed based on the control of the LED controller 26. The LED 11 is set to, for example, a lit state, a dimmed state, or an extinguished state according to the emission intensity. The LED 11 in the dimmed state is dimmer than the LED 11 in the lit state. The LED 11 in the extinguished state is dimmer than the LED 11 in the dimmed state.

[0026] The key scanner 27 is an IC capable of detecting the operation state of the operator. The key scanner 27 is connected to the keyboard 2 and constantly monitors the key press / release state (operation state) of the keyboard 2. Also, the key scanner 27 is connected to the input unit 5 and constantly monitors the operation state of the input unit 5. Then, the key scanner 27 notifies the CPU 20 of each of the operation state of the keyboard 2 and the operation state of the input unit 5.

[0027] The sound source 28 is, for example, a GM sound source compliant with the GM (General MIDI) standard. The sound source 28 has, for example, a polyphonic capacity of up to 256 voices and can utilize a plurality of timbres. The sound source 28 reads out musical tone waveform data from a waveform ROM (not shown) based on the control of the CPU 20 and inputs it to the DAC 29.

[0028] The DAC 29 is a circuit that converts a digital signal into an analog signal. The DAC 29 converts the musical tone waveform data (digital signal) input from the sound source 28 into an analog signal and inputs the converted analog signal to the amplifier 30.

[0029] The amplifier 30 is a circuit that amplifies the input signal. The amplifier 30 amplifies the analog signal input from the DAC 29 and inputs the amplified analog signal to the speaker 6. Then, the speaker 6 emits a sound corresponding to the input signal.

[0030] The bus 31 is a data transmission path used for communication between the components of the electronic keyboard instrument 1. Various devices may be connected to the bus 31. For example, a foot pedal used for performance may be connected to the bus 31. Also, when an external terminal is connected to the bus 31 wirelessly or by wire, the electronic keyboard instrument 1 may be operated based on the operation of the external terminal.

[0031] Note that the output destination of the music waveform data output from the sound source 28 is not limited to the configuration described above. For example, the combination of the DAC 29 and the amplifier 30 may be replaced with a digital amplifier that amplifies a digital signal and then converts it into an analog signal. The output signal of the amplifier 30 may be output to an output terminal such as a headphone out. The sound system such as the DAC 29 used for sound production may be externally connected to the electronic keyboard instrument 1.

[0032] (Configuration of the ROM 22) FIG. 3 is a block diagram showing an example of the configuration of the ROM 22 included in the electronic keyboard instrument according to the first embodiment. As shown in FIG. 3, the ROM 22 stores, for example, a control program 220, a mode selection program 221, and an LED control program 222. Note that the classification and functions of the programs described below are merely examples. The configuration of the programs can be appropriately changed as long as the operations described later can be executed.

[0033] The control program 220 is a program for realizing the functions of the electronic keyboard instrument 1 as a musical instrument. By executing the control program 220, the CPU 20 performs sound generation and sound cancellation processing based on the operation mode of the electronic keyboard instrument 1 and the operation of the keyboard 2 by the performer. Thereby, the performer can play using the electronic keyboard instrument 1.

[0034] The mode selection program 221 is a program used for setting the operation mode of the electronic keyboard instrument 1. By executing the mode selection program 221, the CPU 20 sets the operation mode of the electronic keyboard instrument 1. Further, the mode selection program 221 can display a GUI (Graphical User Interface) on the LCD 4 and change the operation mode of the electronic keyboard instrument 1 based on the operation of the input unit 5 by the performer.

[0035] The LED control program 222 is a program used for controlling the LED controller 26. By executing the LED control program 222, the CPU 20 controls the display mode of the display device 3 to a desired state. For example, when a certain key 10 is pressed, the LED control program 222 lights up the LED 11 associated with the key 10. Further, when the electronic keyboard instrument 1 is in an operation mode using the split function, the LED control program 222 causes at least one LED 11 corresponding to the key range to emit light in a different emission color for each key range. Then, the LED control program 222 appropriately changes the display mode of the display device 3 according to the operation state of the electronic keyboard instrument 1. Details of the operation of the electronic keyboard instrument 1 when the split function is used will be described later.

[0036] (Configuration of RAM23) FIG. 4 is a block diagram showing an example of the configuration of the RAM 23 included in the electronic keyboard instrument 1 according to the first embodiment. As shown in FIG. 4, the RAM 23 stores, for example, first setting data 230A and second setting data 230B. Each of the first setting data 230A and the second setting data 230B is data related to the setting of an operation mode in which the split function is used. Hereinafter, an example of the setting data of the operation mode using the split setting will be described using the first setting data 230A.

[0037] The first setting data 230A includes, for example, a split setting S1, a tone color setting S2, and an LED setting S3. The split setting S1 includes information on a plurality of key ranges KR (Key Region) set in the operation mode. The information of each key range KR is stored, for example, based on the information of the key number KN assigned to each key 10. The tone color setting S2 includes information on the tone color assigned to each key range KR set in the operation mode. The CPU 20 determines the tone color to be output to the sound source 28 when the key 10 is pressed for each key range KR based on the tone color setting S2. The LED setting S3 includes information on the emission color of the LED 11 assigned to each key range KR set in the operation mode. The CPU 20 determines the emission color of the LED 11 for each key range KR based on the LED setting S3.

[0038] Note that the configuration of the first setting data 230A described above is an example. The setting data of the operation mode using the split setting may include data related to the name of the operation mode, parameters related to the emission intensity of the LED 11, parameters related to the pitch, the width of each key range KR, that is, information on the number of keys 10 included in each key range KR, and the like. The performer may use the preset setting data or may customize the setting data by himself / herself. Thereby, the performer can use the electronic keyboard instrument 1 in an operation mode suitable for his / her preference. The setting data edited by the performer is stored, for example, in the storage device 24 and read into the RAM 23 when the power of the electronic keyboard instrument 1 is turned on.

[0039] [1-2] Operation The operation of the electronic keyboard instrument 1 according to the first embodiment will be described below. In the drawings referred to below, the right side of the paper corresponds to the treble side of the keyboard 2, and the left side of the paper corresponds to the bass side of the keyboard 2. Note that the pitch (height of the sound) can be set for each key range KR. For this reason, the pitch assigned to the key range KR set on the left side of the keyboard 2 may be higher than the pitch assigned to the key range KR set on the right side of the keyboard 2. The number of key ranges KR set when using the split function may be three or more. In the first embodiment, for the sake of simplicity of explanation, the case where the electronic keyboard instrument 1 uses the split function and two key ranges KR are set in the split setting will be described.

[0040] FIG. 5 is a schematic diagram showing an example of the split setting in the electronic keyboard instrument 1 according to the first embodiment. FIG. 5 shows the appearance of the keyboard 2 before the electronic keyboard instrument 1 is set to the operation mode using the split function and the keyboard 2 is operated by the performer. As shown in FIG. 5, in this example, the CPU 20 sets two key ranges KR1 and KR2 on the keyboard 2, and each LED 11 of the display device 3 is lit in a color corresponding to the tone color setting.

[0041] The key range KR1 is composed of a plurality of keys 10a arranged on the left side of the keyboard 2. For example, a bass is assigned as the tone color of the key range KR1. The LED 11a associated with the key 10a in the display device 3, that is, the LED 11a corresponding to the key range KR1, is set to the first lighting state. For example, the LED 11a in the first lighting state emits blue light, and to the performer, at least a part of the key 10a appears to emit blue light.

[0042] The key area KR2 is composed of a plurality of keys 10b arranged on the right side of the keyboard 2. For example, a piano is assigned as the timbre of the key area KR2. Among the display devices 3, the LED 11b associated with the key 10b, that is, the LED 11a corresponding to the key area KR1, is set to a second lighting state different from the first lighting state. For example, the LED 11b in the second lighting state emits light in a red color different from the emission color of the LED 11a, and to the performer, at least a part of the key 10b appears to be emitting red light.

[0043] (Periodic processing) FIG. 6 is a flowchart showing an example of the periodic processing of the electronic keyboard instrument 1 according to the first embodiment. The periodic processing is an operation that is periodically processed by the CPU 20 when the power of the electronic keyboard instrument 1 is on. Hereinafter, with reference to FIG. 6, the periodic operation of the electronic keyboard instrument 1 according to the first embodiment will be described.

[0044] When the power of the electronic keyboard instrument 1 is turned on, the CPU 20 performs initial settings and starts the periodic processing (start). Specifically, for example, the CPU 20 reads out the control program 220, the mode selection program 221, the LED control program 222, etc. from the ROM 22 to the RAM 23, and executes these programs read into the RAM 23.

[0045] Next, the CPU 20 executes instrument control processing (step ST1). The instrument control processing is realized by the CPU 20 executing the control program 220. When the instrument control processing is executed, the electronic keyboard instrument 1 becomes in a state where it can be played by the performer.

[0046] Next, the CPU 20 checks whether the operation mode of the electronic keyboard instrument 1 has been changed (step ST2). The processing in step ST2 is realized by the CPU 20 executing the mode selection program 221. Whether the operation mode of the electronic keyboard instrument 1 has been changed is determined, for example, by whether the user (for example, the performer) has performed an operation to change the operation mode between the previous periodic processing and the current periodic processing.

[0047] When the operation mode of the electronic keyboard instrument 1 is changed (step ST2, YES), the CPU 20 executes operation mode setting processing (step ST3). The operation mode setting processing is realized by the CPU 20 executing the mode selection program 221. The execution of the processing in step ST3 corresponds to, for example, the operation mode of the electronic keyboard instrument 1 being changed based on the operation of the input unit 5 by the performer. When the operation mode change processing is completed, the CPU 20 proceeds to the processing in step ST4.

[0048] When the operation mode of the electronic keyboard instrument 1 is not changed (step ST2, NO), the CPU 20 proceeds to the processing in step ST4.

[0049] In the processing of step ST4, the CPU 20 executes display control processing. The display control processing is realized by the CPU 20 executing the LED control program 222. That is, the display control processing changes the display mode of the display device 3 according to the operation state of the keyboard 2. The details of the display control processing will be described later.

[0050] Next, the CPU 20 checks whether the power of the electronic keyboard instrument 1 has been turned off (step ST5).

[0051] When the power of the electronic keyboard instrument 1 is not turned off (step ST5, NO), the CPU 20 proceeds to the processing in ST1. That is, while the power of the electronic keyboard instrument 1 is on, the CPU 20 appropriately repeats the processing in steps ST1 to ST4.

[0052] When the power of the electronic keyboard instrument 1 is turned off (step ST5, YES), the CPU 20 executes shutdown processing for the electronic keyboard instrument 1. The shutdown processing includes, for example, storing user data such as log information and updated setting data in the storage device 24. When the shutdown processing is completed, the electronic keyboard instrument 1 becomes off (ends).

[0053] The processing of step ST1 (control program 220) described above, the processing of steps ST2 and ST3 (mode selection program 221), and the processing of step ST4 (LED control program 222) may be executed in parallel. In this case, one cycle of processing corresponds to a predetermined period set based on a clock signal, for example.

[0054] (Display control processing) FIG. 7 is a flowchart showing an example of the display control processing of the electronic keyboard instrument according to the first embodiment. Hereinafter, with reference to FIG. 7, the display control processing of the electronic keyboard instrument 1 according to the first embodiment will be described.

[0055] When the display control processing starts, the CPU 20 executes the active key range determination processing (step ST10). The active key range determination processing is an operation for determining the key range KR that the performer is focusing on. Hereinafter, the key range KR that the performer is focusing on (for example, the key range being operated) will be referred to as the "active key range AKR", and among the plurality of set key ranges KR, the key range KR other than the key range KR corresponding to the active key range AKR will be referred to as the "other key range OKR". The details of the active key range determination processing will be described later.

[0056] Next, the CPU 20 checks whether the active key range AKR has been changed (step ST11). Specifically, the CPU 20 compares the setting of the active key range AKR set in the previous cycle of processing with the setting of the active key range AKR set in the current cycle of processing. Then, when the setting of the active key range AKR is different between the previous cycle of processing and the current cycle of processing, the CPU 20 determines that the active key range AKR has been changed.

[0057] If the active key range AKR has not been changed (step ST11, NO), the CPU 20 ends the series of processing in FIG. 7 (returns).

[0058] If the active key range AKR has been changed (step ST11, YES), the CPU 20 proceeds to the processing of step ST12.

[0059] In the process of step ST12, the CPU 20 checks whether the LED 11 corresponding to the active key area AKR is in the lit state.

[0060] If the LED 11 corresponding to the active key area AKR is not in the lit state (step ST12, NO), the CPU 20 ends the series of processes in FIG. 7 (returns).

[0061] If the LED 11 corresponding to the active key area AKR is in the lit state (step ST12, YES), the CPU 20 proceeds to the process of step ST13.

[0062] In the process of step ST13, the CPU 20 sets the LED 11 corresponding to the active key area AKR to the off or dimmed state, and sets the LED 11 corresponding to the other key area OKR to the lit state. Specifically, the CPU 20 sets the LED 11 associated with the key 10 included in the active key area AKR to the off or dimmed state of the color assigned to the key area KR. Further, the CPU 20 sets the LED 11 associated with the key 10 included in the other key area OKR to the lit state of the color assigned to the key area KR. When the process of step ST13 is completed, the CPU 20 ends the series of processes in FIG. 7 (returns).

[0063] (Active key area determination process) FIG. 8 is a flowchart showing an example of the active key area determination process of the electronic keyboard instrument according to the first embodiment. Hereinafter, with reference to FIG. 8, the active key area determination process of the electronic keyboard instrument 1 according to the first embodiment will be described.

[0064] When the active key area determination process starts, the CPU 20 acquires the information of the last operated key 10 (step ST101). Specifically, the CPU 20 acquires the key number KN of the last key 10 pressed via the key scanner 27.

[0065] Next, the CPU 20 acquires information on the key area KR including the key 10 that was last operated (step ST102). Specifically, the CPU 20 checks which key area KR among the plurality of key areas KR set in the current operation mode the key number KN acquired in step ST101 is included in.

[0066] Next, the CPU 20 sets the key area KR including the key 10 that was last operated as the active key area AKR (step ST103). That is, the CPU 20 sets the key area KR as the active key area AKR based on the information on the key area KR confirmed in step ST102. When the process of step ST103 is completed, the CPU 20 ends the series of processes in FIG. 8 (returns).

[0067] (Specific Example of Display Control Process) FIG. 9 is a schematic diagram showing a specific example of changes in the display mode of the display device 3 by the display control process of the electronic keyboard instrument 1 according to the first embodiment. FIG. 9(A) shows the appearance of the keyboard 2 before the key areas KR1 and KR2 are set as in FIG. 5, the electronic keyboard instrument 1 is set to an operation mode using the split function, and the keyboard 2 is operated by the performer. FIG. 9(B) shows the appearance of the keyboard 2 after the keyboard 2 is operated after the operation mode is set.

[0068] As shown in FIG. 9(A), immediately after the operation mode is set, the LED 11a corresponding to the key area KR1 is set to a blue lit state, and the LED 11b corresponding to the key area KR2 is set to a red lit state. In this example, in this state, the key 10a included in the key area KR1 is operated (key press). Then, the CPU 20 detects that the key 10a included in the key area KR1 has been operated (steps ST101 and ST102), and sets the key area KR1 as the active key area AKR (step ST103). Accordingly, as shown in FIG. 9(B), the CPU 20 reduces the illuminance of the LED 11a corresponding to the key area KR1 set as the active key area AKR, and sets the LED 11a to, for example, a blue extinguished state (step ST13). At this time, the red lit state is maintained for the LED 11b corresponding to the other key area OKR.

[0069] Although illustration is omitted, after the state shown in FIG. 9(B), when the key 10b included in the key area KR2 is operated (key pressed), the CPU 20 detects that the key 10a included in the key area KR1 has been operated (steps ST101 and ST102), and changes the active key area AKR from the key area KR1 to the key area KR2 (step ST103). In this case, the CPU 20 reduces the illuminance of the LED 11b corresponding to the key area KR2 set in the active key area AKR, sets the LED 11b to, for example, a red dimmed state, and increases the illuminance of the LED 11a corresponding to the key area KR1 set in the other key area OKR, and sets the LED 11a to a blue lit state (step ST13).

[0070] [1-3] Effects of the First Embodiment According to the electronic keyboard instrument 1 according to the first embodiment described above, the load on the visual sense during performance can be reduced. Hereinafter, the details of the effects of the electronic keyboard instrument 1 according to the first embodiment will be described.

[0071] An electronic keyboard instrument is known in which an LED 11 is mounted for each key 10, and the split setting is notified to the performer by the lit state, illuminance, and lit color of the LED 11. When the split function is used in such an electronic keyboard instrument, the key area KR that the performer pays attention to is, for example, considered to be the one that was last operated. Also, in the operation mode using the split function, when the performer presses the key 10 of a certain key area KR, the performer can know the tone color setting of that key area KR from the sound emitted from the electronic keyboard instrument 1. For this reason, in the key area KR that was last key pressed, the importance of notifying the split setting using the display device 3 is reduced.

[0072] Therefore, when the split function is used, the electronic keyboard instrument 1 according to the first embodiment reduces the illuminance of the LED 11 corresponding to the key area KR (active key area AKR) including the key 10 that was last pressed, that is, the key area that the player is considered to be most focused on, to turn off or dim the LED, and sets the LED 11 corresponding to the other key area OKR to the lit state. In other words, the CPU 20 instructs the display device 3 to dim or turn off the LED 11 (display unit) corresponding to the key area KR including the operated key 10, and instructs the LED 11 (display unit) corresponding to the key area KR other than the key area KR to light up. In this case, since the key area KR other than the active key area AKR (other key area OKR) is in the lit state, the player can determine that the key area KR corresponding to the off or dim state has the same setting as the tone currently being played.

[0073] Also, when a key 10 in the key area KR corresponding to the LED 11 set to the lit state is pressed while the key area KR in the off or dim state is set in the electronic keyboard instrument 1 according to the first embodiment, the LED 11 in the key area KR is set to the off or dim state, and the LED 11 in the key area KR previously set to the off or dim state is set to the lit state. In this way, when the key area KR that the player focuses on changes, the electronic keyboard instrument 1 according to the first embodiment updates the setting of the active key area AKR according to the player's operation, and sets the key area KR that the player is considered to be currently focusing on to a setting (off or dim state) that reduces the load on the player's vision.

[0074] As a result, the electronic keyboard instrument 1 according to the first embodiment can reduce the load on the player's vision caused by the continuous emission of the LED 11 while the key area KR that the player focuses on is grasped by the player. In addition, since the electronic keyboard instrument 1 according to the first embodiment sets the LED 11 in the key area KR that the player is focusing on to a state with a small load on the player according to the playing situation by the player, the load on the player can be further reduced, and the player can concentrate on the performance.

[0075] [2] Second Embodiment When the split function is used, the electronic keyboard instrument 1 according to the second embodiment has a function of changing the display mode of the display device 3 corresponding to the key range KR with a high operation frequency of the user. Hereinafter, the details of the electronic keyboard instrument 1 according to the second embodiment will be described.

[0076] [2-1] Configuration In the electronic keyboard instrument 1 according to the second embodiment, the RAM 23 stores the keyboard operation log 231 so that the CPU 20 executes the active key range determination process described later.

[0077] FIG. 10 is a table showing an example of the keyboard operation log 231 stored in the RAM 23 provided in the electronic keyboard instrument 1 according to the second embodiment. As shown in FIG. 10, in the keyboard operation log 231, for example, for each key number KN, information on the key range KR and information on the number of operations Nop are recorded. The information stored in the keyboard operation log 231 can be appropriately updated by the CPU 20. The number of operations Nop corresponds to the number of times the key 10 of the associated key number KN has been operated (key pressed). Other configurations of the electronic keyboard instrument 1 according to the second embodiment are the same as those of the electronic keyboard instrument 1 according to the first embodiment.

[0078] [2-2] Operation FIG. 11 is a flowchart showing an example of the active key range determination process of the electronic keyboard instrument 1 according to the second embodiment. Hereinafter, with reference to FIG. 11, the active key range determination process of the electronic keyboard instrument 1 according to the second embodiment will be described.

[0079] When the active key range determination process starts, the CPU 20 checks whether the split setting S1 has been changed from the previous cycle process (step ST201).

[0080] When the split setting S1 is changed from the previous periodic process (step ST201, YES), the CPU 20 clears the keyboard operation log 231 (step ST202). Specifically, for example, the CPU 20 substitutes zero for the number of operations Nop of each key number KN in the keyboard operation log 231. In other words, the count of the number of key presses of each key number KN in the keyboard operation log 231 is reset. When the process of step ST202 is completed, the CPU 20 proceeds to the process of step ST203.

[0081] When the split setting S1 is not changed from the previous periodic process (step ST201, NO), the CPU 20 proceeds to the process of step ST203.

[0082] In the process of step ST203, the CPU 20 updates the keyboard operation log 231 based on the information of the key 10 operated between the previous periodic process and the current periodic process. Specifically, for example, when the CPU 20 detects that a certain key 10 has been pressed by the key scanner 27, the CPU 20 increments the number of operations Nop of the key number KN corresponding to the key 10.

[0083] Next, the CPU 20 calculates the total number of operations Ntotal for each key area KR by referring to the keyboard operation log 231 (step ST204). Specifically, the CPU 20 calculates the total value of the number of operations Nop of the key number KN corresponding to the key area KR as the total number of operations Ntotal for each key area KR.

[0084] Next, the CPU 20 determines the most active key area AKR as the key area KR with the largest total number of operations Ntotal (step ST205). Specifically, by comparing the total number of operations Ntotal for each key area KR calculated in step S204, the key area KR with the largest numerical value of Ntotal is determined as the active key area AKR. When the process of step ST205 is completed, the CPU 20 ends the series of processes in FIG. 11 (return). Other operations of the electronic keyboard instrument 1 according to the second embodiment are the same as those of the electronic keyboard instrument 1 according to the first embodiment.

[0085] In the second embodiment, the case where the CPU 20 refers to the cumulative value of the number of operations (key presses) of the key 10 from when the operation mode is set until now has been illustrated, but it is not limited to this. The CPU 20 may record numerical values based on the past M key presses (where M is an integer of 1 or more) in the keyboard operation log 231, or may record numerical values based on key presses during a predetermined time from now. The keyboard operation log 231 may be provided for each operation mode, and may be saved in the storage device 24 during the shutdown process of the electronic keyboard instrument 1. In this case, the keyboard operation log 231 for each operation mode stored in the storage device 24 is read into the RAM 23, for example, when the power of the electronic keyboard instrument 1 is turned on next. The electronic keyboard instrument 1 according to the second embodiment only needs to record the number of key presses at least for each key range KR and change the setting of the active key range AKR (the setting of the LED 11 to be turned off or dimmed) based on the number of key presses.

[0086] [2-3] Effects of the Second Embodiment The electronic keyboard instrument 1 according to the second embodiment uses the number of operations (key presses) for each key range KR as a determination condition for the key range KR that the performer is paying attention to. In other words, the CPU 20 sets the key range KR with the most key presses as the key range KR that the performer is most paying attention to in the active key range AKR. Then, the CPU 20 sets the LED 11 of the active key range AKR to the off or dim state in the same manner as in the first embodiment. As a result, the electronic keyboard instrument 1 according to the second embodiment can obtain the same effects as the electronic keyboard instrument 1 according to the first embodiment.

[0087] [3] Third Embodiment The electronic keyboard instrument 1 according to the third embodiment has the same configuration as the electronic keyboard instrument 1 according to the first embodiment. And the electronic keyboard instrument 1 according to the third embodiment has a function of changing the display mode of the display device 3 based on the width of each set key range KR when the split function is used. The details of the electronic keyboard instrument 1 according to the third embodiment will be described below.

[0088] [3-1] Operation FIG. 12 is a flowchart showing an example of the active key range determination process of the electronic keyboard instrument 1 according to the third embodiment. Hereinafter, with reference to FIG. 12, the active key range determination process of the electronic keyboard instrument 1 according to the third embodiment will be described.

[0089] When the active key range determination process starts, the CPU 20 checks whether the split setting S1 has been changed from the previous cycle process (step ST301). The details of the process in step ST301 are the same as, for example, the process in step ST201 described in the second embodiment.

[0090] If the split setting S1 has been changed from the previous cycle process (step ST302, YES), the CPU 20 sets the widest key range KR as the active key range AKR (step ST302). Specifically, the CPU 20 refers to the setting data of the current operation mode, for example, checks the width of each key range KR, and sets the key range KR with the largest parameter of the width of the key range KR as the active key range AKR. When the process in step ST302 is completed, the CPU 20 ends the series of processes in FIG. 12 (return).

[0091] If the split setting S1 has not been changed from the previous cycle process (step ST201, NO), the CPU 20 ends the series of processes in FIG. 12 (return). Other operations of the electronic keyboard instrument 1 according to the third embodiment are the same as those of the electronic keyboard instrument 1 according to the first embodiment.

[0092] Note that the timing at which the electronic keyboard instrument 1 according to the third embodiment turns off or dims the LED 11 of the active key range AKR may be the time when the operation mode is applied, or may be only during performance. This "during performance" corresponds to the period during which the keyboard 2 is being operated. For example, when the keyboard 2 has not been operated for a predetermined time, the CPU 20 may determine that it is not during performance and change the LED 11 corresponding to the active key range AKR to the lit state.

[0093] [3-2] Effects of the Third Embodiment The electronic keyboard instrument 1 according to the third embodiment uses information on the width of the key range KR as a determination condition for the key range KR that the performer is focusing on. In other words, the CPU 20 sets the widest key range KR as the key range KR with the most performance opportunities by the performer and sets it as the active key range AKR. Then, similar to the first embodiment, the CPU 20 sets the LEDs 11 of the active key range AKR to the off or extinguished state. As a result, the electronic keyboard instrument 1 according to the third embodiment can obtain the same effects as the electronic keyboard instrument 1 according to the first embodiment.

[0094] [4] Fourth Embodiment The electronic keyboard instrument 1 according to the fourth embodiment has the same configuration as the electronic keyboard instrument 1 according to the first embodiment. And the electronic keyboard instrument 1 according to the fourth embodiment has a function of changing the display mode of the display device 3 for each group of the key ranges KR when the split function is used. The details of the electronic keyboard instrument 1 according to the fourth embodiment will be described below.

[0095] [4-1] Operation In the electronic keyboard instrument 1 according to the fourth embodiment, a plurality of key ranges KR are classified into at least two types of groups GR. For example, in the electronic keyboard instrument 1 according to the fourth embodiment, three or more key ranges KR are set along the extension direction of the keyboard 2, and are classified into two groups GR: a group GR including the even-numbered key ranges KR and a group GR including the odd-numbered key ranges KR.

[0096] FIG. 13 is a flowchart showing an example of the display control process of the electronic keyboard instrument 1 according to the fourth embodiment. The display control process of the electronic keyboard instrument 1 according to the fourth embodiment will be described below with reference to FIG. 13.

[0097] When the display control process starts, the CPU 20 executes the active key range determination process in the same manner as in the first embodiment (step ST10).

[0098] Next, the CPU 20 checks whether the active key range AKR has been changed in the same manner as in the first embodiment (step ST11).

[0099] When the active key area AKR has not been changed (step ST11, NO), the CPU 20 ends the series of processes in FIG. 13 (returns).

[0100] When the active key area AKR has been changed (step ST11, YES), the CPU 20 proceeds to the process of step ST12.

[0101] In the process of step ST12, the CPU 20 checks whether the LED 11 corresponding to the active key area AKR is in the lit state, as in the first embodiment.

[0102] When the LED 11 corresponding to the active key area AKR is not in the lit state (step ST12, NO), the CPU 20 ends the series of processes in FIG. 13 (returns).

[0103] When the LED 11 corresponding to the active key area AKR is in the lit state (step ST12, YES), the CPU 20 proceeds to the process of step ST20.

[0104] In the process of step ST20, the CPU 20 sets the LED 11 corresponding to the active key area AKR and the LED 11 corresponding to the key area KR of the same group GR as the active key area AKR to the off state or the dimmed state, and sets the LED 11 corresponding to the key area KR of a group GR different from the active key area AKR to the lit state. When the process of step ST20 is completed, the CPU 20 ends the series of processes in FIG. 13 (returns). Other operations of the electronic keyboard instrument 1 according to the fourth embodiment are the same as those of the electronic keyboard instrument 1 according to the first embodiment.

[0105] (Specific example of display control process) FIG. 14 is a schematic diagram showing an example of a change in the display mode of a display device by the display control process of the electronic keyboard instrument 1 according to the fourth embodiment. FIGS. 14(A) and (B) show an example of the appearance of the keyboard 2 when the key regions KR1, KR2, KR3, and KR4 are set. In this example, the odd-numbered key regions KR1 and KR3 are classified into the first group, and the even-numbered key regions KR2 and KR4 are classified into the second group. In the fourth embodiment, the keys 10 included in the first and second groups are referred to as keys 10o and 10e, respectively, and the LEDs 11 included in the first and second groups are referred to as LEDs 11o and 11e, respectively.

[0106] In the state shown in FIG. 14(A), the LEDs 11o of the first group are set to the lit state, and the LEDs 11e of the second group are set to the off state. This state is the same as the state in which the key region KR2 or KR4 of the second group GR2 is set as the active key region AKR. In this example, in this state, the key 10o included in the key region KR1 is operated (key pressed). Then, the CPU 20, in the same manner as in the first embodiment, sets the key region KR1 belonging to the first group as the active key region AKR based on the fact that the key 10o included in the key region KR1 has been operated. Further, the CPU 20 sets the LEDs 11o of the first group to the off state and sets the LEDs 11e of each key region KR of the second group to the lit state as shown in FIG. 14(B) based on the fact that the active key region AKR has been changed to the key region KR1 (step ST20).

[0107] Although not shown, after the state shown in FIG. 14(B), when the key 10e included in the key region KR2 is operated (key pressed), the CPU 20 sets the key region KR2 belonging to the second group as the active key region AKR based on the fact that the key 10e has been operated. Then, the CPU 20 sets the LEDs 11e of the second group to the off state and sets the LEDs 11o of each key region KR of the first group to the lit state based on the fact that the active key region AKR has been changed to the key region KR2 (step ST20).

[0108] Note that the control method of the display device 3 described in the fourth embodiment is also applicable when a monochromatic LED 11 is mounted on the electronic keyboard instrument 1. Further, the electronic keyboard instrument 1 according to the fourth embodiment may utilize the active key range determination process described in the second embodiment. In this case, the CPU 20 controls the lighting state of the LED 11 for each group GR based on the key range KR with a large number of key presses. Further, the CPU 20 may calculate the total number of operations Ntotal for each group GR and manage the setting of the active key range AKR in association with the group GR. Further, the electronic keyboard instrument 1 according to the fourth embodiment may be combined with the third embodiment. When the fourth embodiment and the third embodiment are combined, the CPU 20 sets, for example, the display mode of the display device 3 immediately after setting the operation mode based on the active key range determination process of the third embodiment. That is, the CPU 20 determines the widest key range KR as the active key range AKR and sets the key ranges KR of the same group to the off or dimmed state.

[0109] [4-2] Effects of the Fourth Embodiment When the LED 11 in a certain key range KR is in the lit state, the electronic keyboard instrument 1 according to the fourth embodiment sets the LED 11 in the adjacent key range KR to the off or dimmed state and sets the LED 11 in the further adjacent key range KR to the lit state. Thereby, when there are three or more key ranges KR, the performer can know the position and the boundary portion of the key range KR. And the electronic keyboard instrument 1 according to the fourth embodiment can similarly notify the performer of the position and the boundary portion of the key range KR even when the display device 3 is configured by the monochromatic LED 11.

[0110] In addition, when a key 10 in a key range KR corresponding to a turned-off or dimmed state is pressed on the electronic keyboard instrument 1 according to the fourth embodiment, the states of the respective LEDs 11 are maintained. On the other hand, when a key 10 in a key range KR corresponding to a lit state is pressed, the CPU 20 reverses the lit state and the turned-off or dimmed state in each LED 11 of the display device 3. Specifically, when it is currently in the lit state, the LED 11 in that key range KR is set to the turned-off or dimmed state, the LED 11 in the key range KR adjacent to that key range KR is set to the lit state, and the LED 11 in the key range KR further adjacent thereto is set to the turned-off or dimmed state. As a result, the electronic keyboard instrument 1 according to the fourth embodiment can obtain the same effects as the electronic keyboard instrument 1 according to the first embodiment.

[0111] [5] Fifth Embodiment The electronic keyboard instrument 1 according to the fifth embodiment has the same configuration as the electronic keyboard instrument 1 according to the first embodiment. And the electronic keyboard instrument 1 according to the fifth embodiment has a function of changing the display mode of the display device 3 according to the operation of the input unit 5 when split setting is used. Hereinafter, the details of the electronic keyboard instrument 1 according to the fifth embodiment will be described.

[0112] [5-1] Operation FIG. 15 is a flowchart showing an example of the display control process of the electronic keyboard instrument 1 according to the fifth embodiment. Hereinafter, with reference to FIG. 15, the display control process of the electronic keyboard instrument 1 according to the fifth embodiment will be described.

[0113] When the display control process starts, the CPU 20 checks whether a predetermined operation has been executed (step ST30). As an example of the predetermined operation, for example, a specific switch of the input unit 5 has been operated. It is not limited to this, and the predetermined operation may be associated with, for example, a signal input from an operation device (for example, a foot pedal) externally connected to the electronic keyboard instrument 1.

[0114] When a predetermined operation is executed (step ST30, YES), the CPU 20 sets the LED 11 that is lit at the start of step ST30 to the off state or the dimmed state, and sets the LED 11 that is in the off state or the dimmed state at the start of step ST30 to the lit state (step ST31). That is, in the process of step ST31, the display state is reversed for each LED 11. "The display state is reversed" corresponds to, for example, the LED 11 in the lit state being set to the off state or the dimmed state, and the LED 11 in the off state or the dimmed state being set to the lit state. When the process of step ST31 is completed, the CPU 20 ends the series of processes in FIG. 15 (returns).

[0115] When a predetermined operation is not executed (step ST30, NO), the CPU 20 ends the series of processes in FIG. 15 (returns). Other operations of the electronic keyboard instrument 1 according to the fifth embodiment are the same as those of the electronic keyboard instrument 1 according to the first embodiment.

[0116] (Specific example of display control process) FIG. 16 is a schematic diagram showing an example of a change in the display mode of the display device by the display control process of the electronic keyboard instrument 1 according to the fifth embodiment. FIGS. 16(A) and (B) show the appearance of the electronic keyboard instrument 1 before and after the input unit 5 is operated by the performer.

[0117] As shown in FIG. 16(A), in this example, the LEDs 11 in the key ranges KR1 and KR3 are set to the lit state, and the LEDs 11 in the key ranges KR2 and KR4 are set to the off state. In this example, in this state, a button associated with a change in the display mode is operated on the input unit 5. Then, as shown in FIG. 16(B), the CPU 20 reverses the display mode of the display device 3. Specifically, the LEDs 11 in the key ranges KR2 and KR4 are set to the lit state, and the LEDs 11 in the key ranges KR1 and KR3 are set to the off state (step ST31).

[0118] [5-2] Effects of the fifth embodiment The electronic keyboard instrument 1 according to the fifth embodiment reverses, for example, the display mode of the display device 3 based on a predetermined operation. As a result, the electronic keyboard instrument 1 according to the fifth embodiment can change the display mode of the display device 3 at the timing desired by the performer, and for example, can improve the immersion feeling of the performer in the performance.

[0119] [6]Other modification examples and the like In the first to fourth embodiments, the case where the LED 11 corresponding to the active key range AKR is turned off or extinguished has been exemplified, but the present invention is not limited to this. For example, the CPU 20 may increase the illuminance of the LED 11 corresponding to the active key range AKR. In this case, the LED 11 in the active key range AKR is set to be brighter than the LED 11 in the other key ranges OKR. When the performer prefers the LED 11 in the active key range AKR to be prominent, the display device 3 may be controlled in this way. Further, the CPU 20 may change the display color of the LED 11 in the active key range AKR. The electronic keyboard instrument 1 sets the active key range AKR as described in the first to fourth embodiments, and it is sufficient that at least the display mode of the LED 11 in the active key range AKR can be customized according to the preference of the user (performer). In any of the first to fourth embodiments, the number of key ranges KR can be set to any number (three or more). The setting change of the key range KR is possible not only before the performance but also during the performance.

[0120] In each embodiment, the case where the CPU 20 applies the same setting to the LED 11 for each key range KR has been exemplified, but the present invention is not limited to this. For example, the CPU 20 maintains the LED 11 associated with the key 10 arranged at the boundary portion between adjacent key ranges KR in the lit state regardless of the presence or absence of the setting of the active key range AKR, sets it to a more prominent homologous color within the key range KR, or sets it to a state where the illuminance is higher than that of the other keys 10 within the same key range KR. Thereby, it becomes easier for the performer to distinguish between adjacent key ranges KR. The color assigned to each key range KR is not limited to the colors used in the description of each embodiment.

[0121] Note that the LED 11 of the display device 3 may be embedded in the key 10 instead of being arranged directly below the key 10. The display device 3 may use other light-emitting elements such as organic EL instead of the LED 11. Further, the display device 3 may be constituted by a reflective display provided for each key 10 as long as it can be visually recognized by the performer, or may be realized by a projector capable of projecting an image in the vicinity of the keyboard 2. The LED controller 26 can be replaced according to the specifications of the display device 3 mounted on the electronic keyboard instrument 1. The display of the display device 3 may be arranged above the keyboard or below the keyboard. Each display only needs to be arranged so that the association with at least the associated key 10 can be easily confirmed by the performer.

[0122] Note that, for the notification of the key range KR when the split setting is used, only the white keys of the keyboard 2 may be used. Even when the notification of the split setting by the LED 11 associated with the black keys of the keyboard 2 is omitted, the performer can roughly grasp the position of the key range. Also, when the display mode of the LED 11 is changed as described in each embodiment, the lighting state of the LED 11 may be changed immediately or may be changed little by little according to the elapsed time. Further, when the keyboard 2 is not operated for a predetermined time, that is, when all the keys 10 of the keyboard 2 are in the key-off state for a predetermined period, the CPU 20 may maintain the LED 11 of the active key range AKR in the off or dimmed state, or may return it to the lit state.

[0123] The operation of the electronic keyboard instrument 1 described in each embodiment may be realized in software. For example, software installed in a tablet PC or the like may use the keyboard represented on the display to realize the operations described in each embodiment. In this case, each of the keyboard 2 and the display device 3 corresponds to a part of the display area of the display. And the operation of the display of the display device 3 may be realized by, for example, image processing superimposed on the display part of the keyboard 2.

[0124] In this specification, the CPU 20 included in the electronic keyboard instrument 1 may be other circuits. For example, instead of the CPU 20, an MPU (Micro Processing Unit), an ASIC (Application Specific Integrated Circuit), an FPGA (field-programmable gate array), or the like may be used. A DSP (Digital Signal Processor) specialized for processing digital audio signals and the like can also be regarded as a processor. Further, each of the processes described in each embodiment may be realized by dedicated hardware. The processes described in each embodiment may be a mixture of processes executed by software and processes executed by hardware, or may be only one of them. In each embodiment, the flowcharts and data tables used in the description of the operations are merely examples. Each operation described using the flowchart may be rearranged within the possible range of the processing order, or other processes may be added.

[0125] In this specification, the CPU 20 setting the LED 11 to the lit state corresponds to driving (applying a voltage to) the driver of the LED 11 so that the LED 11 is in the lit state. The brightness of the LED 11 changes according to the voltage applied to the LED 11. In this specification, the portion associated with the key area KR of the display device 3 may be referred to as the "display portion". That is, for example, the first key area KR1 and the second key area KR2 are associated with the first display portion and the second display portion of the display device 3, respectively. And each display portion includes a plurality of displays. In this specification, "connection" corresponds to a state in which data communication is possible. If the CPU 20 can realize the operations described in the above embodiments used in the description of the embodiments, it does not have to use the flag called "active key area AKR".

[0126] Also, the technical scope of the present invention includes various modifications and improvements within the range in which the object of the present invention is achieved, which is obvious to those skilled in the art from the description of the claims.

[0127] The invention described in the claims first attached to the application form of this application is appended below. The item numbers of the claims described in the appendix are as in the claims first attached to the application form of this application.

[0128] [7]Appendix [Claim 1] A keyboard having a plurality of first keys included in a first key range corresponding to a first tone color and a plurality of second keys included in a second key range corresponding to a second tone color; A display device having a first display unit corresponding to the first key range and a second display unit corresponding to the second key range; At least one processor that determines a display mode of the display device based on a user operation on the keyboard; An electronic keyboard instrument comprising: [Claim 2] The at least one processor instructs the display unit corresponding to the key range including the operated key on the display device to dim, including turning off the light. The electronic keyboard instrument according to claim 1. [Claim 3] The setting of the first key range and the setting of the second key range are changeable. The electronic keyboard instrument according to claim 2. [Claim 4] The instruction to dim, including turning off the light, by the at least one processor is based on a comparison result between the number of key presses in the first key range and the number of key presses in the second key range. The electronic keyboard instrument according to claim 2 or claim 3. [Claim 5] When the settings of the first key range and the second key range are changed, the at least one processor resets the respective counts of the number of key presses in the first key range and the number of key presses in the second key range. The electronic keyboard instrument according to claim 4. [Claim 6] A keyboard having a plurality of first keys included in a first key range corresponding to a first tone color and a plurality of second keys included in a second key range corresponding to a second tone color; A display device having a first display unit corresponding to the first key area and a second display unit corresponding to the second key area, and at least one processor that determines a display mode of the display device based on the respective sizes of the first key area and the second key area, An electronic keyboard instrument comprising the above. [Claim 7] Setting a plurality of first keys included in a first key area corresponding to a first timbre and a plurality of second keys included in a second key area corresponding to a second timbre on a keyboard, and determining a display mode of a first display unit corresponding to the first key area and a second display unit corresponding to the second key area based on a user operation on the keyboard. A control method for an electronic keyboard instrument comprising the above. [Claim 8] Causing a computer to set a plurality of first keys included in a first key area corresponding to a first timbre and a plurality of second keys included in a second key area corresponding to a second timbre on a keyboard, and determine a display mode of a first display unit corresponding to the first key area and a second display unit corresponding to the second key area based on a user operation on the keyboard. A control program for an electronic keyboard instrument that causes the above to be executed.

Explanation of Signs

[0129] 1... Electronic keyboard instrument, 2... Keyboard, 3... Display device, 4... LCD, 5... Input unit, 6... Speaker, 10... Keys, 11... LED, 20... CPU, 21... Timer, 22... ROM, 23... RAM, 24... Storage device, 25... LCD controller, 26... LED controller, 27... Key scanner, 28... Sound source, 30... Amplifier, 31... Bus, 220... Control program, 221... Mode selection program, 222... LED control program, 230... Setting data, 231... Keyboard operation log, KR... Key area, AKR... Active key area, OKR... Other key area, S1... Split setting, S2... Timbre setting, S3... LED setting.

Claims

1. A keyboard capable of at least setting a first key range corresponding to a first timbre and a second key range corresponding to a second timbre, A display device for identifying the first key range and the second key range, At least one processor, The at least one processor Based on a user operation on the keyboard, instructs dimming including turning off the display unit corresponding to the key range including the operated key among the lit display units of the display device. An electronic keyboard instrument.

2. A keyboard capable of at least setting a first key range corresponding to a first timbre and a second key range corresponding to a second timbre, A display device for identifying the first key range and the second key range, At least one processor, The at least one processor Compares the number of key presses in the first key range with the number of key presses in the second key range, Based on the comparison result, instructs a change in the display mode of the display device. An electronic keyboard instrument.

3. When the settings of the first key range and the second key range are changed, each count of the number of key presses in the first key range and the number of key presses in the second key range is reset. The electronic keyboard instrument according to Claim 2.

4. A keyboard having a plurality of first keys included in a first key range corresponding to a first timbre and a plurality of second keys included in a second key range corresponding to a second timbre, A display device having a first display unit corresponding to the first key range and a second display unit corresponding to the second key range, At least one processor that determines the display mode of the display device based on the respective widths of the first key range and the second key range. An electronic keyboard instrument comprising.

5. A processor of an electronic keyboard instrument provided with a display device for at least identifying a first key range corresponding to a first timbre and a second key range corresponding to a second timbre, Based on a user operation on the keyboard, instructs dimming including turning off the display unit corresponding to the key range including the operated key among the lit display units of the display device. A control method for an electronic keyboard instrument.

6. A processor of an electronic keyboard instrument provided with a display device for at least identifying a first key range corresponding to a first timbre and a second key range corresponding to a second timbre, Compares the number of key presses in the first key range with the number of key presses in the second key range, Based on the comparison result, instructs a change in the display mode of the display device. The control method for an electronic keyboard instrument according to Claim 5.

7. A processor of an electronic keyboard instrument including a display device for at least identifying a first key range corresponding to a first timbre and a second key range corresponding to a second timbre, based on a user operation on the keyboard, instructs dimming including turning off a display unit that is lit on the display device and corresponds to a key range including the operated key. A control program for an electronic keyboard instrument for executing processing. **Claim 8** A processor of an electronic keyboard instrument including a display device for at least identifying a first key range corresponding to a first timbre and a second key range corresponding to a second timbre, compares the number of key presses in the first key range with the number of key presses in the second key range, and based on the comparison result, instructs a change in the display mode of the display device. The control program for an electronic keyboard instrument according to claim 7.

Images