JPH05265447A - Electronic musical instrument capable of deciding finger of hand operating keyboard - Google Patents

Abstract

PURPOSE:To decide a finger of a hand of a player who operates the keyboard by comparing a pressed or released key with the key which has the proximity switch detecting the finger when the key is pressed or released. CONSTITUTION:Proximity switches 20 are installed in the respective keys and set at a reference distance so that they react to the finger tips of the player, but do not react to the palms, and when the player puts both the hands on the keyboard 10, the finger tips of the player are detected by the proximity switches 20 installed in the respective keys just below the fingers. Then the player has the little finger, third finger, middle finger, index finger, and thumb of the left hand and the thumb, index finger, middle finger, third finger, and little finger of the right hand from the left. It is therefore decided which key all the fingers from the little finger of the left hand to the little finger of the right hand are put on, i.e., that the little finger of the left hand is on the most leftward key among the 10 keys having the proximity switches detecting the 10 fingers put on the keyboard 10 and the third finger of the left hand is the next key.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic musical instrument for operating a keyboard to generate a musical tone.

[0002]

2. Description of the Related Art Players have different powers on either the left or right hand, and the powers of the little finger and the ring finger are weaker than other fingers. Therefore, the force and speed at which the keys are pressed differ depending on the finger that operates the keys (the same applies to key depression and key release), and it is not possible to perform as intended. Therefore, it is desirable to perform different tone correction depending on the finger of the player who operates the key. However, since it is difficult to determine which finger of the left or right hand the player operated the key, data relating to musical tone control such as touch data has not been corrected for each finger.

Also, different tones are set and placed for each finger,
If different fingers operating the keys of the keyboard generate different tones, a variety of performances are possible. However, in the conventional technique, it is difficult to determine which finger the player has used to operate the keys of the keyboard, so that different tone colors are not set for each finger.

[0004]

Therefore, when a key on the keyboard of an electronic musical instrument is operated, an electronic musical instrument is required which can determine which of the left and right hands the finger operating the key is.

[0005]

[Means for Solving the Problem] A player plays an electronic musical instrument by operating the keyboard while holding both hands over the keyboard. Then, the operation of a certain key is performed by the finger directly above the operated key. Therefore, in order to determine which finger of the left or right hand of the player operated the key operated, the finger held over the key immediately before the operation is the left or right of the player. It only needs to be able to determine which finger of which hand. Therefore, in the present invention, which finger of the player's left or right hand operated the key is determined as follows.

A finger detecting means for reacting when the fingertips of the player's hand and a key approach within a reference distance is provided in each key, and the finger detecting means reacts to the fingertips of the player. If you set the reference distance so that does not react to the palm,
When the performer holds both hands over the keyboard, the fingertips of the performer's hand are detected by the finger detecting means provided at each key immediately below.

By the way, except in the special case where the player crosses his hands, the player's finger is from the left to the little finger of the left hand,
The ring finger, middle finger, index finger, thumb, right thumb, index finger, middle finger, ring finger, and little finger are arranged in this order. Therefore, the left little finger is on the leftmost key and the left ring finger is on the next key among the ten keys having finger detection means for detecting ten fingers held by the player on the keyboard. As such, it can be determined which key all fingers from the little finger of the left hand to the little finger of the right hand are on.

If the finger held over each key can be determined in this way, as described above, the same key is operated with the finger held over a certain key.
When any one of the keys is operated, it can be determined by which finger of the left or right hand the key is operated.

According to the present invention, an electronic musical instrument is provided with the above-mentioned finger determining means, and means is provided with means for performing different control relating to musical tone generation in accordance with the finger of the player's hand determined by the finger determining means. Is.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS About one embodiment of the present invention (hereinafter referred to as this embodiment) (1) detection means for detecting fingers of a player's hand, (2) determination method of fingers of a player's hand, (3) this embodiment Example block diagram,
(4) The processing operation of this embodiment will be described separately.

(1) Detecting means for detecting the finger of the player's hand In the present invention, in order to detect that the finger of the player's hand approaches the keyboard, the distance between the sensor and the object (finger in this case) is detected. It uses a non-contact sensor that detects the distance between. Non-contact type sensors include those that use light, infrared rays, ultrasonic waves, electromagnetic waves, and those that detect changes in capacitance. Of these, in the present embodiment, a differential capacitance type sensor (Japanese Utility Model Publication No. 63-36246) is used, but it is not limited to this, and it responds to the fingers of the player's hand. If so, it can be used in the present invention. The sensor used in this embodiment is on when the distance between the detection unit and the object (finger in this case) is within the reference range, and is off when the distance between the detection unit and the object (finger in this case) is more than the reference, Acts as a switch. Therefore, hereinafter, this sensor is referred to as a proximity switch.

Turning on / off of the proximity switch 20 when an object (a finger in this case) approaches the proximity switch detection unit 21 in FIG.
The state of change of the off state is shown. 2 is aa of FIG.
FIG. When the object (finger in this case) enters the ON area in the figure, the proximity switch is turned on, and when there is no object (finger in this case) in the ON area, it is turned off.
The range of the ON region can be changed by changing the variable resistance of the proximity switch body.

FIG. 3 is a plan view showing a state where the player presses the key (black key) of this embodiment with the middle finger of the left hand. 4 is a left side view of FIG. In this embodiment, as shown in FIG. 3, one proximity switch detector 21 is installed for each key, and the proximity switch main body is installed inside the keyboard. The proximity switch detection unit 21 is installed on each key in a slender manner so that the finger can be detected even if the fingertip moves back and forth (see FIG. 3), and one finger does not react to the two proximity switches. , The ON areas of adjacent proximity switches are spaced apart (see FIG. 2). The proximity switch on the white key is, as shown in FIG.
The on area is set so that it reacts to the fingertips but not to the palm.

(2) Judgment method of fingers of the player's hand When the player turns on the electronic musical instrument and operates the keyboard to perform a performance, the fingertip of the hand held by the player on the keyboard is
Within a certain area from the keyboard. Therefore, as shown in FIG. 4, if the ON area of the proximity switch detection unit installed on each key is matched with the above-mentioned certain area, the fingers of the player's hand will be
Since it is in the ON area, the proximity switch immediately below is in the ON state as shown in FIG.

Since the detection unit of the proximity switch has a one-to-one correspondence with each key, if the proximity switch in the ON state can be determined, the leftmost key among the keys having the proximity switch in the ON state. There will be the little finger of the left hand above, and then the ring finger of the left hand above the key to the left. In this way, it is possible to determine which finger of the performer is on the right or left.

Since each key on the keyboard is operated by the finger placed right above the key, it is possible to determine which finger of which hand the player operated the key.

(3) Block diagram of the present embodiment FIG. 5 is a block diagram showing an outline of the overall construction of the first embodiment.

In FIG. 5, reference numeral 10 denotes a keyboard, which detects a key depression / key release operation by the performer and supplies it to the tone generation circuit 14. The keyboard 10 includes a plurality of keys, a key switch that opens / closes in conjunction with key press / release of these keys, and a key scanning circuit that detects the open / closed state of these key switches. Further, as a feature of the present invention, a proximity switch scan circuit for detecting the on / off state of each proximity switch is incorporated.

An operation panel 11 is a display 1 for displaying various switches and messages for controlling the electronic musical instrument.
2 etc. are provided.

Since the switches in the operation panel 11 have little relation to the present invention, these switches are collectively referred to as SW1.

A central processing unit (CPU) 13 controls each part of the electronic musical instrument in accordance with a control program stored in a ROM (read only memory) (not shown). The CPU compares the data stored in the hand map memory 18 and the key map memory 19, which will be described later, to determine the finger of the player's hand who has operated the keyboard, corrects the musical tone control information such as touch data, and reproduces the musical tone. It is supplied to the generation circuit 14.

Reference numeral 14 is a tone generation circuit, which reads tone waveform data and envelope data corresponding to the tone color designated by the control data output from the keyboard 10 or the CPU 13 from the waveform memory 15 and applies an envelope to the read tone waveform data. It is added and output as a musical tone signal. The musical tone signal output by the musical tone generating circuit 14 is supplied to the amplifier 16.

Reference numeral 15 is a waveform memory for storing the tone waveform data and envelope data corresponding to each tone color as described above.

Reference numeral 16 denotes an amplifier, which amplifies the musical tone signal supplied from the musical tone generating circuit 14 with a predetermined gain and supplies it to the speaker 17.

Reference numeral 18 is a hand map memory. The hand map memory has as many RAMs as there are keys on the keyboard 10.
There is (random access memory), and the on / off state of the proximity switch installed on each key is stored as hand map data of “0” for the off state and “1” for the on state.

Reference numeral 19 is a key map memory. The key map memory has as many RAMs as there are keys on the keyboard 10. For each key, key map data indicating whether or not the key is pressed (“1” when the key is pressed, If no key is pressed, "0") is stored.

Reference numeral 20 is a proximity switch. As described above, the proximity switch detection unit 21 is installed on each key of the keyboard 10, and when the player's hand approaches the proximity switch detection unit 21, the proximity switch 20 is turned on.

Reference numeral 22 is a finger register. The finger register 22 is composed of 10 registers corresponding to 10 fingers of both hands, and each register stores a finger code number preset for each finger (see Table 1 described later). By the finger determination process (see S12 of FIG. 6 and FIG. 8) described later, the hand map memory 18
Which key each player's finger is on is determined from the hand map data stored in, and the key number (key number) is stored in each register corresponding to each finger.

(4) Processing Operation of the Present Embodiment Next, the processing operation of the first embodiment having the above-mentioned configuration will be described with reference to the flowchart shown in FIG. In the figure, the numerical value with S at the beginning indicates the number of the processing procedure.

In the first embodiment, (4-1) initialization processing,
(4-2) Proximity switch scan processing, (4-3) finger determination processing, (4-4) key scan processing, (4-5) key processing and sound generation processing are performed.

Of these processes, (4-1) and (4
The process of -4) is a process belonging to the conventional technique performed in a normal electronic musical instrument. The processing peculiar to the present invention is (4-
2) Proximity switch scan processing, (4-3) finger determination processing, (4-5) key processing and sound generation processing.

When the power of the electronic musical instrument is turned on, the operation of this embodiment starts from the initialization processing (S10) shown in FIG. Then, the processing operation is performed according to the flowchart shown in FIG. The processing operation of this embodiment will be described below.

(4-1) Initialization process First, when the power is turned on, the initialization process is performed (S1).
0). By this processing, the internal state of the tone generation circuit 14 is initialized so that no tone is produced when the power is turned on. In addition, the contents of the RAM (not shown) are cleared.

(4-2) Proximity Switch Scan Process Next, a proximity switch scan process is performed (S1).
1). This processing is performed by turning on / off each proximity switch detected by the proximity switch scan circuit inside the keyboard 10 shown in FIG.
The off state is read by the CPU 13 and stored as hand map data in the hand map memory 18 shown in FIG.

FIG. 7 shows the relationship between the on / off state of the proximity switch installed on the keyboard and the hand map data. In the figure, for simplicity, a three-octave keyboard having 36 keys is shown. The upper part of FIG. 7 shows the keyboard, and the lower part shows the hand map data stored in the hand map memory.

The key numbers (key numbers) of the keyboard shown in the upper part of FIG. 7 are given in hexadecimal notation, the key number of the leftmost key is 30H (H indicates hexadecimal notation), and the rightmost keyboard key. The number is 53H. The plus (+) mark on the white key in the upper part of the figure indicates that the proximity switch on the key is in the ON state (the finger of the player's hand is within the ON area of the key). .. The other proximity switches on the key are off. From this figure, it can be seen that the player's left little finger is placed on the key number 37H and the player's left thumb is placed on the key number 40H.

When the proximity switch scan processing is performed,
Hand map data as shown in the lower part of FIG. 7 is stored in the hand map memory. Hand map memory is (1)
(3) to (3), and hand map data for each octave from the bass side are stored in order of key number from the left.

As shown in FIG. 7, the leftmost bit of the hand map memory (1) is called the most significant bit. This most significant bit is related to the process of S123 (see FIG. 8) during the finger determination process described later.

When the proximity switch scanning process of S11 is finished, a finger determining process S12 is performed next.

(4-3) Finger Judgment Processing This processing judges which key the player's finger is on, based on the hand map data obtained by the proximity switch scan processing, and the result is judged by the finger. This is the process of storing in the register 22.

The finger register is a register for storing which key the player's finger is on. The finger register consists of 10 registers corresponding to the fingers of both hands. Each register has a preset "finger code number" and the "key number" of the key on which the finger corresponding to each register is placed. It is stored (see Table 1 below).

FIG. 8 is a flow chart showing details of the processing operation of the finger determination processing S12. The processing operation of S12 will be described below with reference to FIG.

First, the variable (N) is initialized (S12).
1). The meaning of the variable (N) will be described in the description of the processing of S124 described later.

Next, the key number (IH) at the left end of the keyboard is set (S122). This key number (IH) is a hexadecimal number as described above.

Next, it is determined whether or not the hand map data of the most significant bit (see FIG. 7) of the hand map memory (1) is "1" (S123). If this data is "1", it means that the finger of the performer's hand is on the key (the leftmost key of the keyboard 10 in the case of the first processing). Every time the key number is increased by "1" in the process of S129 described later, the hand map data is shifted one by one to the left. Therefore, the data of the most significant bit of the hand map memory (1) is always data (hand map data) indicating the ON / OFF state of the proximity switch installed in the key currently being processed (key number (IH) key). The process of S123 is a process of determining whether or not the hand map data is "1" (whether or not there is a finger on the key).

If the determination process of S123 is "yes", the variable (N) counting process is performed (S12).
4). Here, the variable (N) obtained in the process of S124
Means the number of fingers of the player's hand on the left side of the key including the key currently being processed (key number (IH) key).
For example, when N is "3", there is the third finger from the left (the middle finger of the player's left hand) on the key currently being processed.

On the other hand, if the determination process of S123 is "no", the counting process of N is not performed.

Next, processing for storing the key number currently being processed in the finger register 22 is performed (S).
125). This processing will be described based on Table 1 shown below.

[0049]

[Table 1]

Table 1 shows in which of the finger registers the "key number" is stored when the variable (N) changes. Table 1 is shown on the keyboard
It corresponds to when the hand is placed as in the upper row. That is, the left little finger is "37H", the ring finger is "39H", the middle finger is "3BH", the index finger is "3CH", the thumb is "40H", and the right thumb is "43H".
"H", the index finger is "45H", the middle finger is "47H", the ring finger is "48H", and the little finger is "4CH".

The finger register is composed of 10 registers of REG "00" to REG "09".
As shown in Table 1, it corresponds to each finger of both hands. If a variable (N) (a variable that indicates that the finger currently on the key being processed is the Nth finger counting from the left little finger) is determined, it is possible to know how many fingers are on the key, which corresponds to that. Get the register name. In the process of S125, the register name is selected by N, and the "key number" currently being processed is registered in that register.
Memorize

In Table 1, other "finger code numbers" are shown. This "finger code number" is determined for each register and is stored in advance in each register.
The "finger code number" is necessary in the tone generation process (S26) described later.

When the process of S125 is completed, it is determined whether or not the variable (N) is "10" (S12).
6). If the determination process is “yes”, the process for 10 fingers is completed, and the finger determination process is completed.
Processing of 13 or less is performed.

On the other hand, if the determination process of S126 is "no", the process of S127 is performed. The process of S127 is
This is a process of determining whether or not the key is the rightmost key of the keyboard 10. If this determination process is "yes", all the keys have been checked, and therefore the finger determination process S12 ends, and the next Proceed to the key scanning process (S13).

On the other hand, if the determination process in S127 is "no", 1H (hexadecimal 1) is added to the key number to set the next key number (S128).

Next, all the hand map data in the hand map memory (1) to the hand map memory (3) is shifted to the left by one (S128). This process is a process for determining the hand map data of the next key number (“IH” set in the process of S128) in the process of S123 described above. When this process ends, S12 is executed again.
Return to the process of 3.

The processing operation of the finger determination process (S12) has been described above. By this processing, when the performer holds his hand over the keyboard, the key numbers of the ten keys directly under the performer's fingers are accurately stored in the finger registers corresponding to the fingers of both hands.

(4-4) Key scan process Next, a key scan process is performed (S13). In this processing, the CPU 13 reads the on / off state (key depression / key release state) of each keyboard detected by the key scanning circuit inside the keyboard, and stores it as key map data in the key map memory 19 shown in FIG. It is a process to make.

FIG. 9 shows the relationship between the depressed key and the key map data. For simplicity, FIG. 9 shows a three-octave keyboard having 36 keys. The mark (*) on the keyboard shown in the upper part of the figure indicates that the key is pressed by the performer. When the key cancel process is performed, data (key map data) as shown in the lower part of FIG. 9 is stored in the key map memory. Similar to the hand map memory, the key map memory is composed of three (1) to (3), and key map data for each octave from the bass is stored in order of key number from the left. The key pressed in the upper part of FIG. 9 is the thirteenth key from the left, the key map data at the left end of the key map memory (2) shown in FIG. 9 is “1”, and the other key map data is “0”. is there.

(4-5) Key Processing and Sound Generation Processing Next, the key processing and sound generation processing shown in FIG. 6 are performed (S
14-S28). In this process, when a key-depressing operation is performed, the CPU 13 determines which finger the player performs the key-depressing operation, and the information regarding the tone control that is different for each finger (this is referred to as finger information; This is a process of supplying the sound to the generating circuit 14 to generate a musical tone, and when the key releasing operation is performed, the generation of the musical tone that has been generated until then is stopped.

The processing operation will be described below with reference to the flowchart shown in FIG.

First, whether there is an event (new key depression /
It is determined whether or not there is a key release operation (S1).
4).

(When there is no event) When the determination processing in S14 is "no", there is no new key depression / key release operation, so no sounding / muting processing is performed for that key and the key is not depressed. The process ends, and the proximity switch scan process (S
Return to 11).

(If there is an event) On the other hand, the above S
If the determination process of 14 is "yes", a determination process of whether there is an off event (whether a new key release operation has been performed) is performed (S15). This process is a process of deciding whether or not to perform a process (silence process) for stopping the generation of the musical sound that has been generated until then, when the pressed key is released.

(When there is an off event) In this case, at least one key has been released. Therefore, in the processing from S16 to S21 described below, the key for which the key release operation has been performed is searched, and the mute processing of the key is performed.

First, the variable i (10
The decimal number is set to "0" (S16). Variable i is "0"
In the case of, the corresponding key number (IH (hexadecimal number)) is "30H", and if the variable (i) increases by "1", the key number (IH) also increases by "1H". Explaining with the keyboard shown in the upper part of FIG. 7, the key number (IH) is “37H” when the variable (i) is “7”, and the key number (IH) is “53H when the variable (i) is“ 35 ”. It is.

Then, it is determined whether or not there is an off event for the key having the key number corresponding to the variable (i) (S17). If the determination process is "no", the key release operation has not been performed for that key, so the mute process is not performed and the process branches to S20 and the subsequent steps.

On the other hand, if the determination processing in S17 is "yes", it means that the key release operation has been performed for the key, so the key number (IH) of the key is set (S18). The muffling process is performed to stop the generation of the melody sound of the key that has been generated up to that point (a musical tone with a pitch peculiar to the key, the same applies hereinafter) (S19).

When the process of S19 is finished, "1" is added to the variable i to prepare for the process of the next key (S2).
0). Then, it is determined whether the variable i is less than 36 (S2
1). This process is for determining whether or not the process is completed for a key of 3 octaves (36 notes).

When the determination process of S21 is "yes", the processes of S17 to S21 described above are repeated. Note that FIG. 6 shows a key for three octaves (36 tones) for simplicity, but the principle is the same even if it is several octaves.

On the other hand, if the determination process in S21 is "no", the muffling process ends and the processes in and after S22 are performed.

The processing from S22 to S28 is processing for performing musical tone control corresponding to each finger of the player who has depressed the key to generate a melody tone of the depressed key.

First, the variable i corresponding to the key number is set to "0" (S22).

Next, the process of determining whether or not there is an on event is performed for the key having the key number corresponding to the variable (i) (S23). If the determination process is "no", the key depression operation has not been performed for that key, so the sound generation process is not performed, and the process branches to S27 and the subsequent steps.

On the other hand, if the determination process in S23 is "yes", it means that the key pressing operation has been performed for the key, and therefore the key number (IH) of the key is set (S24).

Next, a process for setting finger information is performed (S25). Here, the finger information refers to information regarding musical tone control set for each finger. For example, it is information for correcting touch data for each finger in order to correct the strength of the key pressing force. Several kinds of finger information are set for each finger or for each finger code number, and are stored in the ROM in advance. The panel switch can be used to select a desired type of finger information. In the processing of S25, the finger information of the pressed finger is stored in the RAM (FIG. 5).
(Not shown in the figure), and the next pronunciation processing (S2
This is a process prepared for 6).

(Details of S25 Process) The process of S25 will be described in detail below. The process of S25 is a process of calling the finger information stored in the ROM based on the key number set by the process of S24. Even if the key number is the same, the finger information differs depending on the finger pressing the key.To obtain the finger information from the key number, first find the finger that pressed the key from the key number, and then obtain the finger information based on that finger. Ask. That is, first, the register having the key number (IH) is discriminated from the finger register 22, the code number of the finger stored in the register is called, and the finger information is stored based on the code number of the finger. The finger information of the finger is called from the ROM and stored in the RAM.

A concrete example of this is as follows. For example, when the key number "40H" is pressed with the thumb of the left hand (see FIG. 7), the key number "40H" is stored in the REG "04" by the finger determination process of S12 (see Table 1), The code number of the finger is "04H" (see Table 1). Therefore, based on the code number of the finger, the finger information previously stored in the ROM is called and stored in the RAM.

The code number of the finger is displayed in a 2-digit hexadecimal number as shown in Table 1, and the first digit represents the number of the finger counted from the little finger side as "0" for the little finger. The digit in the digit indicates the left and right of the hand ("0" indicates left, "1" indicates right). For example, the code number “1” of the finger of REG “06”
"3H" represents the right hand because the second digit is "1", and represents the first finger (index finger) counting from the little finger ("3" +1) because the first digit is "3" ..

It is not necessary to set the code number of the finger in this way, but if it is set in this way, if the finger information is called based on only the first digit of the code number of the finger, the Different finger information can be called for each finger regardless of, and if the finger information is called based only on the second digit of the code number of the finger,
Different finger information can be called depending on the left and right hands regardless of the finger.

The above is a detailed description of the processing of S25.

Then, the finger information set in the RAM in the process of S25 is called by the CPU 13 and is supplied to the tone generation circuit 14 to generate a tone-corrected tone (S26).

When the process of S26 is completed, "1" is added to the variable i to prepare for the process of the next key (S2).
7). Then, it is determined whether or not the variable i is less than 36 (whether or not the processing for the 3-octave key is completed) (S2
8).

When the determination process of S28 is "yes", the processes of S23 to S28 described above are repeated.

On the other hand, if the determination process in S28 is "no", the key process and the tone generation process are completed, and the process returns to the proximity switch scan process (S11).

The above is the description of the processing operation of the present embodiment.

[0087]

As described above, according to the present invention, it is possible to determine the finger of the player's hand operating the keyboard, which has been difficult in the past. Since the musical tone control is performed differently depending on the determined finger of the player's hand, the strength of the finger pressing the key is corrected, and an appropriate performance can be performed. Also, by changing the tone with your finger, you will be able to perform something you have never been able to do.

[Brief description of drawings]

FIG. 1 is a diagram showing a relationship between a position of one finger of a player and an on / off state of a proximity switch.

FIG. 2 is a sectional view taken along the line aa in FIG.

FIG. 3 is a plan view showing a state in which the player presses the black key of the embodiment of the present invention with the middle finger of the left hand.

FIG. 4 is a left side view of FIG.

FIG. 5 is a diagram showing an outline of the overall configuration of the present embodiment.

FIG. 6 is a flowchart showing an outline of the processing operation of this embodiment.

FIG. 7 is a diagram showing a relationship between on / off states of proximity switches on a keyboard and hand map data.

FIG. 8 is a flowchart showing finger determination processing.

FIG. 9 is a diagram showing a relationship between a depressed key and key map data.

[Explanation of symbols]

 10 keyboard 11 operation panel 12 display 13 CPU 14 tone generation circuit 15 waveform memory 16 amplifier 17 speaker 18 hand map memory 19 key map memory 20 proximity switch 21 proximity switch detection unit 22 finger register

Claims (2)

[Claims] 1. An electronic musical instrument having a keyboard, wherein finger detection means for detecting a finger of a player's hand held on the keyboard during performance is installed on the keyboard key, and a certain key is depressed or released. In this case, a finger determination unit for determining which finger of the right or left hand the finger operating the key is provided by comparing the key with the key having the finger detection unit that detects the finger. An electronic musical instrument characterized by that. 2. The electronic musical instrument according to claim 1, further comprising means for performing different control regarding tone generation according to the finger of the player's hand determined by the finger determination means.