JPH0774950B2 - Electronic stringed instrument - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic string instrument, and more particularly to a method for controlling the characteristics of musical tones according to the type of object on which a string operation is performed.

[0002]

2. Description of the Related Art An electronic stringed instrument is an electronic musical instrument that detects a string string operation (picking operation) and electronically generates a pitch corresponding to the fret operation position of the string operated string.

Electronic stringed instruments are roughly classified into a trigger type and a pitch extraction type according to a method of determining the pitch of a musical tone. Trigger-type electronic string instruments set the pitch of a musical sound by directly sensing the fret operation position. Generally, the string trigger switch that independently detects the start / end of vibration of each string and the fret operation position of each string. There is a fret switch for sensing.

In this trigger type electronic stringed instrument,
When the start of the vibration of the string is detected by the string trigger switch, the fret operation position is obtained from the state of the fret switch (status), and the pitch data is created from the fret operation position and the information of the string that started the vibration. An external tone generation circuit is provided to generate a tone corresponding to the pitch data with a predetermined envelope. Therefore, when a string is plucked (picking operation), a musical tone having a pitch corresponding to the fret operation position of the plucked string is sounded with a predetermined envelope. When the fret operation is not performed on the plucked string, a musical tone with a pitch corresponding to the open string is generated.

[0005]

As described above, the conventional trigger-type electronic musical instrument determines the pitch of a musical tone by the fret operating position, and the envelope of the musical tone generated is limited to a predetermined one. There is. However, in the actual performance of a natural string instrument, for example, during picking operation (string operation), whether the picking is performed with a finger, the insulating pick member is used, or the contact area with respect to the string is different. Even if the picking operation is performed with the same strength, the envelope of the generated musical sound is different, and the volume and timbre are slightly different.

FIGS. 7 (a) and 7 (b) are schematic diagrams when the string 100 is picked by the finger 101 and the normal pick 102, respectively. In general, the width l ₂ of the tip of the pick 102 is smaller than the width l _{1 of the} finger 101 (l ₁ >
l ₂ ), the string 100 when the string 100 is picked
The contact area with the finger 101 is larger than that of the pick 102. Therefore, the tension distribution of each part of the string 100 when the string 100 is pulled to pick the string 100 and the speed at which the string 100 is released are determined by the finger 101 and the pick 1.
It differs from 02.

In FIG. 4 (c) and FIG. 5 (c), the finger 101,
3 shows an amplitude envelope of a musical sound generated when the string 100 is picked by the pick 102. As is clear from a comparison of the above two figures, the attack when picking with the pick 102 is steeper and the release is quicker than when picking with the finger 101. Further, the maximum value of (amplitude) is larger when picking with the pick 102, and the sound generation time is longer when picking operation is performed with the finger 101.
(T ₁ > t ₂ , where t ₁ is the tone generation time of the musical tone when the picking operation is performed with the finger 101, and t ₂ is the tone generation time of the musical tone when the picking operation is performed with the pick 102).

In the conventional electronic stringed musical instrument, musical tones are produced with exactly the same amplitude envelope regardless of whether the string is struck by the finger 101 or the pick 102. It was not possible to subtly change the tone characteristics such as tone volume and tone color by changing the object to be struck.

An object of the present invention is to variably control the characteristics of generated musical tones according to whether or not the object to be picked has conductivity, thereby enabling various performance expressions.

[0010]

The present invention has at least one string stretched over a musical instrument body, and is detected by the fret operation position detecting means in response to a string operation of the string. It is applied to electronic stringed instruments that generate musical tones corresponding to the fret operation position.

The string operation identifying means identifies whether or not the string has been struck by a conductive object. The musical tone control means determines the characteristic of the musical tone of the pitch corresponding to the fret operating position detected by the fret operating position detecting means which is sounded in response to the string operating operation by the string operating identifying means. Variable control is performed according to the identification result.

The variably controlled tone characteristics are, for example, an envelope, a tone color, a volume, a sounding time, and the like. Further, the string operation identifying means has a sensor means for sensing that an object having conductivity is in contact with the string, for example.

[0013]

In the above means, when the performer directly operates the string with a finger or a conductive pick, the fret operation position detecting means responds to the operation with the fret for the string with which the string has been operated. The operating position is detected. Further, the string operation identifying means identifies the object on which the string operation is performed as having conductivity, and the first identification signal is applied to the tone control means. The musical tone control means, when the first identification signal is applied, shows the musical tone of the pitch corresponding to the detected fret operating position generated in response to the string operation, for example, as shown in FIG. 4 (c). The control is performed so as to produce a soft sound having such a weak attack feeling.

On the other hand, when the player operates the string with an insulating pick, the string operation identifying means identifies that the string operation is performed on an object having no conductivity. , The second identification signal is added to the tone control means.

When the second identification signal is applied, the musical tone control means generates a musical tone with a pitch corresponding to the detected fret operating position generated in response to a string operation, for example, as shown in FIG. The control is performed so as to produce a hard sound having a strong attack feeling as shown in (c).

In the case where the string operation identifying means has a sensor means for detecting that an object having conductivity with respect to the string is contacted, the string operation detecting means is detected by the sensor means immediately before the string operation is performed. Based on the sensor signal, it is determined whether or not the string operation is performed on the conductive object. For example, when the string is struck by a conductive pick or finger, the sensor means detects that the finger or the like is in contact with the string before the operation is detected. It On the other hand, when the string picking operation is performed with the insulating pick, the sensor means does not detect the contact of the insulating pick with the string. Therefore, depending on whether or not the contact object to the string is sensed by the sensor means immediately before the string operation is performed, the string operation identification means is conductive and identifies whether or not the string is struck. be able to.

As described above, in the case where the object whose string is struck is conductive, it is detected by the string operation identification means that the object is struck by the conductive operation, and the musical tone control means is played. The characteristics of the generated musical sound are controlled according to the presence / absence of detection by the string operation identification means.

Therefore, by performing the string plucking operation by using the finger and the insulating pick, for example, various musical performances can be expressed.

[0019]

Embodiments of the present invention will now be described in detail with reference to the drawings. {Structure} FIG. 1 is an external view of a trigger-type electronic string instrument according to an embodiment of the present invention.

As shown in the figure, the main body of the stringed instrument is in the shape of a guitar consisting of a body 1, a neck 2 and a head 3. Above the neck 2 and above the body 1, there is a longitudinal direction. A plurality of strings 4 (here, six strings) are stretched for playing a stringed instrument. In detail, one end of each string 4 is adjustably supported by a peg 6 provided on the head 3, and the other end is fixed to a string support part 19 described later provided in a case 8 on the body 1. It is stretched above the fingerboard 7 and the body 1 that are attached to the upper surface of the neck 2.

The string numbers "1" to "6" are assigned to the strings 4, and the string numbers are i (i = 1 to 1) for convenience.
The string 4 of 6) is expressed as the i-th string. On the body 1, a power switch PSW for turning on / off commercial AC power supply, and a tone color selection switch group 5 for selecting a tone color as a parameter setting switch 5 for setting various tone parameters.
a, a tremolo arm TMA which is an operator for manually playing a rhythm, and the like are provided. In addition, S
P is a speaker for emitting the played musical sound.

Frets 9 are fixedly installed on the fingerboard 7 at predetermined intervals, and a plurality of fret switches FSW are arranged in a matrix between the frets 9 corresponding to the strings 4 in the fingerboard 7. It is buried. The fret switch FSW is for detecting the fret operation position of each string 4. Further, a series of fret numbers of "1", "2", "3" ... Are assigned to each fret 12 from the head 3 side.

Further, as will be described later in detail, in the case 8, there is provided a string trigger pickup TPU corresponding to each string 4 and converting the vibration of each string 4 into an electric signal similar to the vibration. . <String Trigger and String Touch Detecting Mechanism> FIG. 2 shows a configuration example of the string trigger and string touch detecting mechanism. When the string 4 vibrates by a picking operation, the pickup TPU including an electromagnet converts the vibration into a similar electric signal. As shown in the figure, a mounting base 18 for mounting a string trigger pickup TPU is fitted in the recess 11 of the body portion 1, and a high portion of the mounting base 18 is a string supporting part 19 for supporting and fixing the strings 4. And the string support 19
The string 4 is locked to the string locking portion 19b through the insertion hole 19a. The vibration of the string 4 converted into an electric signal by the string trigger pickup TPU is amplified by the amplifier 20 and compared with a predetermined reference voltage + V by the comparator 21. The comparator 21 outputs “1” when the electronic signal applied from the amplifier 20 is larger than the reference voltage + V.
The (H) string trigger signal is sent to the latch circuit 40 described later. The amplifier 20 and the comparator 21 form a string trigger detection circuit 22.

A conductive coil spring 23 is attached to a part of the insulating string 4 made of nylon or the like, for example, the outer periphery of the part stretched on the body 1 to form the conductive string part. Is forming. When a part of the human body A such as a fingertip directly touches the coil spring 23, which is the conductive string portion, or indirectly through a conductive pick member A ′ or the like, and a string touch is made, the human body A passes through the human body A. A small signal whose main component is inductive noise due to a normal commercial AC current of 100 V is input. The minute signal input from the coil spring 23 is applied as a string touch signal to the string touch state detection circuit 26 via the lead wire 24 and a string touch signal input end 24 described later.

On the other hand, when a string touch is made on the conductive coil spring 23 by the insulating pick member B, no inductive noise is generated and the minute signal (string touch signal) is not input. Overall Circuit Configuration Next, FIG. 3 is a block diagram showing the overall circuit configuration of the embodiment shown in FIG.

Although not shown, the microcomputer 30 has a ROM (Read Only Memory) and a RAM (Random Access Memory) built therein, and executes a program stored in the ROM to control the entire system. ing.

As described above, when the string 4 is picked, the vibration of the string 4 caused by the picking operation causes the string trigger pickup TPU provided below the string 4.
Is converted into an electric signal (string trigger signal) similar to the vibration and applied to the string trigger detection unit 220. The string trigger detection unit 220 is provided with the string trigger detection circuit 22 shown in FIG. 2 in a one-to-one correspondence with each string trigger pickup TPU.
When the string trigger signal output from PU exceeds a predetermined value, "1" (H) is added to the latch circuit 40.

The latch circuit 40 is a string trigger detection circuit 2
The number of RS flip-flops is equal to 2, and the set terminal S of each flip-flop is connected to the output terminal of each string trigger detection circuit 22. Therefore, when the output of the string trigger detection circuit 22 becomes "1", the corresponding flip-flop is set to "1".

The microcomputer 30 includes a latch circuit 4
The content of each flip-flop of 0 is read at a predetermined cycle, and the content read last time and the content read this time are compared to detect the start of vibration of each string. That is, it is determined that the vibration of the string has started when the value of the flip-flop changes from "0" to "1".

When the start of vibration of the string is detected, the microcomputer 30 sets a predetermined timer value in a built-in timer (not shown) to activate the timer, and a time end interrupt (equal to the timer value) from the timer. The vibration of the string starts when the time elapses) and "1"
By resetting the flip-flop set to “0” to “0”, the occurrence of chattering in detecting the string operation is prevented.

The fret switch group 50 is composed of a plurality of fret switches FSW arranged in a matrix between the frets 9 corresponding to the strings 4 shown in FIG. When pressed, the fret switch F embedded below the pressed position
SW is turned on. The output of each fret switch FSW is applied to the switch status detection circuit 60.

Further, the panel switch group 70 includes the tone color select switch group 5a and the tremolo arm T shown in FIG.
It is composed of panel switches such as MA, and the output of each switch of the panel switch group 70 is applied to the switch status detection unit 60.

The switch status detection circuit 60 is a circuit for storing the on / off state (status) of each fret switch FSW of the fret switch group 50 and each switch of the panel switch group 70. The microcomputer 30 detects the switch status. The status of each switch of the fret switch group 40 and the panel switch group 70 is read from the circuit 60.

Further, the string touch state detection circuit 26 is connected to the conductive coil spring 23 for string touch detection shown in FIG. 2 via the string touch signal input end 25, and the string touch signal input end 25 is connected. The string touch signal input via the is amplified and added to the A / D converter 27. The A / D converter 27 converts the string touch detection signal applied from the string touch state detection circuit 26 into digital data of predetermined bits and applies the digital data to the microcomputer 30.

The first musical tone generating circuit 80 and the second musical tone generating circuit 90 are circuits for generating musical tones corresponding to musical tone control information (pitch, tone color, volume, etc.) applied from the microcomputer 30, and are composed of a plurality of circuits. It has a waveform memory for storing the waveform of the timbre.

For example, the waveform memory in the first tone generation circuit 80 stores the waveform of the tone color of the guitar having the amplitude envelope shown in FIG. 4 (c), and the waveform in the second tone generation circuit 90. The memory stores the waveform of the tone color of the guitar having the amplitude envelope shown in FIG. 5 (c).

The musical tones generated from the first musical tone generating circuit 80 and the second musical tone generating circuit 90 are emitted to the outside through the amplifier 100 and the speaker SP. {Operation} As shown in FIG. 2, in order to operate the string 4, the conductive coil spring 2 for detecting the string touch is used.
On the other hand, when the human body A such as the fingertip of the performer directly touches 3, a minute signal is generated due to the induction noise of the commercial AC power supply of 100 V as described above, and this minute signal is used as a string touch signal for the lead wire. It is applied to the string touch state detection circuit 26 via 24 and the string touch signal input terminal 25. The string touch detection output from the string touch state detection circuit 26 is A / D.
It is converted into a digital value of a predetermined bit by the converter 27 and added to the microcomputer 30. When this digital value becomes equal to or larger than the set value, the microcomputer 30 determines that the human body A such as a fingertip has touched the string 4, and sets a string touch storage flag (not shown) in the microcomputer 30 to "1". set. The string touch storage flag is provided for each string 4, and is reset to "0" after the tone generation processing of the musical tone by the string trigger described later is performed.

When the picking operation of the string 4 is performed by the human body A such as the fingertip as shown in FIG. 4 (a), the vibration of the string 4 generated after the string 4 is released is picked up by the string trigger pickup TPU. Then, an electric signal similar to the vibration of the string 4 is applied to the string trigger detection circuit 22. Then, the string trigger detection circuit 22 sets the flip-flop in the latch circuit 40 corresponding to the string 4 that has been picked to "1". The microcomputer 30 reads the contents of the flip-flop set to "1", determines that the value of the flip-flop has changed from "0" to "1", and performs a picking operation on the string 4 (with a string trigger). ) Is detected. Therefore, FIG.
As shown in (b), when the string 4 is released, the string trigger signal is immediately detected. Then, when the string trigger signal is detected, the value of the string touch storage flag corresponding to the string 4 that has detected the string trigger signal is read. Since the string touch storage flag is set to "1", it is determined that the string 4 has been picked by the human body A such as the fingertip, and the first tone generation circuit 80 is controlled to perform the fret operation. The musical tone of the corresponding pitch is generated by the envelope shown in FIG. 4 (c), that is, the musical tone envelope having a weak attack feeling at the start of sounding, a relatively low peak level (V ₁ ) and a relatively long sounding time. . As a result, a soft musical sound is generated.

On the other hand, when the insulating pick member B touches the conductive coil spring 23 for string touch detection shown in FIG.
The induction noise does not occur, and the string touch state detection circuit 26
And, the string touch signal input via the A / D converter 27 becomes a predetermined value or less. Therefore, the microcomputer 30 does not set the string touch storage flag to "1". Therefore, when the string operation on the string 4 is completed, the microcomputer 30 causes the string trigger signal (see FIG.
The value of the string touch storage flag read after detecting (b) is “0”. When the string touch storage flag is “0”, the microcomputer 30 determines that the picking operation has been performed by the insulating picking member B, controls the second musical sound generating circuit 90, and performs the fret operation. A musical tone with a pitch corresponding to a position is represented by an amplitude envelope as shown in FIG. 5 (c), that is, a musical tone with a strong attack feeling at the start of sounding, a high peak level (V ₂ ) and a relatively short sounding time. Generate in envelope. As a result, a hard musical sound is generated. In addition, FIG. 5 (a),
As shown in (b), when the string 4 is picked by the insulating picking member B, the string trigger is detected at the same timing as when the string A is picked by the human body A such as a fingertip.

Next, the control operation of the musical tone generation of the present embodiment performed by the microcomputer 30 will be described.
<General flow of microcomputer> Figure 6 shows
It is a figure which shows the general flow of the process which the microcomputer 30 performs. When the power switch PSW is turned on and the power is turned on, the microcomputer 30 first performs an initialization process G1. By this initialization processing G1, for example, each flip-flop of the latch circuit 20 is reset to “0”, and each string touch storage flag is initialized to “0”.

Next, the value of the flip-flop storing the latest status of the string trigger switch TSW corresponding to each string 4 is read from the latch circuit 20, and the value read last time and the value read this time are compared. , The start / end of vibration of each string is determined (G2). The microcomputer 30 stores the previous value of the flip-flop corresponding to each string 4 in the RAM, and compares the previous value with the newly read value. Then, by detecting that the value of the flip-flop has changed from "0" to "1", the presence of the string trigger (the string 4 has been picked) is determined. When it is determined that the string trigger is present, pitch data corresponding to the fret operation position is set from the fret number obtained in the fret state detection processing G3 described later and the string number of the string 4 that has been picked. Then, based on the value of the string touch storage flag corresponding to the picked string 4, it is determined whether or not the object on which the picking operation is performed is the human body A, such as a fingertip, and the like. If it is determined that the picking operation by the human body A is performed (the value of the touch memory flag is “1”),
Pitch data and note-on instruction data are added to the first tone generation circuit 80, and the first tone generation circuit 80 is controlled to generate a tone with a soft envelope as shown in FIG. 4 (c).

On the other hand, if the value of the string touch storage flag is "0", it is determined that the picking operation is performed by the insulating picking member B, and the pitch data is stored in the second musical tone generating circuit 90. Add note-on instruction data,
The second tone generation circuit 90 is controlled to generate a tone with a hard envelope as shown in FIG. 5 (c). Then, as described above, the first tone generation circuit 80 or the second tone generation circuit 90
After controlling the generation of the musical tone by controlling, all the string touch memory flags are reset to "0".

Next, each fret switch F of the fret switch group 50 is passed through the switch status detection circuit 60.
When the status of the SW is read (G3) and it is determined that the status of the fret switch FSW has changed (G4), the fret state change processing G5 is executed. In the fret state change processing G5, when the string pressing position of the fret belonging to the string 4 being sounded changes, the pitch corresponding to the fret operation position of the change destination is reset (the instruction for resetting the pitch is issued). Perform on the corresponding tone generation circuit). For the sake of convenience, the first musical sound generating circuit 80 and the second musical sound generating circuit 90 will be collectively referred to as a musical sound generating circuit.
As a result, the pitch of the musical tone being sounded becomes the pitch corresponding to the new fret operation position. Further, while a predetermined musical sound is being sounded by the first musical sound generating circuit 80 or the second musical sound generating circuit 90, any fret switch FSW belonging to the string 4 being sounded is in a separated state, that is, a so-called open string operation state. When it changes to, the tone being played is muted. Further, nothing is done with respect to the change in the fret pressing state which belongs to the string 4 which is not sounded at present.

Next, the state of each switch of the panel switch group PSW is read through the switch status detection circuit 60 (G6). Then, the state change of the panel switch is discriminated (G7), and if there is a change, a required process corresponding to the panel switch having the state change, for example, a tone color setting process for the tone generation circuit is performed. Continuing, A
The digital value of the string touch signal of each string 4 detected by the string touch detection circuit 26 is read via the / D converter 27, and depending on whether the digital value is equal to or more than a predetermined value,
It is determined whether or not the human body A such as the fingertip is in contact with the string 4 (G9).

When the read digital value is equal to or larger than the predetermined value, it is determined that the human body A such as the fingertip is in contact with the string 4, and the string touch storage flag corresponding to the string 4 is set to " Set to 1 "(G10).

On the other hand, when the read digital value in G9 is smaller than the predetermined value, the string touch storage flag is not set. Since the microcomputer 30 repeats the above G2 to G10, when the picking operation is performed by the human body A such as the fingertip, when the human body A such as the fingertip contacts the coil spring 23, the contact is the string touch storage flag. (G10).

By the string trigger detection process G2 performed after G10, the string touch memory flag is referred to, and the object on which the string 4 is picked is
A human body A such as a fingertip or an insulating picking member B
Is determined. Thus, just before the detection of the string trigger in the string trigger detection process G2, it is detected whether the object in contact with the string 4 is the human body A such as a fingertip or the insulating pick member B. Therefore, it is possible to accurately detect whether the object on which the picking operation is performed is the human body A such as a fingertip or the insulating picking member B. Then, since the amplitude envelope of the generated musical sound changes between when the picking operation is performed with the human body A such as the fingertip and when the insulating picking member B is performed, the picking operation with the fingertip of the natural stringed instrument is performed. It is possible to more faithfully reproduce the performance of picking operation with a pick.

Since the contact of the conductive pick member A'with the string 4 can be detected in the same manner as the contact with the human body A such as the fingertip, even when the picking operation is performed by the conductive pick member A ', It is possible to control the characteristics of the musical sound in the same manner as in the picking operation by the human body A such as the fingertip.

Further, the tone characteristics to be variably controlled are not limited to the amplitude envelope as in the above embodiment, but may be various effects such as tone color, volume, echo and reverb.

Further, since the touch signal detected by the string touch state detection circuit 26 is converted into a corresponding digital touch signal by the A / D converter 27, the magnitude of the detected touch signal (this touch signal It is also possible to finely control the musical tone characteristics depending on whether the string 4 is touched only with the fingertip or with the entire pad of the finger). For example, a musical tone waveform attack can be performed. It is also possible to change the inclination angle of the portion according to the magnitude of the value of the digital touch signal.

Further, in the above embodiment, as the string vibration sensing means for sensing the start of string vibration, the electromagnetic string trigger pickup TPU made up of an electromagnet is used, and the vibration of the string 4 is converted into an electrical signal of an analog signal at multiple levels. However, in order to detect only the start of the vibration, a string trigger switch that performs only on / off switching operation should be used. Maybe, other, optical pickup,
A string vibration (string tension) pickup or the like can also be used.

Further, in the above-mentioned embodiment, the fret operation position is detected by using a large number of fret switches FSW arranged in a matrix, but the present invention is not limited to this.
For example, a so-called pitch extraction method (for example, disclosed in Japanese Patent Laid-Open No. 63-106795) in which the pitch of a musical tone waveform generated during string operation is extracted to generate a musical tone having a corresponding pitch, is used for a string. An ultrasonic system in which a sound wave is propagated and an echo generated by being reflected at a fret position in contact with a string is received to measure an echo reception time to detect the fret position (for example, JP-A-62-99790).
(Described in Japanese Patent Laid-Open No. 60-501276), a minute current is supplied to a string, and a string current supply method (for example, disclosed in Japanese Patent Laid-Open No. 60-501276) in which the conductive string fret with which the string contacts detects the fret position. You may detect using it.

Further, in the above embodiment, the conductive coil spring 23 and the string touch state detection circuit 26 are used as the string operation identification means, but another method, for example, electrostatic using the stray capacitance from the human body is used. A capacitance method or an electromagnetic method that uses the disorder of the magnet may be used.

[0054]

As is apparent from the above description, according to the present invention, the characteristics of the musical tone generated in accordance with the instruction of the generation start instructing means are determined by the string operation target object with respect to the string as a part of the human body of the player. Since the control is performed according to the identification result by the string operation identifying means for identifying whether or not the string operation target is a part of the human body of the performer and other cases. (For example, an insulating pick member or a conductive pick member) can be controlled so that the characteristics of the generated musical sound (for example, envelope, tone color, volume, etc.) are different. As a result,
Just as when playing a natural stringed instrument, the performance of the generated musical sound is controlled according to the type of the string operation target, without any special operation of the musical sound characteristic instruction switch. can do.

[Brief description of drawings]

FIG. 1 is an overall external view of an embodiment.

FIG. 2 is a configuration diagram of a string trigger and a string touch detection mechanism.

FIG. 3 is a block diagram showing the overall circuit configuration of the above embodiment.

4 (a) to 4 (c) are diagrams for explaining a musical tone generating operation when a picking operation is performed with a finger.

5 (a) to 5 (c) are diagrams for explaining a musical tone generating operation when a picking operation is performed with a pick.

FIG. 6 is a diagram illustrating a general flow performed by a microcomputer.

7 (a) and 7 (b) are schematic diagrams when a picking operation is performed by a finger and an insulating picking member, respectively.

[Explanation of symbols] 1 body 2 neck 4 string 7 fingerboard 22 string trigger detection circuit 23 coil spring 30 microcomputer 50 fret switch group 80 first musical tone generation circuit 90 second musical tone generation circuit FSW fret switch TPU string trigger pick up

Claims (3)

[Claims] 1. A generation start instruction means for instructing the start of generation of a musical sound in response to a string operation on a stretched string, and an object for string operation on the string is a part of a human body of a performer. A string operation identifying means for identifying whether or not there is a string string, and a control means for controlling the characteristic of the musical sound to be started to be generated in accordance with the instruction of the generation start instructing means according to the identification result by the string operation identifying means. An electronic stringed instrument characterized by being equipped. 2. The string is a non-conductive string, and the string operation identification means is a touch operation object detection means provided on a part of the non-conductive string, and the touch operation object detection means. The electronic stringed instrument according to claim 1, further comprising: identification means for identifying whether or not the touch operation target object for the string is a part of the human body of the performer based on the detection result by the means. 3. The touch operation object detection means is a conductive member provided on a part of the non-conductive string.
Electronic stringed instrument described in.