Abstract: A string member and a string trigger switch mechanism associated with the string member are arranged on an instrument main body. The string member is extended on the instrument main body at a given tension. When the string member is deviated against the tension upon a string displace operation and is then released from its state of tension, a string trigger switch starts a switching operation. While the string member is displaced from its state of rest, the string trigger switch does not start a switching operation. The string trigger switch outputs a tone generation start instruction signal based on the switching operation, and this signal causes a musical tone generating apparatus to start generation of a musical tone. When the string member is plucked while depressing a pitch designating section arranged on the instrument main body, a musical tone at a selectively designated pitch is generated.

Abstract: An electronic musical instrument for causing a tone generator to generate a musical tone corresponding to a musical performance while controlling an envelope by operation of a pedal. An operated-amount signal generator is provided for detecting an operated amount of the pedal and for generating an operated-amount signal, and an effect adding unit is provided for controlling parameters for effect addition so as to add an effect to a musical tone generated from the musical tone generator in accordance with the operated-amount signal from the operated-amount signal generator. The operated-amount signal from the operated-amount signal generator is changed by the operation of the pedal, and an effect-adding parameter in the effect adding unit is changed accordingly, to thereby add an effect to the generated musical tone.