| 摘要 |
A control circuit for use with a guitar or other musical instrument having an electromechanical pickup for converting natural vibrations of the instrument into electrical signals amplified or otherwise conditioned by a sound system to produce a derivative sound, controls a given parameter, such as the loudness or intensity, of the derivative sound and includes one or more pads of electrically conductive material fixed to the instrument and defining one or more discrete areas on the outer surface of the instrument which are sensitive to such discrete areas being touched by or brought into close proximity to a finger, hand or other body part of the performer, thereby allowing the performer to easily and quickly make changes in the given parameter of the derivative sound.
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