| 摘要 |
An electronic musical instrument of a type in which information of actuation of keys is detected by scanning the keys of keyboard. The electronic musical instrument includes the keys selectively actuable for producing sounds which correspond to respective musical scale notes, circuitry for sequentially scanning said keys for detection of the information of the actuation of said keys, and memorizing circuitry which corresponds to each of the keys so that the information of the actuation of the keys is memorized. Each memorizing circuitry is composed of a pair of capacitors, one of which is a small capacitor for "dynamic" holding, and the other of which is a capacitor for determination of decay envelope, with the latter being sequentially connected electrically to the former.
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