AUTOMATIC PLAYER OF ELECTRONIC MUSICAL INSTRUMENTS

摘要

PURPOSE:To control play in correspondence to the play modes of keyboard part by providing a voltage signal generating circuit which independently sets plural voltage signals based on a reference voltage. CONSTITUTION:When a start switch 15 is operated, a flip-flopt circuit 54 is set and a sequential pulse generating circuit 12 is cleared to an initial state by the output of a one-shot circuit 58. As the output of an inverter 57 becomes 0, the clock signal from a clock oscillator 11 is drawn out from an OR circuit 47 and causes the seguential pulse generator 12 to start counting from the initial state via NAND circuit 48 thereby applying sequential gate signals to the respective gates G1 thru thru G8 of a gate group 13. The respective voltage signals having been set with a voltage signal generating circuit 67 are then sequentially read and are outputted as pitch voltage signals TV.