Music – Instruments
Patent
1987-01-29
1988-09-06
Witkowski, Stanley J.
Music
Instruments
84 128, G10H 136, G10H 700
Patent
active
047684135
ABSTRACT:
An automatic performance apparatus including a memory, a readout means, a musical tone generator, high and low-speed dials and a rotary encoder. The memory stores musical performance in an event style representing the on/off of a key and identifying the key and relative time data representing time between event of said key and the immediately previous event in accordance with musical performance. The readout sequentially reads out the event data from the memory. The musical tone generator is arranged such that the pitch, generation timing and termination timing of the generated musical tone are controlled on the basis of the event data read out by the readout means. A combination of dials and rotary encoders manually designates a readout direction and a readout speed of the stored data. The readout includes a circuit for exchanging the on-data with the off-data (and vice versa) in the memory when the designated readout direction is opposite to the storage order.
REFERENCES:
patent: 3955459 (1976-05-01), Mochida et al.
patent: 4484507 (1984-11-01), Nakada et al.
patent: 4646609 (1987-03-01), Teruo et al.
Nippon Gakki Seizo Kabushiki Kaisha
Witkowski Stanley J.
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