Automatic accompaniment apparatus

Details Automatic accompaniment apparatus Automatic accompaniment apparatus

1984-08-17

1985-12-31

Isen, Forester W.

Music

Instruments

84DIG22, 84DIG12, G10F 100

Patent

active

045613389

ABSTRACT:
A ROM has 16 memory locations of addresses No. 0 to No. 15. Bass pattern data for the first bar are stored in the memory locations of the addresses No. 0 to No. 7, and bass pattern data for the second bar are stored in the memory locations of the addresses No. 8 to No. 15. The memory locations of the addresses No. 0 to No. 7 are specified by respective counts "0" to "7" of a hexadecimal counter, and the memory locations of the addresses No. 8 to No. 15 are specified by respective counts "8" to "15" of the counter. The output of the counter for the counts "8" to "15" is supplied through a gate circuit to the ROM. The gate circuit is inhibited by the output of a chord designating key section.

REFERENCES:
patent: 4220068 (1980-09-01), Howell et al.
patent: 4248118 (1981-02-01), Hall et al.
patent: 4344345 (1982-08-01), Sano
patent: 4433601 (1984-02-01), Hall et al.

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