Music – Instruments
Patent
1984-10-01
1986-12-23
Grimley, Arthur T.
Music
Instruments
84DIG12, G10F 100
Patent
active
046305181
ABSTRACT:
Melody data stored in a memory is sequentially read out and sounded with the operation of a one-key switch. In the memory is also stored accompaniment data, which is automatically played under the control of a microprocessor. The timing of the operation of the switch for the melody is compared to the normal timing of the piece. If the difference between the two compared timings is less than .DELTA.t, the accompaniment is automatically played at a normal timing. If it is greater than .DELTA.t, the tempo of the accompaniment is corrected.
REFERENCES:
patent: 4402244 (1983-09-01), Nakada et al.
Casio Computer Co. Ltd.
Grimley Arthur T.
Warren David
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