US PATENT SUBCLASS 84 / 668
.~.~.~.~.~ Tempo control

Current as of: June, 1999
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84 /   HD   MUSIC

1  DF  INSTRUMENTS {9}
600  DF  .~ Electrical musical tone generation {5}
647  DF  .~.~ Digital combinational circuit {7}
666  DF  .~.~.~ Accompaniment {2}
667  DF  .~.~.~.~ Rhythm {1}
668.~.~.~.~.~ Tempo control

DEFINITION

Classification: 84/668

Tempo control:

(under subclass 667) Subject matter wherein the rate or speed of rhythm is variable.

SEE OR SEARCH THIS CLASS, SUBCLASS:

612+, for tempo control with note sequence of digital storage.

636+, for tempo control with accompaniment of digital storage.

652+, for tempo control of digital combinational circuit.