US PATENT SUBCLASS 84 / 636
.~.~.~.~.~.~ 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}
601  DF  .~.~ Data storage {6}
602  DF  .~.~.~ Digital memory circuit (e.g., RAM, ROM, etc.) {9}
634  DF  .~.~.~.~ Accompaniment {3}
635  DF  .~.~.~.~.~ Rhythm {1}
636.~.~.~.~.~.~ Tempo control

DEFINITION

Classification: 84/636

Tempo control:

(under subclass 635) Subject matter wherein the rate or speed of rhythm is variable.