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Controls volume and serves as the power switch for the DR-55.
Adjusts tempo and provides visual feedback on rhythm and loading status.
Selects between rhythm pattern variations (A, B) or alternates between them (AB).
Determines whether the unit is in PLAY or WRITE mode to prevent accidental erasure.
Selects sounds (BD, SD, RS) or accent (AC) during programming.
Selects which rhythm pattern to play or where to write a new pattern.
Control the start, stop, and sequence positioning of rhythm patterns.
Lists and briefly describes all controls and switches on the DR-55.