Automatic rhythm sound producing device adapted for use with keyboard musical instruments

摘要: An automatic rhythm sound producing device built in a keyboard musical instrument capable of playing ordinary tones the melody, chord or bass, combinations thereof upon selective depression plurality keys arranged order notes. The includes combination pulse generator which comprises clock followed by frequency dividing counter chain to generate pulses, and having resetting arrangement. outputs from are supplied timing encoder so as cause various stages appear on output lines train selected pulses represent desired patterns. individual generators produce sounds according patterns for an performance. A trigger is provided detect key detection start normally reset chain, thereby initiating