KEY_OFF NOTES SELECTION AND RETRIGGER CONTROL BASED ON PRESUMED LEGATO OR STACCATO.

摘要

One or more assigners (AS) selecting a note to be sounded according to the operation state of plural controls (22), such as keys of a polyphonic music keyboard, corresponding respectively to notes, are provided. Each of the assigners decides whether or not to select a note to be sounded in response to a key-off operation of any of the controls (22), and when a key-off operation of any of the controls (22) is detected, the assigner (AS) is instructed to select a note to be sounded according to an operation state of the controls (for key-on and key-off key). Key-off and key-on timings depend on : The previous key states, the desired articulation (legato, staccato), the chosen music rules and desired timbre. Actual and previous key states are recorded in an operation history table, used as input to a finite state machine.