AUTOMATIC MUSICAL INSTRUMENT, AUTOMATIC MUSIC PERFORMING METHOD AND AUTOMATIC MUSIC PERFORMING PROGRAM

摘要

When the sliding direction of a sliding operation piece (40) is changed while the sliding speed thereof exceeds a threshold value, a trigger is generated to start sound output. The termination process of the sound output started in response to the latest trigger is invoked when the sliding speed of the sliding operation piece (40) falls below a threshold value, while, when a new trigger is generated, the termination process of the sound output started in response to the previous trigger is invoked.