Patent ID: 7381882

Claim:
A performance control apparatus comprising: a performance operator adapted to generate performance timing information indicative of performance timing in automatic performance in response to performance operations by a user, and performance intensity information indicative of intensities of the performance operations; a storage device adapted to store the data of a music piece comprising sequence data of note information including volumes and intensities of musical tones; and a performance control device adapted to read out the data of the music piece from said storage device at a tempo based on the information indicative of the performance timing and to generate sounding instruction data including information on volumes and intensities of musical tones, wherein, in a case where the performance timing coincides with timing in which the note information on a musical tone is read out, said performance control device adapted to determine the sounding instruction data on the musical tone based on the performance intensity information in the performance timing and the volume and intensity of the musical tone included in the read note information, and wherein, in a case where the performance timing is during sounding of a musical tone based on the note information previously read out, said performance control device redetermines the sounding instruction data based on the volume information on the musical tone based on the performance intensity information in the performance timing.