Patent ID: 9613635
Date: 2017-04-04
CPC Classifications: G10H,G10L,G11B

Claim:
1. An automatic performance apparatus comprising: a storage section storing waveform data of a music performance based on a desired reference tempo; an acquisition section configured to acquire information designating a variable performance tempo; a determination section configured to determine, in accordance with relationship between the performance tempo and the reference tempo, whether reproduction of the waveform data is to be limited or not; and an audio reproduction section configured to reproduce the waveform data stored in said storage section, said audio reproduction section performing, in order to reproduce the waveform data in accordance with the performance tempo, time axis expansion/contraction control on the waveform data to be reproduced in accordance with the relationship between the performance tempo and the reference tempo, wherein, when the determination section has determined that the reproduction of the waveform data is to be limited, the audio reproduction section performs one of an operation for stopping the reproduction of the waveform data and an operation for continuing the reproduction of the waveform data with a resolution of a reproduction process lowered.