Automatic performance technique using audio waveform data

A computer-implemented method for executing an automatic performance by use of a plurality of sets of waveform data stored in a storage section, the storage section further storing switchover position information indicative of, for each of the sets of waveform data, one or more possible switchover positions in the waveform data, said method comprising:

• a reproduction step of reproducing any one of the sets of waveform data, stored in the storage section, in accordance with passage of time;
• a designation step of designating, during reproduction by said reproduction step of a first set of waveform data of the plurality of sets of waveform data, a second set of waveform data of the plurality of sets of waveform data;
• and
• a step of performing control such that said reproduction step switches the waveform data to be reproduced thereby from the first set of waveform data over to the second set of waveform data in response to waveform data reproduction timing of said reproduction step arriving at one of the possible switchover positions indicated by the switchover position information corresponding to the second set of waveform data designated via said designation step, reproduction of the second set of waveform data being started at the possible switchover position corresponding to the reproduction timing.

A non-transitory computer-readable medium containing a program for causing a processor to perform a computer-implemented method for executing an automatic performance by use of a plurality of sets of waveform data stored in a storage section, the storage section further storing switchover position information indicative of, for each of the sets of waveform data, one or more possible switchover positions in the waveform data, said method comprising:

• a reproduction step of reproducing any one of the sets of waveform data, stored in the storage section, in accordance with passage of time;
• a designation step of designating, during reproduction by said reproduction step of a first set of waveform data of the plurality of sets of waveform data, a second set of waveform data of the plurality of sets of waveform data;
• and
• a step of performing control such that said reproduction step switches the waveform data to be reproduced thereby from the first set of waveform data over to the second set of waveform data in response to waveform data reproduction liming of said reproduction step arriving at one of the possible switchover positions indicated by the switchover position information corresponding to the second set of waveform data designated via said designation step, reproduction of the second set of waveform data being started at the possible switchover position corresponding to the reproduction timing.