Performance system

A performance system comprising:

• a plurality of performance information output devices that output performance information;
• a storage device;
• and
• a plurality of automatic performance devices that reproduce the performance information in synchronization with a video distributed by a video distribution server for distributing the video and an audio,
• wherein the performance information output device includes:
• a first identifier storing unit that stores any one of identifiers allocated to the plurality of performance information output devices so as to be different from one another;
• a performance information generating unit that generates performance information;
• a clocking unit that measures time;
• and
• a first performance data transmitting unit that transmits performance data having the combination of the identifier stored in the first identifier storing unit, time information indicating the time measured by the clocking unit, and the performance information to the storage device without passing through the video distribution server each time the performance information is generated by the performance information generating unit;
• wherein at least one of the plurality of performance information output devices includes a synchronization signal transmitting unit that transmits a synchronization signal indicating the time being measured by the docking unit to the video distribution server using an audio signal transmission path for the audio;
• wherein the storage device includes:
• a first performance data receiving unit that receives the performance data transmitted through the first performance data transmitting unit;
• a performance data storing unit that stores the performance data received by the performance data receiving unit, and a second performance data transmitting unit that transmits the performance data stored in the performance data storing unit to any one of the plurality of automatic performance devices without passing through the video distribution server in parallel with the storing of the performance data received by the performance data storing unit;
• and wherein the automatic performance device includes:
• a second identifier storing unit that stores any one of the identifiers stored in the first identifier storing unit and allocated to the plurality of automatic performance devices so as to be different from one another;
• a second performance data receiving unit that receives the performance data transmitted through the second performance data transmitting unit;
• a synchronization signal receiving unit that receives the synchronization signal transmitted through the synchronization signal transmitting unit from the video distribution server using the audio signal transmission path;
• and
• a reproducing unit that reproduces the performance information of the performance data in synchronization with the video distributed at the time when the synchronization signal is distributed, at the timing corresponding to the time indicated by the time information of the performance data including the identifier received by the second performance data receiving unit and stored in the second identifier storing unit and the time indicated by the synchronization signal received by the synchronization signal receiving unit.