Patent ID: 7888576

Claim:
An ensemble system comprising: a plurality of performance terminals each having at least one performance operator unit for performance operation by a user; at least one tone generator; and a controller connected to the plurality of performance terminals and the at least one tone generator to control each of the performance terminals, wherein the controller includes: a storage device that stores music data for performance including a plurality of performance parts; an operation unit that gives instructions to start and complete a performance; a performance control unit that assigns the plurality of performance parts to respective ones of the plurality of performance terminals, reads out the performance part assigned to each of the performance terminals in accordance with a way in which the performance operator unit of the respective performance terminal is operated, and outputs performance data representing the read-out performance part to the tone generator; a deviation detecting unit that detects, for each of the performance terminals, a deviation between the progression of the performance part read out from a guiding performance terminal, which is assigned from one of the plurality of performance terminals in accordance with a way in which the performance operator unit of the guiding performance terminal is operated and the progression of the performance part read out from each of other performance terminals in accordance with a way in which the performance operator unit of the each of the other performance terminals is operated; and a display unit that displays the deviation between the progression of the performance part read out from the guiding performance terminal and the progression of the performance part read out from each of the other performance terminals.