Patent ID: 7968784

Claim:
A performance device, the performance device comprising: an operator adapted to be operated by a performer; a time calculation means for calculating a time period between a timing when the operator is operated and a previous timing when the operator was previously operated; a determination means for determining whether the time period equals or exceeds a specified time period; a tempo setting means for setting a performance tempo; a storage means for storing performance data; a performance means for reading the performance data stored on the storage means to carry out a performance based on the performance tempo set by the tempo setting means; a performance position changing means for changing a performance position of the performance carried out by the performance means to a specified performance position when the operator is operated and the determination means determines that the time period equals or exceeds the specified time period; and a tempo changing means for changing the performance tempo based on the time period calculated by the time calculation means when the operator is operated and the determination means determines that the time period does not equal or exceed the specified time period.