Patent ID: 6933434

Claim:
A musical tone control system comprising: a motion detecting device capable of being carried by an operator, said motion detecting device generating a detected motion signal corresponding to motion of the operator carrying the device, and transmitting same to an external device; a musical tone generating device that generates musical tones; a control device that receives the detected motion signal transmitted from said motion detecting device and controls generation of musical tones from said musical tone generating device based on the received detected motion signal; and a notifying device that notifies a state of the operator; wherein when said control device determines that the operator is not in a moving state, said notifying device notifies the operator of the determination after a predetermined time period elapses after the determination is made; wherein said control device is responsive to the notification that the operator is not in the moving state from said notifying device, for performing control to stop the generation of the musical tone from said musical tone generating device, and for performing control to resume the generation of musical tones from said musical tone generating device after a predetermined time period elapses from the stoppage of generation of musical tones; and wherein said control device controls said musical tone generating device so as to gradually raise performance tempo after the resumption of generation of musical tones.