A performance processing apparatus is operable by user with aide of control and sound devices for providing sample music data to data management apparatus. A storage section stores original music data representing a music piece composed of tones. An acquisition section acquires input information from control device which has a detector for detecting either physical action or physiological state of user and operated by user to provide input information indicating detection result by detector. A processing section controls a performance parameter according to input information for enabling sound device to generate tones of the music piece represented by original music data and altered by user. A transmitting section transmits sample music data representing music piece composed of tones controlled by the performance parameter to the data management apparatus which has a storage device for storing sample music data for use as a material of evaluating mental or physical function of user.