INFORMATION PROCESSING SYSTEM WITH GRAPHICAL USER INTERFACE CONTROLLABLE THROUGH VOICE RECOGNITION ENGINE AND MUSICAL INSTRUMENT EQUIPPED WITH THE SAME

A musical instrument is computerized for electronically generating tones, and an information processing subsystem assists users selectively to change the attributes of the tones, wherein the information processing subsystem includes a speaker recognition engine for identifying a player with one of registered users and a graphical user interface transferring a digital image signal representative of a picture customized by the registered user to a display unit so that the user can check the attribute during the performance.