Patent ID: 7394010
Filing Date: 2008-07-01
Classification: G10H

Abstract:
1. A performance apparatus comprising: a plurality of key switches arranged two-dimensionally, each key switch being assigned a tone pitch; a memory storing tone data corresponding to said plurality of key switches; a tone generation section that, on the basis of the tone data stored in said memory, generates a tone corresponding to any actuated key switch among said plurality of key switches; a mode setting section that actuates a tone adjusting mode for causing the key switches to function as tone-adjusting operators for each tone to be generated by said tone generation section; and a tone adjustment section that adjusts with at least one of the key switches, while the tone adjusting mode is actuated, a predetermined tone factor of each tone to be generated; a light-emitting element associated with each of said plurality of key switches; and a light emission control section that controls light emission of the light-emitting elements to illuminate in a line all of the light-emitting elements located at an X- or Y-coordinate position of any actuated key switch for adjusting the predetermined tone factor.