Title: Musical performance apparatus
Application Number: 200510071130 Application Date: 2005.05.20
Publication Number: 1702735 Publication Date: 2005.11.30
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G10C3/02,G10B1/00,G10D1/00,G10D7/00,G10H1/00,G10H5/00,G10F1/00
Applicant(s) Name: Yamaha Corp. Address:
Inventor(s) Name: Koizumi Tomonori, Lu Liping
Attorney & Agent: liu xinyu yu mengchun
Abstract:
     In an electronic keyboard instrument ( 1 ) being an example of a musical performance apparatus having a musical operation unit, a unique musical performance apparatus is formed by an outer face of its exterior ( 2 ), and part or a whole of the outer face of the exterior ( 2 ) is formed as a temperature sensitive discolorable layer, for example, as shown by the hatched outer faces of upper side panels ( 22 ), lower side panels ( 23 ), and a back panel ( 25 ), so that at least part of the exterior ( 2 ) changes in color according to a change in environmental temperature or a temperature change caused by radiant heat by illumination of lights ( 34 ). In order to forcibly discolor the temperature sensitive discolorable layer of the exterior ( 2 ), it is preferable that heaters or Peltier modules are incorporated in the exterior ( 2 ) and electricity is supplied thereto for enabling heating, or heating and cooling.
Time: 13
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