Wind musical instrument with pitch changing mechanism and supporting system for pitch change

摘要

Three valve assemblies (5a/ 5b, 5c) are linked with finger buttons (15) and inserted into a pipe structure (4) of a trumpet (2) for changing the length of air column, and a supporting system (1) assists a player in fingering on the finger buttons (15); sensors (23) are adhered to the finger buttons (15) so as to supply a detecting signal (S1) representative of force exerted on the finger buttons (15) by the player to a controlling unit (25); when the force exceeds over a threshold, the controlling unit (25) energizes actuators (22) connected to the valve assemblies (5a, 5b, 5c) so as to make the player feel the valve assemblies (5a, 5b, 5c) lightly changed.