Patent ID: 7049503

Claim:
A wind instrument for selectively producing acoustic tones and electric tones, comprising: an acoustic wind instrument including a tubular body defining a column of air inside thereof, a mouthpiece connected to one end of said tubular body and giving rise to vibrations of said column of air for producing said acoustic tones when a player blows thereinto, and a pitch changing mechanism provided for said tubular body and manipulated with fingers of said player so as to change the length of said column of air; and an electronic system including a quasi mouthpiece connectable to said one end of said tubular body instead of said mouthpiece and permitting said player to blow thereinto without provocation of said vibrations, and plural sorts of sensors for producing detecting signals representative of actions of organs of said player and supplying said detecting signals to a signal processing unit so as to permit said signal processing unit to produce an audio signal for producing said electric tones.