Patent ID: 7439429

Claim:
A wind instrument having a neck coupled to a body tube, in which a column of air may be vibrated to produce sound, wherein the neck comprises: a tenon for coupling with the body tube; a interior arc region of the neck; an octave hole located on the interior arc region; and a key mechanism used to selectively uncover the octave hole; wherein the key mechanism, comprises: a first lever, with an octave key on one end thereof, a contact point on another end thereof, and a pivot point between the octave key and the contact point, around which the first lever has rotational freedom; and a second lever, with a contact point on one end thereof, contacting the contact point of the first lever, an octave hole cover on the other end thereof positioned to cover the octave hole, and a pivot point between the contact point and the octave hole cover, around which the second lever has rotational freedom.