G10D9/10

MUSICAL INSTRUMENT

A new duct head wind instrument with a compression duct having a multi-section resonating tube containing a plurality of tone holes with a headjoint, neck, upper and lower body and footjoint. The new instrument embodies improvements for wind instruments, duct heads, and compression ducts. These improvements result in increased range, playability, stability, tunability, dynamic range, projection, harmonic stability, responsiveness, tonal characteristics, and ergonomics.