Musical instruments, and structural parts therefor, namely bells, leadpipes, tuning slides, braces, valves, hand slides, key resonators, barrels, headjoints, and instrument bodies; musical instruments, and structural parts and inserts therefor, namely bells, leadpipes, tuning slides, braces, valves, hand slides, key resonators, barrels, headjoints, and instrument bodies, with treatments, features and components that enhance sonic quality and playability; musical instruments, and structural pa...

Treatment of musical instruments, components and accessories; treatment of musical instruments, components and accessories to enhance sonic quality and playability