The Physics of Playing the Trombone, Part 1: Most brass pedagogy remains disconnected from the underlying physics.

The article challenges the traditional mass-spring model of brass playing by developing a new lip vibration model based on flesh properties and mouthpiece contact, showing that range depends on boundary conditions rather than lip tightening alone. Topics include limitations of the tight-lip model, effects of mouthpiece pressure on pitch; and how plate vibration theory predicts instrument ranges.