Understanding Overtone Slots
Every valve depression reroutes your air column through precision-cut brass tubing slides: Valve 2 adds roughly 6% more tubing length (1 semitone), Valve 1 adds ~12.2% (2 semitones), and Valve 3 adds ~18.9% (3 semitones). Using the Valve → Note toggle above lets you visualize every harmonic partial available on a single valve combination—ideal for designing lip-slur flexibility drills (such as Schlossberg, Irons, and Bai-Lin exercises).