Trumpet valves combine with lip synchronization to expand pitch range

Related

• Flute playing frequencies are impedance minima; trumpet’s are maxima (similarity 0.82)
• Tenors need not tune their tracts because their pitch-to-formant ratio stays high (similarity 0.82)
• A pianoforte with raised dampers can physically re-echo sung vowels via sympathetic resonance (similarity 0.81)
• Only the octave stays perfectly in-tune in equal temperament (similarity 0.80)
• No trumpet is built that plays in tune for all fingerings (similarity 0.80)
• The voice drives the tract noninteractively whereas trumpet lips receive feedback (similarity 0.80)
• Trumpets need a movable tuning slide because fixed third-valve length is inaccurate (similarity 0.79)
• Trumpet lips open on high pressure because notes are played above resonance (similarity 0.78)
• Trombone slides overcome tuning compromises that valves require (similarity 0.78)