Upward note bending fails because airflow cannot reinforce both resonances at once

Evidence

If a pipe is overblown, its f0 jumps to the next higher mode that the resonator can support: up one octave to the second harmonic for an open pipe, and up an octave and a fifth to the third harmonic for the stopped pipe. — David Howard, Jamie Angus, coustics and Psychoacoustics, 1211 (#qualifies, via linked claim)

Categorization

• XREF: connects to: Note bending works when reed and vocal tract resonances reinforce each other; Raising airflow or lowering the cut-up makes flue pitch jump discontinuously; Increasing flue airflow makes pitch jump upward in discrete overblown steps (+3 more)

Broader Connections

• Note bending works when reed and vocal tract resonances reinforce each other #contradicts (0.95)
• Overblowing a pipe jumps its pitch to the next resonator-supported harmonic #qualifies (0.85) — David Howard, Jamie Angus, coustics and Psychoacoustics, 1211
• Raising airflow or lowering the cut-up makes flue pitch jump discontinuously #expands (0.80)
• Increasing flue airflow makes pitch jump upward in discrete overblown steps #expands (0.80)
• Flute tone arises from jet instability locked to tube resonances #expands (0.75)
• Air reed frequency rises with airflow velocity and falls with cut-up length #expands (0.75)