Air Columns And Toneholes- Principles For Wind Instrument Design -

A series of open toneholes creates what is known as a . This lattice acts as a high-pass filter.

: Opening a tonehole effectively shortens the vibrating air column, though the standing wave often propagates slightly past the first open hole—a phenomenon exploited in cross-fingering Bore Shape & Harmonicity A series of open toneholes creates what is known as a