The air reed’s fundamental frequency is set solely by resonator length and end condition

Evidence

When the action of the resonator on the air reed sound source in a flue organ pipe is considered (see Figure 4.14), it is found that the f0 of air reed vibration is entirely controlled by (a) the length of the resonator and (b) whether the pipe is open or stopped. — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 1154

Categorization

• XREF: connects to: Air reed pitch is set entirely by resonator length and pipe openness. — David Howard, Jamie Angus, coustics and Psychoacoustics, 1184; Reed instruments need no resonator reinforcement of their fundamental frequency — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 1208