[Dixielandjazz] Bechet's sarrusophone

Paul Edgerton paul.edgerton at gmail.com
Fri Nov 16 11:14:01 PST 2007

Larry Walton wrote:
> Does anyone know why the clarinet with it's straight bore jumps a 12th but
> the flute over blows at the octave with a straight bore also?

Yes, I do...

(Oh, you wanted the answer? OK then!)

A clarinet is acoustically a cylinder closed at the mouthpiece end. It
has a pressure anti node at the mouthpiece end so it produces only odd
partials. That is also why a stopped pipe produces a fundamental one
octave lower than an open pipe of the same length.

The hole in the lip plate of a flute means it has a pressure node at
the mouthpiece, so it produces both even and odd partials.

(Google is your friend)

-- Paul

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