Klarinet Archive - Posting 000277.txt from 2010/11

From: Joseph Wakeling <joseph.wakeling@-----.net>
Subj: Re: [kl] What is a clarinet?
Date: Thu, 18 Nov 2010 06:30:21 -0500

On 11/18/2010 01:43 AM, Dan Leeson wrote:
> If you will take a clarinet, remove the mouthpiece, fashion a cork with a
> hole in the center, place the cork in the upper end of the barrel, and
> insert an oboe reed in the hole, playing it will result in the instrument
> overblowing an octave. What this says is that the characteristic of
> overblowing a 12th must come not from the straight tube but rather from the
> mouthpiece and single reed combination, though I have no idea what causes
> the mouthpiece and reed to behave the way it does.

That'd be because the effect of having a consistently narrow length of
tube (the oboe reed) connected to a much wider tube (the clarinet bore)
is effectively turning the overall bore shape into something that is
approximately a cone rather than a cylinder ...
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