Klarinet Archive - Posting 000337.txt from 2004/06

From: ormondtoby@-----.net (Ormondtoby Montoya)
Subj: Re: [kl] Concentricity of barrel bore to upper joint bore; was:
Date: Mon, 21 Jun 2004 18:28:17 -0400

Walter Grabner wrote:

> A big part of the problem is that almost all of
> us play with mouthpieces that end in a 15 mm
> ending diameter.

This is just an observation: I've given away most of the mouthpieces
that I didn't like, but the three that I still own (two of which I don't
enjoy, but I've kept them anyway) all measure 14.84-14.87 at their end
openings.

> Maybe it never did. But it is more likely that it
> warped with use.

I notice that my mouthpieces, being made of hard rubber, have remained
circular at their ends whereas my wood barrel has not.

> You must be careful here, as different
> mouthpiece bores can magnify or reduce
> tuning anomalies.

Since I had my least favorite mouthpieces out of the drawer to measure
them, your comment motivated me to put one of them (5RV) on one of my
barrel 'failures' that I haven't trashed yet. The combination did, in
fact, behave more extremely out-of-tune compared to when I test the
'failed' barrel with my favorite mouthpiece. This was good
reinforcement for the basic concept that barrel and mouthpiece interact.

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