Klarinet Archive - Posting 000067.txt from 2003/06

From: "Thiel, Mark" <mark.thiel@-----.com>
Subj: [kl] "Blow-out", was: Buffet
Date: Mon, 2 Jun 2003 11:34:38 -0400

Walter Grabner wrote:
. . .
>Wear is inevitable and can come in many forms and in many different areas
of the instrument.
. . .
>Year of rough swabbing may have rounded tone hole edges unacceptably.
. . .

Walter, how do you tell if the degree of tone hole rounding is
unacceptable?
I'm curious because I remember Arthur Benade always espousing a
"rounder is better" philosophy and saying that sharp corners cause
undesirable
turbulence in the airflow. He claimed that reproductions of period
instruments
often didn't play and sound as good as the originals because the tone holes
were
machined as sharp as modern industrial technology could make them, while
some
of the rounding on the period instruments may have been design intent rather
than solely the effect of years of wear.

Anyway, is it possible that rounding caused by overenthusiastic swabbing
etc.
can make the note that uses that particular tonehole go sharp or maybe
modify
the bore enough to affect notes further down?

Mark Thiel

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