Klarinet Archive - Posting 000257.txt from 2001/06

From: "Ed & Carol Maurey" <edsshop@-----.ca>
Subj: Re: [kl] B&H 1010s
Date: Tue, 5 Jun 2001 18:51:20 -0400

Actually, I have learned thru actual bore modification work that Gibson is
quite right. Play a chalumeau Bb and then play an unlipped clarinet F.
Unless, the minimum central bore is exactly right the twelfth will be off.
The interval will be wide with too small a bore and and narrow with too
large a bore. Another way of checking for the correct bore is to play a
clarinet F and close the register key. If the bore is right the pitch will
not change. (Of course, the tone will.)

Ed Maurey

----- Original Message -----
From: "Doug Sears" <dsears@-----.net>
Subject: Re: [kl] B&H 1010s

> I think there are several wrong ideas in "Clarinet Acoustics", and this is
> the most egregious one. With no theoretical backing, and very little
> evidence of any kind cited, Gibson insists that overall bore size (or
> specifically the minimum bore diameter in the middle of the instrument)
> determines the tuning of the twelfths between the first and second
registers.
> This is just false. I don't know what caused his mistake, but one way to
> ensure that large-bore clarinets have twelfths out of tune is to play them
> with a mouthpiece and barrel designed for a small-bore clarinet.
>
> --Doug
> ----------------------------
> Doug Sears dsears@-----.net/~dsears
>
> >From: <GrabnerWG@-----.com>
> >
> >> Gibson's conclusion is that large bore clarinets like these simply
could
> >not be played in tune with themselves.
> >> Therefore, they became obsolete when the Buffet R-13 appeared.
> >
> >Of course, the recorded evidence suggests that Gibson is wrong. Listen to
> >recordings prior to the R-13 by some of the artists of the time playing
> >big-bore clarinets. While it may have been more difficult to play large
bore
> >clarinets in tune, it sure doesn't appear to have been impossible.
> >
> >There's also the fact that large-bore "obsolete" clarinets are still
being
> >made today, albeit in small numbers ...
> >
> >Mark C.
>
>
>
>
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