Klarinet Archive - Posting 000280.txt from 2002/01

From: Dan Leeson <leeson0@-----.net>
Subj: Re: [kl] Benade Clarinet Mouthpiece Overblowing at the Octave?
Date: Fri, 11 Jan 2002 16:15:55 -0500

While this is interesting information, it is not entirely pertinent to
the point I was making. It was asserted that Benade denied that such a
phenomenon existed. What you have attempted to explain why it does
exist, and that is valuable. But my assertion is still correct, namely
that the phenomenon happens and I find it difficult to understand how
someone suggested that Benade contradicted its occurence.

Perhaps there is some better language to be understood in terms of what
he actually said. There may well have been caveats in his statement,
but should the original assertion be correct (which dealt with his
denial about the phenomenon), then that assertion is false, for whatever
reason.

Dan Leeson

Doug Sears wrote:

> I think the oboe-reed plus clarinet combination overblows (approximately) at
> the octave because the overall shape is more like a cone than a cylinder.
> Reed end: very small. Bell end: large. The part in between is like a very
> lumpy cone, if you think of it as a cone, and so you'd expect some terrible
> intonation problems. BTW, the Turkish zurna is built along those lines:
> double reed on a conical staple, then a cylindrical section where the
> fingerholes are, and a flaring bell. It overblows approximately at the
> octave.
>
> Benade wrote about the flute/clarinet combination in _Fundamentals of Musical
> Acoustics_, Chapter 22.6, "B. Implications of Putting a Flute Head Joint onto
> a Clarinet" (p. 490 in the Dover edition).
>
> Besides these two combination instruments, though, I'm pretty sure the
> original post was correct about a "clarinet" that overblows at the octave.
> It's not in _Fundamentals of Musical Acoustics_, but in one of Benade's
> papers, and involved a very strange register hole. I'll see if I can find the
> article.
>
> --Doug
>
> Dan Leeson wrote:
>
>
>>I have also reported on this list as early as 5 years ago that a
>>clarinet with a cork in the upper end of the barrel and which cork had a
>>hole in it with an oboe reed inserted there overblew an octave.
>>
>
>
>
>
> ---------------------------------------------------------------------
>
> .
>
>

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** Dan Leeson **
** leeson0@-----.net **
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