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Klarinet Archive - Posting 000234.txt from 2004/12

From: "Keith" <100012.1302@-----.com>
Subj: [kl] RE: klarinet Digest 14 Dec 2004 21:15:02 -0000 Issue 5705
Date: Tue, 14 Dec 2004 17:50:48 -0500

I don't have empirical evidence but this seems very unlikely. Pitch changes
in warming up are mainly because of the air column temperature changing from
cold to warm, with a corresponding reduction in the average density of the
air. Expansion of the material is a very small effect (and opposite to the
effect of air density). Thermal conductivity and specific heat of the
material could affect the warming up period (I guess it might take longer to
warm up?), but not the eventual result. This looks like a snake oil claim.

Keith Bowen

> ------------------------------
>
> Date: Tue, 14 Dec 2004 10:39:46 -0500
> To: <klarinet@-----.org>
> From: "Vann Joe Turner" <medpen@-----.net>
> Subject: Buffet Greenline and temperature
> Message-ID: <008a01c4e1f3$24a01530$9d2b410c@emmauslap>
>
> Hi All,
>
> I'm looking to get a new R13, and have a question on the
> Greenline series.
> On Woodwind and Brasswind one of the user "reviews" seems to
> indicate that the Greenline is not susceptible to change in
> pitch as the horn warms up.
>
> Is this true? If so, it'll appear to be an added advantage.
>
> Best wishes,
> Vann Joe Turner
>
> ------------------------------

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