Klarinet Archive - Posting 001266.txt from 2000/06

From: mus_ldj@-----.edu
Subj: Re: [kl] Pitch Survey
Date: Wed, 28 Jun 2000 14:04:49 -0400

LOL!

I'm doing 7, 8 and 5. I'm working on 4 and #3 is just shot! No.2, I'm toying
with and 1 i'm embarking upon.

"Dee D. Hays" wrote:

> ----- Original Message -----
> From: <mus_ldj@-----.edu>
> To: <klarinet@-----.org>
> Sent: Tuesday, June 27, 2000 5:17 PM
> Subject: Re: [kl] Pitch Survey
>
> > I see what you're saying. As the horn warms up the pitch does to. The
> > swelling causes the lengthy of the horn to become longer, right? How do I
> > control tuning on the effer?
> >
> >
>
> Incorrect. The small amount that the instrument length would change due to
> thermal expansion would not cause a measureable change in the pitch. I've
> run the math on this one. Besides that lengthening the horn makes it go
> flatter not sharper.
>
> The sharpening effect is due the the relationship of pitch to the density of
> air. As air gets warmer, the density drops, sound travels faster and the
> pitch rises. When you blow into a cold horn, the cold horn cools your
> breath so at that point in time the measure pitch is low. As the horn warms
> up, it doesn't cool your breath so much so the pitch rises from your initial
> status.
>
> How do you control tuning on an Eb?
> 1. Carefully selected mouthpiece
> 2. Carefully selected reed
> 3. Carefully selected instrument
> 4. Perfect control of the embouchure
> 5. Perfect control of the breath support
> 6. Perfect control of the oral cavity (tongue position, etc).
> 7. Lots of practice
> 8. ** PRAY **
>
> Dee Hays
>
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