Klarinet Archive - Posting 001143.txt from 2000/06

From: mus_ldj@-----.edu
Subj: Re: [kl] V12
Date: Tue, 27 Jun 2000 02:05:59 -0400

How do we know which thickness of reeds are best for which facings of
mouthpieces?

Richard Bush wrote:

> I hope I'm not butting in. Ed is right, but I would like to add a bit to
> what he has said.
>
> A piece of cane tubing is initially much thicker from the outer bark to the
> inside radius of the tube than what is ever used in making a single or a
> double reed. The wood immediately beneath the bark is the hardest of the
> "white" material. The white material gets progressively softer toward the
> center or inside radius of the tube.
>
> If a reed blank is made thick, the material closest to the tip will be
> softer than the material toward the back of the reed. This is relative to
> the intrinsic hardness of the wood piece in question.
>
> The scheduled profile of single reeds (or double reed "sticks" which might
> be cane processed to a specific thickness, a particular profile or vamp and
> having certain side to side dimensions) can also vary a great deal. A reed
> can be cut with more or less "heart."
>
> The variables go on and on. If I knew all of the variables and could control
> them I could be more lucid in what I've stated above.
>
> "Edwin V. Lacy" wrote:
>
> > On Sat, 24 Jun 2000, Christopher Hill wrote:
> >
> > > The thickness of the blank affects the density of the cane, plus, the
> > > back area of the vamp (by the bark) will be thicker.
> >
> > I think the relevant concept is that a thicker blank or thicker reed may
> > affect the mass of cane, but not the density. Density, as the term is
> > used in such a discussion as this is a property of any substance which is
> > more properly called "specific gravity." This is a "ratio of the mass of
> > a given volume of any material to the mass of an equal volume of water."
> > Both mass and density, among many others, are qualities which will affect
> > the vibratory characteristics of a reed.
> >
> > Ed Lacy
> > el2@-----.edu
> >
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