Klarinet Archive - Posting 000592.txt from 2000/01

From: "J. Hobby" <jhobby@-----.net>
Subj: [kl] Re: Reeds extending out over table, was: Vandoren Mouthpiece
Date: Mon, 17 Jan 2000 19:52:20 -0500

If I understand your instructions, this is the result:

I placed the mpc, table down, on a videocassette box (the only absolutely
flat thing I could find close at hand.) From the tip, about 1/2" down,
there is a space where no light comes through. It's an area a bit more than
1/2". Then, there is light that comes through, rather unevenly, down to
about 1/4" from the bottom end of the mpc, and no light comes through there.
So apparently, there's a concave aspect to the table of this mpc.

Did I do what you suggested, and if so, what does it mean? <g>

Jim Hobby

--------------------------

>From: GrabnerWG@-----.com

<< > Interestingly, the Vandoren reed doesn't really fit, either! Just
took it
> out and looked. There's a fair amount of reed extending over the sides
of
> the table bottom. > >>

>Caution! Caution! (Danger, Will Robinson).
>
>At first, when I read these posts, I thought "Big deal, so a little portion
>of the butt of the reed is extending over the table. Means nothing."
>
>Then a thought occurred to me. Perhaps this narrowing is caused by an
upward
>curve of the table toward the butt of the mouthpiece, there fore causing a
>narrowing of the table as it intersects less of the curved surface of the
>outside of the mpth.
>
>Many blanks come off the "assembly line" this way, and the rise must be
>removed by the "finisher".

>There is a way to check on this. Those of you who have observed this, take
>your mouthpiece and lay something totally flat and rigid against the table.
>Look up at a light source to see if any light is "leaking in" between the
>table and your straight edge.

>I personally prefer a totally flat table. Some mouthpiece techs leave a
>slight dip to achieve more of a spring to the reed. (Tom Ridenour dicusses
>this well in his website). However, a dip left there by accident, or
poor/no
>quality control is probably harming the playing characteristics of the
>mouthpiece.

>If the is a large dip, or it extends out past the beginning of the window,
>you're in trouble.

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