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Klarinet Archive - Posting 000957.txt from 2000/09

From: George Kidder <gkidder@-----.org>
Subj: Re: [kl] Correlation: Tip opening and tongue speed
Date: Fri, 29 Sep 2000 16:52:31 -0400

At 01:19 PM 9/27/00 -0400, Walter Grabner
wrote:

>
>Here is my concept - With all other things being equal, a reed on an open
tip
>can/maybe MUST move farther on each vibration. Therefore it would take more
>time for the reed to "flex" and be ready and in position for the next tongue
>stroke.
>

Whoa.

If the reed vibration frequency is entrained by the resonance of the rest
of the instrument, it vibrates at the same frequency as that of the tone
being produced. Should it take more time to move from "flat" to "bent up"
on one mouthpiece than on another, this implies that the pitch of the note
is lower on the first mouthpiece. Therefore, while the reed may move
different distances as a function of mouthpiece design, the time to move
from "flat" to "bent up" must be constant for any pitch being played.

On the other hand, if the reed acts as a generator of white noise which is
filtered by the body of the instrument to produce the different tones, this
could be true. However, I don't believe that the reed is just a white
noise generator.

George Kidder
Bar Harbor, ME

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