Klarinet Archive - Posting 000798.txt from 2000/05

From: Daniel Leeson <leeson0@-----.net>
Subj: Re: [kl] Eb on bell
Date: Wed, 17 May 2000 12:45:56 -0400

I am unable to hear any significant difference in note of the upper
joint when I listen TO OTHERS playing a clarinet with a traditional
lower joint as contrasted with the same player using a basset joint. I
have never played an instrument under such circumstances so I cannot say
if I could detect a different were I the player.

Keith wrote:
>
> >From: George Kidder <gkidder@-----.org>
> Subject: Re: [kl] Eb on bell
>
> >The utility of resonance fingerings, which are always changes in the
> pattern of open and closed holes BELOW the hole that is the primary vent
> for a note, says to me that the lower part of the clarinet does in fact
> influence the sound. Some of these fingerings (e.g., closing the lowest Eb
> key as part of a resonance fingering for "open" G) are at great distances
> from the primary vent. So a question for Dan - in your experience, do the
> upper ("left hand") notes sound or feel any different when played on a
> standard clarinet then they do with a basset lower joint?
> <
>
> This is true, and so was Dan's original comment. His is correct for a
> 'plain'
> fingering in which there is a length of pipe closed by the fingers then all
> open holes. It isn't correct for forked fingerings, where there is a pipe,
> a partially
> open pipe, a section of closed pipe, then open pipe again. The resonance
> fingerings (not a very good term, really) or fingerings like L123R2 for F#
> clarinet
> register are ALL forked, and the acoustic analysis is then much more
> complicated.
> As George points out, the results can be counter-intuitive. What these
> fingerings
> must be doing is damping the "nasty" partials and resonating on the "nice"
> partials (the dark partials, of course!). So the analysis and effect will
> be strongly
> frequency-dependent.
>
> The question to Dan is still interesting!
>
> Keith Bowen
>
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--
***************************
** Dan Leeson **
** leeson0@-----.net **
***************************

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