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Re: Reconciling Tuning Rings & Adjustable Barrels

Author: OneWatt
Date: 2021-04-18 04:57

donald wrote:

> I've never closely examined any of the adjustable barrels that
> are now popular, but I THOUGHT the construction was such that
> as they changed length the bore remained without a "step". Of
> course, I've no idea how this can be done and have always been
> a bit curious to take a close look- so can't verify this, but I
> can't see why the top players would BOTHER with a Zoom barrel
> etc if this wasn't the case?

Having just checked, I can confirm that the RS Berkeley adjustable barrel - when expanded from being completely closed - does introduce a section of inner bore that is not equal in diameter to the other sections.

I haven't detected meaningful mismatches in tuning across registers (or between upper & lower joint notes) when using it to tune the instrument WITHIN REASON. Extreme increases/decreases in length would be another matter.

An adjustable barrel won't turn a Bb clarinet into an A or a C instrument ;-)

- - - - - - - - - -
Israel = Ancient Hebrew for "Wrestles with God"
Klarinet = Ancient Greek for "Struggles with Reeds"

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