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Re: Clarinet Acoustics Question

Author: Chris P
Date: 2014-11-20 18:04

Selmer and Leblanc have in the past offered the option of improved throat Bb mechanisms that either involved both the speaker tube and an extra vent for the Bb to open at the same time or to completely separate the function of the speaker vent and the throat Bb vent so neither both of them are open at the same time (either one or the other is open at any given moment) which involve the same fingering as the regular throat Bb so anyone can use it without having to learn a new fingering.

Depending on how the mechanism is made, the throat Bb vent is either allowed to open when the thumb is off the thumb ring or the throat A key is open - the latter is probably the better option even though it may be more costly to produce.

If the throat Bb vent is to be a separate one from the speaker tube, then it will be in the same distance from the top of the instrument and the same diameter as the Bb trill key tonehole (or maybe slightly larger in diameter if a bush is fitted to prevent water getting into it), but in a different radial position on the joint.

Former oboe finisher
Howarth of London
1998 - 2010
The opinions I express are my own.

Post Edited (2014-11-20 19:03)

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