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Re: Tuning Rings

Author: donald
Date: 2015-05-16 12:27

As far as the pitch of any given note is concerned there is a relationship between the LENGTH of the tube and the VOLUME of the bore. The gap that is created when you pull out a joint increases this volume at the same time as the pulling out is increasing the length....
For short tube notes the volume of the bore MAY be increased so that notes will be flattened to a degree that is greater than is necessary given the amount pulled out. Obviously the longer the length of tube, the less influential this effect will be.
Now
Given that with short tube notes pitch will ALREADY be flattened to a greater degree than long tube notes by any given amount of pulling out due to the proportional change in the length of the tube, it is probably a good idea to do what we can to lesson the exageration of this flattening caused by an increase in the volume of the bore.
(I'm pretty much in agreeance with Jarmo above, just being more specific)

However,
It is also true that the tuning rings *may* eliminate turbulence in the bore. However please note that the tone of the clarinet is not caused by a flow of air down the clarinet, but by pressure waves pulsing down the clarinet (there is in fact a very small flow of air, but it's not actually making the sound- the pressure waves
My experience...
when pulling out more than 1 or 2 mm the tuning rings make a difference to pitch of the lower register short tube notes. I found tuning rings a bit annoying, and so went to the bother of finding a clarinet/barrel/mouthpiece combination where I didn't need to pull out too far...
As far as the stabilisation of sound is concerned- yes, I agree this is barely perceptible but I think it DOES make a difference, but others have not found this to be so and I don't care enough to argue (or try to somehow prove my point).
One other note- I have a 65mm barrel that I like very much, but is too sharp to play one warmed up. So if I am using this barrel I will put a 1mm tuning ring in the mouthpiece end, effectively lengthening the clarinet. This causes no problems unless I'm switching mouthpieces, then it's a real pain.

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