 The Clarinet BBoard
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Author: johng ★2017
Date: 2003-12-30 13:57
What is the difference between a 66mm barrel that is made for a Bb clarinet and one made for an A clarinet? The barrels advertised in catalogs make the distinction between the two, but if the barrel is 66mm, wouldn't it work just as well for both clarinets? This also brings up the practice by some players to use the same barrel for both Bb and A to avoid having to remove the mouthpiece when switching from one to the other. That has never worked for me intonation-wise.
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Author: Ed
Date: 2003-12-30 14:19
the bore is different for the A. Although some say you can use the same barrel on both, I have never found this to be the case.
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Author: William
Date: 2003-12-30 14:26
Usually, the barrel of the A clarinet is shorter than that of the Bb. On my Buffets R13s, I use the A barrel for both and allow for intonational variance by leaving a gap when placed on the Bb. So, if the A is in tune with the barrel fully inserted--fine tuning done by pulling the mpc--when switched to the Bb, I leave a small gap (2mm?) to compensate for the tuning difference between the two.
However, if you play LeBlanc Concerto clarinets, Tom Ridenour told me that they are designed to use the same barrel, thus allowing the barrel/mouthpiece switch without having to allow any difference in barrel placement. They will both play in tune with the barrel fully inserted on each instrument.
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Author: Alseg
Date: 2003-12-30 14:37
There is a 0.001 or slightly greater difference in the bore diameters.
This difference is carried over even if a reverse taper is used.
That being said, there are those who interchange barrels between their A and Bb instruments without a problem...but this might be more of a function of the outlet bore size or chamber depth of their mouthpiece, which varies with brand.
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