 The Clarinet BBoard
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Author: SVSorna05
Date: 2009-03-29 00:35
HI I have a 72 Buffet. It tunes pretty well however the middle C and B are 15 cents high. Is there a way to fix this problem. I have tried pulling the bell and it doesn't bring it down enough. Thanks for the help.
-Dain-
Post Edited (2009-03-29 03:50)
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Author: Hank Lehrer
Date: 2009-03-29 04:08
Do you mean C 4 or C5 (see the staff on the page above)? I'd try pulling the middle section but keep the bridge key portioned correctly. It sounds like you may need to compromise.
I always tune the G (G4) first and adjust the barrel, then the octave higher (G5) and adjust the middle section. Then and only then do I make any bell changes for C5.
Did this just happen? Or did you just discover it?
HRL
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Author: Bob Phillips
Date: 2009-03-29 05:24
I'm assuming that by middle B and C, you mean the third line B and third space C. The overblown (with register key) lowest E and F. These notes are often sharp and/or the E and F flat. Few clarinets make perfect 12-ths (1-1/2 octave register jump) because of compromises in the location of the register key. It is place higher than is good for the "long" B/C in order to bring the higher clarion register into better tune.
If you mess around a lot, you can bring down these notes; but then you will have to lip up the low notes.
One thing that is supposed to help "narrow the 12ths" is to use a tuning barrel with a reversed taper. Unlike a saxophone that gets larger toward the bell, a reverse taper barrel narrows from the mouthpiece toward the upper joint. Moening, and Chadash branded barrels are sold by Buffet, and custom barrel makers do that sort of work --adapted to your particular instrument.
I've checked the tuning with only one Moening barrel, and it came nowhere close to closing the 12ths by 15-cents on my Buffet RC.
My tuning routine is to set the throat tones and the G at the top of the staff using the tuning barrel. Then, I set up the top 4th line D and 4th space E by pulling at the middle joint.
A couple of millimeters at the barrel is a large percentage of the distance from mouthpiece to the right forefinger, but not much compared to the distance from the mouthpiece to the bell. So, adjustment at the barrel is more effective at the top of the clarinet than it is at the bottom.
Fiddle a bit to find your best compromise. And, if you go in search of "miracle" barrel, be sure to check a couple dozen before giving up.
Bob Phillips
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Author: Ed Palanker
Date: 2009-03-29 18:09
I suggest perhaps you try some Backun bells to see it they help if pulling the middle joint and bell out don't work. I love them. ESP http://.eddiesclarinet.com
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