Author: kdk ★2017
Date: 2016-08-22 00:08
I'm sure all of the recommended barrels are good and one (or several) of them may do exactly what you want. But I'm a little intrigued when you say that "pulling it out 1mm flattened the throat tones noticeably in relation to the rest of the clarinet." A millimeter (if that's accurate) isn't really very much and, if a millimeter is making your your throat notes that flat, you might consider having them adjusted by a good tech.
You need a little room to maneuver, so the barrel shouldn't ordinarily need to be all the way in anyway. The pitch is mostly if not entirely (someone may correct me with more nuanced information) determined by the volume of the air column. If adding a millimeter by pulling out is distorting the scale noticeably, then a barrel that is a millimeter longer may well do the same thing. The bore diameter and length will combine to influence the pitch, so if you only need a millimeter you might get the pitch drop you need by finding another 65 mm barrel with a larger bore. In any case, the throat notes will flatten more than anything else, and if that effect is enough to cause a problem, the best solution may be by re-tuning those notes slightly.
Karl
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