Posted by Boose-y on April 12, 2003 at 09:37:10:
In Reply to: Re: YEP-641 posted by Rick Denney on April 11, 2003 at 18:06:55:
If it is a four-valve Besson BBb comp tuba (not too old - 1970's or later), the biggest differences between it and a YBB641 are playability and intonation...both way over in the + column for the Boosey.