Posted by Jeremy Rosen on November 13, 1999 at 08:58:27:
Excuse me, but I am not well versed in the technical matters, but is it
possible to have a 3/4 BBb 4 piston valve, valve-front tuba converted into a
rotary valve tuba? If so, what would it cost and would it simnply be better
to just buy a such a horn?