Posted by Pragmatism on May 16, 2002 at 00:07:02:
In Reply to: 3+1 - function of the 4th valve clamp? posted by Kenneth Sloan on May 15, 2002 at 23:20:51:
It's there to keep trumpet players from "borrowing" your euphonium.
A bored trombone or trumpet player decides they'd like to take a crack at playing euph and ask to borrow yours. Just sit back and smile as you hand it to them with a kind "Be sure to use lots of air"...