I have actually been looking into some K&G mouthpieces after reading that Robbert Vos uses one. Hadn't heard much about them beforehand. The size 5's...
I was the one who first contracted with John to publish the piece with recorded synthesizer. That's while I was running Whaling Music Publishers. In...
I also have a Besson New Standard euphonium which is very high pitched on the 6th partial. For (treble clef) G I use 1-3 (or 1-2), for F# 1-2-3, but...
A subscription fee would probably be the easiest. A person pays maybe $10-20 for XX amount of time, and gets to demo as many mouthpieces as they want...