I believe the question was regarding moving the lips and mouth in relation to the mouthpiece, the opposite of keeping the upper lip constant and pivoting the lower jaw and so changing the airstream.lgb&dtuba wrote:Isn't what the original poster described simply the pivot system in practice? If so, then what's the problem?
In fact, what I read was that the poster was keeping the lower jaw constant, and changing the upper lip position. This would be a pivot system reversed, so to speak...



