wooliteeuph wrote:I am an upstream player due to the fact that I play at the top of the mouthpiece. My current teacher is trying to to help me with that, but that would force me to change to being a downstream player.This makes it especially hard because I actually have a playing gig (8 out of the 12 months) and that would make it hard for me to blend that in with my performing routine.
I think if you approach it in a logical, structured way, there's no reason why you can't learn to use the downstream embouchure as well as the upstream. Think of both embouchures as just more stuff in your bag of tricks, like alternate fingerings.
Better yet, think about the sound and let the embouchure sort itself out along the way.
When I play bass trombone, I occasionally will find myself interchanging the two embouchures depending on what the character of the sound needs to be at that moment. I don't think about it on the tuba at all.
I would suggest something along the following: Starting in a comfortable register that is definitely in your "upstream" area, play a descending scale, holding each note 5 or 10 seconds. Concentrate on actively keeping the "up" embouchure as you get lower, regardless of how horrible it sounds. Keep playing until you simply cannot produce a sound any more.
Then, start on a lower note that is definitely in the "downstream" register, and do the same thing going up. Once again, ignore the quality of the sound and keep going until you cannot produce a tone any longer.
Do this for maybe 5 minutes every day, and then don't think about it again until the next time you do it. It's the thinking about it that will screw you up.
I think Gene Pokorny referred to a similar sort of thing in his Army Conference address; he was speaking about extending a regular embouchure into the pedal register.
I'm working on a method book; email me if you're interested in seeing some of the excercises.
Interestingly, I've always used the word "embrouchure" but when spell-checking this post, found that the correct word is actually "embouchure". Huh.