Mouthpiece exercises & buzzing can be dangerous fort he tone development & the embouchure at all, if exaggerated, if taken wordly, if not taken just as some kind of short lip gymnastics. Why ? Because we tend to listen to our "noise making" & tend to compensate missing quality (of sound). A similar effect as playing the high F descant horn in a big symphony: Player try to compensate the missing overtones by more playing effort, which ruins the lips. The effect is harder if one exaggerates all that buzzing & mouthpiece exercises.
The often noted extreme warm-up is of evil also, as we cannot warm up these fine muscles in a similar way as in heavy sports. We have to wake up the muscles by very light work. Warm up is not a way to push the right placement on the lip. If you need to do this, well, then you have no place in the professional field. You will be worn out before the concert starts or at least after the first piece. But you can join the field of amateurs, who really have to warm up to prevent lip harm, as they do not play everyday. So be careful with both things. Prof.Hans Pizka, Pf.1136 D-85541 Kirchheim - Germany Fax: 49 89 903-9414 Phone: 903-9548 home: www.pizka.de email: [EMAIL PROTECTED] _______________________________________________ post: [EMAIL PROTECTED] set your options at http://music.memphis.edu/mailman/options/horn/archive%40jab.org