I have a question that I'm hoping someone can help me with. A couple of months ago, my son (a high school sophomore) had a freak injury caused to his lip by a hook on his braces that cut his mouth to ribbons. In pain and having to play a lot during marching band competition season, he apparently changed his embouchure slightly; pain and numbness ensued,and he had to rest for several weeks. A little over 2 weeks ago, the braces came off, so he is again adjusting (and met last weekwith the longtime teacher he has had--who is now living in another state and working on a doctorate,but was home over Christmas, who helped him adjust his embouchure ever so slightly). Before his longtime teacher came home, we took him to the pre-emininent trumpet teacher in the area, who tried to change his embouchure completely and told him that he had no muscle memory at the corners of his mouth. (This gentleman is a classical trumpeter, who advocates an embouchure in which the trumpet is placed 3/4 on the upper lip and 1/4 on the lower, and points downward). My son could not play that way; he plays jazz and symphonic and marching music and has used an embouchure in which the trumpet is 3/4 on the lower lip and points upward. He had been quite successful in district competitions prior to the injury using his old embouchure. It was my mother who reminded me that when my son was born, the doctor told me he had a slight but common birth defect--he was born missing the levator anguli oris muscle (I believe that's the correct name; it means that his smile doesn't curve upward on one side of his mouth). We were wondering if that might have an effect on his embouchure. When he was in sixth and seventh grade, he had to really work to be able to play the trumpet at all, and it wasn't until he began working with his longtime teacher that he became the better player he is today. We surmised that perhaps the old/current embouchure was one he could use successfully even with the missing muscle, and perhaps the embouchure that the specialist attempted to change him to was one that he was not successful with because of the missing muscle. At present, we are going with our longtime teacher's advice and "not fixing an embouchure that works for" him, but will have to start lessons again with someone--most likely not the pre-eminent teacher since he was insistent that my son MUST change his embouchure. Advice?