I was doing a quick scan of the site and I didn't see any threads about embouchures...so I thought I'd bring the topic up here. I am a high school trumpet player. Unfortunately, my range and endurance are not where I would like them to be, or where they should be for advanced ensembles in school, or in the district. I practice for at least an hour every day and have tried numerous different techniques and exercises but have had no luck. I finally brought this up with my private teacher. He immediatly suggested that my problem was due some slight puffing above my top lip. He emphasized that the muscle around my mouth should stay fairly firm while I play. I have been trying to get rid of the puffing for several weeks now without much improvement. I expect to get worse before I get better. Now the muscles are fairly firm except for the skin directly between my nose and my top lip. Is it possible to keep that skin completely firm? Are there any other things I could do to help fix this embouchure problem?