What is Embouchure? Embouchure simply means the muscles that surround the lips! It is these muscles that allow you to be able to play the trumpet. If your lips and cheeks are so relaxed with no muscle contraction, you simply will not be able to get many notes on the trumpet…maybe pedal tones, but not much else.
Many, many , many trumpet players and trumpet students have trouble developing their trumpet embouchure. Funny Thing: Sometimes the smarter you are, the harder it is to make good gains in embouchure development. Trumpet Embouchure development is not always a logical pursuit and therein lies the problem.
Get some advice from someone who had been in the trenches and fought the battle: