É maravilhosa a oportunidade de ouvirmos uma orquestra perfeita os melhores solistas que o mundo pode nos oferecer. A Rússia está de parabéns também na música, obrigado por isso.
when people ask me why I play the flügelhorn (and what is a flügelhorn!) I show this video! (I still need 50 years of work to try to match this wonderful way of playing ;-)) kudos!
Now you see that the emboshure mask of every player is complete different. So when you trumpet teacher says to you "make it this way or that way" it's pure nonsense.
I agree that different players can have different embouchures leading to good performance (this movie proves it....) but why consult a trumpet teacher if you say that he speaks pure nonsense? He should take your physical being into account, and give you advise (= teaching you!). This can involve that you have to (try to) change things in your embouchure ;-)