Just recently as I was practicing, I wanted to test out a different embouchure just to see what kind of notes would come out.. I tried the one where the lips must be rolled in, and seconds later I was able to play a High C above the staff! As an intermediate level musician, I was only able to play up to an Eb just below the top of the staff with my default embouchure setup Only problem with this different embouchure is that the tone and flexibility was terrible and it was difficult to hit the lower register. So now I ask, is this an appropriate Embouchure? Should I stay with it?