Hi All, I have just realized after an excellent lesson, that I need a serious rebuild of my embouchure. (Background: adult restarter on cornet, playing for a year now, serious issues getting high notes and dreadful tone if I am foolish enough to attempt them). I understand what I need to do - a change in the angle of the mouthpiece on my lip - and I know it will take time. Naturally, the week before the Christmas concert seems like a bad time to try something new, whereas January feels like the perfect time. My teacher has suggested continuing to play, any old way, while doing this. I'm not so sure that's sensible, and I'm wondering if it would be better to stop allowing myself to play the 'bad old' way entirely. I am capable of being exceedingly patient. What do others do while rebuilding chops?