I've been suffering with an embouchre problem which, I have learned, is commonly spoken of as 'double buzz'. If you type those exact words into google then several articles come up suggesting remedies. (If anyone is wondering what I mean, go on the wikipedie page which google will find, and there is a short cound clip). I was wondering if anyone else has had problems with this and if so how you got rid of it. It's so infuriating! It can happen on any note but is most likely to occur mid range, particuarly middle Cs (cornet, btw!). If anyone could impart some wisdom I would appreciate it greatly, thanks.