I mentioned in my embouchure thread that I had some air pockets when playing high notes in my lower lip and sometimes upper. I have been practicing softly and now it seems as if the lower left corner is the only part of my embouchure that has the air pocket. It doesn't only happen with higher notes though sometimes just notes on the staff. Any other tips to 'tighten' up or strengthen that part of my embouchure?
Thanks in advance,