Posted by Matt C. on April 02, 2001 at 10:02:36:
I've been using a home made device called a "cutaway" in private lessons. Its a mouthpiece of simlar dimensions that you use everday, and a portion of the cup cut away (thus the name "cutaway"). It can be used as an embochure visualizer, but the sole purpose is to buzz music on them to improve your buzz effiency. I have noticed a huge difference in tone quality within days. It feels quite strange. Just 5 minutes a day helps a lot. Just thought I would share...