I just stumbled on this, and thought "Wow! I just had a clinic with Jim Thompson!" Click on the audio link on the bottom left of the page. There are several topics to choose from in the window that pops up after you select your connection speed. Jim Thompson is down at the bottom. He has three topics. Great stuff! http://www.yamaha.com/artistmodelseries/index2.html *Just listened to David Krauss discuss resonance...he then played the opening of the Honneger (sp?) Intrada, 2 ways: 1 pushing air; the second he talks about relaxing and releasing air, rather than pushing. The difference in sound is overwhelming! Both players (Jim Thompson and David Krauss) talk about singers alot and compare trumpet playing to singing in terms of overtones and tone quality and tone quantity. Very interesting to hear.