The Mahavishnu Orchestra

[Helm]

yeah he's pretty fast but what always gets me when I listen to his playing is the way he goes from one theme to another effortlessly. People who don't play improv won't understand this, but it shows that he's playing what he's thinking, and when he starts thinking another theme you can actually follow his fingers going from one theme to another effortlessly. Most of us have to wrap our heads around the new idea while we still play the old one, devise a good way to get from point a to point b as we go. He just does it, and it sounds consistently great. I can't explain in any better, but for me it's the best indication that someone has mastered the instrument.