Jeff is a pro player from NYC.I owe a ton of thanks to him, whom I studied with for a week at the National Guitar Summer Workshop in Conneticutt back in 1991. In that week, I learned more about how to approach the guitar as far as theory goes than anytime before or since. He also turned me on to a lot of great playes including Robben Ford, Mike Stern, Paul Gilbert and jazz greats John Coletrane and Miles Davis to name a few and had a direct affect on how my playing has taken shape since that time ten years ago. Major thumbs up! If you ever run into him, tell him I said "Thanks".