JACK GRASSEL - 20 TOP JAZZ GUITAR LESSONS Jazz guitar master Jack Grassel gives performance tips, demonstrates techniques, and plays amazing guitar on this comprehensive DVD, which covers: music business advice, simultaneous bass and chords, single-note improv and bass, simulating multiple guitars, working with a vocalist, posture and right-hand technique, colorful altered chords, power practicing, melody chords, 12 keys in one position, student-teacher relationship, and much more. Guitar One magazine has voted Jack Grassel One of the Ten Best Guitarists (You Probably Don't Know) in America. The Wisconsin Area Music Industry has named him Jazz Artist and Guitarist of the Year seven times. DVD.