Rock Guitar Video Lesson - Rock Guitar Licks and Finger Tapping. John Davis beginner guitar lesson. Complete with fretboard diagrams and visual instruction. Using a Charvel SoCal with DiMarzio pickups and Marshall JCM 900. John E. Davis is the owner and lead guitar instructor at the Texas Guitar School in Arlington, Texas. More John E. Davis guitar info available at www.TexasRockGuitarist.com.