John Petrucci Psycho Exercises 4
John Petrucci Psycho Exercises 1
John Petrucci Psycho Exercises - The Secret Tape -Subs[ESP]
John Petrucci Psycho Exercises 3
John Petrucci Psycho Exercises - The Secret Tape [NO SUBS]
John Petrucci Psycho Exercises 2
john petrucci psycho exercises 2
John Petrucci Psycho Exercises The Secret Tape
john petrucci psycho exercises 3
John Petrucci - Rock Discipline
John Petrucci Imitates Adam02 (youtube guy)
John Petrucci Psycho Rig Guitar Tech
John Petrucci Psycho Excercises #1
How John Petrucci learns new songs
John Petrucci Phycho Execises 3. Subs[ESP]
John Petrucci Psycho Exercises - The Secret Tape (Legendado)
John Petrucci, Tosin Abasi, and Devin Townsend break down their INSANE Techniques
John Petrucci dream theater Senam Jari Gitar Discipline Guitar
John Petrucci - Exercise
Dream Theater's John Petrucci Plays His Favorite Riffs