John Petrucci - Rock Discipline
John Petrucci - Rock Discipline
Watch john petrucci - rock discipline FilmoFlix. Rock Discipline is an spectacular two-hour epic on the art of the modern rock guitar playing. John Petrucci covers developing speed and accuracy, chromatic exercises, playing with dynamics, connecting scale fragments to form long solo lines, and much, much more..
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- Jeter: John Petrucci,
