![John Petrucci's “Rock Discipline” was the first shred video tape I ever watched. He went over Alternate picking, legato, sweep picking and much more. This exercise 31 was an improv that really John Petrucci's “Rock Discipline” was the first shred video tape I ever watched. He went over Alternate picking, legato, sweep picking and much more. This exercise 31 was an improv that really](https://external-preview.redd.it/A7aqIe_HZbKVHhs0-yznGoKv6akoJrpXSTElG48GgG0.png?format=pjpg&auto=webp&s=8f4ed05ea37b606eeb657ec9e4e13e20c8c82086)
John Petrucci's “Rock Discipline” was the first shred video tape I ever watched. He went over Alternate picking, legato, sweep picking and much more. This exercise 31 was an improv that really
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John Petrucci Looks Back on His Instructional Video 'Rock Discipline,' Says It Was a Pretty Big Deal Back Then | Music News @ Ultimate-Guitar.Com
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Amazon.com: John Petrucci -- Rock Discipline: Book & Online Audio: 9781576234747: Petrucci, John: Books
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