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John Petrucci: How to Use Open Strings as Lead Guitarist | Music News @ Ultimate-Guitar.Com
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John Petrucci Play Tests The New Ernie Ball Cobalt Electric Guitar Strings - YouTube
DREAM THEATER Guitarist JOHN PETRUCCI Demonstrates Open String Techniques (Video) - BraveWords
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Ernie Ball - John Petrucci's favorite guitar strings. - YouTube
Creative Guitar Studio: VIDEO: John Petrucci Demos Ernie Ball M-Steel Guitar Strings...
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Dream Theater - John Petrucci's Guitar Gear Rig and Equipment
Introducing the John Petrucci Majesty 8 - John Petrucci
John Petrucci May Use 8-String Guitar on the New Dream Theater Album; Ernie Ball Stock Rises 1,000,000% | MetalSucks
John Petrucci quote: Real thick strings - your hands start to get fatigued...
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New Music Man John Petrucci 8 String! - YouTube
Adirondack Guitar Profiles: John Petrucci
Ernie Ball Music Man BFR John Petrucci Koa Island 7 Strings Electric Guitar | eBay
The John Petrucci Guitar Method - Episode 6: Scales on 1 String, 2 Strings, Playing in 3 Octaves - YouTube
Review: Ernie Ball Music Man John Petrucci Majesty | Guitar.com | All Things Guitar
Ibanez RG1527Z JPM P7 John Petrucci 7 strings | Reverb Canada
![Ernie Ball Strings - John Petrucci of Dream Theater [Magazine Advertisement] - 2015: Ernie Ball: 6238301085530: Amazon.com: Books](https://images-na.ssl-images-amazon.com/images/I/91u-5gAW2kL.jpg "Ernie Ball Strings - John Petrucci of Dream Theater [Magazine Advertisement] - 2015: Ernie Ball: 6238301085530: Amazon.com: Books")