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Ernie Ball 7-String Super Slinky Electric Guitar Strings 9-52 – Ploutone
Dream Theater - John Petrucci's Guitar Gear Rig and Equipment
Music Man John Petrucci JPX 7-String Barolo 2013 – Chicago Music Exchange
Sterling John Petrucci JP157FM Trans Black 7-String (Used) | Reverb
Ernie Ball Music Man John Petrucci JP15-7 Guitar, 7-String, Sahara Burst Flame 749699684510 | eBay
JOHN PETRUCCI Posts Picture Of 8-String Guitar Headstock; Internet Goes Wild - GearGods
John Petrucci talks about PARADIGM Strings - YouTube
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Sterling by Music Man - One of the newest additions to Our John Petrucci Signature Collection The Sterling by Music Man JP157 7-String! Based on his sleek JP15 model. Gorgeous Quilted Maple
Sterling by Music Man John Petrucci JP70 7-String Electric Guitar Stealth Black | Musician's Friend
Paradigm Slinky Electric Guitar Strings | Ernie Ball
The Ultimate Giveaway! - John Petrucci
Sterling by Music Man John Petrucci 157 7-String Electric Guitar - Neptune Blue | eBay
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The Majesty | Guitars | Ernie Ball Music Man
Ernie Ball Music Man John Petrucci Majesty 7-string - Dark Roast M1169 — HIENDGUITAR
