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Amazon.com: Ernie Ball 7-String Skinny Top Heavy Bottom Slinky Nickel Wound Electric Guitar Strings, 10-62 Gauge (P02615) : Musical Instruments
John Petrucci Explains Why He Didn't Want to Use 8-String Like Other Guitarists, Remembers the One Time He Made Music for Video Game | Music News @ Ultimate-Guitar.Com
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2015 Ernie Ball Music Man Majesty 7-String John Petrucci Signature Pol – Ish Guitars
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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
Music Man John Petrucci JPX 7-String Barolo 2013 – Chicago Music Exchange
Petrucci Guitar Tech REVEALS Setup | Guitar Tech Tips | Ep. 47 | Thomann - YouTube
Dream Theater - John Petrucci's Guitar Gear Rig and Equipment
Sterling by Music Man John Petrucci JP70 7-String - Mystic Dream – Leitz Music
Ernie Ball Music Man John Petrucci 7 JP-7 20th Anniversary JP-XX Honey Butter - Wild West Guitars
New Sterling by Music Man 7-String Models JP70 – Woodsy's Music
