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Amazon.com: Martin Guitar OMJM John Mayer Acoustic-Electric Guitar with Hardshell Case, Spruce and Rosewood Construction, Gloss Finish, and 000-14 Fret : Musical Instruments
Ernie Ball - John Mayer uses Ernie Ball Earthwood phosphor bronze acoustic guitar strings to create his acoustic guitar tone. Do you? Join the legacy. ernieball.com #iplayslinky | Facebook
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