Which guitar strings does John Mayer use? A Which guitar strings does John Mayer use? Strings made by Ernie Ball are used by John Mayer.Shop Ernie Ball 0 Comments for “Which guitar strings does John Mayer use?” Leave a Reply Cancel replyYour email address will not be published.CommentName* E-mail* Website Save my name, email, and website in this browser for the next time I comment.
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