Slipknot's Jim Root and Mick Thomson Talk Brutal New Album, '.5: The Gray Chapter'

This is an excerpt from the December 2014 issue of Guitar World. For the rest of this Slipknot story, plus features on Slash, Joe Bonamassa, Lenny Kravitz, Paul Gilbert, Motionless In White, Electric Wizard and more, including lessons, tabs and reviews of new gear from D'Angelico, Washburn, Boss, Morley, Lace Music and Carr Amps, check out the December 2014 issue at the Guitar World Online Store.

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Alan di Perna

In a career that spans five decades, Alan di Perna has written for pretty much every magazine in the world with the word “guitar” in its title, as well as other prestigious outlets such as Rolling Stone, Billboard, Creem, Player, Classic Rock, Musician, Future Music, Keyboard, grammy.com and reverb.com. He is author of Guitar Masters: Intimate Portraits, Green Day: The Ultimate Unauthorized History and co-author of Play It Loud: An Epic History of the Sound Style and Revolution of the Electric Guitar. The latter became the inspiration for the Metropolitan Museum of Art/Rock and Roll Hall of Fame exhibition “Play It Loud: Instruments of Rock and Roll.” As a professional guitarist/keyboardist/multi-instrumentalist, Alan has worked with recording artists Brianna Lea Pruett, Fawn Wood, Brenda McMorrow, Sat Kartar and Shox Lumania.