The Metal For Life: Mastering Heavy Metal DVD is available now at the Guitar World Online Store for only $14.95. Strap on your ax for an extreme-metal boot camp, as Metal Mike Chlasciak helps you hone your chops to perfection! You'll learn how to traverse the fretboard with ever-essential minor pentatonic scale, incorporate minor scales into riffs and rhythm parts, build power-chord variations for maximum sonic effect and much more.

In the second edition of the Capo Crusader, Guitar World's Jimmy Brown shows you a nifty acoustic arrangement for the Who classic "Baby O' Riley."

The mechanics behind basic delay are simple: Play a note or chord into an audio-storage medium, then get that device to play that sound back to you — either once or multiple times — after whatever amount of time makes you happy. Of course, people have improved upon this simple formula, taking delay to new depths and heights, and often including an infinite assortment of types and combinations in one pedal.

For Tool, music and imagery are inextricably united—which is why the group is reissuing its 1992 debut EP, Opiate, in an extremely limited edition with new artwork and collectibles. Adam Jones explains.