Anyone with enough gigabytes on his hard drive and a ProTools program can create studio mash-ups, but not everyone can cut and paste like Richard "Aphex Twin" James. Although his work isn’t always easy on the ear, he’s consistently been among techno’s most innovative and adventuresome auteurs.

On his latest, he delivers two sides of Aphex Twin. Disc one features James in symphonic mode, mixing it up with the likes of Nobukazu Takemura, Seefeel, and Saint Etienne. He’s adept at morphing familiar material into something savage and strange, and his take on Philip Glass’s version of David Bowie’s "Heroes" is harrowingly Teutonic. In his hands, Gavin Bryars’s "Raising the Titanic" gets pushed along by massive drums and aches with even more pain and desperation than the original did. Disc two displays the glitchier and more difficult side of James, all clangs and bangs and buzzing sounds. Here he deconstructs Curve’s "Falling Free," Nine Inch Nails’ "At the Heart of it All," and Wagon Christ’s "Spotlight." Thrown in to sweeten the pot are two fascinating and previously unreleased Aphex tunes, "Windowlicker (Acid Edit)" and "SAW2 CD1 TRK2 (Original Mix)." No matter how disparate the sources are, James’s genius is that he can click through a Rubik’s Cube of permutations and still make it all cohere.