These 15 remixes of songs from Phoenix's last disc are all over the map. Animal Collective turn "Love Like a Sunset" into shimmering psychedelia; Passion Pit toss a couple of synths at "1901." In the hands of Chairlift, the sumptuous ballad "Fences" is dragged into the chill-out lounge. It's a fun, slightly gratuitous album, whose varied results underscore the strength of the source material: songs too well-built to be improved upon — or ruined.