I Break Horses, a new Swedish duo that must take its name from a track by indie icon songwriter Bill Callahan, gets its biggest song, "Hearts," remixed by The Chemical Brothers' Tom Rowlands here. Propulsive, organ-heavy walls of distortion define the original, and Rowlands ups the ante by bringing more depth out of the song's sonics, changing its polyrhythms and highlighting singer Maria Lindén's angelic voice. Both the original and RAR mix are a must for fans of M83 or My Bloody Valentine.