The beauty of Steve Reich's minimalist compositions can be found not in their repetition but in their evolution. Listening to the Kronos Quartet perform Different Trains, the listener quickly gets over the camp value of the conductor samples to discover an unfolding theme that harks back not only to bustling industrialism but also to the horror of the Nazi concentration-camp trains. Reich is a master of such subtle changes in sonics, and his impeccable timing turns simple phrases into musical tapestries. On Reich Remixed, some of dance music's more innovative artists pay homage to the composer in the way they know best: by sampling his works and remixing them into their own.