Too many mix CDs plow predictable paths, rounding up the usual suspects for perfectly beat-matched tedium. Not so with German jocks Acid Maria and Electric Indigo: these chicks take risks. Acid Maria starts her disc with Lawrence's melodic IDM/minimal techno confection and then deftly moves through compelling variants of house, disco, techno and electro pop. Tracks by Bobby Konders, Thomas Brinkmann, Plastikman and Ark make this disc indispensable. Electric Indigo's transitions aren't always smooth, but she compensates with a deep understanding of funk, dynamite selections (from Wassermann, Cristian Vogel and Superpitcher) and clever segues from pell-mell 4/4 techno to slower-paced electro and back again.