Revered for their ineffably clean, precise playing, Tortoise couldn't help but mess with the formula slightly on their fourth album, Standards. And from the beginning of the first track it sounds like a major overhaul, with heavily over-miced drums and distorted guitars framing a pummeling groove from bassist Doug McCombs. On the second track "Eros," the phlegmatic synthesizer lines and clipped drums are more reminiscent of experimental electronica outfit Mouse on Mars than any fellow post-rock luminaries. When the band ...