HIGHLY REFINED PIRATESThey may call this math rock but contrary to the attempt at pigeonholing it rarely gets boring. Which is usually a good sign that the usual musical designations don't really apply to Minus the Bear. The only question that comes up during a casual or earnest listen to their latest release, Highly Refined Pirates, is this: where would you place these guys if you had to? Then comes the rejoinder: who cares? Filled with complex guitar fingerwork, aural