Urban activity: buses moving; keypads clicking; bikers cutting off cabs; window washers scaling up a half completed skyscraper; the distant wail of an ambulance siren, and its sudden pitch modulation as it zooms past, carrying a rush of wind and a trail of receipts, wrappers, or the rare leaf; the clang of the subway; cash registers opening, closing, opening; everyone is counting something: time, money, appointments, each other; the whistle of a traffic cop and hundreds of half-heard conversations in the street. The flurry of the city isn't something best described as "beautiful" so much as alive, unstoppable, cruel, and complex. American composer (and native New Yorker) Steve Reich has been writing the definitive city soundtrack for 40 years. From his early tape pieces "Come Out" and "It's Gonna Rain", to his now classic minimalist works-- though Reich would certainly scoff at the term-- Drumming and Music For 18 Musicians, to mor...