Hate on Chicago (the band) all you want, but you’d be a fool to write off their first couple or few albums, particularly the first one, when the band was still known as Chicago Transit Authority. 1969 was the year, so the smoke from the crash and burn of the so-called hippie revolution was lingering in the near distance (at least that’s what the experts say). But the evolutionary energy was still percolating, such that a big fat double album from a big fat seven piece band could erupt from it all with equal parts power and precision. Just try to keep still for their take on I’m A Man.