Given his legacy as the key songwriter and conceptualist for Pink Floyd, one of the most theatrical bands in rock history, fans could expect that Roger Waters' show at the First Midwest Bank Amphitheatre on Friday would be a visual tour de force. Considering his infamous perfectionism, it was a given, too, that the sound and musicianship would be top-notch, especially since half of the set would be devoted to the 1973 audiophile masterpiece, "The Dark Side of the Moon." What came as a surprise was that Waters' three-hour performance in Tinley Park packed such an emotional wallop in the...