LCD Soundsystem exist at the point of a Venn diagram where the loose grooves of disco bump up against the wiry spikiness of post-punk, and their songs hover between sharp-edged humor and heartfelt emotion. Their M.O. was note-perfect from the begininng and when they debuted in 2002 with the hilarious, hipster-spoofing single "Losing My Edge," it set up the band and their label DFA, as the coolest things around. Driven by the vision of James Murphy, the band built on the dance floor impact of the song, releasing timeless singles like "Daft Punk is Playing at My House" and "Drun...