Prolific musician and writer Jeff Tweedy (of Wilco and Uncle Tupelo) joins Andy Richter to discuss their shared love for naps, the simple genius of “Smoke on the Water,” the bigotry of the “disco sucks” movement, obssessing over books and music, faking it until you make it, and his latest book, “World Within a Song: Music That Changed My Life and Life That Changed My Music.”

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