In an office near the back of his 25,000-square-foot warehouse in São Paolo, Zero Freitas, 62, slipped into a chair, grabbed one of the LPs stacked on a table and examined its track list. He wore wire-rimmed glasses, khaki shorts and a Hard Rock Cafe T-shirt. Studying the song list, he appeared vaguely professorial. In truth, Freitas is a wealthy businessman who, since he was a child, has been unable to stop buying records. “I’ve gone to therapy for 40 years to try to explain this to myself,” he said.