Brazilian singer-songwriter Caetano Veloso is known only to world music fans here, but at home he's part Dylan, part Sondheim, part Borges, part Bowie, and all superstar. His new album, "Noites do Norte," is his first since the Grammy-winning "Livro." The new record examines the cultural legacy of slavery in Brazil. NPR's Rick Karr has a profile. (7:45) Veloso's recent recordings are available in the U.S. on the Nonesuch label.