Rebelling against the Elvis-based, American-imported rock scene in late '60s Brazil, Caetano Veloso suffused lyrical Brazilian folksongs with fuzz guitar, avant-jazz, and electronic music-and in doing so blew apart the status quo of Brazilian culture. Caetano and the movement he catalyzed, tropicalia, urged an adoption of personal freedom in politics, music, and lifestyle. His "rabble-rousing," as the government saw it, would get Caetano and his comrade Gilberto Gil arrested and exiled to London to wait out the military dictatorship. His fame increasing by the year, Caetano focused on...