Black in Buenos Aires : Oscar Aleman and the transnational history of swing -- Argentines into Latins : the jazz histories of Lalo Schifrin and Gato Barbieri -- Cosmopolitan tango : Astor Piazzolla at home and abroad -- The sound of Latin America : Sandro and the invention of balada -- Indigenous Argentina and revolutionary Latin America : Mercedes Sosa and the multiple meanings of folk music -- The music of globalization : Gustavo Santaolalla and the production of rock Latino.