Conflict is the engine of the astonishing Brazilian protest music known as tropicalia; the Tropicalistas even had a term, antropofagia, for the clashing artistic influences that mirrored their struggle against Brazil’s authoritarian government. Here Jorge Ben turns samba into disco, Gilberto Gil combines traditional folk melodies with rock, and Os Mutantes fly into a horny banshee rage over a broken refrigerator. This set also includes a couple badass Argentine garage rockers for good measure.