The world of Brazilian music is enormous, and pounding samba drums and sultry bossa nova singers are only the beginning. Northeastern Brazil swings with the carnival sound of frevo and the accordion-based party music called forró. The art-pop confluence of Tropicália upended Rio in the late '60s, while the manguebeat movement brought funk and hip-hop to Recife in the '90s. Superstar songwriters like Caetano Veloso, Gilberto Gil and Jorge Ben explore Brazil's big, warm and poetic soul, influencing the endless parade of innovative MPB artists in their wake.