Tropicalismo was born out of tumult.

"A bunch of artists were getting together to basically play music and do art in a freer way," Sérgio Dias said. "There was a lot of struggle between the government and the militaries against the movement."

Consider America's "flower power" days of the 1960s: the Beatles, hippies, LSD. For Brazilians, the Tropicalismo movement, or Tropicália, was their answer to artistic oppression.

"It was not only music, but theater - a lot of things together - and that became a movement," said Diaz, vocalist and guitarist for the renowned Os Mutantes, a band formed with Arnaldo Baptista and Rita Lee during the movement in 1966.

Using innovative feedback and distortion and influenced by legends such as the late Lou Reed and The Mamas & the Papas, they blend their own unique psychedelic punk rock 'n' roll with Brazilian elements and themes.

Os Mutantes and Capsula, a similar trio out of Buenos Aires, will perform Nov. 20 at Dollhouse Studios on Industry Drive.

"We don't belong to any particular music scene," said Capsula bassist Coni Duchess. "We take different elements of sounds from different periods of time; we put it together. We're not like a proper psychedelic band, or a proper rock band. We sound like an original band. Nobody knows where to place us."

See a video from Capsula here.