 Documentary about amazing brazilian musician Rogério Duprat, main orchestrator of Tropicália, his rehearsals with Gal Costa, Os Mutantes, Gilberto Gil and Caetano Veloso. There s also the first performance of his 1958 "5 Pieces for a Solo Cello" and pieces of the only recording of "Organismo", serial work inspired by a Décio Pignatari s poem.