Watch FMovies. An old Brazilian musician, Rato Branco, seeks out the old masters of the 8-bass sanfona in the backlands of Bahia to recover the secrets and traditional touches of the Pé de Bode, as this sanfona is known in northeastern Brazil. The film recounts the friendship between the master Rato Branco and the great musicians of the sertão, revealing the musical memory of this region.