Hi, this is my composition "3 variações sobre "cego". The music is a theme with variations and was composed on the northeastern folklore theme "O cego", which is a melody that was already used by M. Camargo Guarnieri in his "Sonatina nº3 for solo piano". The variations are modal, the first being in the Lydian mode, the second in the Dorian mode and the third in the Mixolydian mode with the fourth degree elevated.