"O Espelho" was composed in October 2009. In this piece I used only four pitch classes: C, Eb, F, Bb (035A). Also I used a technique called palindrome, where the second half of the song is the first played retrogradely. In instrumentation, instead of two violins, a viola and a cello, I made a quartet with two violins and two cellos, to further emphasize the symmetry. The choice of which pitch classes to use was also based on symmetry.
O Espelho