 The fifth movement, "Lamento", includes an "idée fixe", that he also utilized in "Automne à Varsovie" (from his Piano Études), his violin and piano concerti, and in various other chamber works.But the theme originates from his "Musica ricercata".The movement is related to the French baroque dance loure, that is usually in , as the movement alternates between and , suggesting an asymmetric division of .