 These sets were composed across the decades of his career, and display the change in his style from uncomplicated youthful charm to a final enigmatic, but sometimes fiery introspection, by way of a turbulent period in his middle years.His other notable piano pieces, including shorter works, or collections composed or published as a set, are "Romances sans paroles", Ballade in F major, Mazurka in B major, "Thème et variations" in C major, and "Huit pièces brèves".For piano duet, Fauré composed the "Dolly Suite" and, together with his friend and former pupil André Messager, an exuberant parody of Wagner in the short suite "Souvenirs de Bayreuth".