Music of Philip Glass and Franz Schubert Philip Glass: Etude No 1 Philip Glass: Etude No 16 Schubert Impromptu No 1 (Op. 90)    Philip Glass: Etude No 2 Philip Glass: Etude No 8 Schubert Impromptu No 3 (Op. 90)    Philip Glass: Etude No 6 Philip Glass: Etude No 11 Schubert Impromptu No 4 (Op. 90)    with Vivien Schweitzer, piano