Schubert: 4 Impromptus, Op.90, D.899 - No.4 in A flat: Allegretto

歌曲	Schubert: 4 Impromptus, Op.90, D.899 - No.4 in A flat: Allegretto
歌手	Krystian Zimerman
专辑	4 Impromptus Op.142, D.935