Op. 34: Prelude No. 21 in B flat major: Allegretto poco moderato

歌曲	Op. 34: Prelude No. 21 in B flat major: Allegretto poco moderato
歌手	Annett Busse
专辑	Shostakovich: 24 Preludes Op. 34 and Dances Of The Dolls Op. 91b