Listen to Waltz in E-Flat Major, WN 53: Sostenuto (Piano Lullaby Version) online. Waltz in E-Flat Major, WN 53: Sostenuto (Piano Lullaby Version) is an Unknown language song and is sung by Baby Yabbadoo Music. Waltz in E-Flat Major, WN 53: Sostenuto (Piano Lullaby Version), from the album Chopin for Baby: Essential Classical Music for Baby Sleep, was released in the year 2025. The duration of the song is 3:19. Download Unknown songs online from JioSaavn.