Listen to Waltzes, Op. 39: No. 15 in A-Flat Major online. Waltzes, Op. 39: No. 15 in A-Flat Major is an Instrumental language song and is sung by Walter Klien. Waltzes, Op. 39: No. 15 in A-Flat Major, from the album 111 Piano Masterpieces, was released in the year 2010. The duration of the song is 1:37. Download Instrumental songs online from JioSaavn.