Listen to Nocturnes, Op. 27: No. 2 in D-Flat Major. Lento sostenuto online. Nocturnes, Op. 27: No. 2 in D-Flat Major. Lento sostenuto is an Instrumental language song and is sung by Abbey Simon. Nocturnes, Op. 27: No. 2 in D-Flat Major. Lento sostenuto, from the album 111 Piano Masterpieces, was released in the year 2010. The duration of the song is 5:36. Download Instrumental songs online from JioSaavn.