Listen to Nocturne No. 2 in E-Flat Major Op. 9 I. Allegretto online. Nocturne No. 2 in E-Flat Major Op. 9 I. Allegretto is an English language song and is sung by Background Instrumental Music Collective. Nocturne No. 2 in E-Flat Major Op. 9 I. Allegretto, from the album Classical Sleep Music – Soothing Instruments for Sleep, Sweet Nap, Healing Lullabies, Bedtime, Gentle Music to Bed, was released in the year 2017. The duration of the song is 3:06. Download English songs online from JioSaavn.