Listen to Serenade No. 11 in E-Flat Major, K. 375 III. Adagio online. Serenade No. 11 in E-Flat Major, K. 375 III. Adagio is an English language song and is sung by Background Instrumental Music Collective. Serenade No. 11 in E-Flat Major, K. 375 III. Adagio, 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 2:35. Download English songs online from JioSaavn.