Listen to Serenade for Strings in C Major, Op. 48: III. Elegia online. Serenade for Strings in C Major, Op. 48: III. Elegia is an English language song and is sung by Classical Study Music. Serenade for Strings in C Major, Op. 48: III. Elegia, from the album Classic Music for Study – Relaxing Music for Learning, Keep Focus & Study, Classical Artists Compilation, was released in the year 2017. The duration of the song is 2:56. Download English songs online from JioSaavn.