Listen to Serenade for String Orchestra in C Major, Op. 48: III. Elegia. Larghetto elegiaco online. Serenade for String Orchestra in C Major, Op. 48: III. Elegia. Larghetto elegiaco is an English language song and is sung by Moscow Chamber Orchestra and Mikhail Terian. Serenade for String Orchestra in C Major, Op. 48: III. Elegia. Larghetto elegiaco, from the album Classical Tchaikovsky 2, was released in the year 2017. The duration of the song is 9:18. Download English songs online from JioSaavn.