Listen to Cello Concerto No. 2 in G Major, Op. 126: III. Allegretto online. Cello Concerto No. 2 in G Major, Op. 126: III. Allegretto is an Instrumental language song and is sung by Alexander Ramm, Alexander Sladkovsky, Tatarstan National Symphony Orchestra and Tatarstan National Symphony Orchestra. Cello Concerto No. 2 in G Major, Op. 126: III. Allegretto, from the album Shostakovich: Complete Concertos, was released in the year 2017. The duration of the song is 17:20. Download Instrumental songs online from JioSaavn.