Listen to Cello Symphony, Op. 68: III. Adagio online. Cello Symphony, Op. 68: III. Adagio is an Instrumental language song and is sung by Mstislav Rostropovich, Benjamin Britten and Moscow Philharmonic Symphony Orchestra. Cello Symphony, Op. 68: III. Adagio, from the album Young Slava, was released in the year 2017. The duration of the song is 9:55. Download Instrumental songs online from JioSaavn.