Listen to Triple Concerto in C Major, Op. 56: II. Largo online. Triple Concerto in C Major, Op. 56: II. Largo is an Unknown language song and is sung by St. Petersburg Sinfonietta. Triple Concerto in C Major, Op. 56: II. Largo, from the album Beethoven: Triple Concerto in C Major, Op. 56, was released in the year 2015. The duration of the song is 4:38. Download Unknown songs online from JioSaavn.