Listen to Piano Concerto No. 4 in G Minor, Op. 40: II. Largo online. Piano Concerto No. 4 in G Minor, Op. 40: II. Largo is an Instrumental language song and is sung by Nikolai Petrov, Gennady Rozhdestvensky and Grand Symphony Orchestra of All-Union National Radio Service and Central Television Networks. Piano Concerto No. 4 in G Minor, Op. 40: II. Largo, from the album Rachmaninoff: Works for Piano and Orchestra, was released in the year 2013. The duration of the song is 6:54. Download Instrumental songs online from JioSaavn.