Listen to Concerto for Piano and Orchestra in G Major: Adagio assai online. Concerto for Piano and Orchestra in G Major: Adagio assai is an English language song and is sung by Benjamin Zander. Concerto for Piano and Orchestra in G Major: Adagio assai, from the album Benjamin Zander Conducts: Petrushka, was released in the year 2012. The duration of the song is 9:10. Download English songs online from JioSaavn.