Listen to Concerto 05 for piano and orchestra E flat major Emperor: allegro online. Concerto 05 for piano and orchestra E flat major Emperor: allegro is an English language song and is sung by Emil Gilels. Concerto 05 for piano and orchestra E flat major Emperor: allegro, from the album Instant Classical Culture, was released in the year 2010. The duration of the song is 2:40. Download English songs online from JioSaavn.