Listen to Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": I. Allegro online. Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": I. Allegro is an English language song and is sung by Grober Berlin Rundfunk Orchester, Artur Rother and Walter Gieseking. Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": I. Allegro, from the album The Best of Classical Music - 50 Best Tracks (Remastered), was released in the year 2012. The duration of the song is 19:10. Download English songs online from JioSaavn.