Listen to Horn Concerto No. 3 in E-Flat Major, K. 447: I. Allegro online. Horn Concerto No. 3 in E-Flat Major, K. 447: I. Allegro is an English language song and is sung by Abel Pereira, Orquestra Metropolitana de Lisboa and Miguel Graça Moura. Horn Concerto No. 3 in E-Flat Major, K. 447: I. Allegro, from the album Mozart: Horn Concertos, was released in the year 2015. The duration of the song is 6:38. Download English songs online from JioSaavn.