Listen to Mozart: Horn Concerto No. 4 in E-Flat Major, K. 495: 3. Rondo. Allegro vivace online. Mozart: Horn Concerto No. 4 in E-Flat Major, K. 495: 3. Rondo. Allegro vivace is an English language song and is sung by Barry Tuckwell, London Symphony Orchestra and Peter Maag. Mozart: Horn Concerto No. 4 in E-Flat Major, K. 495: 3. Rondo. Allegro vivace, from the album Ultimate Classics, was released in the year 2006. The duration of the song is 3:56. Download English songs online from JioSaavn.