Listen to Instruments of the Orchestra: Mozart: Horn Quintet in E-Flat Major, K. 407: III. Rondeau online. Instruments of the Orchestra: Mozart: Horn Quintet in E-Flat Major, K. 407: III. Rondeau is an English language song and is sung by Jeremy Siepmann. Instruments of the Orchestra: Mozart: Horn Quintet in E-Flat Major, K. 407: III. Rondeau, from the album Instruments of the Orchestra (The), was released in the year 2002. The duration of the song is 3:55. Download English songs online from JioSaavn.