Listen to Serenade No 6 In D Major K 239 Allegro - Adagio - Allegro online. Serenade No 6 In D Major K 239 Allegro - Adagio - Allegro is an English language song and is sung by Chamber Armonie Orchestra. Serenade No 6 In D Major K 239 Allegro - Adagio - Allegro, from the album The Best of Mozart, was released in the year 2017. The duration of the song is 4:37. Download English songs online from JioSaavn.