Listen to Symphony, Nr. 40 in G-Minor, KV 550: I. Allegro Molto online. Symphony, Nr. 40 in G-Minor, KV 550: I. Allegro Molto is an English language song and is sung by Cleveland Orchestra and George Szell. Symphony, Nr. 40 in G-Minor, KV 550: I. Allegro Molto, from the album Classical Digitally Remastered: Wolfgang Amadeus Mozart, was released in the year 2012. The duration of the song is 8:13. Download English songs online from JioSaavn.