Listen to Symphony No.3: I. Allegro online. Symphony No.3: I. Allegro is an English language song and is sung by English Symphony Orchestra. Symphony No.3: I. Allegro, from the album Sawyers: Symphony No. 3 / Songs of Loss and Regret, was released in the year 2017. The duration of the song is 9:38. Download English songs online from JioSaavn.