Listen to Symphony No. 4 in B-Flat Major, Op. 60: IV. Allegro ma non troppo online. Symphony No. 4 in B-Flat Major, Op. 60: IV. Allegro ma non troppo is an English language song and is sung by RSO Ljubljana and Anton Nanut. Symphony No. 4 in B-Flat Major, Op. 60: IV. Allegro ma non troppo, from the album Classical Beethoven 2, was released in the year 2017. The duration of the song is 7:07. Download English songs online from JioSaavn.