Listen to Symphony in B-Flat Major, P. 18: I. Grave - Allegro con spirito online. Symphony in B-Flat Major, P. 18: I. Grave - Allegro con spirito is an English language song and is sung by Slowakisches Kammerorchester. Symphony in B-Flat Major, P. 18: I. Grave - Allegro con spirito, from the album Haydn: Symphonies, was released in the year 2013. The duration of the song is 7:45. Download English songs online from JioSaavn.