Listen to Haydn: Symphony No. 100 in G Major, Hob. I:100 "Military": II. Allegretto online. Haydn: Symphony No. 100 in G Major, Hob. I:100 "Military": II. Allegretto is an English language song and is sung by Bruno Walter and Columbia Symphony Orchestra. Haydn: Symphony No. 100 in G Major, Hob. I:100 "Military": II. Allegretto, from the album Great Symphonies, Vol. 1, was released in the year 2015. The duration of the song is 6:36. Download English songs online from JioSaavn.