Listen to 1812 Overture in E-Flat Major, Op.49: I. Largo - Allegro giusto online. 1812 Overture in E-Flat Major, Op.49: I. Largo - Allegro giusto is an English language song and is sung by Concertgebouw Orchestra. 1812 Overture in E-Flat Major, Op.49: I. Largo - Allegro giusto, from the album The Greatest Composer Vol. 4, Classical, was released in the year 2015. The duration of the song is 3:36. Download English songs online from JioSaavn.