Listen to Prelude in E-Flat Major. molto allegro online. Prelude in E-Flat Major. molto allegro is an Unknown language song and is sung by Joanna Brzezinska. Prelude in E-Flat Major. molto allegro, from the album Chopin: Piano Pieces for Studying, was released in the year 2015. The duration of the song is 1:35. Download Unknown songs online from JioSaavn.