Listen to Piano Concerto No. 3 in E-Flat Major, Op. 29: I. Moderato assai online. Piano Concerto No. 3 in E-Flat Major, Op. 29: I. Moderato assai is an English language song and is sung by Gabriel Tacchino. Piano Concerto No. 3 in E-Flat Major, Op. 29: I. Moderato assai, from the album Discover Saint-Saens, was released in the year 2014. The duration of the song is 13:29. Download English songs online from JioSaavn.