Listen to Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": II. Adagio Un Poco Mosso online. Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": II. Adagio Un Poco Mosso is an English language song and is sung by South German Philharmonic Orchestra, Henry Adolph and Michael Rosengarten. Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": II. Adagio Un Poco Mosso, from the album 50 Winter Songs: Classical Collection, was released in the year 2015. The duration of the song is 7:38. Download English songs online from JioSaavn.