Listen to Piano Concerto in E-Flat Major, Op. 73: Adagio un poco mosso (attacca) online. Piano Concerto in E-Flat Major, Op. 73: Adagio un poco mosso (attacca) is an English language song and is sung by Cologne Radio Symphony Orchestra, Günter Wand and Emil Gilels. Piano Concerto in E-Flat Major, Op. 73: Adagio un poco mosso (attacca), from the album "Simply" Beethoven (Famous Classical Music), was released in the year 2017. The duration of the song is 8:31. Download English songs online from JioSaavn.