Listen to Piano Concerto No. 20 in D Minor, K. 466: I. Allegro online. Piano Concerto No. 20 in D Minor, K. 466: I. Allegro is an English language song and is sung by Carmen Piazzini, Leningrad Soloists and Michael Gantvarg. Piano Concerto No. 20 in D Minor, K. 466: I. Allegro, from the album Essential Mozart, was released in the year 2017. The duration of the song is 13:30. Download English songs online from JioSaavn.