Listen to Piano Concerto, Nr. 23 in A-Major, KV 488: II. Allegro online. Piano Concerto, Nr. 23 in A-Major, KV 488: II. Allegro is an English language song and is sung by Clara Haskil, Paul Sacher and Wiener Symfoniker. Piano Concerto, Nr. 23 in A-Major, KV 488: II. Allegro, from the album Classical Digitally Remastered: Wolfgang Amadeus Mozart, was released in the year 2012. The duration of the song is 11:11. Download English songs online from JioSaavn.