Listen to Piano Concerto No. 23 in A Major, K. 488: I. Allegro online. Piano Concerto No. 23 in A Major, K. 488: I. Allegro is an English language song and is sung by St. Petersburg Orchestra Classic Music Studio, Alexander Titov and Veronika Reznikovskaya. Piano Concerto No. 23 in A Major, K. 488: I. Allegro, from the album The Greatest Hits: Wolfgang Amadeus Mozart, was released in the year 2015. The duration of the song is 11:20. Download English songs online from JioSaavn.