Listen to Piano Sonata No. 8 in A Minor, K. 310: I. Allegro maestoso online. Piano Sonata No. 8 in A Minor, K. 310: I. Allegro maestoso is an English language song and is sung by Denis Matthews. Piano Sonata No. 8 in A Minor, K. 310: I. Allegro maestoso, from the album Classical Music to Make You Smarter, was released in the year 2014. The duration of the song is 4:07. Download English songs online from JioSaavn.