Listen to Piano Sonata No. 2 in F Major, K. 280: I. Allegro assai online. Piano Sonata No. 2 in F Major, K. 280: I. Allegro assai is an English language song and is sung by Michael Endres. Piano Sonata No. 2 in F Major, K. 280: I. Allegro assai, from the album Mozart: My Favourite Piano Sonatas, was released in the year 2016. The duration of the song is 4:28. Download English songs online from JioSaavn.