for piano. Andante KV 1a - Allegro KV 1b - Allegro KV 1c - Menuett KV 1d - Menuett KV 1e - Menuett KV 1f - Menuett KV 2 - Allegro KV 3 - Menuett KV 4 - Menuett KV 5 - Allegro KV 6/1 - Andante KV 6/2 - Menuett KV 6/3, I - Menuett KV 6/3, II - Menuett KV 7/3, I - Allegro KV 8/1 - Klavierstck KV 9a - Klavierstck KV 9bAt the age of four, Mozart astounded his father with his understanding of the piano. His first works were simple dance settings written when he was five, at which point his musical abilities were developing at a tremendous speed. The earliest pieces are recorded in the music book for Maria Anna Mozart, the so-called Nannerl-Notenbuch.