The Klavierstück in F (Piece in F for keyboard), K. 33B, is a keyboard work written by Wolfgang Amadeus Mozart sometime during early October of 1766; its tempo marking is Allegro. It is 26 bars long, divided into two sections of 12 and 14 bars, each repeated.
The above text from the Wikipedia article "Piece in F for Keyboard, K. 33b (Mozart)" text is available under CC BY-SA 3.0.