The Klavierstück in F, K. 33B, is a keyboard work written by Wolfgang Amadeus Mozart sometime during early October 1766; its tempo marking is Allegro. It is 26 bars long, divided into two sections of 12 and 14 bars, each repeated.
Mae'r testun uchod ar gael o dan drwydded y CC BY-SA 3.0. Mae'n defnyddio deunydd o erthygl Wicipedia "Piece in F for Keyboard, K. 33b (Mozart)".