bagatelle

noun

• 1a thing of little importance; a very easy task:dealing with these boats was a mere bagatelle for the world’s oldest yacht club

• 2a game in which small balls are hit and then allowed to roll down a sloping board on which there are holes, each numbered with the score achieved if a ball goes into it, with pins acting as obstructions.

• 3a short, light piece of music, especially one for the piano.