1a kind of small bagpipe played with bellows, common in the French court in the 17th-18th centuries and in later folk music. a tune or piece of music imitating the sound of the musette, typically with a drone. a dance to a musette, especially in the 18th-century French court. a small simple variety of oboe, used chiefly in 19th-century France. 2 (also musette bag) US a small knapsack.