The Collaborative International Dictionary of English v.0.48:

Musette \Mu*sette"\, n. [F., dim. of OF. muse.]
   1. A small bagpipe formerly in use, having a soft and sweet
      tone.
      [1913 Webster]

   2. An air adapted to this instrument; also, a kind of rustic
      dance.
      [1913 Webster]

WordNet (r) 3.0 (2006):

musette
    n 1: a small bagpipe formerly popular in France [syn: musette,
         shepherd's pipe]