Carl Maria von Weber wrote some music for a stage piece by Gozzi and
translated by Schiller called *Turandot, Princess of China* w/ an overture
and six numbers based upon an *air chinois* he found in Rousseau's
*Dictionnaire de la musique*.  I was told that either Weber or Rousseau
had copied what apparently was supposed to be an authentic Chinese musical
passage incorrectly.  Correctly copied or otherwise, many of us know one of
those themes better from Hindemith's Variations on that theme of Weber's.

Walter Meyer