His  Suite Bergamasque   
The right hand plays the lowest note on the piano at the end of a difficult piece by this composer that opens with a long trill on C-sharp and D-sharp and was inspired by a Watteau  (vah-TOH)  painting. Marcel Moyse added breath marks and possibly bar lines to a short piece by this composer that is often played from offstage. Tonal ambiguity between B-flat minor and D-flat major characterizes a piece by this man that is followed by a "Passepied"  (pahss-pee-AY) . This composer of  L'isle joyeuse   (leel jwah-YOOZ)  and the solo flute piece (*)   Syrinx  wrote a work whose first "symphonic sketch" progresses "from dawn to noon" and is followed by an allegro section subtitled "play of the waves". His  Suite Bergamasque   (bare-gah-MASK)  contains a piano piece that impressionistically depicts moonlight. For 10 points, name this French composer of  La mer  and Clair de lune .
The right hand plays the lowest note on the piano at the end of a difficult piece by this composer that opens with a long trill on C-sharp and D-sharp and was inspired by a Watteau  (vah-TOH)  painting.
Claude  Debussy  [or Achille-Claude  Debussy ]