I like the mood of this piece, wouldn't call it sad like Julien does.
Maybe a bit melancholic, but that suits me well :) a bit of a romantic
touch, a bit impressionist, a bit minimal.
Regarding the contest, the thing that comes to my mind is "An Anna
Blume" by Kurt Schwitters? I'm not that good in finding
quotes/references/associations in general, so I may be totally
wrong... but the piece somewhat fits the dada thing for me.