Pink Martini, from Portland, Oregon, on their album Sympathique, open the song “Soledad” with a piano solo. It sounds Chopin-esque to me, and the song credits include Frederic Chopin; however, it doesn’t specify “excerpted from” or “inspired by”. I’ve tried flipping through some Chopin books, but haven’t stumbled on anything that looked likely.
Here can be found Amazon.com’s sample with part of it. If this actually is a Chopin piece, what is it?
It’s a passage from his Andante spianato and Grande Polonaise, op. 22.
Interestingly, when I got to that page, the color of the link to your song showed I had been there recently. I tried a couple of quick board searches, but I didn’t see it.