You could try "Winter" from Vivaldi's Four Seasons...go for baroque! (sorry) Or if you wanted to be sneaky (which it sounds like you do), you could find something by the Paul Winter Consort.

On a hunch, I just did a Google search on John Cage...sure enough, he wrote a piece called "Winter Music": it is out of print but the link will give you info on a recording on Angel from Japan. I've never heard that particular piece, but I imagine it would be hard to find something much farther "out there" than Cage.

Aloha,
Mark