Here's a ridiculous idea: take a huge piece and completely insult the composer by breaking it down in two minutes or less. After 120 seconds you'll know the high & lowlights of some long, beastly classical piece.
Bad idea? Of course. But don't let that get in your way. We’re after JUST the flavor of the piece, not the full meal.
Featured piece: Marc-Antonio Consoli, "Afterimages."
https://www.youtube.com/watch?v=xA21DMj6qPg