In the movie RAY, Jamie Foxx (playing Ray Charles) was in a club sitting at the piano and was waiting on his backup singers to practice. He played a short excerpt from a famous classical piece. Then stopped and practiced with his group. I recognize the piece it sounds "dark" but I don`t know the name of it or who it`s by... BACH comes to mind but I`m not sure. Can anyone tell me what song it is??? I would really like to get my hands on the sheet music so I can play it.
Thank You in advance for helping.

JJ