[vjaswal]

I don't recall Maple Leaf Rag in the movie, but Solace and the Entertainer by Joplin are there.

Solace in particular is magnificent.

https://www.youtube.com/watch?v=qr2n2PnaC2Y

https://www.youtube.com/watch?v=vsFGcPujqKE

[Hunpeter]

Some people might also know Solace from BioShock: Infinite.

[robertlagrant]

Yes - you're right. The Entertainer.