<a href="http://www.youtube.com/v/D9BOTXFCpQA" target="_blank">http://www.youtube.com/v/D9BOTXFCpQA</a>

Train passengers enjoy a Magical Piano in Chicago Union Station that responds in real time to it’s environment.

Most of the people interacting with the piano had no idea that it would automatically play, however, some people had heard about it so they knew what to expect. An entertaining video from Rob Bliss Creative who partnered with Amtrak to place the piano in Chicago Union Station.