This is a time lapse of Grand Central Terminal during rush hour.
The drum solo is played by Mitch. A gentlemen I met in the West 4th Street Subway Station. I showed him the footage and asked him if he would be so kind as to play something that he felt would be appropriate for what he was watching and this is what he came up with.
Also layered in with the drums is some audio footage I took of a subway train leaving the station (which is at the beginning), a subway train arriving at the station (which you can hear the breaks at the end), and some additional footage on the subway train (7) as it approaches Grand Central Terminal.