Artist and programmer Brian Foo isn't the first to think of the subway musically, but his approach is unique. Using the data from the 2011 census, he composed a song, Two Trains, that represents the changes in median income as the 2 train chugs along from Brooklyn through Manhattan and into the Bronx, lurching in and out of different economic zones.

The result is a moving audio portrait of one of the most economically disparate regions in the world. Read More