Urban Contemporary

http://www.scribd.com/doc/21788347/Martin-Gardner-Time-Travel-and-Other-Mathematical-Bewilderments

In 1939, Heitor Villa-Lobos composed a piano piece by superimposing the New York skyline on a piece of graph paper.

Five years later he used a similar method to compose his sixth symphony, finding a melodic line in the mountain peaks of his native Brazil.