Pierre Schaeffer - Etude aux chemins de fer, 1948

The first piece of "musique concrete," composed by Pierre Schaeffer in 1948 out of sounds produced by trains.

This is posted as a reference to a series of articles on the problems of composition posed by musique concrete. The article on Peirre Schaeffer can be found here:

Vidéo chopée @ http://www.youtube.com/user/apopcollapse