Alex Ross's blog The Rest is Noise is one of my favourite windows to the world of "avant-garde" classical music. I don't like everything he advocates there but it's always worth the time to read his articles or listen to a recommendation. This is a case in point, a very enjoyable 13 minutes.
PLAN OF THE CITY from Joshua Frankel on Vimeo.
A film by Joshua Frankel, the music is Judd Greenstein's "Change" performed by the NOW ensemble who are also the actors in the piece. I haven't tried listening to the music without the visuals so I can't say if it stands on its merits alone, but all together it's oddly compelling. Expand the image to full screen to see it in HD.