This is genius. 10 minutes of BBC archive of people dancing set to two pieces of contrasting music to show the way the soundtrack alters our perceptions of the same images.
http://www.bbc.co.uk/blogs/adamcurtis/2012/11/while_the_band_played_on.html

Found via http://www.scoop.it/t/hauntology

ps. Bring Back Retro-Futurism!