Fascinating BBC World Service Documentary which ran in February 2011 which shows how much modern music is traced to a five note pattern from Ghana. Worth a listen if you are interested in historical stuff.
http://www.bbc.co.uk/worldservice/docume...otes.shtml
I've tested this theory, I played a reaggae track, straight ahead jazz track, a Brazilian track by Black Banda Rio, and a Rock n Roll track from the 1950s and all had a distinctive five note pattern, it was like a revelation!