Gary Whelan, the drummer in the Happy Mondays, is a mate of mine. The last time we got together for lunch to talk about all things musical, we ended up down a fascinating rathole about how our music is tuned wrong. Instead of having our middle A tuned at 440 Hz, it really should be at 432 Hz. (This week’s Ongoing History of New Music details the “conspiracy” behind the reason for universal 440 Hz tuning.)
Gaz forwarded this video about music and math that, at the very least, gives some very good (and non-sinister) reasons middle A should be at 432 Hz.