I had a conversation last week with someone about Delia Derbyshire, the pioneering female electronic musician most famous for her stunning electronic realization of the Dr. Who theme song. But she did a lot more equally groundbreaking work many people haven't heard. Using tape loops, scientific oscillators, feedback, and other audio equipment, Derbyshire and her fellow musicians in the BBC Radiophonic Workshop created works that pre-dated modern techniques such as sampling by decades. Have a listen to some of her amazing work and keep in mind most of these are from the early 1960's. If that doesn't blow your mind, your mind is probably unblowable.