[marygam]

I always thought it was some freaky organ music! What do I know??? LOL! So what was it?

[CrazyIvan]

It is an electrotheremin. They were used to make some of the spooky sounds in old sci fi movies. I and a friend made one once. I could explain how it works, but you would be better off to do a search and get a better explanation than I could give.