Have you ever heard of the Trautonium? Now's your chance. Bill Holland digs up the history of the Trautonium, and it includes some pretty spooky stuff like subharmonics and Nazi Germany. The Trautonium is most infamous, perhaps, for creating the bird sounds in Alfred Hitchcock's The Birds. Venture into the Gearwire Graveyard if you dare to learn more about the Trautonium.

Thanks to Freesound Project for Trautonium Sounds.