What was that strange instrument featured on American Horror Story: Coven? Myrtle (Francis Conroy) plays a strange ethereal instrument called the theremin on tonight's (January 8) epsiode of AHS.

The theremin is named after its inventor Leon Theremin. It is played as the musician moves his hand through an electrical field.

Thermin Music Videos

Theremin inventor Leon Theremin
 Don't Worry Be Happy
Over the Rainbow