That bizarre instrument that Pamelia Kursten is waving her hands around is called a theramin. Best known for providing eerie soundtrack music for scifi and horror movies, the theramin was the first electronic musical instrument. Invented in Russia by Dr. Leon Theremin in 1920 - the theremin inspired Robert Moog to create the Moog Synthesizer.

Created while Dr. Theremin was conducting research on proximity sensors for the Soviet government, the theremin creates sound using a pair of metal antennas that sense the position of the player's hands. Frequency (pitch) is controlled with one hand and amplitude (volume) with the other.

The theremin is described as being very easy to use but fiendishly difficult to master. Pamelia Kursten is one of the few people to master the instrument. Stick around to listen to her walking bass rendition in the middle of the piece.