Wow!
There's a Moog version [1] of the Theremin [2]. And it's being demonstrated by Kydia Kavina [3], the protégé of Léon Theremin [4], inventor of the Theremin.
Way cool!
Just as cool is Lydia Kavina playing the theme to Dr. Who [5] on what looks to be a more traditional Theremin (along with some other very odd looking instruments).
[1] https://www.youtube.com/watch?v=8bakI0ITCqQ
[2] https://en.wikipedia.org/wiki/Theremin
[3] https://en.wikipedia.org/wiki/Lydia_Kavina
[4] https://en.wikipedia.org/wiki/L%C3%A9on_Theremin