Devised in 1920 from Russian research into proximity sensing, what eponymous musical instrument is controlled by the player's proximity to it?
Theremine Thereminovox Thereminvox Aetherphone Thereminist Etherophone Termenvox Thermin Theremin Theremins Theramin Thérémin Aetherophone Teremin Therimin
aetherphone theremin therimin teremin etherophone thereminist thérémin thereminvox theramin theremine aetherophone termenvox thereminovox thermin theremins
theremin
WikipediaEntity
Theremin