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
theremins thereminvox thereminovox thermin theramin aetherphone teremin theremine thérémin termenvox thereminist etherophone theremin aetherophone therimin
theremin
WikipediaEntity
Theremin