theremin (plural theremins)
An electronic musical instrument that generates sound of varying pitch and volume depending on the proximity of the musician’s hands to two antennae mounted on the instrument.
Leon Theremin's original designs are elegant, ingenious and effective. As electronics goes, the theremin is very simple. But there are so many subtleties hidden in the details of the design. It's like a great sonnet, or a painting, or a speech, that is perfectly done on more than one level. Robert Moog
After 51 years in the Soviet Union Theremin started travelling, first visiting France in June 1989 and then the United States in 1991, each time accompanied by his daughter Natalia. Source: Internet
At this time, Theremin worked closely with fellow Soviet émigré and theremin virtuoso Clara Rockmore (Clara Reisenberg as she was when they first met). Source: Internet
By 1947 Theremin had remarried, to Maria Guschina, his third wife, and they had two children: Lena and Natalia. Source: Internet
Albert Glinsky, “Theremin: Ether Music and Espionage”, Foreword by Robert Moog, - University of Illinois Press, 2000. Source: Internet
Her recent project "Nicht zu fassen" for theremin and accordion, together with Roman Yusipey, includes works by S.Gubaidulina, J.Cage, V.Poleva, as well as Kavina's compositions, it was performed in Germany and Ukraine. Source: Internet