By Hannah Nepilova

Published: Monday, 18 December 2023 at 14:06 PM


You may have heard its ethereal sound on the 1951 science fiction classic film The Day the Earth Stood Still, scored by Bernard Hermann. Or in Miklós Rózsa’s 1945 score to the Alfred Hitchcock film Spellbound. Perhaps its otherworldly sound first reached you through the Beach Boys’ Good Vibrations, or the sound of those adorable extra-terrestrial creatures The Clangers. Any which way, the theremin is undoubtedly one of the most oddly atmospheric and weirdest instruments in the pantheon. But just what is a theremin, and does it produce those extraordinary sounds?

What is a theremin?

Invented in 1920, the theremin was the world’s electronic instrument, known for its contactless playing technique, its use in science fiction films and its eerie timbre that sounds like a descending alien spacecraft.

Who invented the theremin?

The instrument was invented by (and takes its name from) the Russian Soviet-era scientist Leon Theremin (1896-1993).

How did Theremin invent the theremin?

As a 23-year-old man working at the Physical Technical Institute in Petrograd, Theremin noticed that something strange happened when he connected audio circuits to an electrical device called an oscillator in a certain way. The oscillator produced an audible tone when he held his hands near it, and he could shift the tone just by waving his hands about.

As a classically-trained cellist, Theremin saw the oscillator’s potential as a musical instrument. He delivered the first concert with it soon after. Later he held a private demonstration for Lenin and Einstein, before coming to the USA, where he patented the device.

How do you play the theremin?

The theremin has two antennae – one horizontal and one vertical – each of which has an electromagnetic field surrounding it. You play it by moving your hand in front of the instrument, creating interference.

The closer your hand gets to the vertical antenna, the higher the pitch. The closer your hand gets to the horizontal one, the quieter the volume. However, the distance between the individual notes can vary according to the individual instrument.