In this orchestra, a woman plays an instrument called a theremin: it is a quantum instrument

In this orchestra, a woman plays an instrument called a theremin: it is a quantum instrument played only with the energy of the hands, an instrument that forms a magnetic field and is played untouched. Only three countries in the world have music schools that teach theremin: Russia, Japan and Ireland. The theremin was invented by Leon Theremin, a Russian who introduced it to Lenin in 1920.