Who invented the theremin?
The theremin was invented in 1920 by Russian physicist Léon Theremin while he was researching sensors that detect motion.
Reference: Encyclopaedia Britannica
The theremin was invented in 1920 by Russian physicist Léon Theremin while he was researching sensors that detect motion.
The nyckelharpa is a Swedish keyed fiddle and is considered Sweden's national instrument.
Eric Sahlström helped revive the nyckelharpa.