Who invented the theremin?
The theremin was invented in 1920 by Russian physicist Léon Theremin while he was researching sensors that detect motion.
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- What is a nyckelharpa?
“The nyckelharpa is a Swedish keyed fiddle and is considered Sweden's national instrument.”
Reference: Encyclopaedia Britannica
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How old is the nyckelharpa?
A nyckelharpa appears on a church gate on the Swedish island of Gotland dated to about 1350.
Who revived the nyckelharpa?
Eric Sahlström helped revive the nyckelharpa.