Theremin. This article is about the instrument.
For the inventor, see Léon Theremin. The theremin (/ˈθɛrəmɪn/[1] THERR-ə-min; originally known as the ætherphone/etherphone, thereminophone[2] or termenvox/thereminvox), is an early electronic musical instrument controlled without physical contact by the thereminist (performer). It is named after the Westernized name of its Russian inventor, Léon Theremin, who patented the device in 1928. On July 20, 2013, a group of 272 theremin players (Matryomin ensemble) in Hamamatsu, Shizuoka, Japan, achieved a Guinness world record as the largest theremin ensemble. Theremin Kit Sales. Theremins for Every Budget!