A theremin is unique among musical instruments in that it is
performed without being touched by the operator. The musician
stands in front of the instrument and moves his or her hands in
the proximity of two metal antennas. The distance from one
antenna determines frequency (pitch), and the distance from the
other controls amplitude (volume). Most frequently, the right
hand controls the pitch and the left controls the volume,
although some performers reverse this arrangement. Additionally,
some theremins use a volume dial and have only one antenna.Via.
*Previously: Vintage boombox. *Buy Daft Punk concert t-shirts at
eBay.