The ondes Martenot or ondes musicales is an early electronic musical instrument. Early models were played only by moving a ring tied to a wire, creating "wavering" sounds similar to a theremin, but a
An ondes Martenot (seventh generation model, 1975)
Au ruban playing technique
Diffuseurs from left: Métallique, Palme, and cabinet containing both Principal and Résonance
Jonny Greenwood playing an ondes Martenot in 2010
The theremin is an electronic musical instrument controlled without physical contact by the performer. It is named after its inventor, Leon Theremin, who patented the device in 1928.
Ondes Martenot
…waves') is an early electronic musical instrument. Early models were played only by moving a ring tied to a wire, creating "wavering" sounds similar to a theremin, but a lateral-vibrato keyboard was soon added. Dynamics and timbre are adjusted using controls in a drawer on the instrument's left side. A player of…
A Moog Etherwave, assembled from a theremin kit: the loop antenna on the left controls the volume while the upright antenna controls the pitch.
Alexandra Stepanoff playing the theremin on NBC Radio
The components of a modern Moog theremin, in kit form
A robot playing the theremin