ondes martenot
Concise Oxford English Dictionary © 2008 Oxford University Press:
ondes martenot /ɒ̃d ˈmɑːt(ə)nəʊ/
▶noun (pl. same) Music an electronic keyboard producing one note of variable pitch.
– origin 1950s: from Fr. ondes musicales, lit. ‘musical waves’ (the orig. name of the instrument) and the name of Maurice Martenot, its inventor.
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