Jonny Greenwood is known to millions as the guitarist in Radiohead, but he is enjoying a parallel life as the unlikely champion of an obscure instrument called the ondes martenot.
The device, invented in 1928 by French experimenter Martenot, has featured on the past three Radiohead albums and on Greenwood’s solo debut, Bodysong. It is also, he says, the source of “that swirly sound like a woman’s voice on the Star Trek theme”.