Kraftwerk: We Are The Robots (Thursday, 22nd November, 11.30 a.m., BBC Radio 4)

"Ralf Hutter and Florian Schneider are the nerdy brains behind the Dusseldorf band Kraftwerk - the name means power station. They would noodle away for hours on their electronic keyboards, producing hypnotic, repetitive sounds that went down a storm back in the 1970s. Marc Riley tells the oddball story of the reclusive techno superstars, finds out what the Krafters are doing now and plays mercifully little of their music."