Penderecki invented a range of techniques for squeezing fresh sounds out of orthodox instruments, such as experimenting with vibrato, playing on the bridge or tailpiece of cellos and double basses and playing at dog-whistle pitch. This fired Greenwood with new excitement about the possibilities of the traditional orchestra, so he was thrilled when in 2004 he was recruited by Radio 3’s controller Roger Wright to be the BBC’s composer in residence, after Wright had heard some string quartet music he’d written for the movie Bodysong. As a result he was given generous chunks of time to rehearse with the BBC Concert Orchestra. “It’s amazing and unheard of, getting an orchestra to have a workshop with,” he says. His first BBC-sponsored composition in 2005 was Popcorn Superhet Receiver (its title refers to short-wave radio), inspired by Penderecki’s Threnody.