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Presented by Lawrence Pollard.
Imogen Heap is a Grammy winning British multi-instrumentalist and composer who has spent six weeks in China creating a musical piece from sounds around her; leaves rustling, birds tweeting, doors slamming. She tells us how it came about.
(Image: Imogen Heap performs on stage during day three of the Bluesfest Music Festival at Tyagarah Tea Tree Farm on 23 April 2011 in Byron Bay, Australia. Credit: Photo by Mark Metcalfe/Getty Images)