It's one of the questions artists get asked most often: how did you create such-and-such a song/painting/play/etc. Lots of them prefer not to talk about it, but Imogen Heap leads us on a tour, both literally and figuratively, in explaining the origins and process that produced a new song in connection with a film about trekking across Bhutan. Enjoy this two-part video (the second part was just released today), then head to the film's Kickstarter page.