First of eight programmes in which the rambling, folk-singing raconteur and bon viveur Mike Harding introduces some of the strange, peculiar and exciting sounds he has encountered on his travels around the globe.
"From Sherpa women singing in the Everest valley to camels gargling in the shadow of the Great Pyramid - they're all there on the shelf of my studio," he says. This week he offers a history of travel. Producer Phil Whitaker