Dr Michael Dixon, director of the Natural History Museum and the Inheritance Tracks of singer Katie Melua

Sian Williams and Richard Coles with Dr Michael Dixon, the Director of the Natural History Museum, The Inheritance Tracks of singer Katie Melua, the sounds of a 20 ton Wurlitzer organ in a Chorleywood living room, a trip around the Powell-Cotton Museum in Kent, a ramble up and across Dunkery Beacon on Exmoor, the story of a woman who was abandoned in Hong Kong as a baby in the 1960's and sent to the UK for adoption, a couple with Albinism discussing their condition and JP Devlin talking to a grateful nation. Producer: Chris Wilson.