The piano instrumental in All Watched Over by Machines of Loving Grace part 3?

Please don't watch this if under 18
It's 49 minutes and 30 seconds in

http://www.bbc.co.uk/iplayer/episode/b011x721/All_Watched_Over_by_Machines_of_Loving_Grace_The_Monkey_in_the_Machine_and_the_Machine_in_the_Monkey/