sian, this is not to take away from Jim's response to your query about the tune that he uses for the song "In Christ There Is No East Or West, but fyi, if you can get YouTube, there's a number of a videos of a guitarist playing this song. Here's one of them:

http://www.youtube.com/watch?v=M0JGyMCWtfk
In Christ There Is No East Or West-Kottesque