I have finally found the song I want. Unfortunately, it comes attached to the soundtrack of a film I've never seen.
Maybe one of these days I can get it then.
http://www.moviemusic.com/CD/cityoflostchildren.htmlEdit:
If any of you happens to have a copy of "The girl on the bridge" soundtrack, or "City of lost children" soundtrack, or just the Marianne Faithful song which is what I'm really after, can I borrow it? Alternativey, if you have a copy of the film, can I borrow that so I'll know if there's anything else on the soundtrack I'd like?