channel 4 or more 4 promo

[CARNTSPELL]

usually after midnight i watch the re run of countdown on the more 4 channel. during the break, there is an advert to watch more 4 documentaries. the song in the background is a great song. i just cant find out who it is, its a leonard cohen/ u2/ one type song and its driving me round the bend trying to get the title.