So. I know this is an extremely old question, but I've been thinking about it lately and it's been bugging the hell out of me. Anyway....

 

I know that the music the band uses to take the stage during the X&Y tour (or at least that they used at Coachella which is the only show I have actually heard) is Brian Eno's "An Ending (Ascent)." Does anyone know what the music is that they used on the Rush of Blood tour? I think it's also a Brian Eno track, but I'm not sure which.

i think it's something called All of Mankind, along those lines...not sure though

Do you have a tour book from the Rush tour? They have a music list at the back of what their DJ plays.

The song that was performed at the beginning of the rush of blood to the head tour was composed specifically for introducing coldplay onstage, I don't think it goes beyond what's heard. If you do want a copy of it, it's the intro to the live 2003 CD. I'm almost positive I heard this directly from the source, and I don't think the track has been released on its own.