hm...well how would they play half of ultraviolet? the song itself has a pretty distinctive middle point, but it all builds up for the "I remember" lines and so on...so i don't really think that would work..but maybe ultraviolet then a snippet, then the fly? that could work
I think the reason he mentions putting Ultraviolet and Lady With The Spinning Head together is because they were based on the same riff, right? And then wasn't the Lady With The Spinning Head guitar solo similar to The Fly? If U2 was Led Zeppelin I could see it happening.
well it seems like it could potentially work, but if we aren't talking about a snippet, then this just wouldn't seem possible...it would be a weird thing to do with a U2 song...i don't know!