I don't know whether this is interesting to anyone, but I've worked out the signatures of this mindfuck of an intro: 548765754. It's played twice and proves what a bunch of lunatics these geniuses are. Chorus is a slight variation: 548675754. Nutters... Makes me wonder how time they spent together in front of a whiteboard :-)
Not sure if it had worked well on Frames, seeing as it already has the perfect flow. However, that is by no means criticism against the song, this tune is simply fantastic, and another proof of how amazing this band is, or was.