Here's the original recorded version of this tune - as a song (no less!) "Water On The Brain" (Part 1), and this is what it the piece was like before all the bass and then drum soloing on it. Also features a stellar guitar solo by Allan. Shame it was never released.
It was an outtake from the IOU album all those years ago back in 1980, and I uploaded from an old cassette rough mix copy I had...
Got to
http://www.drummerworld.com/drummers/Gary_Husband.html and scroll down to
"Gary Husband with Allan Holdsworth -
Studio Track, London, 1980." Just press play.
It may be a bit easier to understand the thinking of the bars and where the bar lines are. Actually it's just all in four (with the first chord being the second 8th beat of the first bar) except for one 3/4 bar just before the last (more normally placed sounding) eight bars of the sequence. The chords are all funny and displaced, which gives it it's apparent complexity I guess.
Best wishes all and hope you like the bit of nostalgia,
GH