The beat the song is built on is one bar, played through bars 97-107 and 109-119 -- 20.6% of every bar the kit plays. This one moves around more than most: the beat is where to start, not the whole job.
It is played on crash, ride, snare and kick, counted in thirty-second notes. On its own it scores 67 out of 100 -- demanding -- and the thing that decides that is how many notes a second it asks for.
The whole song is 74 out of 100, so the beat is most of what the song asks for. Get it clean and the rest follows.
A part this hard is not learned by playing it slowly and hoping. The room opens it on its simplest reduction -- the timekeeper alone, at 91 BPM -- and adds the notes back over 4 rungs, each with a tempo to reach and a gate to pass before the next.
Tempo goes 91, 107, 124 and 140 BPM, and the gate at each one is 8 loops in a row with no wrong note and no wobble in the time.
PRACTISE THIS BEAT →A one-bar groove on crash, ride, snare and kick, in 4/4 at 140 BPM, counted in thirty-second notes. It is written out above, and it covers 20.6% of the bars the kit plays.
Bars 97-107 and 109-119. The time is kept on the silence to start with, and it changes 9 times over the song.
67 out of 100 on its own -- demanding. The song as a whole is 74 out of 100: demanding, mostly on the independence between the hands and the feet.