The beat the song is built on is one bar, played through bars 5-7, 9-11 and 21-23, and 16 more places -- 34.5% of every bar the kit plays. That is the spine of it; everything else is what happens around it.
It is played on hi-hat, snare, mid tom, floor tom and kick, counted in sixteenth notes. On its own it scores 66 out of 100 -- demanding -- and the thing that decides that is how many notes a second it asks for.
The whole song is 70 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 134 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 134, 158, 182 and 206 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 hi-hat, snare, mid tom, floor tom and kick, in 4/4 at 206 BPM, counted in sixteenth notes. It is written out above, and it covers 34.5% of the bars the kit plays.
Bars 5-7, 9-11, 21-23 and 41-43, and 15 more places. The time is kept on the silence to start with, and it changes 8 times over the song.
66 out of 100 on its own -- demanding. The song as a whole is 70 out of 100: demanding, mostly on the independence between the hands and the feet.