The beat the song is built on is one bar, played through bars 34-48, 82-89 and 91-97, and 7 more places -- 28.6% 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 and kick, counted in sixteenth notes. On its own it scores 78 out of 100 -- demanding -- and the thing that decides that is the independence between the hands and the feet.
The whole song is 81 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 74 BPM -- and adds the notes back over 5 rungs, each with a tempo to reach and a gate to pass before the next.
Tempo goes 74, 89, 105, 120 and 135 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 and kick, in 3/4 at 135 BPM, counted in sixteenth notes. It is written out above, and it covers 28.6% of the bars the kit plays.
Bars 34-48, 82-89, 91-97 and 114-122, and 6 more places. The time is kept on the toms to start with, and it changes 13 times over the song.
78 out of 100 on its own -- demanding. The song as a whole is 81 out of 100. Hard, and what makes it hard is the independence between the hands and the feet.