The beat the song is built on is one bar, played through bars 16-23, 25-31 and 33-39, and 2 more places -- 37.8% of every bar the kit plays. Learn that one and most of the song is already under your hands.
It is played on crash, ride, snare, mid tom, floor tom, kick and hi-hat foot, counted in sixteenth notes. On its own it scores 70 out of 100 -- demanding -- and the thing that decides that is how many notes a second it asks for.
The whole song is 71 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 65 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 65, 77, 88 and 100 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, mid tom, floor tom, kick and hi-hat foot, in 4/4 at 100 BPM, counted in sixteenth notes. It is written out above, and it covers 37.8% of the bars the kit plays.
Bars 16-23, 25-31, 33-39 and 68-74, and 1 more place. The time is kept on the silence to start with, and it changes 7 times over the song.
70 out of 100 on its own -- demanding. The song as a whole is 71 out of 100: demanding, mostly on the independence between the hands and the feet.