The beat the song is built on is one bar, played through bars 13-19, 21-27 and 36-46, and 4 more places -- 33.1% 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 45 out of 100 -- a step up -- and the thing that decides that is how many notes a second it asks for.
The whole song is 73 out of 100, so the beat is not the hard part: what costs you is everything around it, the joins and the fills.
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 101 BPM -- and adds the notes back over 3 rungs, each with a tempo to reach and a gate to pass before the next.
Tempo goes 101, 117 and 134 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 4/4 at 134 BPM, counted in sixteenth notes. It is written out above, and it covers 33.1% of the bars the kit plays.
Bars 13-19, 21-27, 36-46 and 48-50, and 3 more places. The time is kept on the silence to start with, and it changes 12 times over the song.
45 out of 100 on its own -- a step up. The song as a whole is 73 out of 100: demanding, mostly on the independence between the hands and the feet.