The beat the song is built on is one bar, played through bars 33-39, 41-47 and 57-59, and 4 more places -- 17.8% 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 and kick, counted in sixteenth notes. On its own it scores 46 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 75 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 137 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 137, 159 and 182 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 and kick, in 4/4 at 182 BPM, counted in sixteenth notes. It is written out above, and it covers 17.8% of the bars the kit plays.
Bars 33-39, 41-47, 57-59 and 61-63, and 3 more places. The time is kept on the toms to start with, and it changes 14 times over the song.
46 out of 100 on its own -- a step up. The song as a whole is 75 out of 100: demanding, mostly on the independence between the hands and the feet.