The beat the song is built on is a 2-bar phrase, played through bars 64-65, 68-69 and 72-73, and 8 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 hi-hat, snare and kick, counted in thirty-second notes. On its own it scores 45 out of 100 -- a step up -- and the thing that decides that is how fine the subdivision is.
The whole song is 82 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 89 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 89, 103 and 118 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 2-bar phrase on hi-hat, snare and kick, in 4/4 at 118 BPM, counted in thirty-second notes. It is written out above, and it covers 17.8% of the bars the kit plays.
Bars 64-65, 68-69, 72-73 and 76-77, and 7 more places. The time is kept on the hi-hat to start with, and it changes 15 times over the song.
45 out of 100 on its own -- a step up. The song as a whole is 82 out of 100. Hard, and what makes it hard is the independence between the hands and the feet.