The beat the song is built on is one bar, played through bars 78-84, 86-92 and 120-122, and 1 more place -- 16.3% 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 68 out of 100 -- demanding -- and the thing that decides that is how many notes a second it asks for.
The whole song is 85 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 4 rungs, each with a tempo to reach and a gate to pass before the next.
Tempo goes 137, 161, 186 and 210 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 2/4 at 210 BPM, counted in thirty-second notes. It is written out above, and it covers 16.3% of the bars the kit plays.
Bars 78-84, 86-92, 120-122 and 124-126. The time is kept on the snare to start with, and it changes 10 times over the song.
68 out of 100 on its own -- demanding. The song as a whole is 85 out of 100. Hard, and what makes it hard is how many notes a second it asks for.