The beat the song is built on is one bar, played through bars 29-32, 37-40 and 65-72, and 4 more places -- 23.1% 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, hi-hat, snare and kick, counted in thirty-second notes. On its own it scores 65 out of 100 -- demanding -- and the thing that decides that is how many notes a second it asks for.
The whole song is 94 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 98 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 98, 115, 133 and 150 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, hi-hat, snare and kick, in 4/4 at 150 BPM, counted in thirty-second notes. It is written out above, and it covers 23.1% of the bars the kit plays.
Bars 29-32, 37-40, 65-72 and 74-81, and 3 more places. The time is kept on the silence to start with, and it changes 20 times over the song.
65 out of 100 on its own -- demanding. The song as a whole is 94 out of 100. Hard, and what makes it hard is how many notes a second it asks for.