The beat the song is built on is a 2-bar phrase, played through bars 16-18, 20-22 and 37-39, and 3 more places -- 20.2% 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, ride, 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 72 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 69 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 69, 81 and 92 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 crash, ride, snare and kick, in 4/4 at 92 BPM, counted in thirty-second notes. It is written out above, and it covers 20.2% of the bars the kit plays.
Bars 16-18, 20-22, 37-39 and 41-43, and 2 more places. The time is kept on the kick and crashes to start with, and it changes 10 times over the song.
45 out of 100 on its own -- a step up. The song as a whole is 72 out of 100: demanding, mostly on the independence between the hands and the feet.