The beat the song is built on is one bar, played through bars 17-19, 21-23 and 25-27, and 9 more places -- 19.7% 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 ride, snare and kick, counted in thirty-second notes. On its own it scores 84 out of 100 -- hard -- and the thing that decides that is how many notes a second it asks for.
The whole song is 93 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 119 BPM -- and adds the notes back over 5 rungs, each with a tempo to reach and a gate to pass before the next.
Tempo goes 119, 143, 167, 192 and 216 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 ride, snare and kick, in 4/4 at 216 BPM, counted in thirty-second notes. It is written out above, and it covers 19.7% of the bars the kit plays.
Bars 17-19, 21-23, 25-27 and 29-31, and 8 more places. The time is kept on the hi-hat to start with, and it changes 20 times over the song.
84 out of 100 on its own -- hard. The song as a whole is 93 out of 100. Hard, and what makes it hard is how many notes a second it asks for.