The beat the song is built on is one bar, played through bars 17-22, 25-30 and 33, and 25 more places -- 33.1% of every bar the kit plays. That is the spine of it; everything else is what happens around it.
It is played on crash, snare and kick, counted in thirty-second notes. On its own it scores 27 out of 100 -- a fair first song -- and the thing that decides that is how many notes a second it asks for.
The whole song is 67 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 173 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 173, 202 and 231 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, snare and kick, in 4/4 at 231 BPM, counted in thirty-second notes. It is written out above, and it covers 33.1% of the bars the kit plays.
Bars 17-22, 25-30, 33 and 37, and 24 more places. The time is kept on the kick and crashes to start with, and it changes 25 times over the song.
27 out of 100 on its own -- a fair first song. The song as a whole is 67 out of 100: demanding, mostly on how many notes a second it asks for.