The beat the song is built on is a 2-bar phrase, played through bars 76-78, 80-82 and 84-86, and 5 more places -- 15.5% 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 sixteenth notes. On its own it scores 58 out of 100 -- a step up -- and the thing that decides that is the independence between the hands and the feet.
The whole song is 70 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 88 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 88, 104, 119 and 135 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 135 BPM, counted in sixteenth notes. It is written out above, and it covers 15.5% of the bars the kit plays.
Bars 76-78, 80-82, 84-86 and 88-90, and 4 more places. The time is kept on the silence to start with, and it changes 23 times over the song.
58 out of 100 on its own -- a step up. The song as a whole is 70 out of 100: demanding, mostly on the independence between the hands and the feet.