The beat the song is built on is one bar, played through bars 40, 45-46 and 48-50, and 9 more places -- 22.6% 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 47 out of 100 -- a step up -- and the thing that decides that is how fine the subdivision is.
The whole song is 79 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 56 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 56, 66 and 75 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, ride, snare and kick, in 3/4 at 75 BPM, counted in thirty-second notes. It is written out above, and it covers 22.6% of the bars the kit plays.
Bars 40, 45-46, 48-50 and 56, and 8 more places. The time is kept on the silence to start with, and it changes 9 times over the song.
47 out of 100 on its own -- a step up. The song as a whole is 79 out of 100: demanding, mostly on how much of it falls off the beat.