The beat the song is built on is one bar, played through bars 50-54, 65-66 and 68-70, and 2 more places -- 17.3% 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 snare and kick, counted in thirty-second notes. On its own it scores 4 out of 100 -- straightforward -- and the thing that decides that is how fine the subdivision is.
The whole song is 74 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 68 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 68, 79 and 90 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 snare and kick, in 4/4 at 90 BPM, counted in thirty-second notes. It is written out above, and it covers 17.3% of the bars the kit plays.
Bars 50-54, 65-66, 68-70 and 74, and 1 more place. The time is kept on the hi-hat to start with, and it changes 9 times over the song.
4 out of 100 on its own -- straightforward. The song as a whole is 74 out of 100: demanding, mostly on the independence between the hands and the feet.