The beat the song is built on is one bar, played through bars 20-26, 54-60 and 92-98 -- 21% 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, hi-hat, snare and kick, counted in thirty-second notes. On its own it scores 80 out of 100 -- hard -- and the thing that decides that is the independence between the hands and the feet.
The whole song is 100 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 63 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 63, 76, 89, 102 and 115 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, hi-hat, snare and kick, in 4/4 at 115 BPM, counted in thirty-second notes. It is written out above, and it covers 21% of the bars the kit plays.
Bars 20-26, 54-60 and 92-98. The time is kept on the toms to start with, and it changes 20 times over the song.
80 out of 100 on its own -- hard. The song as a whole is 100 out of 100. Hard, and what makes it hard is how many notes a second it asks for.