The beat the song is built on is one bar, played through bars 1-3, 9-11 and 13-15, and 7 more places -- 21.1% 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, snare and kick, counted in thirty-second notes. On its own it scores 54 out of 100 -- a step up -- and the thing that decides that is how many notes a second it asks for.
The whole song is 75 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 208 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 208, 245, 283 and 320 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 320 BPM, counted in thirty-second notes. It is written out above, and it covers 21.1% of the bars the kit plays.
Bars 1-3, 9-11, 13-15 and 21-23, and 6 more places. The time is kept on the snare to start with, and it changes 23 times over the song.
54 out of 100 on its own -- a step up. The song as a whole is 75 out of 100: demanding, mostly on how many notes a second it asks for.