The beat the song is built on is a 2-bar phrase, played through bars 41-47, 65-71 and 73-78, and 6 more places -- 16.4% 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, kick and hi-hat foot, counted in sixteenth notes. On its own it scores 39 out of 100 -- a fair first song -- and the thing that decides that is the independence between the hands and the feet.
The whole song is 78 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 150 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 150, 175 and 200 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, hi-hat, snare, kick and hi-hat foot, in 4/4 at 200 BPM, counted in sixteenth notes. It is written out above, and it covers 16.4% of the bars the kit plays.
Bars 41-47, 65-71, 73-78 and 129, and 5 more places. The time is kept on the hi-hat to start with, and it changes 14 times over the song.
39 out of 100 on its own -- a fair first song. The song as a whole is 78 out of 100: demanding, mostly on how many notes a second it asks for.