The beat the song is built on is a 2-bar phrase, played through bars 11-13, 15-16 and 19-21, and 13 more places -- 19.3% 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 crash, snare and kick, counted in thirty-second notes. On its own it scores 39 out of 100 -- a fair first song -- and the thing that decides that is how many notes a second it asks for.
The whole song is 68 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 180 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 180, 210 and 240 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, snare and kick, in 4/4 at 240 BPM, counted in thirty-second notes. It is written out above, and it covers 19.3% of the bars the kit plays.
Bars 11-13, 15-16, 19-21 and 23-24, and 12 more places. The time is kept on the snare to start with, and it changes 13 times over the song.
39 out of 100 on its own -- a fair first song. The song as a whole is 68 out of 100: demanding, mostly on how many notes a second it asks for.