The beat the song is built on is a 2-bar phrase, played through bars 27-38, 49 and 51, and 16 more places -- 26.6% of every bar the kit plays. That is the spine of it; everything else is what happens around it.
It is played on crash, hi-hat, snare and kick, counted in thirty-second notes. On its own it scores 59 out of 100 -- a step up -- and the thing that decides that is the independence between the hands and the feet.
The whole song is 58 out of 100, so the beat is most of what the song asks for. Get it clean and the rest follows.
The room opens this beat on its simplest reduction, at 78 BPM, and adds the notes back a rung at a time -- 4 of them. Nothing is a matter of opinion: each rung has a tempo to reach and a gate to pass before the next one.
Tempo goes 78, 92, 106 and 120 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 and kick, in 4/4 at 120 BPM, counted in thirty-second notes. It is written out above, and it covers 26.6% of the bars the kit plays.
Bars 27-38, 49, 51 and 53, and 15 more places. The time is kept on the snare to start with, and it changes 18 times over the song.
59 out of 100 on its own -- a step up. The song as a whole is 58 out of 100, a step up from a first song, and the work is in the independence between the hands and the feet.