The beat the song is built on is a 2-bar phrase, played through bars 17-36, 61-67 and 69-80 -- 25.5% of every bar the kit plays. That is the spine of it; everything else is what happens around it.
It is played on hi-hat, snare and kick, counted in sixteenth notes. On its own it scores 60 out of 100 -- a step up -- and the thing that decides that is the speed of the hand keeping time.
The whole song is 60 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 95 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 95, 112, 129 and 146 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 hi-hat, snare and kick, in 4/4 at 146 BPM, counted in sixteenth notes. It is written out above, and it covers 25.5% of the bars the kit plays.
Bars 17-36, 61-67 and 69-80. The time is kept on the silence to start with, and it changes 21 times over the song.
60 out of 100 on its own -- a step up. The song as a whole is 60 out of 100, a step up from a first song, and the work is in the independence between the hands and the feet.