The beat the song is built on is one bar, played through bars 1-16, 25-28 and 33-56, and 3 more places -- 34.2% 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 and snare, counted in sixteenth notes. On its own it scores 12 out of 100 -- straightforward -- and the thing that decides that is how often it moves around the kit.
The whole song is 47 out of 100, so the beat is not the hard part: what costs you is everything around it, the joins and the fills.
The room opens this beat on its simplest reduction, at 77 BPM, and adds the notes back a rung at a time -- 3 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 77, 89 and 102 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 hi-hat and snare, in 4/4 at 102 BPM, counted in sixteenth notes. It is written out above, and it covers 34.2% of the bars the kit plays.
Bars 1-16, 25-28, 33-56 and 64, and 2 more places.
12 out of 100 on its own -- straightforward. The song as a whole is 47 out of 100, a step up from a first song, and the work is in the independence between the hands and the feet.