The beat the song is built on is one bar, played through bars 3, 5 and 7, and 32 more places -- 30.4% 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 21 out of 100 -- straightforward -- and the thing that decides that is the speed of the hand keeping time.
The whole song is 39 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 84 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 84, 98 and 112 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, snare and kick, in 4/4 at 112 BPM, counted in sixteenth notes. It is written out above, and it covers 30.4% of the bars the kit plays.
Bars 3, 5, 7 and 9, and 31 more places. The time is kept on the silence to start with, and it changes 6 times over the song.
21 out of 100 on its own -- straightforward. The song as a whole is 39 out of 100 -- a fair first song -- with the independence between the hands and the feet the part that decides it.