The beat the song is built on is one bar, played through bars 15, 17 and 19, and 23 more places -- 30.2% 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, 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 independence between the hands and the feet.
The whole song is 42 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 46 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 46, 53 and 61 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 61 BPM, counted in sixteenth notes. It is written out above, and it covers 30.2% of the bars the kit plays.
Bars 15, 17, 19 and 21, and 22 more places. The time is kept on the kick and crashes to start with, and it changes 2 times over the song.
21 out of 100 on its own -- straightforward. The song as a whole is 42 out of 100 -- a fair first song -- with the independence between the hands and the feet the part that decides it.