The beat the song is built on is a 2-bar phrase, played through bars 9-15, 17-24 and 37-44 -- 25.6% 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 36 out of 100 -- a fair first song -- and the thing that decides that is the speed of the hand keeping time.
The whole song is 56 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 119 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 119, 138 and 158 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 158 BPM, counted in sixteenth notes. It is written out above, and it covers 25.6% of the bars the kit plays.
Bars 9-15, 17-24 and 37-44. The time is kept on the silence to start with, and it changes 13 times over the song.
36 out of 100 on its own -- a fair first song. The song as a whole is 56 out of 100, a step up from a first song, and the work is in the independence between the hands and the feet.