The beat the song is built on is one bar, played through bars 20-22, 24 and 39, and 13 more places -- 28.6% of every bar the kit plays. That is the spine of it; everything else is what happens around it.
It is played on snare and kick, counted in thirty-second notes. On its own it scores 43 out of 100 -- a fair first song -- and the thing that decides that is how much of it falls off the beat.
The whole song is 60 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 85 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 85, 99 and 113 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 snare and kick, in 4/4 at 113 BPM, counted in thirty-second notes. It is written out above, and it covers 28.6% of the bars the kit plays.
Bars 20-22, 24, 39 and 41, and 12 more places. The time is kept on the hi-hat to start with, and it changes 7 times over the song.
43 out of 100 on its own -- a fair first song. The song as a whole is 60 out of 100, a step up from a first song, and the work is in how much of it falls off the beat.