The beat the song is built on is one bar, played through bars 23-33, 35-53 and 55-82, and 6 more places -- 28.9% of every bar the kit plays. That is the spine of it; everything else is what happens around it.
It is played on crash, ride, snare and kick, counted in thirty-second notes. On its own it scores 33 out of 100 -- a fair first song -- and the thing that decides that is how fine the subdivision is.
The whole song is 50 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 44 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 44, 51 and 58 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 crash, ride, snare and kick, in 4/4 at 58 BPM, counted in thirty-second notes. It is written out above, and it covers 28.9% of the bars the kit plays.
Bars 23-33, 35-53, 55-82 and 89-90, and 5 more places. The time is kept on the silence to start with, and it changes 11 times over the song.
33 out of 100 on its own -- a fair first song. The song as a whole is 50 out of 100, a step up from a first song, and the work is in how fine the subdivision is.