The beat the song is built on is one bar, played through bars 3-10 and 30-37 -- 21.9% of every bar the kit plays. This one moves around more than most: the beat is where to start, not the whole job.
It is played on crash, hi-hat, snare and kick, counted in thirty-second notes. On its own it scores 52 out of 100 -- a step up -- and the thing that decides that is how fine the subdivision is.
The whole song is 54 out of 100, so the beat is most of what the song asks for. Get it clean and the rest follows.
The room opens this beat on its simplest reduction, at 72 BPM, and adds the notes back a rung at a time -- 4 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 72, 84, 97 and 110 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, hi-hat, snare and kick, in 4/4 at 110 BPM, counted in thirty-second notes. It is written out above, and it covers 21.9% of the bars the kit plays.
Bars 3-10 and 30-37. The time is kept on the hi-hat to start with, and it changes 10 times over the song.
52 out of 100 on its own -- a step up. The song as a whole is 54 out of 100, a step up from a first song, and the work is in how fine the subdivision is.