The beat the song is built on is a 2-bar phrase, played through bars 18-21, 30-37 and 46-48, and 1 more place -- 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 crash, hi-hat, snare, high tom, mid tom, floor tom and kick, counted in thirty-second notes. On its own it scores 47 out of 100 -- a step up -- and the thing that decides that is how fine the subdivision is.
The whole song is 57 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 45 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 45, 53 and 60 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 crash, hi-hat, snare, high tom, mid tom, floor tom and kick, in 4/4 at 60 BPM, counted in thirty-second notes. It is written out above, and it covers 30.2% of the bars the kit plays.
Bars 18-21, 30-37, 46-48 and 50-53. The time is kept on the silence to start with, and it changes 1 time over the song.
47 out of 100 on its own -- a step up. The song as a whole is 57 out of 100, a step up from a first song, and the work is in how fine the subdivision is.