The beat the song is built on is a 2-bar phrase, played through bars 2-16, 24 and 73-95 -- 26.4% of every bar the kit plays. That is the spine of it; everything else is what happens around it.
It is played on snare, floor tom, kick and hi-hat foot, counted in sixteenth notes. On its own it scores 30 out of 100 -- a fair first song -- and the thing that decides that is how many notes a second it asks for.
The whole song is 61 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 111 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 111, 130 and 148 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 snare, floor tom, kick and hi-hat foot, in 4/4 at 148 BPM, counted in sixteenth notes. It is written out above, and it covers 26.4% of the bars the kit plays.
Bars 2-16, 24 and 73-95. The time is kept on the snare to start with, and it changes 13 times over the song.
30 out of 100 on its own -- a fair first song. The song as a whole is 61 out of 100, a step up from a first song, and the work is in how many notes a second it asks for.