9 bars of 4/4 at 125 BPM, about 0:17 of playing, on crash, hi-hat, snare and kick.
The beat the song is built on is one bar, played through bars 2-4 -- 33.3% of every bar the kit plays. That is the spine of it; everything else is what happens around it.
9 bars across 2 sections: 6 keep time and 2 are fills.
125 BPM, in 4/4, with the time kept in thirty-second notes. The room plays it at any tempo from a quarter of that up to the written one, against the record where the record can follow.
88 out of 100. Hard, and what makes it hard is the speed of the hand keeping time. The beat itself is 78 out of 100; the rest of the number is everything around it.
9 bars, about 0:17 at the written tempo. The course breaks it into 5 exercises over 3 sittings, about 20 minutes each.
crash, hi-hat, snare and kick. Nothing in the part asks for anything else.