172 bars at 160 BPM -- fast, and 4:20 of it without a break -- on crash, ride, hi-hat, snare, high tom, mid tom, floor tom and kick.
79 out of 100: demanding, mostly on how many notes a second it asks for.
hi-hat through bar 1, snare through bars 2-5, hi-hat through bars 6-33, toms through bars 34-39, hi-hat through bars 40-70 and toms through bars 71-76, and 7 more changes after that.
The beat the song is built on is one bar, played through bars 26-32, 40-42 and 44-46, and 17 more places -- 31% of every bar the kit plays. That is the spine of it; everything else is what happens around it.
26
1...........2...........3...........4...........
CC |x-----------------------------------------------|
HH |o-----o-----o-----o-----o-----o-----o-----o-----|
SD |x-----------x-----------x-----------x-----------|
BD |------x-----------x-----------x-----------x-----|9 fills to learn, played 30 times: bars 1, 9, 17, 25, 34, 35 and 24 more.
It cuts the song into 51 exercises -- the grooves, the fills, and the joins between sections, which is where players actually come off -- and puts them in the order a teacher would. Each one opens on a reduction you can already play and adds the notes back a rung at a time, with a tempo to reach and a gate to pass before the next.
160 BPM, in 4/4, with the time kept in thirty-second notes. At that speed the thirty-second notes are the whole difficulty, so the room will take it down to a quarter of it and climb back.
79 out of 100: demanding, mostly on how many notes a second it asks for. The beat itself is 74 out of 100; the rest of the number is everything around it.
172 bars, about 4:20 at the written tempo. The course breaks it into 51 exercises over 20 sittings, about 22 minutes each.
crash, ride, hi-hat, snare, high tom, mid tom, floor tom and kick. That is most of a full kit; the part moves around it rather than sitting in one place.
9 fills to learn, played 30 times: bars 1, 9, 17, 25, 34, 35 and 24 more.