144 bars at 155 BPM -- fast, and 3:43 of it without a break -- on crash, hi-hat, snare, mid tom, floor tom and kick.
72 out of 100: demanding, mostly on the independence between the hands and the feet.
toms through bars 3-25, snare through bars 26-30, toms through bars 31-36, kick and crashes through bars 37-46, snare through bars 47-62 and toms through bars 63-78, and 9 more changes after that.
The beat the song is built on is a 2-bar phrase, played through bars 47-62 and 113-128 -- 22.5% of every bar the kit plays. This one moves around more than most: the beat is where to start, not the whole job.
47 48
1...........2...........3...........4........... 1...........2...........3...........4...........
CC |x-------x-------x-------x-------x-------x-------|x-------x-------x-------x-------x-------x-------|
SD |x-----------------------x-----------------------|x-------x-------x-------x-------x-------x-------|
BD |x---x-------x-------x-------x-------x-------x---|----x-------x-------x-------x-------x-------x---|There are no fills to speak of: the part holds one beat the whole way through.
It cuts the song into 47 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.
155 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.
72 out of 100: demanding, mostly on the independence between the hands and the feet. The beat itself is 69 out of 100; the rest of the number is everything around it.
144 bars, about 3:43 at the written tempo. The course breaks it into 47 exercises over 16 sittings, about 25 minutes each.
crash, hi-hat, snare, mid tom, floor tom and kick. That is most of a full kit; the part moves around it rather than sitting in one place.