160 bars of 2/4 -- not four -- at 85 BPM, 3:46 of playing on crash, hi-hat, snare, kick and hi-hat foot.
The beat the song is built on is one bar, played through bars 2-159 -- 99.4% of every bar the kit plays. Learn that one and the song is very nearly finished.
160 bars across 2 sections: 158 keep time, 1 is a stop and 1 is silent. The longest unbroken stretch of time is bars 2-159.
85 BPM, in 2/4, with the time kept in sixteenth 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.
66 out of 100: demanding, mostly on the independence between the hands and the feet. The beat itself is 55 out of 100; the rest of the number is everything around it.
160 bars, about 3:46 at the written tempo. The course breaks it into 3 exercises over 2 sittings, about 17 minutes each.
crash, hi-hat, snare, kick and hi-hat foot. Nothing in the part asks for anything else.