19 bars of 4/4 at 120 BPM, about 0:38 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 1-15 -- 78.9% of every bar the kit plays. Learn that one and the song is very nearly finished.
19 bars: 19 keep time. The longest unbroken stretch of time is bars 1-19.
120 BPM, in 4/4, 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.
11 out of 100: straightforward, and the one thing to watch is how often it moves around the kit. The beat itself is 0 out of 100; the rest of the number is everything around it.
19 bars, about 0:38 at the written tempo. The course breaks it into 4 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.