43 bars of 3/4 -- not four -- at 157 BPM, 0:49 of playing on crash, ride, snare and kick.
The beat the song is built on is one bar, played through bars 2, 4-19 and 21, and 5 more places -- 79.1% of every bar the kit plays. Learn that one and the song is very nearly finished.
43 bars: 40 keep time and 3 are stops. The longest unbroken stretch of time is bars 1-19.
157 BPM, in 3/4, with the time kept in sixteenth notes. At that speed the sixteenth notes are the whole difficulty, so the room will take it down to a quarter of it and climb back.
48 out of 100, a step up from a first song, and the work is in how many notes a second it asks for. The beat itself is 30 out of 100; the rest of the number is everything around it.
43 bars, about 0:49 at the written tempo. The course breaks it into 4 exercises over 2 sittings, about 21 minutes each.
crash, ride, snare and kick. Nothing in the part asks for anything else.