57 bars of 4/4 at 150 BPM, about 1:31 of playing, on hi-hat, snare and kick.
The beat the song is built on is one bar, played through bars 2-57 -- 98.2% of every bar the kit plays. Learn that one and the song is very nearly finished.
57 bars: 57 keep time. The longest unbroken stretch of time is bars 1-57.
150 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.
57 out of 100, a step up from a first song, and the work is in the independence between the hands and the feet. The beat itself is 46 out of 100; the rest of the number is everything around it.
57 bars, about 1:31 at the written tempo. The course breaks it into 3 exercises over 2 sittings, about 17 minutes each.
hi-hat, snare and kick. Three pieces and no more -- this one is playable on almost anything with a kick, a snare and something to keep time on.