12 bars of 3/4 -- not four -- at 88 BPM, 0:29 of playing on crash, ride, snare, high tom, mid tom and kick.
12 bars: 12 keep time. The longest unbroken stretch of time is bars 1-12.
88 BPM, in 3/4, with the time kept in thirty-second 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.
100 out of 100. Hard, and what makes it hard is how many notes a second it asks for. The beat itself is 91 out of 100; the rest of the number is everything around it.
12 bars, about 0:29 at the written tempo. The course breaks it into 3 exercises over 2 sittings, about 20 minutes each.
crash, ride, snare, high tom, mid tom and kick. That is most of a full kit; the part moves around it rather than sitting in one place.