123 bars of 2/4 -- not four -- at 56 BPM, 4:25 of playing on ride, snare, kick and hi-hat foot.
The beat the song is built on is one bar, played through bars 2-122 -- 98.4% of every bar the kit plays. Learn that one and the song is very nearly finished.
123 bars: 123 keep time. The longest unbroken stretch of time is bars 1-123.
56 BPM, in 2/4, with the time kept in sixteenth notes. Slow enough to hear every mistake, which is why the room lets you sit at the written tempo rather than under it.
25 out of 100 -- a fair first song -- with the independence between the hands and the feet the part that decides it. The beat itself is 15 out of 100; the rest of the number is everything around it.
123 bars, about 4:25 at the written tempo. The course takes it in a single sitting of 3 exercises.
ride, snare, kick and hi-hat foot. Nothing in the part asks for anything else.