2 fills to learn, played 2 times across 104 bars. Two fills that share a rhythm and differ only in how they are spread round the toms are one fill here, learned once and orchestrated twice.
On hi-hat, snare and kick. 67 out of 100 -- demanding -- and what decides that is how many notes a second it asks for. In the song it lands on bar 85. The exercise loops the figure on its own first, and the one after it puts it back: one bar of rest to count yourself in, the figure, then the landing with the time still running. Getting out of a fill is the half most people never practise.
On snare and kick. 25 out of 100 -- a fair first song -- and what decides that is the independence between the hands and the feet.
A fill is rhythm before it is orchestration. The room plays the whole figure on the snare first, puts the feet under it second, and moves it round the toms last -- looped on its own, round and round, until the hands know it. Then it puts the fill back where it lives: a bar of rest to count in, the figure, and the downbeat it lands on, because landing square is the other half of the job.
PRACTISE THESE FILLS →2 distinct fills, played 2 times: bars 84 and 104.
The one at bar 84, at 67 out of 100. 104 bars of 4/4 at 137 BPM, about 3:02 of playing, on crash, hi-hat, snare and kick.