The drum beat in deth metal

The beat the song is built on is one bar, played through bars 28-30, 32-34 and 36-41, and 8 more places -- 19.7% of every bar the kit plays. This one moves around more than most: the beat is where to start, not the whole job.

It is played on hi-hat, snare and kick, counted in sixteenth notes. On its own it scores 78 out of 100 -- demanding -- and the thing that decides that is how many notes a second it asks for.

The whole song is 70 out of 100, so the beat is most of what the song asks for. Get it clean and the rest follows.

A part this hard is not learned by playing it slowly and hoping. The room opens it on its simplest reduction -- the timekeeper alone, at 80 BPM -- and adds the notes back over 5 rungs, each with a tempo to reach and a gate to pass before the next.

1. Skeleton. Only the notes that land on a beat. The point is to feel where this bar stands.
2. Kick and snare, whole. The feet and the snare exactly as written, hi-hat pulled back to quarter notes. This is the part to know by heart.
3. Every note, flat. All the notes, but the hi-hat stays closed and nothing is ghosted or accented.
4. As written. Open hi-hat, ghost notes, accents and the crash where they belong.

Tempo goes 80, 97, 113, 130 and 146 BPM, and the gate at each one is 8 loops in a row with no wrong note and no wobble in the time.