An 8-bar drum loop at a bpm of 128. The loop contains a kick drum tuned to f0, a snare drum tuned to f2, an untuned hi-hat, and an untuned ride cymbal (as well as chopped delay and reverb effects).
I put water on the frame drum and hit it several times to get a flat, rattly bass sound. Use my sound so you don't have to abuse your own drums. Recorded on an old ev pl-5.