The Tape Loop Chaos Behind Pink Floyd's 'Several Species of Small Furry Animals'

Roger Waters locked himself in a studio with a reel‑to‑reel tape machine and a single microphone. The goal wasn’t music in any traditional sense—it was to create a sound collage that would eventually become a 4‑minute freak‑out on Ummagumma. He made all the noises himself: clicks, gurgles, screeches, bird‑like chirps, and sped‑up gibberish. Then he cut those sounds into short loops, played them back at different tape speeds, and layered them one on top of another until the result was a dense, unrecognizable swarm.

The process was entirely manual. Waters would record a small section of vocal noise, physically cut the tape with a razor blade, splice the ends into a loop, and run it through the machine. He varied the speed of the tape deck to shift pitch