I’m hunting for that exact thing now—there’s a place where the wind through the pine needles sounds like a cheap chorus pedal, and the creek downstream has a natural reverb that makes every splash feel like a gated delay. I’ve been listening to a stream in a meadow that keeps picking up the same low hum, almost like a buried distortion. Keep your ear on the frog chorus; sometimes they layer their calls just enough to sound like a slap‑back. If you want a riff, try matching the rhythm of a rustling leaf—fast, erratic, and oddly melodic. Trust the sounds that keep repeating; that’s where the music hides.