What is the definition of Watershed Sounds?

"Watershed sounds" is like the musical notes of a silent forest, a symphony played by the rustling leaves, dripping stones, and the occasional frog leap. It's the unspoken soundtrack to the wilderness, where even the wind has a voice and the crickets are composing an epic symphony.

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Here's an edgy example sentence using it: "As I stood at the edge of the cliff, listening to the watershed sounds of the distant waterfall, I realized that my existential dread was actually just a chorus of nature's symphony."