What is the definition of Middle Sounds?

Ah, "Middle sounds" - the melodic middle notes that dance between the top and bottom of our sonic spectrum, often overshadowed by the more dramatic lows and soaring highs. These are the sounds that sit precariously in the middle of our auditory universe, making us question if we're just hearing ourselves babble or if we're actually auditioning for a middle-aged stand-up comedian.

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Now, here's an edgy example sentence using this term: "The middle sounds of the existential crisis were as haunting as a poorly timed stand-up routine from a forgotten era of comedy clubs."