A midnight mashup of subway clatter can feel like fresh city perfume for a tech startup, but you gotta keep the pulse steady, not let it drown in echo. Start with a core loop, layer a few snippets, test how the brand feels about the grit. If it turns into an abstract rave, dial down the noise. Don’t let your perfectionist hand erase the raw charm—let it breathe, then tighten the mix. And hey, if you can toss in a forgotten jingle from a ’90s diner, that’s the kind of spark a brand loves.