There's a point in every session where you stop hearing the song. Four hours in, your ear has adapted and you can no longer tell whether the kick hits too hard or not hard enough. An analyzer doesn't replace your judgement, but it gives you an objective reference exactly when you need one most.
Drop your mix in, pick the genre, and the tool splits the energy across seven bands — from sub-bass to air — and contrasts it with the usual range for that style. It all happens in your browser: the file is never sent to a server.
There's no universal correct curve. A reggaeton track carries far more energy below 100 Hz than a folk song, and lo-fi gives up the air above 10 kHz on purpose. Comparing your mix against a generic template leads you to fix things that weren't broken — which is why the analysis always runs against a specific style's range.
Tell you which track the problem comes from. The meter sees the sum; you have to find the culprit. That's exactly the skill you build by listening and deciding: recognising a resonance and where it sits in EQ Surgeon, identifying which instrument owns each band in Frequency Drop, and picking the right tool for a real problem in Mix Diagnosis.