Where should careful audio cleanup begin?

I joined a small listening club that compares ordinary headphones with simple spectrogram views, and we recently noticed a few unusual streaks in AI-generated music. We are not trying to diagnose every mark as a problem. Instead, we want to learn which visual details deserve another careful listen. I found <a href=https://sunofixer.top>this visual reference</a> while searching for explanations that do not promise certainty. It helped me frame the image as one clue rather than a verdict. I usually play a short section first, then inspect the same place on the display. The listening habit should stay curious. Each limited observation needs an audible reason. I compare individual passages before drawing conclusions. The process remains clear for new members. A short listen can prevent us from chasing an imaginary issue. We keep clear notes about what we actually heard. The group should remain welcoming. Our examples need to stay modest. Every tested observation remains safe to revisit. I keep that note clear for discussion. I would rather ask a question than claim certainty from one picture. How did you learn to connect what you hear with what you see without turning the display into a shortcut? Thank you for any clear explanations.