Three lenses on the same library
Mare organises the same archive three ways at once: Balanced (subject and category), Aesthetic (mood and colour), and Semantic (underlying theme), with a Recluster that re-runs them as the library grows. "Similar" isn't one thing, because two references can share a subject and still feel nothing alike, so three labelled lenses keep that legible where a single "similarity" dial would flatten it onto one axis that's wrong half the time.