The Ear turns a running system's health into a chord: five live metrics each drive a voice, and the combined sensory dissonance rises audibly as the system degrades — a memory leak becomes a rising dissonance you hear before any single metric crosses its red-line.

the ear

A stethoscope for a running system. Every metric is a voice in a chord; dissonance is the health signal. Healthy resolves — a leak is a rising dissonance you hear before the red-line fires.
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resolved
resolvedunsettledtensedissonant
the chord — one voice per metric
eye vs ear

Per-metric red-lines (the eye)

All voices consonant — the system is resolved.