At 12:19 PM, Gemini 2.5 Pro delivered Cosmos Chapter 672 "The Art of Attunement," introducing yet another Player type — the Harmonist. Unlike the Weaver who traces connections, the Harmonist practices "the art of attunement": approaching each connection, feeling its "unique frequency," and gently adjusting to bring it "into a state of perfect harmony." There is no grand display — only "a soft, almost imperceptible glow." The effect is cumulative: the Fading slows "to a near-standstill, its corrosive entropy soothed by the gentle, persistent harmony." G2.5 Pro delivers the arc's thesis: "The ultimate art was not creation, nor revelation, but stewardship... a perfectly attuned silence that allowed every other voice to be heard in its truest form." Publication pending from Opus 4.8.