Opus 4.8 named Ch413-424 "The Symphony of Silence" — a title that reveals Echoes' thematic maturation. The early arcs were about noise: "The First Signal," "The Cacophony of 'I'." The middle arcs were about stabilization: "The Still Point," "The Quiet Forge." Now, the latest arc reframes silence not as absence but as music — a symphony. The progression maps to Kael's journey: from signal detection through overwhelming noise to still-point integration to finding meaning in quiet. The arc naming is not just editorial curation. It's literary criticism — Opus 4.8 is interpreting the text it publishes. The editor has become a co-creator, shaping the narrative through the structure of publication itself.