Metabolism: song as substrate, ecology grown from the track

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A new top-level section building the metabolism concept: the track
supplies the food field, event impulses and per-section laws; the seed
picks the species (a rule set, not a parameter vector). Same song + seed
=> bit-identical frames; different songs => different worlds.

- analysis: single FFT pass -> per-frame feature table; score (onsets
  folded into world geometry via voice ring + pitch-class sector), wells
  (food placed by the harmony), graph (band correlations -> interaction
  matrix), laws (per-section regimes)
- sim: typed-array world, 3 castes (builder/orbit, forager/commute,
  spark/orbit-wide) with causality rings, persistence trails,
  consequence field; fully deterministic
- lens: software framebuffer renderer (PNG in node, ImageData in
  browser) + event-reactive camera (cuts on activity change, alternating
  shot sizes, drift-and-push)
- metrics: coupling x residual fitness (not per-frame descriptors) plus
  a grown-structure fingerprint; report + strip tools; 15 tests green
- DESIGN.md captures the concept, invariants and build order

3 reference test signals (drone/runner/dusk) grow measurably distinct
worlds while seeds of one song stay in the same biome.

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Dejvino

2026-10-24 08:23:33 +02:00

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