Deep pass: witchhouse + the wash trio — margins +1 -> +5..+7

The gate-3 wash cluster, structurally differentiated (one identity claim each that the neighbors cannot make, not target gerrymandering):

• ambient — the STATIC one: drone_min-dominant progressions (motion renders 0), kits ["off"] only (drumDensity strictly 0), chordEvery:32 (the longest harmonic plateau in the catalog).

• downtempo — the BEAT one: swing floor raised (never straight), bpm dropped below exotica's tiki floor, timeFeel pushPull bass +.022 / hat -.014 (the head-nod lean, drawless).

• newage — the MELODIC one: rubato prob 1 (gentler/slower than neoclassical — the only wash genre that breathes; every rival renders rubato 0), progressions always-moving.

• witchhouse — the drowned occult drone: drone-dominant progressions + a sampleEvents pitched-down ghost voice (dragged to .42, lowpassed, drenched) answering the back half of each drone bar (26 events at seed…

Verified: verify.sh --full --no-cache PASS: matrix 63/63, validate 5-seed, engine. Fixtures: exactly 60 drifted hashes = the four genres; 59 others + all kit streams byte-stable.

▶ Play it: Benthic Patience → Chandelier Drowning → Food Court Eternity — the three genres this change names, as one path https://stellate.app/?genre=downtempo&seed=2439&path=586.10667,1285.14089,1679.4415&xdur=0.077

0f32018 https://github.com/aboard-io/stellate/commit/0f32018fbd140e776608187b82ab773920f0b230