From c5997163b58ae582a1143916165d35e189f0f872 Mon Sep 17 00:00:00 2001
From: type-two <jingkohn@gmail.com>
Date: Fri, 10 Jul 2026 01:14:39 +1000
Subject: [PATCH] =?UTF-8?q?=F0=9F=8E=A8=20hand-tuned=20skin=20home=20keys?=
 =?UTF-8?q?=20=E2=80=94=2014=20deliberate,=20distinct=20moods?=
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Replace the auto-derived skin scale (which gave 3× C wholetone and a sparse
hirajoshi default) with a curated SKIN_HOME map — a considered {root,scale} per
cosmology, every pair unique so turning the wheel always changes the key.
Verified: 14/14 distinct. Default (chakra) is now warm C minor pentatonic.

chakra C min-pent · planes A lydian · tree D minor · lodge G major ·
ladder E phrygian · yggdrasil F# minor · lataif B dorian · wuxing F# pentatonic ·
tarot A minor · zodiac C mixolydian · futhark G dorian · wheelyear F major ·
artist C wholetone · bagua E min-pent. (Fallback to derived scale for any future skin.)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
---
 viz/index.html | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/viz/index.html b/viz/index.html
index f3cfc94..1ac3100 100644
--- a/viz/index.html
+++ b/viz/index.html
@@ -4305,8 +4305,28 @@
   // Its home tonality (its first station's scale) becomes the global scale, so the
   // sequencer AND the ambient data-melodies re-harmonise when you change cosmology.
   let skinTunesWorld = true;
+  // Hand-tuned home key per Spirit — a deliberate, distinct mood for each cosmology
+  // (every {root,scale} pair is unique, so turning the wheel always changes the key).
+  const SKIN_HOME = {
+    chakra:    { root: 0,  name: "minor_pent" },   // C — warm, grounded, meditative
+    planes:    { root: 9,  name: "lydian" },        // A — airy, ascending (higher planes)
+    tree:      { root: 2,  name: "minor" },         // D — deep, solemn, mystical
+    lodge:     { root: 7,  name: "major" },         // G — noble, bright, geometric
+    ladder:    { root: 4,  name: "phrygian" },      // E — ancient, alchemical
+    yggdrasil: { root: 6,  name: "minor" },         // F# — cold, epic, mythic
+    lataif:    { root: 11, name: "dorian" },        // B — spiritual, warm-modal (Sufi)
+    wuxing:    { root: 6,  name: "pentatonic" },    // F# — the classic Chinese pentatonic
+    tarot:     { root: 9,  name: "minor" },         // A — mysterious, fateful
+    zodiac:    { root: 0,  name: "mixolydian" },    // C — cosmic, rolling, bright
+    futhark:   { root: 7,  name: "dorian" },        // G — old folk modal (runes)
+    wheelyear: { root: 5,  name: "major" },         // F — pastoral, seasonal
+    artist:    { root: 0,  name: "wholetone" },     // C — pure colour, no tonic (Kandinsky)
+    bagua:     { root: 4,  name: "minor_pent" },    // E — Eastern pentatonic (I Ching)
+  };
   function skinHomeScale() {
-    const st = activeSkin.stations && activeSkin.stations[0];
+    const h = SKIN_HOME[activeSkin.key];
+    if (h && SCALES[h.name]) return { root: h.root, name: h.name };
+    const st = activeSkin.stations && activeSkin.stations[0];   // fallback for any future skin
     const sc = st && activeSkin.scaleOf(st.key);
     if (sc && SCALES[sc.scale]) return { root: ((sc.root % 12) + 12) % 12, name: sc.scale };
     return null;