ledger: D-76/L-77/L-78 — related-area v2 (rail always-multi-chord most-recent-first; try-this 3-cap stable 3x3 guitar)

docs/agents/LEDGER.md

@@ -83,7 +83,10 @@ Standing principles (memory): scroll > click; nothing duplicated; one global ins
 | D-75 | **Related-area space layout** (user 2026-07-13, after seeing it — "we have enough space in that area… fit everything in one big screen"): (a) TRY THIS — show the current chord's up-to-4 substitutions SIDE BY SIDE (replaces the one-at-a-time rotation; user has seen rotation + prefers all-visible), each a small card = chord label + a mini instrument diagram of that chord's voicing (ChordDiagram guitar / MiniPiano piano, following the GLOBAL instrument selector; bass = honest simple) + a compact why + tap→ChordDetailModal; (b) SUGGESTED PROGRESSIONS (RelatedProgressions) — 2×2 grid instead of the vertical list. Honest space math for the LEFT column (~744px, wider than the 500px rail). Instrument prop threading for TryThis (App mount passes `instrument`). Bounded L-75/L-76 (disjoint: TryThis.jsx+App-mount vs RelatedProgressions.jsx) | design | ready | — | `docs/design/related-area-layout.md` | side-by-side try-this with per-sub diagrams + 2×2 related spec'd with honest column math; instrument-follow named; L-75/L-76 bounded |
 | L-75 | Implement TryThis side-by-side + per-sub instrument diagrams per D-75 (drops the rotation; follows the loop/current chord; instrument-following diagram) | engineering | done `957ce88` (combined-gate PASS) | D-75 | `src/components/TryThis.jsx`, `src/App.jsx` (pass `instrument` to the mount — grep-clean) | up-to-4 subs side by side each with a playable-shape diagram in the current instrument; tap→modal; honest empties; build+smoke green |
 | L-76 | Implement RelatedProgressions 2×2 grid per D-75 (same-style + cross-style sections in a 2-col grid using the left-column width) | engineering | done `e695716` (combined-gate PASS) | D-75 | `src/components/RelatedProgressions.jsx` | 2×2 layout; both sections adapt; no logic/scoring change; build+smoke green |
-| C-70 | Sprint-end sweep + PR update (BOTH gitea+github). Fold: drop stale ", each playable" from VoicingBrowser aria (:278/:314, combined-gate finding) | quality | backlog | L-70, L-71, L-72, L-74, L-75, L-76 | `src/components/VoicingBrowser.jsx` (aria one-liner) | all green; aria fixed; PRs updated |
+| D-76 | **Related-area v2** (user 2026-07-13, "one last change"): (a) VOICINGS RAIL — currently shows all loop stations when a loop matches, but only the SINGLE current chord in the heard-live/no-loop fallback (JamGuide railContent :373-424). User wants: ALWAYS show multiple chords' voicings, MOST RECENT FIRST — loop chords when matched (reordered most-recent-first), else the recent distinct chord history (from chordHistory, cap ~6). Never just one. (b) TRY THIS — cap at **3** suggestions (was 4); **STABLE fixed layout** (reserve 3 slots so 2-vs-3 subs never shifts position — the user: "annoying when the layout changes then u dont know where to look"); each suggestion shows **≥3 ways to play it** — guitar = **3×3** (3 subs × up to 3 getGuitarVoicings shapes each), piano = **1** MiniPiano each ("for piano it can be just one thats okay"), bass = root caption. Honest space math (left col ~744px for the 3×3 guitar; rail column for the multi-chord history). No user gate: pick strongest, ≥2 rejected alts | design | ready | — | `docs/design/related-area-v2.md` | rail always-multi-chord-most-recent-first spec'd; try-this 3-cap + stable-3-slot + 3-shapes-guitar/1-piano with honest math; L-77/L-78 bounded |
+| L-77 | Voicings rail per D-76: always show multiple chords (loop / recent history) most-recent-first, never one | engineering | backlog | D-76 | per D-76 (GlanceRail/JamGuide — re-lock at promotion) | rail shows the recent chords most-recent-first at all times; loop highlighting preserved; build+smoke green |
+| L-78 | Try-this per D-76: max 3 subs, stable 3-slot layout, 3 guitar shapes each (3×3) / 1 piano each | engineering | backlog | D-76 | `src/components/TryThis.jsx` (+ per doc) | ≤3 subs in fixed slots; guitar 3 shapes/sub; piano 1; layout stable 2-vs-3; reactivity preserved; build+smoke green |
+| C-70 | Sprint-end sweep + PR update (BOTH gitea+github). Fold: drop stale ", each playable" from VoicingBrowser aria (:278/:314, combined-gate finding) | quality | backlog | L-70, L-71, L-72, L-74, L-75, L-76, L-77, L-78 | `src/components/VoicingBrowser.jsx` (aria one-liner) | all green; aria fixed; PRs updated |
 
 > Sequencing (three parallel chains, file-disjoint): (A) D-70 → L-70 → L-71 (rail/licks); (B) D-72✓ → L-72 (related, same-style); (C) D-73 → L-73 → L-74 (try-this subs). ALL DONE except A's builds. **L-74b (2026-07-13, in-review):** TryThis loop-fallback so the card is visible for a rolled/detected loop without live input (user "i dont see rotating cards") — TryThis.jsx only, SSR-verified. **Batch plan:** L-70 ‖ L-71 ‖ L-74b (disjoint) → ONE combined gate (rail/licks + dock byte-identity + full-app SSR + contract) → commit all → push both remotes. C-70 closes.