Renders movable {rootStr,offsets} and open {frets,onlyRoot} KB shapes; computes movable
base fret from chord rootPc in standard tuning (E-shape A7 -> fret 5); root in accent
purple; thumb/full sizes; graceful '-' fallback for unplaceable shapes. Critic PASS.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
5 progressions (8-bar country I-IV-V, Wagon Wheel folk axis, ragtime
I-VI7-II7-V7 circle, Rising Sun 6/8 climb with corrected changes,
bluegrass I-IV-I-V) x 2 plays: open G/C-family boom-chick sets with
capo strategy, anchor-finger folk grips, barre fallbacks. Comping
documents boom-chick, Carter bass runs, Travis picking, train beat,
waltz. Sourced Lester Flatt G-run licks. Research corrections honoured
(Rising Sun is i-III-IV-VI, not Andalusian; ragtime is the full VI7
circle). Validator and build green.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
5 progressions (circular I-IV-V, two-chord vamp, i-bVII minor vamp,
No Woman No Cry I-V6-vi-IV, verified rocksteady I-ii-iii-ii) x 2
plays: top-3 skank triads, Wailers middle-string set, top-4 partials,
quality-neutral 5+R dyads. One-drop/double-skank/ska/bubble grids
documented. Research flags honoured (NWNC is major-key; Get Up Stand
Up stored as near-one-chord; doo-wop claim replaced with verified
Queen Majesty changes). Validator and build green.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
5 progressions (Mixolydian vamp, I-IV-V, minor descent, axis, Dorian
riff cell) x 2 plays: open-chord Malcolm hits, second-guitar triads,
Keith sus figure, power-chord chug, Police add9 arpeggios, thumb-over
embellishments. omit3 is a declared omission like rootless - the
pitch-class check still applies. Validator and build green.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
5 forms (standard/quick-change 12-bar, 8-bar, minor blues, turnaround
cycle) x 2 plays each: barre shuffle, Texas 9th stabs, Chicago tritone
shells, minor m7 + 7#9 climax. 4 named comping patterns, improv rules,
2 sourced licks. Validator and build green.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
SCHEMA.md authoring contract, validate-kb.mjs quality gate (pitch-class
verification of shapes against chord qualities), registry, and the jazz
style: 5 progressions x 2 guitar plays (shells + drop-2), comping
rhythms, improv guidance, sourced licks. Validator and vite build green.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
vadimwit