Piano licks live in <style>/piano.js licks arrays: required quality
(machine truth), deg XOR approach targeting the NEXT deg note
(enclosures fall out as idiom; same-type consecutive approaches
rejected), octave 0-2 with a 25-semitone cap proven one-semitone tight
against MiniPiano's 37-key window, 4-word piano technique vocab
(grace-note added; bend/vibrato impossible on keys), plus a dormant
smoke guard that activates when PianoLickCard.jsx exists. Smoke
879/879. Critic PASS (18 fresh sabotage cases, enclosure arithmetic
hand-verified, dormant guard proven to fire).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
checkPianoRecipe stacks each hand low-to-high (nearest strictly above,
repeated pc -> octave up) and fails any hand spanning > 15 semitones
(minor 10th, SCHEMA rule 3); errors name style/prog/play/chord/hand/
span; refactored to a pure exported checker surfacing all errors per
recipe. Smoke +6 checks -> 799. Independent gate PASS (injection
surfaces 10 named errors exit 1; weakened gate caught behaviorally).
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>
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>