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>