Scope: internal desk reading, source-key arithmetic, deterministic artifact validation and A4 visual inspection on 30 September 2026. No child, classroom teacher, access specialist, cultural authority or funder has piloted this pack. Candidate audio still needs human listening/volume approval on intended equipment. These sessions are optional formative starts.
Teacher · run Day 77 without a speaker
Set A A B B on one four-place strip and copy it below. Change only lower place 2 A to B, yielding A B B B. Place one wide switch marker after place 2 in the first row and after place 1 in the revised row. Follow six stages of 3/4/5/7/4/2 minutes. Save both versions, exact child-directed change and musical reason. Do not claim the listener heard the switch, the child played an instrument or the integrated capacity station showed a result.
Learner · raised key and AAC through Day 75
For the unfamiliar five-place U source A B B A B, fix round A and striped-square B symbols with printed words. Reveal each adjacent pair with a wide guide. The child can point, select boundary cards or use AAC; a neutral adult moves only as directed. Save every selected boundary before giving a model. A pass is available. This supports source-key reading, not timbre discrimination by ear.
Fresh-check audit
U asks for all transitions in A B B A B; V asks a child to construct an ending with exactly A A A B. Neither source is the adult model on Day 78 or a worked A–F practice row. Public sheets print no completed key. Keep the educator key closed until the first full answer is saved. After-check swaps use different sources.
Prospective funder or assessor · what exists and what is held
The QCAA crosswalk cites exact Prep rows and separates the real-work and actual-audience gates. Six original practice and two fresh-check A4 SVG/PDF graphics each have exact text/tactile routes. Three candidate cues have explicit component/event transcripts; every source-planning task has an offline silent route. The rights ledger separates original resources from official descriptions and local cultural permissions. The verifier and SHA-256 manifest establish internal consistency and file integrity, not learning impact, universal access, user uptake or investment readiness.
Before classroom use
Educator checks print/card size, raised preparation, AAC, consent, hygiene, safe local sources and comfortable sound on intended speakers. A genuine musical work needs maker/context and permission, including relevant cultural authority. Record actual child listening, source making and willing-audience receipt separately. Local timetable and curriculum adaptation, a classroom pilot, independent access review and reviewed translations remain open.