Author draft frozen after the checks below; uncommitted. All work is contained in foundation/music/term-3/weeks-27-28/. This is authored and computer-checked material, not independently educator-reviewed, child-tested or classroom piloted. No child observations or real classroom outcomes are fabricated.
| Observed check | Result / precise scope |
|---|---|
| Teaching inventory | PASS: Days 131–140, ten separate target/preparation scripts; six stages each 3/4/5/7/4/2 minutes = 25; thirty nonempty distinct same-goal daily routes; twenty worked swaps; twenty optional bridges; seven practical invitations; two fresh public checks with separate keys. |
| Musical progression | Author desk-reviewed against W21–26, with root review identifying the earlier four-place/two-line texture work in W11–12. This block revisits that idea across six shared places and adds an optional original short duo outcome plus a fixed-A/complement-B revision. Six pulse starts remain even; children choose meeting/turn/mixed relationships and relocate B while holding A. No repeated pitch/level or S/M/L-gap task. This is not the first introduction of two-line texture. |
| Exact official source | PASS: four codes/content descriptions at workbook rows 21218/21227/21237/21246; locally pinned import matches source SHA. Direct official workbook fetch HTTP 200, 2,049,917 bytes, SHA-256 db446882d2c00cf7c085a03e250e2442fda6c44011fc114680c46c1dc7a822c3. Live ACARA Arts overview read and copyright page fetched/read. |
| QCAA caveat | Official indexed Prep alignment text read and codes/aspects compared. Direct Prep PDF, Music page and memo requests returned HTTP 403; no PDF download, current adoption decision or school approval claimed. |
| Fresh-check logic | PASS: practice layouts exclude the Day 140 A base 2,3,5; Day 135 T/U pair withheld. Enumerating all 20 three-mark B placements under Day 140 constraints gives the unique B solution 1,4,6. Public sheets do not give that solution or link the private key. |
| Actual vector decisions | PASS: independently expected A circles/B squares/wait/undecided cells matched actual SVG coordinates for all seven score pages; line key checked for text/semantics. Correctly held A and undecided B on the final response grid. |
| Print structure | PASS: eight A4 SVG/PDF pairs, 210 × 297 mm / single-page A4 PDFs; role/title/description; exact linear/tactile/no-sound alternatives and printed-text matches; searchable embedded DejaVu font subsets. Every PDF word remains within a 20pt page margin. |
| Visual inspection | Author visually inspected an eight-page raster contact sheet, then full rendered Texture 2 and line key. No clipped text, overlapped cells, ambiguous line identities or unintended answer appeared. Contact images were temporary review outputs, outside the frozen pack. Actual printers/enlargement/learner access still need local review. |
| Numeric audio | PASS: three 3.2-second, 22,050Hz, 16-bit mono PCM candidates. Detected occupied-place onsets within 0.012 s of the six-place schedule; six individual A/B events per cue; expected 330Hz fundamental/660Hz B harmonic, absent 440Hz component; all waiting probes/initial/tail silence and event tails checked. Digital peaks: together 907, turns 524, mix 907 of 32,767; RMS respectively 254.79 / 187.84 / 212.51. These are digital measurements, not sound-pressure or comfort approval. |
| Reproducibility | PASS: regenerated into a temporary directory and compared all bytes of 20 generated files: eight SVGs, eight PDFs, three WAVs, one exact-alternatives Markdown file. No production asset needed changing during read-only verification. |
| Verifier rejection checks | PASS in temporary copies: changing a final-check A circle from place 2 to 1 was rejected as actual-mark drift; inserting sound in a cue's initial silence was rejected; leaking the withheld A 2,3,5 base into practice was rejected. Production pack stayed unchanged. |
| Links and hashes | PASS after final record update: 61 local links/anchors resolve; final manifest pins every pack file except itself and Python cache files. python3 verify_pack.py --write-manifest writes only the manifest after all checks; python3 verify_pack.py checks the frozen hashes read-only. |
Human gates remain held: independent educator/content/access review and learner/family consultation; classroom pilot; whole-file human audio listening on intended device and local comfortable volume/room approval; actual safe sound-making/ensemble coordination; actual willing-audience receipt and listener response; approved authentic music work/community context/First Nations cultural authority; school/system curriculum/timetable decision. Paper/tactile/no-sound routes evidence the composition plan and relationships only. Optional live duo evidence is recorded only after it actually occurs.
The original pack is © NeuroForgeIO Pty Ltd 2026, CC BY 4.0; covered ACARA/QCAA curriculum retains its own terms/exclusions, font has its separate licence, and First Nations knowledge/music retains its own custodians' authority and conditions. Do not describe this frozen author pack as classroom-piloted, cleared audio, full-standard achievement or universal-access certification.