2.8 KiB
Pass 12 — Batch Tracker
Maintained by Agent F (testkit & tripwire), per spec/PHASE2_QUICKSTART.md:
"Ambiguities discovered during Phase 2 implementation go into a Pass 12 batch,
not into code improvisations. … Don't open Pass 12 until at least 3 items
accumulate."
Status: OPEN. Agent H's landing (spelling + decomposition pre-passes) surfaced five candidates, crossing the ≥3 threshold. This file is the running collection; G ratifies (or defers/rejects) the batch when Phase 2's open questions are resolved. F collects, F does not resolve.
How an item lands here
When implementation hits a behavior the ratified spec does not determine, the
responsible agent records it in their crate's DECISIONS.md with an ID
(P12-<agent><n>) and a one-line rationale, then adds a row below. Improvising in
code instead is the failure mode this batch exists to prevent.
Items
| ID | Source | Summary | Disposition target |
|---|---|---|---|
| P12-H1 | epiphany-core H |
Ratify SpellingAlgorithmId::Default = Temperley line-of-fifths v1 (Pass 11 closed before H landed; the id "default" is the crate's proposal until ratified — not a byte layout, so nothing golden-locks on it). |
G (algorithm-choice ratification) |
| P12-H2 | epiphany-core H |
KeySignatureChange / ClefChange are anchor-only placeholders; context-aware spelling infers tonal context from the melody (line-of-fifths centre of gravity) rather than a declared key. A real key/clef content model would let spelling/decomposition honour declared keys and place cancelling naturals. Flagged as a graph-model gap. |
G (graph model) |
| P12-H3 | epiphany-core H |
Chromatic-run convention (ascending = sharps, descending = flats) is only a tiebreak in the centre-of-gravity rule, so an isolated chromatic run with no tonal context may pick the enharmonic the convention would not. Voice-leading refinement deferred. | G / Pass 12 (spelling) |
| P12-H4 | epiphany-core H |
Decomposition simplifications: single governing meter per region (multi/mid-region meter changes deferred); region origin assumed a barline (anacrusis deferred); compound-meter beat grouping beyond the dyadic default; tuplet nesting and cross-beat tuplet members; double+ augmentation dots (MAX_DOTS = 1). |
G (decomposition scope) |
| P12-H5 | epiphany-core H |
Automatic spelling under aleatoric regions (the spec's open question). H spells pitches region-independently but performs no region-specific aleatoric spelling; defer if the algorithm does not generalise cleanly. | G / Pass 12 (open question) |
Not yet open elsewhere
Track A's other agents (I) and Track B (K, J) have not yet contributed items. When they do, append rows; the batch is already open, so they join directly (no new threshold).