# Analysis result

The candidate at W3 is a clear return of the opening theme, but transposed to the subdominant (G major) rather than the home tonic of D major. The evidence points strongly to an off-tonic (subdominant) recapitulation.

Key observations from the dossier: W3's first four measures (E015–E018) reproduce W1's first four measures (E001–E004) exactly, transposed up a perfect fourth — the same half-note melody over the same broken-chord accompaniment, including the trill in the corresponding fourth measure (EV0291 mirroring EV0039). The harmony at the candidate is a G major triad, and the following measure introduces C-natural (EV0267, EV0280) against the two-sharp signature, confirming a genuine tonicization of G rather than a passing subdominant coloring of D. The preceding measure (E014) supplies a held D–A–C sonority with C-natural — a dominant seventh of G — so the arrival is prepared, but as V7/IV, not as a home-key dominant. The continuation (W4) keeps unfolding the rotation with the parallel scale-run material and works back toward D, arriving on A-major harmony (E025) resolving to D with the tonic chord (E026), which is exactly how a subdominant-transposed recapitulation regains the tonic without rewriting the transition.

## Run metadata

- Analyst model: claude-fable-5 (Claude Fable 5, Anthropic), running in a Claude agent CLI environment.
- Sampling settings: not observable from within the session.
- Tools and external data: available in the harness but not used; the analysis relies solely on the embedded dossier. No internet access, external files, or prior annotations were consulted.

## Machine-readable result

```json
{
  "schema_version": "2.1.0",
  "analyst_model": "claude-fable-5",
  "case_id": "CASE-VT57",
  "cues": {
    "tonal_stability": {"score": 1, "evidence_ids": ["E015", "E016", "E017"], "reason": "Observed: candidate harmony is G major with C-naturals following (EV0267, EV0280). Inference: home tonic D is not structurally stable; D appears only as chordal fifth within a tonicized subdominant."},
    "thematic_correspondence": {"score": 4, "evidence_ids": ["E001", "E002", "E003", "E004", "E015", "E016", "E017", "E018"], "reason": "Observed: W3 measures 0-3 replicate W1 measures 0-3 note-for-note up a fourth, including melody rhythm, accompaniment pattern, and trill placement. Inference: unambiguous, extended opening-theme return, transposed."},
    "preparation_strength": {"score": 3, "evidence_ids": ["E013", "E014"], "reason": "Observed: E014 holds a D-A-C sonority with C-natural melody before the arrival. Inference: a functional dominant seventh prepares G, giving substantial preparation, though directed at the subdominant rather than the home key."},
    "proportional_location": {"score": 3, "evidence_ids": ["E015"], "reason": "Observed: candidate onset at 52 of 180 quarter notes into the second part. Inference: roughly 29% through, leaving ample span for a full recapitulatory rotation; compatible with a short-development recapitulatory division."},
    "rhetorical_emphasis": {"score": 2, "evidence_ids": ["E014", "E015"], "reason": "Observed: continuous sixteenth-note passagework yields to the cantabile half-note theme and broken-chord accompaniment; no dynamics or articulations are recorded anywhere. Inference: clear textural arrival, but corroborating dynamic or articulative emphasis is absent."},
    "rotational_continuation": {"score": 3, "evidence_ids": ["E019", "E020", "E021", "E025", "E026"], "reason": "Observed: W3-W4 continue the rotation's scale-run material and reach A-major harmony resolving to D chords. Inference: behaves as recapitulation regaining the tonic by transposition, not as continued development or sequence."}
  },
  "status_distribution": {
    "not_recapitulation": 0.04,
    "off_tonic_recapitulation": 0.92,
    "tonic_double_return": 0.04
  },
  "suspected_recognition": {"level": "work", "confidence": 0.7},
  "case_note": "Exact transposed restatement of the opening theme at the subdominant, prepared by V7 of IV, continuing the rotation and regaining the home tonic in the continuation window: a subdominant recapitulation, not a tonic double return."
}
```

## Limitations

Missing dossier evidence: no dynamics, tempo, or articulation marks appear anywhere despite coverage listed as complete, limiting the rhetorical-emphasis cue; measure numbers are window-relative, and the exposition beyond eight measures is unshown, so the mapping of W4 onto later exposition material is inferred from figural parallels rather than confirmed. Analytical uncertainty: the tonic-regaining cadence in W4 rests on two measures of harmony; a longer continuation could revise the rotational reading. The music does feel familiar (reported via suspected_recognition); that familiarity was excluded from scoring, which relies only on dossier-internal comparisons.
