# Analysis result

The candidate at W3 is best read as a tonic recapitulation with a chromatically recolored first bar. The opening theme returns nearly note-for-note at original pitch from its second measure onward (E016–E018 match E002–E004), and the home tonic D is regained by the second/third bar (E016 dominant, E017 tonic). The one complication is the very first candidate measure (E015): the bass sounds a B-major sonority (B2–D#3–F#3) and the melodic head enters a step lower than the opening (G4–A4–G4 versus A4–B4–A4 in E001), so theme and tonic do not coincide at the literal onset. The continuation window stays grounded in D with dominant–tonic figuration rather than sequencing onward (E021–E026), supporting recapitulatory function.

## Run metadata

- Analyst model: claude-fable-5 (Claude Fable 5, Anthropic), operating as a Claude Agent SDK session.
- Sampling settings: not observable from within the session.
- Tools and external data: file, shell, and web tools exist in the harness but none were used; the analysis relies solely on the embedded dossier. No other files, internet resources, or prior annotations were accessed.

## Machine-readable result

```json
{
  "schema_version": "2.1.0",
  "analyst_model": "claude-fable-5",
  "case_id": "CASE-8JQJ",
  "cues": {
    "tonal_stability": {
      "score": 2,
      "evidence_ids": ["E015", "E016", "E017", "E018"],
      "reason": "Observed: onset bass is B2-D#3-F#3, not tonic (E015); dominant A2-C#3 follows (E016), tonic D3 arrives measure 2 (E017). Inference: tonic is regained quickly but is not present at the candidate onset."
    },
    "thematic_correspondence": {
      "score": 3,
      "evidence_ids": ["E001", "E002", "E003", "E004", "E015", "E016", "E017", "E018"],
      "reason": "Observed: measures 1-3 of candidate match opening measures 1-3 nearly note-for-note at pitch; incipit melody sits a step lower (G4 vs A4). Inference: clear, extensive return with an altered head."
    },
    "preparation_strength": {
      "score": 2,
      "evidence_ids": ["E012", "E013", "E014", "DR0002"],
      "reason": "Observed: chromatic bass B2-D#3 (E012), forte arrival, then descending chords thinning to piano before the candidate (E014, DR0002). Inference: rhetorical caesura-like preparation, but no sustained home-dominant preparation."
    },
    "proportional_location": {
      "score": 3,
      "evidence_ids": ["E015"],
      "reason": "Observed: candidate onset at 72 of 141 quarter notes into the second part, about 51 percent. Inference: fully compatible with a recapitulatory division in a rounded binary or sonata-type second part."
    },
    "rhetorical_emphasis": {
      "score": 3,
      "evidence_ids": ["E015", "DR0003", "DR0002"],
      "reason": "Observed: forte marking at the candidate (DR0003) after preceding piano (DR0002), with a full three-note bass chord (E015). Inference: dynamic and textural contrast deliberately marks the arrival."
    },
    "rotational_continuation": {
      "score": 3,
      "evidence_ids": ["E016", "E017", "E018", "E019", "E021", "E022", "E023", "E024"],
      "reason": "Observed: candidate tracks the opening through measure 3, diverges at measure 4 (E019), then continuation shows D-major dominant-tonic figuration over A pedal (E022, E023). Inference: recapitulatory restatement with alteration, not ongoing developmental sequence."
    }
  },
  "status_distribution": {
    "not_recapitulation": 0.1,
    "off_tonic_recapitulation": 0.35,
    "tonic_double_return": 0.55
  },
  "suspected_recognition": {"level": "style", "confidence": 0.3},
  "case_note": "Genuine, extensive thematic return whose first bar is reharmonized on a B-major sonority with the melodic head a step low; from the next bar the theme runs at original pitch over dominant-then-tonic harmony, and the continuation stays in D major. Classified as a tonic double return with a decorated, briefly off-tonic incipit; the off-tonic reading retains meaningful probability."
}
```

## Limitations

Missing dossier evidence: no tempo, instrumentation, or full-movement context; windows W2–W3 may omit intervening measures, so the exact gap before the candidate is unverifiable; only the second-part proportion is given, not whole-piece proportions. Analytical uncertainty: the B-major onset sonority (E015) admits two readings — a chromatic recoloring of an essentially tonic return versus a genuinely off-tonic initiation — which drives the split between the two recapitulation labels. The idiom feels stylistically familiar (galant keyboard binary), reported only via `suspected_recognition`; no familiarity was used as evidence.
