# Analysis result

## Run metadata

Analyst model: GPT-5-based Codex. Provider and generation settings: unknown. Tools were available, but dossier restrictions prohibited their use; no tools or external data were used.

## Machine-readable result

```json
{
  "schema_version": "2.1.0",
  "analyst_model": "GPT-5-based Codex",
  "case_id": "CASE-Q2R9",
  "cues": {
    "tonal_stability": {
      "score": 3,
      "evidence_ids": ["E016", "E017", "E018", "E019", "E020", "E021"],
      "reason": "Observed: E016's candidate onset is an unaccompanied A pickup leading into E017, where D, F-sharp, and A establish the home tonic; subsequent measures remain diatonic. Inference: tonic stability is substantial after a pickup-delayed arrival."
    },
    "thematic_correspondence": {
      "score": 4,
      "evidence_ids": ["E001", "E002", "E003", "E004", "E005", "E006", "E016", "E017", "E018", "E019", "E020", "E021"],
      "reason": "Observed: E016's final-quarter pickup duplicates E001, and E017–E021 duplicate E002–E006 in melody, rhythm, and accompaniment. Inference: this is an extensive, essentially literal opening-theme return."
    },
    "preparation_strength": {
      "score": 1,
      "evidence_ids": ["E014", "E015", "E016"],
      "reason": "Observed: E014–E015 continue rapid, chromatic, high-register motion and end on G; E016 enters directly without rest, dominant pedal, cadence, dynamic, or barline accent. Inference: preparation is weak, primarily a registral and textural reset."
    },
    "proportional_location": {
      "score": 2,
      "evidence_ids": ["E016"],
      "reason": "Observed: dossier metadata places the candidate 120 of 408 quarter-notes into the second part, about 29%; E016 marks its onset. Inference: this is possible for a recapitulatory division but relatively early and therefore equivocal."
    },
    "rhetorical_emphasis": {
      "score": 2,
      "evidence_ids": ["E015", "E016"],
      "reason": "Observed: E015's high, chromatic figuration gives way in E016 to a lower, unaccompanied thematic pickup; no dynamics or arrival articulations are marked. Inference: texture and register clarify the return, but emphasis is restrained."
    },
    "rotational_continuation": {
      "score": 4,
      "evidence_ids": ["E002", "E003", "E004", "E005", "E006", "E007", "E008", "E009", "E017", "E018", "E019", "E020", "E021", "E022", "E023", "E024", "E025"],
      "reason": "Observed: E017–E024 reproduce E002–E009 measure-for-measure across melody, rhythm, accompaniment, and register before E025 continues related material. Inference: the long ordered rotation strongly favors recapitulation over continued development."
    }
  },
  "status_distribution": {
    "not_recapitulation": 0.015,
    "off_tonic_recapitulation": 0.035,
    "tonic_double_return": 0.95
  },
  "suspected_recognition": {
    "level": "style",
    "confidence": 0.5
  },
  "case_note": "The exact pickup-theme restoration and extended home-key rotation strongly support a tonic double return, despite understated preparation and the absence of tonic accompaniment at the pickup's precise onset."
}
```

## Limitations

Missing evidence: the dossier provides selected symbolic windows rather than the complete intervening second-part music, audio, performance nuance, or explicit formal annotations. Dynamics and articulations are encoded but offer little arrival evidence. Analytical uncertainty remains because the thematic pickup precedes clear tonic support, blurring the exact tonal-return instant, while the 120/408 location alone only weakly constrains formal function.