# Analysis result

## Run metadata

Model: GPT-5-based Codex  
Provider: OpenAI  
Settings: Unknown  
Tools/external data: Tools were available but not used; no external data were accessed.

## Machine-readable result

```json
{
  "schema_version": "2.1.0",
  "analyst_model": "GPT-5 Codex",
  "case_id": "CASE-Q2R9",
  "cues": {
    "tonal_stability": {
      "score": 3,
      "evidence_ids": ["E016", "E017"],
      "reason": "Observed: the unaccompanied A–G–F-sharp pickup leads into D-major melodic and accompanimental material. Inference: home-tonic stability is substantial, though tonic harmony does not coincide with the candidate’s exact onset."
    },
    "thematic_correspondence": {
      "score": 4,
      "evidence_ids": ["E001", "E002", "E003", "E004", "E005", "E006", "E016", "E017", "E018", "E019", "E020", "E021"],
      "reason": "Observed: E016’s final beat reproduces E001, and E017–E021 reproduce E002–E006 in order and at the same pitches. Inference: this is a strong, extensive opening-theme return."
    },
    "preparation_strength": {
      "score": 1,
      "evidence_ids": ["E014", "E015", "E016"],
      "reason": "Observed: chromatic sequential motion continues into the candidate without a barline, explicit cadence, dominant pedal, or dynamic signal, although accompaniment withdraws. Inference: preparation is weak and mainly textural."
    },
    "proportional_location": {
      "score": 3,
      "evidence_ids": ["E016"],
      "reason": "Observed: the candidate occurs 120 of 408 quarter-notes into the second part, about 29%. Inference: an early recapitulatory division is plausible, leaving ample space for a long recapitulatory span."
    },
    "rhetorical_emphasis": {
      "score": 2,
      "evidence_ids": ["E015", "E016", "E017"],
      "reason": "Observed: accompaniment drops out and the high preceding passage resets to the opening register, but there is no dynamic, accentual, or barline emphasis. Inference: the arrival is perceptible yet deliberately understated."
    },
    "rotational_continuation": {
      "score": 4,
      "evidence_ids": ["E001", "E002", "E003", "E004", "E005", "E006", "E007", "E008", "E009", "E016", "E017", "E018", "E019", "E020", "E021", "E022", "E023", "E024"],
      "reason": "Observed: E016–E024 duplicate E001–E009 consecutively at the same pitch level. Inference: sustained ordered rotation strongly favors recapitulation over continued development or sequence."
    }
  },
  "status_distribution": {
    "not_recapitulation": 0.005,
    "off_tonic_recapitulation": 0.01,
    "tonic_double_return": 0.985
  },
  "suspected_recognition": {
    "level": "style",
    "confidence": 0.88
  },
  "case_note": "The exact, same-level return of the opening pickup and extended subsequent rotation outweighs the candidate’s weak local preparation and understated onset."
}
```

## Limitations

The dossier supplies complete symbolic data only for selected windows, not a continuous global formal map or audio realization. Consequently, large-scale harmonic trajectory and performed emphasis are missing. Analytical uncertainty remains over whether the unaccompanied pickup itself or the ensuing D-major landing constitutes the structural return, and over how strongly the unusually early proportional position should affect classification.