# Analysis result

## Run metadata

Analyst model: GPT-5 (Codex). Provider: OpenAI. Model settings: unknown. Tools were available but not used; external data was prohibited and not accessed.

## Machine-readable result

```json
{
  "schema_version": "2.1.0",
  "analyst_model": "GPT-5 (Codex)",
  "case_id": "CASE-DZWT",
  "cues": {
    "tonal_stability": {
      "score": 4,
      "evidence_ids": ["E015", "E016", "E017", "E018"],
      "reason": "Observed: the candidate begins with downbeat D octaves and continues through D-major chord tones D, F-sharp, and A. Inference: this sustained tonic arpeggiation strongly establishes the home tonic."
    },
    "thematic_correspondence": {
      "score": 4,
      "evidence_ids": ["E001", "E002", "E003", "E004", "E005", "E006", "E015", "E016", "E017", "E018", "E019", "E020"],
      "reason": "Observed: E015–E020 reproduce E001–E006 in pitches, rhythm, voicing, register, and opening piano dynamic. Inference: the opening theme returns with essentially complete identity."
    },
    "preparation_strength": {
      "score": 3,
      "evidence_ids": ["E012", "E013", "E014", "E015"],
      "reason": "Observed: a sustained A–C-sharp–G dominant-seventh field precedes a thinning melody and resolves into D at E015. Inference: dominant and textural preparation is substantial, although the immediate cadence is somewhat attenuated."
    },
    "proportional_location": {
      "score": 3,
      "evidence_ids": ["E015"],
      "reason": "Observed: the candidate occurs 159 of 390 quarter-note units into the second part, approximately 41 percent. Inference: this is compatible with a recapitulatory division, though location alone is not decisive."
    },
    "rhetorical_emphasis": {
      "score": 3,
      "evidence_ids": ["E014", "E015"],
      "reason": "Observed: active upper-line motion and thinning accompaniment give way to long, registrally aligned D octaves with a renewed piano marking. Inference: the coordinated textural and dynamic reset substantially marks an arrival."
    },
    "rotational_continuation": {
      "score": 4,
      "evidence_ids": ["E007", "E008", "E021", "E022", "E023", "E024"],
      "reason": "Observed: after the six-measure return, E021–E022 exactly continue with opening measures E007–E008; related tonic-oriented material follows. Inference: the passage resumes the opening rotation rather than continuing developmental sequence."
    }
  },
  "status_distribution": {
    "not_recapitulation": 0.005,
    "off_tonic_recapitulation": 0.001,
    "tonic_double_return": 0.994
  },
  "suspected_recognition": {
    "level": "style",
    "confidence": 0.68
  },
  "case_note": "The exact opening-theme restoration, simultaneous home-tonic arrival, dominant preparation, and continued opening rotation jointly provide strong evidence for a tonic double return."
}
```

## Limitations

The dossier supplies only selected windows rather than the complete second part, so later tonal and formal outcomes cannot be checked. Instrumentation and performance realization are also absent. Analytical uncertainty chiefly concerns how strongly the proportional location and softened immediate cadence define the formal boundary; it does not materially weaken the exact thematic-tonic return.