# Analysis result

## Run metadata

Provider: OpenAI. Model: GPT-5-based Codex; exact variant and settings unknown. Tools were available but not used. External data was neither available nor used.

## Machine-readable result

```json
{
  "schema_version": "2.1.0",
  "analyst_model": "GPT-5-based Codex (exact variant unknown)",
  "case_id": "CASE-Q2R9",
  "cues": {
    "tonal_stability": {
      "score": 3,
      "evidence_ids": ["E016", "E017"],
      "reason": "Observed: the return starts unaccompanied on A, but D-major tonic sonority enters in the following measure. Inference: the anacrustic opening delays rather than denies substantial home-tonic stability."
    },
    "thematic_correspondence": {
      "score": 4,
      "evidence_ids": ["E001", "E002", "E003", "E016", "E017", "E018"],
      "reason": "Observed: the A–G–F-sharp pickup and ensuing E–D material reproduce the opening’s pitches, rhythm, grace note, register, and accompaniment. Inference: this is an extensive, strongly identifiable opening-theme return."
    },
    "preparation_strength": {
      "score": 1,
      "evidence_ids": ["E014", "E015", "E016"],
      "reason": "Observed: chromatic sequential passagework and textural thinning precede the return, without an explicit cadence, sustained dominant, accent, or boundary. Inference: preparation is weak and primarily transitional."
    },
    "proportional_location": {
      "score": 2,
      "evidence_ids": ["E016"],
      "reason": "Observed: the candidate occurs 120 of 408 quarter notes into the second part, about 29 percent. Inference: this is early but still compatible with a long recapitulation, yielding mixed support."
    },
    "rhetorical_emphasis": {
      "score": 1,
      "evidence_ids": ["E015", "E016", "E017"],
      "reason": "Observed: the theme enters mid-measure within an unaccompanied line, with no dynamics, accents, articulation change, or special barline; accompaniment resumes later. Inference: the arrival receives limited rhetorical emphasis."
    },
    "rotational_continuation": {
      "score": 4,
      "evidence_ids": ["E002", "E003", "E004", "E005", "E006", "E007", "E008", "E009", "E017", "E018", "E019", "E020", "E021", "E022", "E023", "E024"],
      "reason": "Observed: numerous consecutive measures after the candidate closely reproduce the opening’s ordered melodic and accompanimental events. Inference: sustained rotational correspondence strongly favors recapitulatory continuation over development."
    }
  },
  "status_distribution": {
    "not_recapitulation": 0.02,
    "off_tonic_recapitulation": 0.15,
    "tonic_double_return": 0.83
  },
  "suspected_recognition": {
    "level": "style",
    "confidence": 0.82
  },
  "case_note": "The exact, extended thematic rotation and ensuing D-major tonic realization strongly indicate recapitulation. The main ambiguity is whether the unharmonized anacrustic candidate onset satisfies a strict simultaneity requirement for tonic double return."
}
```

## Limitations

Missing evidence includes the complete score outside the supplied windows, instrumentation, audio, and performance realization. Although dynamics and articulations are complete within the encoding, none marks the candidate arrival. Analytical uncertainty chiefly concerns whether an unharmonized thematic pickup followed by tonic realization counts as a tonic double return at the designated onset, and how much weight to give its relatively early proportional position.