# Identification probe result

Working only from the embedded dossier, I analyzed the four windows: a D major, 4/4, two-voice keyboard texture. The opening (E001–E004) presents a rising tonic-triad melody (D5–F#5–A5, then C#5 with a turn figure, B5–A5–D6) over a repeated eighth-note broken-chord bass (D–A–F#–A), followed by continuous sixteenth-note scalar runs exchanged between hands (E005–E008, E009–E014). The candidate window (W3) restates the opening theme on G (E015–E018), positioned partway through a repeated second part per the `candidate_return` metadata, consistent with a rounded-binary keyboard sonata.

These traits — two-voice galant texture, drum-bass accompaniment, virtuosic scale figuration, binary form with a subdominant-area thematic return — point strongly to a mid-18th-century single-movement keyboard sonata in the manner of Domenico Scarlatti, Soler, or an early Classical composer. However, the melodic material is generic within that repertoire, and nothing in the dossier (no distinctive harmonic fingerprint, catalogue-unique gesture, or verbal metadata) lets me distinguish one specific sonata from the hundreds of similar D major binary sonatas. I do not have a specific candidate I can support, so I am reporting a style-only identification.

## Run metadata

- Analyst model: claude-fable-5
- Case: CASE-VT57
- Access: dossier-only; no external lookup performed or claimed
- Date of run: 2026-07-19

## Machine-readable result

```json
{
  "schema_version": "2.1.0",
  "analyst_model": "claude-fable-5",
  "case_id": "CASE-VT57",
  "identification": {
    "recognition_level": "style_only",
    "composer": null,
    "work": null,
    "movement": null,
    "confidence": 0.2,
    "evidence_ids": ["E001", "E002", "E003", "E005", "E009", "E015", "E017"],
    "reason": "D major two-voice binary keyboard sonata: triadic opening over drum-bass eighths, continuous sixteenth runs, trill cadences, and a subdominant thematic return in the second part. Idiom matches Scarlatti/Soler-era galant sonatas, but no dossier feature uniquely distinguishes a specific catalogued work."
  }
}
```

## Limitations

The dossier omits tempo, instrument designation, and any text metadata, and the melodic/harmonic material is highly conventional for the galant binary-sonata repertoire, so many works share these features. My assessment rests on stylistic pattern-matching from symbolic data alone; I performed no external search. The style-only conclusion could be wrong in period or school, and a listener with the audio or a searchable incipit index might achieve a specific identification I cannot support here.
