RTV PUBLIC REPERTOIRE CATALOG
Query: (all public entries)
Filters: {"piece_id":4160,"timezone":"UTC"}
Matches: 1 | Returned: 1 | Public catalog: 6538
Page 1 of 1
Next: none; end of results
Previous: none
Version: 23421 | Snapshot: 0a06eecc1e1a4b0e9222f236a8163f3b
Created: 2026-10-01T13:45:05+00:00 | Source: 2026-10-01T13:26:31+00:00 | Expires: 2026-10-02T13:45:05+00:00


{"piece_id":4160,"title":"Mozart - Sonata No. 1 - K. 279 - Third Movement","composer":["Mozart, Wolfgang Amadeus"],"composers":[{"id":17,"name":"Mozart, Wolfgang Amadeus"}],"instrument":["Piano"],"instruments":[{"id":1,"name":"Piano"}],"genre":"Classical","genre_id":1,"is_archive_only":false,"evaluation_eligible":true,"points":95875,"level":7,"canonical_url":"https://roadtovirtuosity.com/mozart-sonata-no-1-k-279-third-movement","instrument_points":[{"instrument_id":1,"instrument":"Piano","points":95875}],"collections":[],"collection_semantics":"existing catalog subcategory grouping","work_identifiers":[],"work_id":null,"book":null,"sequence_position":null,"movement_number":null,"movement_title":null,"key":null,"arrangement":null,"edition":null,"entry_scope":null,"completeness":"unknown","reviewed_enrichment":false,"availability_label":"Non-Commercial","has_download":true,"download_availability_basis":"public license category and existing file reference; storage health not verified","description":"The finale of Mozart’s Sonata No. 1, K. 279, is a bright Allegro in C major and two-quarter time. Its opening contrasts a spare upper melody with short left-hand chords, then quickly unfolds into running sixteenth notes. The hands frequently exchange roles, and rests leave small gaps between the phrases. A repeated opening section, a compact development, and a return of the main themes give the movement a clear overall shape.\r\nOpening theme: A single pickup note leads to sustained upper notes over a light chordal accompaniment. A quick run interrupts this simple outline, and the melody moves into shorter, more active figures. The lower hand supplies both individual bass notes and brief chords. As the passage grows stronger, the hands share rising patterns before the right hand continues alone over a more widely spaced accompaniment.\r\nContrasting theme and closing section: A quieter theme uses repeated notes and short slurs, with rests making the exchanges easy to hear. The left hand sometimes holds a bass note under a moving inner figure; elsewhere it takes over the sixteenth-note motion while the right hand plays separated notes above. Small ornaments decorate several arrivals. The closing passage moves through short rising and falling figures before reaching a cadence and repeat sign.\r\nDevelopment: The middle section reshapes the repeated-note idea in changing harmonies. The upper hand pauses while the lower part continues, then both hands join in more active exchanges. Accents, altered notes, and shifts of register sharpen the contrast with the opening. A brief held pause interrupts the motion before familiar sustained notes and descending runs prepare the main theme’s return.\r\nReturn and ending: The opening material comes back with its light accompaniment and running figures. The contrasting theme follows, again alternating held notes, short responses, and active inner parts. On the final page, the hands trade little gestures across different registers. The closing passage gathers energy through ascending figures and brief trills, then ends with two emphatic chords separated from the preceding run.\r\nInteresting fact: The finale begins with only one short note in the right hand; the left hand waits until the first full measure to enter.","created_at":"2026-09-10T03:30:08+00:00","first_published_at":null,"published_at":null,"updated_at":"2026-09-12T21:03:13+00:00","match_basis":"filters"}

Full response metadata (including counts, interpretation and alternate links):
{
    "projection_revision": 2,
    "snapshot": "0a06eecc1e1a4b0e9222f236a8163f3b",
    "catalog_version": 23421,
    "snapshot_created_at": "2026-10-01T13:45:05+00:00",
    "snapshot_expires_at": "2026-10-02T13:45:05+00:00",
    "source_changed_at": "2026-10-01T13:26:31+00:00",
    "freshness_behavior": "materialized on first request after a committed source change; database triggers cover row writes and relationship writes",
    "source_id_sha256": "310248ac5074e79b967da03a1077e412056def1f59158a5cd817cfec089ab483",
    "source_content_sha256": "b731541739216c60b229d1181a7d55adb091e4bf1391ec157005009531cca764",
    "total_catalog_pieces": 6538,
    "schema_version": "2.0",
    "query": "",
    "normalized_query": "",
    "resolved_filters": {
        "piece_id": 4160,
        "timezone": "UTC"
    },
    "sort": "relevance",
    "projection": "full",
    "total_matches": 1,
    "returned": 1,
    "page": 1,
    "per_page": 50,
    "total_pages": 1,
    "previous_page_url": null,
    "next_page_url": null,
    "end_of_results": true,
    "alternate_formats": {
        "html": "https://roadtovirtuosity.com/ai/catalog/pieces/4160?page=1&piece_id=4160&projection=full&snapshot=0a06eecc1e1a4b0e9222f236a8163f3b",
        "json": "https://roadtovirtuosity.com/ai/catalog/pieces/4160.json?page=1&piece_id=4160&projection=full&snapshot=0a06eecc1e1a4b0e9222f236a8163f3b",
        "text": "https://roadtovirtuosity.com/ai/catalog/pieces/4160.txt?page=1&piece_id=4160&projection=full&snapshot=0a06eecc1e1a4b0e9222f236a8163f3b"
    },
    "warnings": [
        "Strict taxonomy filters exclude unattributed records; search title text separately before deciding something is missing.",
        "Work identity, musical sequence and completeness are unknown unless reviewed metadata is supplied. Catalog collections are existing subcategory groupings.",
        "Historical first-publication dates are unknown. Date counts include only currently public entries with known first-publication dates.",
        "File availability reports a public file reference, not a storage-health check."
    ],
    "publication_count_scope": "currently public entries first published during the requested interval",
    "unknown_publication_dates_before_date_filter": 1,
    "distinct_work_count": null,
    "approximate_suggestions": [],
    "message": null,
    "latest_catalog_version": 23421,
    "source_lag_revisions": 0
}