{"projection_revision":2,"snapshot":"53e6b73f0c55a7cb1d31aaf9099f6c1d","catalog_version":22776,"snapshot_created_at":"2026-09-30T22:02:12+00:00","snapshot_expires_at":"2026-10-01T22:02:12+00:00","source_changed_at":"2026-09-30T22:01:48+00:00","freshness_behavior":"materialized on first request after a committed source change; database triggers cover row writes and relationship writes","source_id_sha256":"9088801b53e3818f53c9d8fcd70e4f7a5f2a13bce14f8a9272471ea62995edfb","source_content_sha256":"48eaa3e506d717971a4e8ee99bde37fd5e66f47baf5aba99a97d9a6aab643d78","total_catalog_pieces":6444,"schema_version":"2.0","query":"","normalized_query":"","resolved_filters":{"piece_id":2398,"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/2398?page=1&piece_id=2398&projection=full&snapshot=53e6b73f0c55a7cb1d31aaf9099f6c1d","json":"https://roadtovirtuosity.com/ai/catalog/pieces/2398.json?page=1&piece_id=2398&projection=full&snapshot=53e6b73f0c55a7cb1d31aaf9099f6c1d","text":"https://roadtovirtuosity.com/ai/catalog/pieces/2398.txt?page=1&piece_id=2398&projection=full&snapshot=53e6b73f0c55a7cb1d31aaf9099f6c1d"},"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,"pieces":[{"piece_id":2398,"title":"Duvernoy - Op. 176, No. 15","composer":["Duvernoy, Jean-Baptiste"],"composers":[{"id":81,"name":"Duvernoy, Jean-Baptiste"}],"instrument":["Piano"],"instruments":[{"id":1,"name":"Piano"}],"genre":"Romantic","genre_id":3,"is_archive_only":false,"evaluation_eligible":true,"points":4964,"level":4,"canonical_url":"https://roadtovirtuosity.com/duvernoy-op-176-no-15","instrument_points":[{"instrument_id":1,"instrument":"Piano","points":4964}],"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":"This A-major Andantino sets a calm quarter-note melody over a continuously shifting eighth-note accompaniment. Its middle section gives the upper voice a more animated role before the opening returns.\r\nMeasures 1–8 introduce rising and falling melodic arches, with a short chromatic turn at the end of the first phrase. The lower line alternates widely spaced notes and briefly pauses at the cadences.\r\nMeasures 9–16 increase the melodic activity. Eighth-note figures move into the upper voice, stronger dynamics broaden the phrase, and chromatic notes lead back toward the opening.\r\nMeasures 17–24 recall the initial melody and accompaniment. The final phrase descends into a compact cadence followed by a shared rest.\r\nInteresting fact: In the middle section, the hands briefly exchange rhythmic roles: the melody moves in eighth notes while the accompaniment slows to quarter notes.","created_at":"2024-04-09T16:03:04+00:00","first_published_at":null,"published_at":null,"updated_at":"2026-09-22T17:59:05+00:00","match_basis":"filters"}],"latest_catalog_version":22776,"source_lag_revisions":0}