RTV PUBLIC REPERTOIRE CATALOG Query: (all public entries) Filters: {"piece_id":2559,"timezone":"UTC"} Matches: 1 | Returned: 1 | Public catalog: 6444 Page 1 of 1 Next: none; end of results Previous: none Version: 22776 | Snapshot: 53e6b73f0c55a7cb1d31aaf9099f6c1d Created: 2026-09-30T22:02:12+00:00 | Source: 2026-09-30T22:01:48+00:00 | Expires: 2026-10-01T22:02:12+00:00 {"piece_id":2559,"title":"Bach - Invention No. 6 - BWV 777","composer":["Bach, Johann Sebastian"],"composers":[{"id":105,"name":"Bach, Johann Sebastian"}],"instrument":["Piano"],"instruments":[{"id":1,"name":"Piano"}],"genre":"Baroque","genre_id":2,"is_archive_only":false,"evaluation_eligible":true,"points":125780,"level":7,"canonical_url":"https://roadtovirtuosity.com/bach-15-inventions-no-6-bwv-777","instrument_points":[{"instrument_id":1,"instrument":"Piano","points":125780}],"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":"Bach’s E-major Invention combines a descending, syncopated melody with a steadily rising counterline. Its small three-beat measures contain a delicate interplay of tied notes, short rests, and quick ornamental figures.\r\nThe first repeated section exchanges the two opening ideas between the voices and develops them through sequences. The second section begins with their roles reversed, then expands into more chromatic passages and longer runs. The opening contours become recognizable again near the close, with the two lines converging on a firm E-major cadence.\r\nAn interesting detail is its repeated two-part design: both large sections have repeat marks, giving the opening ideas a second hearing within each half.","created_at":"2024-04-29T16:54:26+00:00","first_published_at":null,"published_at":null,"updated_at":"2026-09-23T06:21:24+00:00","match_basis":"filters"} Full response metadata (including counts, interpretation and alternate links): { "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": 2559, "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/2559?page=1&piece_id=2559&projection=full&snapshot=53e6b73f0c55a7cb1d31aaf9099f6c1d", "json": "https://roadtovirtuosity.com/ai/catalog/pieces/2559.json?page=1&piece_id=2559&projection=full&snapshot=53e6b73f0c55a7cb1d31aaf9099f6c1d", "text": "https://roadtovirtuosity.com/ai/catalog/pieces/2559.txt?page=1&piece_id=2559&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, "latest_catalog_version": 22776, "source_lag_revisions": 0 }