{"projection_revision":2,"snapshot":"001a4b42a02cf01e5fec0680df520fd8","catalog_version":22826,"snapshot_created_at":"2026-09-30T22:37:17+00:00","snapshot_expires_at":"2026-10-01T22:37:17+00:00","source_changed_at":"2026-09-30T22:36:46+00:00","freshness_behavior":"materialized on first request after a committed source change; database triggers cover row writes and relationship writes","source_id_sha256":"d6e644e9344acd150700e62c6633ba1ea7a7a28fec258c5138cd3bcb70cb92f9","source_content_sha256":"c4709033144f5910231205267703d9a7e009dbb8a69662354511a7a2efea0769","total_catalog_pieces":6454,"schema_version":"2.0","query":"","normalized_query":"","resolved_filters":{"piece_id":3151,"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/3151?page=1&piece_id=3151&projection=full&snapshot=001a4b42a02cf01e5fec0680df520fd8","json":"https://roadtovirtuosity.com/ai/catalog/pieces/3151.json?page=1&piece_id=3151&projection=full&snapshot=001a4b42a02cf01e5fec0680df520fd8","text":"https://roadtovirtuosity.com/ai/catalog/pieces/3151.txt?page=1&piece_id=3151&projection=full&snapshot=001a4b42a02cf01e5fec0680df520fd8"},"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":3151,"title":"Berens - Op. 70, No. 30","composer":["Berens, Hermann"],"composers":[{"id":1,"name":"Berens, Hermann"}],"instrument":["Piano"],"instruments":[{"id":1,"name":"Piano"}],"genre":"Romantic","genre_id":3,"is_archive_only":false,"evaluation_eligible":true,"points":160,"level":1,"canonical_url":"https://roadtovirtuosity.com/berens-op-70-no-30","instrument_points":[{"instrument_id":1,"instrument":"Piano","points":160}],"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":"Berens’s Op. 70, No. 30 is a compact waltz in C major, with a lightly ornamented melody above a regular three-part bass-and-chord pattern.                                                    Measures 1–4 introduce the recurring grace-note figure. A short chromatic turn around G is followed by a higher held note, and the two-measure idea immediately returns.Measures 5–8 shift the accompanying harmony while the melody answers with another chromatic figure and a descending line. A longer note and a rest bring the first phrase to a clear pause.Measures 9–12 recall the opening, preserving its small ornamental flick and upward leap. Measures 13–16 reshape the answer, replacing the earlier descent with a higher, slurred gesture before the final C-major close.Interesting fact: The historical score explicitly calls this piece a ‘Waltz,’ although its RTV title identifies it only by opus and number.","created_at":"2024-07-02T14:56:50+00:00","first_published_at":null,"published_at":null,"updated_at":"2026-09-22T16:36:30+00:00","match_basis":"filters"}],"latest_catalog_version":22826,"source_lag_revisions":0}