{"projection_revision":6,"snapshot":"848f9d10e0d70bd3f771f2e01a0e832d","catalog_version":33152,"snapshot_created_at":"2026-10-21T00:17:10+00:00","snapshot_expires_at":"2026-10-22T00:17:10+00:00","source_changed_at":"2026-10-21T00:14:16+00:00","freshness_behavior":"materialized on first request after a committed source change; database triggers cover row writes and relationship writes","source_id_sha256":"4600cc647b64cb8a3cf36dc9ef5686a0eb6b46f23530b5ddfc15028facf99f6c","source_content_sha256":"493b8dd2f169975113751fad00bbe69ef7b9e893d7c6d6f48374847be218a12b","total_catalog_pieces":8262,"canonical_url":"https://roadtovirtuosity.com/ai/catalog?composer_id=1","schema_version":"2.0","query":"","normalized_query":"","resolved_filters":{"composer_id":1,"timezone":"UTC"},"sort":"relevance","projection":"compact","total_matches":13,"returned":13,"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?composer_id=1&page=1&snapshot=848f9d10e0d70bd3f771f2e01a0e832d","json":"https://roadtovirtuosity.com/ai/catalog.json?composer_id=1&page=1&snapshot=848f9d10e0d70bd3f771f2e01a0e832d","text":"https://roadtovirtuosity.com/ai/catalog.txt?composer_id=1&page=1&snapshot=848f9d10e0d70bd3f771f2e01a0e832d"},"warnings":["Archive-only entries have unknown grading status. Zero points with Level 0 are pending. Positive points establish known grading, including beginner Level 0; explicit review declarations are preserved.","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":13,"distinct_work_count":null,"approximate_suggestions":[],"message":null,"pieces":[{"piece_id":2451,"title":"Berens - Dedication","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,"grading_status":"graded","grading_status_label":"Graded","points":1450,"level":3,"canonical_url":"https://roadtovirtuosity.com/berens-dedication","instrument_points":[{"instrument_id":1,"instrument":"Piano","points":1450}],"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","created_at":"2024-04-16T20:04:25+00:00","first_published_at":null,"published_at":null,"updated_at":"2026-06-17T20:19:16+00:00","match_basis":"filters"},{"piece_id":2629,"title":"Berens - Op. 70, No. 12","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,"grading_status":"graded","grading_status_label":"Graded","points":40,"level":0,"canonical_url":"https://roadtovirtuosity.com/berens-op-70-no-12","instrument_points":[{"instrument_id":1,"instrument":"Piano","points":40}],"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","created_at":"2024-05-08T11:39:00+00:00","first_published_at":null,"published_at":null,"updated_at":"2026-09-22T16:37:42+00:00","match_basis":"filters"},{"piece_id":34,"title":"Berens - Op. 70, No. 14","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,"grading_status":"graded","grading_status_label":"Graded","points":116,"level":1,"canonical_url":"https://roadtovirtuosity.com/berens-op-70-no-14","instrument_points":[{"instrument_id":1,"instrument":"Piano","points":116}],"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","created_at":"2023-07-28T06:30:32+00:00","first_published_at":null,"published_at":null,"updated_at":"2026-05-29T00:09:45+00:00","match_basis":"filters"},{"piece_id":3150,"title":"Berens - Op. 70, No. 15","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,"grading_status":"graded","grading_status_label":"Graded","points":160,"level":1,"canonical_url":"https://roadtovirtuosity.com/berens-op-70-no-15","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","created_at":"2024-07-01T19:57:19+00:00","first_published_at":null,"published_at":null,"updated_at":"2026-06-07T02:01:21+00:00","match_basis":"filters"},{"piece_id":3149,"title":"Berens - Op. 70, No. 23","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,"grading_status":"graded","grading_status_label":"Graded","points":154,"level":1,"canonical_url":"https://roadtovirtuosity.com/berens-op-70-no-23","instrument_points":[{"instrument_id":1,"instrument":"Piano","points":154}],"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","created_at":"2024-07-01T19:27:55+00:00","first_published_at":null,"published_at":null,"updated_at":"2026-09-22T16:37:10+00:00","match_basis":"filters"},{"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,"grading_status":"graded","grading_status_label":"Graded","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","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"},{"piece_id":2486,"title":"Berens - Op. 70, No. 34","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,"grading_status":"graded","grading_status_label":"Graded","points":1890,"level":3,"canonical_url":"https://roadtovirtuosity.com/berens-op-70-no-34","instrument_points":[{"instrument_id":1,"instrument":"Piano","points":1890}],"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","created_at":"2024-04-17T15:50:38+00:00","first_published_at":null,"published_at":null,"updated_at":"2026-06-06T15:39:53+00:00","match_basis":"filters"},{"piece_id":2449,"title":"Berens - Op. 70, No. 41","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,"grading_status":"graded","grading_status_label":"Graded","points":1405,"level":3,"canonical_url":"https://roadtovirtuosity.com/berens-op-70-no-41","instrument_points":[{"instrument_id":1,"instrument":"Piano","points":1405}],"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","created_at":"2024-04-16T20:00:57+00:00","first_published_at":null,"published_at":null,"updated_at":"2026-09-22T16:37:56+00:00","match_basis":"filters"},{"piece_id":2511,"title":"Berens - Op. 70, No. 43","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,"grading_status":"graded","grading_status_label":"Graded","points":2360,"level":3,"canonical_url":"https://roadtovirtuosity.com/berens-op-70-no-43","instrument_points":[{"instrument_id":1,"instrument":"Piano","points":2360}],"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","created_at":"2024-04-17T18:07:21+00:00","first_published_at":null,"published_at":null,"updated_at":"2026-09-22T16:37:49+00:00","match_basis":"filters"},{"piece_id":3046,"title":"Berens - Op. 70, No. 46","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,"grading_status":"graded","grading_status_label":"Graded","points":584,"level":2,"canonical_url":"https://roadtovirtuosity.com/berens-op-70-no-46","instrument_points":[{"instrument_id":1,"instrument":"Piano","points":584}],"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","created_at":"2024-06-24T20:50:43+00:00","first_published_at":null,"published_at":null,"updated_at":"2026-09-22T16:37:25+00:00","match_basis":"filters"},{"piece_id":2627,"title":"Berens - Op. 70, No. 5","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,"grading_status":"graded","grading_status_label":"Graded","points":30,"level":0,"canonical_url":"https://roadtovirtuosity.com/berens-op-70-no-5","instrument_points":[{"instrument_id":1,"instrument":"Piano","points":30}],"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","created_at":"2024-05-08T11:17:14+00:00","first_published_at":null,"published_at":null,"updated_at":"2026-06-07T04:45:01+00:00","match_basis":"filters"},{"piece_id":33,"title":"Berens - Op. 70, No. 8","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,"grading_status":"graded","grading_status_label":"Graded","points":68,"level":1,"canonical_url":"https://roadtovirtuosity.com/berens-op-70-no-8","instrument_points":[{"instrument_id":1,"instrument":"Piano","points":68}],"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","created_at":"2023-07-28T06:26:14+00:00","first_published_at":null,"published_at":null,"updated_at":"2026-06-19T20:14:05+00:00","match_basis":"filters"},{"piece_id":3126,"title":"Berens - Swedish Dance - Op. 70, No. 39","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,"grading_status":"graded","grading_status_label":"Graded","points":148,"level":1,"canonical_url":"https://roadtovirtuosity.com/berens-op-70-no-39-swedish-dance","instrument_points":[{"instrument_id":1,"instrument":"Piano","points":148}],"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","created_at":"2024-06-28T18:41:47+00:00","first_published_at":null,"published_at":null,"updated_at":"2026-09-22T16:37:18+00:00","match_basis":"filters"}],"latest_catalog_version":33152,"source_lag_revisions":0}