{"projection_revision":2,"snapshot":"652b209e8a4c0fc1ece71e35299ddeda","catalog_version":22556,"snapshot_created_at":"2026-09-30T18:38:17+00:00","snapshot_expires_at":"2026-10-01T18:38:17+00:00","source_changed_at":"2026-09-30T18:33:14+00:00","freshness_behavior":"materialized on first request after a committed source change; database triggers cover row writes and relationship writes","source_id_sha256":"bd560689c31ffbc39f07e91b59c0f3209111e83c8f8f7c7961ed12b50477f852","source_content_sha256":"8ef34e7e97559494dcbfdfeb20bf6e77199a1520f7f34341d3035daea7353d95","total_catalog_pieces":6404,"schema_version":"2.0","query":"","normalized_query":"","resolved_filters":{"timezone":"UTC"},"sort":"relevance","projection":"compact","total_matches":121,"returned":21,"page":3,"per_page":50,"total_pages":3,"previous_page_url":"https://roadtovirtuosity.com/ai/catalog/collections.json?page=2&snapshot=652b209e8a4c0fc1ece71e35299ddeda","next_page_url":null,"end_of_results":true,"alternate_formats":{"html":"https://roadtovirtuosity.com/ai/catalog/collections?page=3&snapshot=652b209e8a4c0fc1ece71e35299ddeda","json":"https://roadtovirtuosity.com/ai/catalog/collections.json?page=3&snapshot=652b209e8a4c0fc1ece71e35299ddeda","text":"https://roadtovirtuosity.com/ai/catalog/collections.txt?page=3&snapshot=652b209e8a4c0fc1ece71e35299ddeda"},"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.","A newer source revision exists. This response preserves the requested/captured snapshot; restart without snapshot for the latest available catalog."],"publication_count_scope":"currently public entries first published during the requested interval","unknown_publication_dates_before_date_filter":4357,"distinct_work_count":null,"approximate_suggestions":[],"message":null,"collections":[{"id":"188","name":"Level 4 - BigTime Hits","count":12,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=188&snapshot=652b209e8a4c0fc1ece71e35299ddeda","completeness":"unknown"},{"id":"187","name":"Level 4 - BigTime Kid's Songs","count":12,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=187&snapshot=652b209e8a4c0fc1ece71e35299ddeda","completeness":"unknown"},{"id":"139","name":"Level 4 - Lesson","count":19,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=139&snapshot=652b209e8a4c0fc1ece71e35299ddeda","completeness":"unknown"},{"id":"140","name":"Level 4 - Performance","count":14,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=140&snapshot=652b209e8a4c0fc1ece71e35299ddeda","completeness":"unknown"},{"id":"263","name":"Level 5 - AdvanceTime Christmas","count":11,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=263&snapshot=652b209e8a4c0fc1ece71e35299ddeda","completeness":"unknown"},{"id":"141","name":"Level 5 - Lesson","count":21,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=141&snapshot=652b209e8a4c0fc1ece71e35299ddeda","completeness":"unknown"},{"id":"142","name":"Level 5 - Performance","count":12,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=142&snapshot=652b209e8a4c0fc1ece71e35299ddeda","completeness":"unknown"},{"id":"110","name":"Pop","count":1,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=110&snapshot=652b209e8a4c0fc1ece71e35299ddeda","completeness":"unknown"},{"id":"120","name":"Primer - Gold Star Performance","count":17,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=120&snapshot=652b209e8a4c0fc1ece71e35299ddeda","completeness":"unknown"},{"id":"37","name":"Primer - Lesson","count":31,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=37&snapshot=652b209e8a4c0fc1ece71e35299ddeda","completeness":"unknown"},{"id":"36","name":"Primer - Performance","count":18,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=36&snapshot=652b209e8a4c0fc1ece71e35299ddeda","completeness":"unknown"},{"id":"35","name":"Primer - PreTime Christmas","count":9,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=35&snapshot=652b209e8a4c0fc1ece71e35299ddeda","completeness":"unknown"},{"id":"34","name":"Primer - PreTime Classics","count":9,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=34&snapshot=652b209e8a4c0fc1ece71e35299ddeda","completeness":"unknown"},{"id":"33","name":"Primer - PreTime Disney","count":9,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=33&snapshot=652b209e8a4c0fc1ece71e35299ddeda","completeness":"unknown"},{"id":"32","name":"Primer - PreTime Favorites","count":12,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=32&snapshot=652b209e8a4c0fc1ece71e35299ddeda","completeness":"unknown"},{"id":"31","name":"Primer - PreTime Hymns","count":10,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=31&snapshot=652b209e8a4c0fc1ece71e35299ddeda","completeness":"unknown"},{"id":"30","name":"Primer - PreTime Jazz and Blues","count":10,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=30&snapshot=652b209e8a4c0fc1ece71e35299ddeda","completeness":"unknown"},{"id":"29","name":"Primer - PreTime Kids Songs","count":9,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=29&snapshot=652b209e8a4c0fc1ece71e35299ddeda","completeness":"unknown"},{"id":"28","name":"Primer - PreTime Popular","count":10,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=28&snapshot=652b209e8a4c0fc1ece71e35299ddeda","completeness":"unknown"},{"id":"27","name":"Primer - PreTime Rock and Roll","count":9,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=27&snapshot=652b209e8a4c0fc1ece71e35299ddeda","completeness":"unknown"},{"id":"26","name":"Primer - Technique and Artistry","count":8,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=26&snapshot=652b209e8a4c0fc1ece71e35299ddeda","completeness":"unknown"}],"latest_catalog_version":22776,"source_lag_revisions":220}