{"projection_revision":6,"snapshot":"82c25f5ddb0e09aa94687edb1289c298","catalog_version":34416,"snapshot_created_at":"2026-11-09T06:25:58+00:00","snapshot_expires_at":"2026-11-10T06:25:58+00:00","source_changed_at":"2026-11-08T06:24:27+00:00","freshness_behavior":"materialized on first request after a committed source change; database triggers cover row writes and relationship writes","source_id_sha256":"a9e889230510c868673217b079531944423e039746c66b74a06d735747f5c244","source_content_sha256":"5d6a81bd52debfb6c534d5e6ed37ced91522fa0356da34124fee647894faa8bb","total_catalog_pieces":8368,"canonical_url":"https://roadtovirtuosity.com/ai/catalog/collections","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=82c25f5ddb0e09aa94687edb1289c298","next_page_url":null,"end_of_results":true,"alternate_formats":{"html":"https://roadtovirtuosity.com/ai/catalog/collections?page=3&snapshot=82c25f5ddb0e09aa94687edb1289c298","json":"https://roadtovirtuosity.com/ai/catalog/collections.json?page=3&snapshot=82c25f5ddb0e09aa94687edb1289c298","text":"https://roadtovirtuosity.com/ai/catalog/collections.txt?page=3&snapshot=82c25f5ddb0e09aa94687edb1289c298"},"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":4356,"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","completeness":"unknown"},{"id":"187","name":"Level 4 - BigTime Kid's Songs","count":12,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=187","completeness":"unknown"},{"id":"139","name":"Level 4 - Lesson","count":19,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=139","completeness":"unknown"},{"id":"140","name":"Level 4 - Performance","count":14,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=140","completeness":"unknown"},{"id":"263","name":"Level 5 - AdvanceTime Christmas","count":11,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=263","completeness":"unknown"},{"id":"141","name":"Level 5 - Lesson","count":21,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=141","completeness":"unknown"},{"id":"142","name":"Level 5 - Performance","count":12,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=142","completeness":"unknown"},{"id":"110","name":"Pop","count":1,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=110","completeness":"unknown"},{"id":"120","name":"Primer - Gold Star Performance","count":17,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=120","completeness":"unknown"},{"id":"37","name":"Primer - Lesson","count":31,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=37","completeness":"unknown"},{"id":"36","name":"Primer - Performance","count":18,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=36","completeness":"unknown"},{"id":"35","name":"Primer - PreTime Christmas","count":9,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=35","completeness":"unknown"},{"id":"34","name":"Primer - PreTime Classics","count":9,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=34","completeness":"unknown"},{"id":"33","name":"Primer - PreTime Disney","count":9,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=33","completeness":"unknown"},{"id":"32","name":"Primer - PreTime Favorites","count":12,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=32","completeness":"unknown"},{"id":"31","name":"Primer - PreTime Hymns","count":10,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=31","completeness":"unknown"},{"id":"30","name":"Primer - PreTime Jazz and Blues","count":10,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=30","completeness":"unknown"},{"id":"29","name":"Primer - PreTime Kids Songs","count":9,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=29","completeness":"unknown"},{"id":"28","name":"Primer - PreTime Popular","count":10,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=28","completeness":"unknown"},{"id":"27","name":"Primer - PreTime Rock and Roll","count":9,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=27","completeness":"unknown"},{"id":"26","name":"Primer - Technique and Artistry","count":8,"catalog_url":"https://roadtovirtuosity.com/ai/catalog?collection_id=26","completeness":"unknown"}],"latest_catalog_version":34416,"source_lag_revisions":0}