{"projection_revision":2,"snapshot":"8b6b1e15dce92b999d88acc3abf93713","catalog_version":22876,"snapshot_created_at":"2026-09-30T23:28:27+00:00","snapshot_expires_at":"2026-10-01T23:28:27+00:00","source_changed_at":"2026-09-30T23:25:03+00:00","freshness_behavior":"materialized on first request after a committed source change; database triggers cover row writes and relationship writes","source_id_sha256":"1917d0d56502e59611c8e843b56c3694ccc6c0b4277a41b41ee76d15b5aa4688","source_content_sha256":"e49c576951749cec8c02d1d7f170bf2256ed29c1ddb2a6a34d5f46b6e5645a5b","total_catalog_pieces":6464,"schema_version":"2.0","query":"","normalized_query":"","resolved_filters":{"piece_id":5262,"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/5262?page=1&piece_id=5262&projection=full&snapshot=8b6b1e15dce92b999d88acc3abf93713","json":"https://roadtovirtuosity.com/ai/catalog/pieces/5262.json?page=1&piece_id=5262&projection=full&snapshot=8b6b1e15dce92b999d88acc3abf93713","text":"https://roadtovirtuosity.com/ai/catalog/pieces/5262.txt?page=1&piece_id=5262&projection=full&snapshot=8b6b1e15dce92b999d88acc3abf93713"},"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":0,"distinct_work_count":null,"approximate_suggestions":[],"message":null,"pieces":[{"piece_id":5262,"title":"Johann Baptist Cramer - 50 Selected Studies (Bülow), No. 31","composer":["Cramer, Johann Baptist"],"composers":[{"id":269,"name":"Cramer, Johann Baptist"}],"instrument":["Piano"],"instruments":[{"id":1,"name":"Piano"}],"genre":"Classical","genre_id":1,"is_archive_only":false,"evaluation_eligible":true,"points":22702,"level":6,"canonical_url":"https://roadtovirtuosity.com/johann-baptist-cramer-50-selected-studies-bulow-no-31","instrument_points":[{"instrument_id":1,"instrument":"Piano","points":22702}],"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":"Public Domain","has_download":true,"download_availability_basis":"public license category and existing file reference; storage health not verified","description":"Rapid lower figures run beneath short upper notes and chords, moving between low and middle registers as the harmony changes. Upper trills prolong the line near the end (mm. 65–69), while the lower motion continues. The texture then fades into a short, quiet final chord (mm. 70–72).","created_at":"2026-09-16T20:12:40+00:00","first_published_at":"2026-09-16T20:13:47+00:00","published_at":"2026-09-16T20:13:47+00:00","updated_at":"2026-09-16T20:13:47+00:00","match_basis":"filters"}],"latest_catalog_version":22876,"source_lag_revisions":0}