{"projection_revision":2,"snapshot":"a9e8e3ab4970b504de79dbad74a89a7c","catalog_version":23641,"snapshot_created_at":"2026-10-01T16:48:10+00:00","snapshot_expires_at":"2026-10-02T16:48:10+00:00","source_changed_at":"2026-10-01T16:25:37+00:00","freshness_behavior":"materialized on first request after a committed source change; database triggers cover row writes and relationship writes","source_id_sha256":"1b4bb019333e197fd1ad55c95b4c8abbc434f95a8821250c4fac0ceb1ac5385c","source_content_sha256":"842b0fe2b12f2b71abe72c5b79c84c4816960e4854639d4d94caf67874ddc4f8","total_catalog_pieces":6582,"schema_version":"2.0","query":"","normalized_query":"","resolved_filters":{"piece_id":4306,"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/4306?page=1&piece_id=4306&projection=full&snapshot=a9e8e3ab4970b504de79dbad74a89a7c","json":"https://roadtovirtuosity.com/ai/catalog/pieces/4306.json?page=1&piece_id=4306&projection=full&snapshot=a9e8e3ab4970b504de79dbad74a89a7c","text":"https://roadtovirtuosity.com/ai/catalog/pieces/4306.txt?page=1&piece_id=4306&projection=full&snapshot=a9e8e3ab4970b504de79dbad74a89a7c"},"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":4306,"title":"Czerny - 25 Exercises for Small Hands - Op. 748, No. 3","composer":["Czerny, Carl"],"composers":[{"id":2,"name":"Czerny, Carl"}],"instrument":["Piano"],"instruments":[{"id":1,"name":"Piano"}],"genre":"Classical","genre_id":1,"is_archive_only":false,"evaluation_eligible":true,"points":68035,"level":7,"canonical_url":"https://roadtovirtuosity.com/czerny-25-exercises-for-small-hands-op-748-no-3","instrument_points":[{"instrument_id":1,"instrument":"Piano","points":68035}],"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":"Measures 1–15 combine shared triplet figures with right-hand runs above left-hand chords. Measures 16–23 place an ornamented upper melody over broken chords, followed by renewed shared motion in measures 24–27. The second repeated section begins in measure 28 with running figures and upper replies. The lyrical texture returns in measure 41 before shared runs and detached chords bring the D-major study to a close.","created_at":"2026-09-11T17:11:09+00:00","first_published_at":null,"published_at":null,"updated_at":"2026-09-11T17:11:13+00:00","match_basis":"filters"}],"latest_catalog_version":23641,"source_lag_revisions":0}