{"projection_revision":2,"snapshot":"b74778db4eb86886bf2a2888634fb96c","catalog_version":23356,"snapshot_created_at":"2026-10-01T10:50:41+00:00","snapshot_expires_at":"2026-10-02T10:50:41+00:00","source_changed_at":"2026-10-01T10:49:28+00:00","freshness_behavior":"materialized on first request after a committed source change; database triggers cover row writes and relationship writes","source_id_sha256":"5c248e39144e07fbe53310a1468b220806b0062f8345033a16ab0720c793cc1e","source_content_sha256":"94e11b0636bb192bc29575e96afc0a2f9a1ddfd7b00fd2baebb41c656e61a37c","total_catalog_pieces":6525,"schema_version":"2.0","query":"","normalized_query":"","resolved_filters":{"piece_id":4186,"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/4186?page=1&piece_id=4186&projection=full&snapshot=b74778db4eb86886bf2a2888634fb96c","json":"https://roadtovirtuosity.com/ai/catalog/pieces/4186.json?page=1&piece_id=4186&projection=full&snapshot=b74778db4eb86886bf2a2888634fb96c","text":"https://roadtovirtuosity.com/ai/catalog/pieces/4186.txt?page=1&piece_id=4186&projection=full&snapshot=b74778db4eb86886bf2a2888634fb96c"},"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":4186,"title":"Mozart - Sonata No. 10 - K. 330 - Second Movement","composer":["Mozart, Wolfgang Amadeus"],"composers":[{"id":17,"name":"Mozart, Wolfgang Amadeus"}],"instrument":["Piano"],"instruments":[{"id":1,"name":"Piano"}],"genre":"Classical","genre_id":1,"is_archive_only":false,"evaluation_eligible":true,"points":52250,"level":7,"canonical_url":"https://roadtovirtuosity.com/mozart-sonata-no-10-k-330-second-movement","instrument_points":[{"instrument_id":1,"instrument":"Piano","points":52250}],"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":"The Andante cantabile from Mozart’s Sonata No. 10 in C major, K. 330, is a quiet F-major movement with a contrasting F-minor middle section. A short pickup leads into a singing right-hand melody, supported by chords, held inner notes, and a bass line that moves independently beneath it. Turns and small decorative figures enrich the tune without making it continuously busy. The opening material returns after the minor-key contrast, followed by a gentle closing passage.\r\nThe first section combines a turn in the upper melody with descending eighth notes and small answering gestures. Some notes remain held while another voice moves around them, and the bass occasionally enters away from the main beat. Short slurs, accents, and changes between softer and stronger dynamics shape the phrases. The opening portion repeats, then continues into a second passage with a wider melodic range, chromatic notes, and more active exchanges between the hands. This passage also has a repeat.\r\nThe middle section changes to a four-flat key signature and an F-minor sound. Its opening melody uses short, low chordal gestures followed by longer dotted notes. The left hand introduces repeated sixteenths, creating a persistent pulse beneath the more sustained upper part. Stronger chordal responses and quiet answers interrupt that texture. Both parts of this contrasting section are repeated before a short closing passage prepares the return.\r\nWhen F major comes back, the principal melody is written out again, with familiar turns and descending shapes. The continuation includes altered decoration and small changes in the accompaniment. The last passage recalls the repeated-note texture heard in the middle section, now underneath major-key chords. The dynamics remain quiet, and the movement ends with a simple pianissimo cadence.\r\nInteresting fact: The repeated-note accompaniment does not belong only to the F-minor middle section. It returns near the end under F-major harmony, connecting the movement’s contrasting sounds within the quiet close.\r\nHow to earn points for this piece:Download or purchase the sheet music.Practice the piece carefully. Watch the video example to make sure you are accurate.Record yourself on video and upload it to YouTube. Perfection is not required. A few minor mistakes are okay.Submit a link to your video here for evaluation. We will watch your performance and give you feedback. If you need more practice, we will let you know what to work on and provide additional practice suggestions. You may also submit your video publicly so other users can evaluate it.If your performance is approved, your video will be accepted and you can collect your points.","created_at":"2026-09-10T06:12:02+00:00","first_published_at":null,"published_at":null,"updated_at":"2026-09-10T06:13:06+00:00","match_basis":"filters"}],"latest_catalog_version":23356,"source_lag_revisions":0}