RTV PUBLIC REPERTOIRE CATALOG Query: (all public entries) Filters: {"piece_id":4182,"timezone":"UTC"} Matches: 1 | Returned: 1 | Public catalog: 6582 Page 1 of 1 Next: none; end of results Previous: none Version: 23641 | Snapshot: a9e8e3ab4970b504de79dbad74a89a7c Created: 2026-10-01T16:48:10+00:00 | Source: 2026-10-01T16:25:37+00:00 | Expires: 2026-10-02T16:48:10+00:00 {"piece_id":4182,"title":"Mozart - Sonata No. 9 - K. 311 - First 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":181250,"level":8,"canonical_url":"https://roadtovirtuosity.com/mozart-sonata-no-9-k-311-first-movement","instrument_points":[{"instrument_id":1,"instrument":"Piano","points":181250}],"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 first movement of Mozart’s Sonata No. 9 in D major, K. 311, is an Allegro con spirito that combines bright chordal gestures with quick, neatly shaped passagework. A strong opening chord is followed by a rest and a rising-and-falling right-hand figure. Detached notes, sudden changes between forte and piano, and moving accompaniment patterns keep the music lively. The movement develops several of these ideas before bringing the opening theme back prominently on the final page.\r\nThe opening section alternates compact statements with more continuous motion. The right hand moves between running sixteenths, short trills, and separated melodic notes, while the left hand changes from held intervals to broken chords and regular eighth-note patterns. Accents draw attention to the start of the longer upper runs. A quieter secondary idea, marked dolce, then places a more relaxed melody above a steadily moving bass.\r\nThe closing part of the exposition gives both hands substantial passagework. The right hand first carries continuous sixteenths over widely spaced lower notes. The left hand then takes over the rapid motion, using repeated broken-chord patterns beneath a melody with dotted rhythms and ornaments. Brief emphatic chords interrupt this activity, followed by a softer passage of slurred double notes. The printed repeat returns to the beginning before the development starts.\r\nThe development initially draws on those paired, slurred gestures rather than immediately restating the opening tune. Chromatic changes alter the harmony, and the right hand begins quick figures that alternate between octave positions. Below them, the left hand sometimes supplies a moving melodic line and sometimes holds intervals. The rapid figures later move into the lower hand. A brief poco ritardando interrupts the flow before an a tempo marking restores the earlier pace.\r\nThe later pages build through long upper sequences, stronger dynamics, and renewed secondary material. Much of the closing texture again places an ornamented right-hand melody above continuous left-hand sixteenths. On the final page, the opening chord-and-run theme returns in the passage labeled coda. More running notes and accented chords follow, but the last gestures become quieter, with paired slurs and a compact final cadence.\r\nInteresting fact: In this score, the opening theme’s prominent late return is labeled as part of the coda. The secondary and closing ideas have already returned before this recognizable beginning reappears.\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":"2026-09-10T05:47:06+00:00","first_published_at":null,"published_at":null,"updated_at":"2026-09-10T05:47:44+00:00","match_basis":"filters"} Full response metadata (including counts, interpretation and alternate links): { "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": 4182, "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/4182?page=1&piece_id=4182&projection=full&snapshot=a9e8e3ab4970b504de79dbad74a89a7c", "json": "https://roadtovirtuosity.com/ai/catalog/pieces/4182.json?page=1&piece_id=4182&projection=full&snapshot=a9e8e3ab4970b504de79dbad74a89a7c", "text": "https://roadtovirtuosity.com/ai/catalog/pieces/4182.txt?page=1&piece_id=4182&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. 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