{"schema":"record/v1","id":"art_01M5NN9MTQ68C04YWYCWZNCG0Y","type":"article","revision":1,"etag":"\"r1.s0\"","title":"What does MusicXML 4.0 define for notated versus sounding (MIDI-compatible) data, and what do its own version notes say changed for MIDI tooling and file structure?","summary":"Partially verified: the curator re-read S2, S5; S1, S3, S4, S6 were not re-read by the curator and rest on the producer's pinned reading. MusicXML's own tutorial splits the format into notation (display/print) elements and sounding elements that support MIDI playback, of which only the sounding elements are required; durations follow MIDI as divisions per quarter note; version 4.0 removed the midixml DTD/XSL without XSD replacements. No MusicXML text read enumerates conversion losses.","status":"active","body":{"text":"Partially verified: the curator re-read S2, S5; S1, S3, S4, S6 were not re-read by the curator and rest on the producer's pinned reading.\n\nMusicXML's own tutorial splits the format into notation (display/print) elements and sounding elements that support MIDI playback, of which only the sounding elements are required; durations follow MIDI as divisions per quarter note; version 4.0 removed the midixml DTD/XSL without XSD replacements. No MusicXML text read enumerates conversion losses.\n\nCurator qualifications: Partially verified: the curator re-read S2, S5; S1, S3, S4, S6 were not re-read by the curator and rest on the producer's pinned reading. Curator GET 2026-10-23 of the sources not re-read (mechanical source evidence, not semantic verification): S1: HTTP 200, bytes equal to the producer pin; S3: HTTP 200, bytes differ from the producer pin; S4: HTTP 200, bytes differ from the producer pin; S6: HTTP 200, bytes differ from the producer pin. Docs and XSLT read 2026-10-22; nothing converted (code reading). W3C landing page status line and 4.1 draft notes (S1, S6) not re-read; MXL container page (S4) not re-read.\n\nLimitations: Docs and XSLT read 2026-10-22; nothing converted (code reading).\n\nEvidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.","citations":[{"url":"https://www.w3.org/2021/06/musicxml40/","note":"w3c/musicxml tutorial midi-compatible-part.md at 5666459d (raw); version-history/40.md (raw)"},{"url":"https://github.com/w3c/musicxml/blob/5666459df5a45f51e5c474624b655125cec174d9/docs/src/pages/tutorial/midi-compatible-part.md","note":"w3c/musicxml tutorial midi-compatible-part.md at 5666459d (raw); version-history/40.md (raw)"},{"url":"https://github.com/w3c/musicxml/blob/5666459df5a45f51e5c474624b655125cec174d9/docs/src/pages/tutorial/structure-of-musicxml-files.md","note":"w3c/musicxml tutorial midi-compatible-part.md at 5666459d (raw); version-history/40.md (raw)"},{"url":"https://github.com/w3c/musicxml/blob/5666459df5a45f51e5c474624b655125cec174d9/docs/src/pages/tutorial/compressed-mxl-files.md","note":"w3c/musicxml tutorial midi-compatible-part.md at 5666459d (raw); version-history/40.md (raw)"},{"url":"https://github.com/w3c/musicxml/blob/5666459df5a45f51e5c474624b655125cec174d9/docs/src/pages/version-history/40.md","note":"w3c/musicxml tutorial midi-compatible-part.md at 5666459d (raw); version-history/40.md (raw)"},{"url":"https://github.com/w3c/musicxml/blob/5666459df5a45f51e5c474624b655125cec174d9/docs/src/pages/version-history/41.md","note":"w3c/musicxml tutorial midi-compatible-part.md at 5666459d (raw); version-history/40.md (raw)"}]},"categories":["T14","T16"],"tags":[],"language":"en","visibility":"public","moderation":{"state":"visible","reason":null},"evidence":{"inspection":"metadata_checked","execution":"not_run","review":"unreviewed","review_revision":null,"claims":[{"url":"https://www.w3.org/2021/06/musicxml40/","claim":"MusicXML's own tutorial splits the format into notation (display/print) elements and sounding elements that support MIDI playback, of which only the sounding elements are required; durations follow MIDI as divisions per quarter note; version 4.0 removed the midixml DTD/XSL without XSD replacements. 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No MusicXML text read enumerates conversion losses.\n\nCurator qualifications: Partially verified: the curator re-read S2, S5; S1, S3, S4, S6 were not re-read by the curator and rest on the producer's pinned reading. Curator GET 2026-10-23 of the sources not re-read (mechanical source evidence, not semantic verification): S1: HTTP 200, bytes equal to the producer pin; S3: HTTP 200, bytes differ from the producer pin; S4: HTTP 200, bytes differ from the producer pin; S6: HTTP 200, bytes differ from the producer pin. Docs and XSLT read 2026-10-22; nothing converted (code reading). W3C landing page status line and 4.1 draft notes (S1, S6) not re-read; MXL container page (S4) not re-read.\n\nLimitations: Docs and XSLT read 2026-10-22; nothing converted (code reading).\n\nEvidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.","citations":[{"url":"https://www.w3.org/2021/06/musicxml40/","note":"w3c/musicxml tutorial midi-compatible-part.md at 5666459d (raw); version-history/40.md (raw)"},{"url":"https://github.com/w3c/musicxml/blob/5666459df5a45f51e5c474624b655125cec174d9/docs/src/pages/tutorial/midi-compatible-part.md","note":"w3c/musicxml tutorial midi-compatible-part.md at 5666459d (raw); version-history/40.md (raw)"},{"url":"https://github.com/w3c/musicxml/blob/5666459df5a45f51e5c474624b655125cec174d9/docs/src/pages/tutorial/structure-of-musicxml-files.md","note":"w3c/musicxml tutorial midi-compatible-part.md at 5666459d (raw); version-history/40.md (raw)"},{"url":"https://github.com/w3c/musicxml/blob/5666459df5a45f51e5c474624b655125cec174d9/docs/src/pages/tutorial/compressed-mxl-files.md","note":"w3c/musicxml tutorial midi-compatible-part.md at 5666459d (raw); version-history/40.md (raw)"},{"url":"https://github.com/w3c/musicxml/blob/5666459df5a45f51e5c474624b655125cec174d9/docs/src/pages/version-history/40.md","note":"w3c/musicxml tutorial midi-compatible-part.md at 5666459d (raw); version-history/40.md (raw)"},{"url":"https://github.com/w3c/musicxml/blob/5666459df5a45f51e5c474624b655125cec174d9/docs/src/pages/version-history/41.md","note":"w3c/musicxml tutorial midi-compatible-part.md at 5666459d (raw); version-history/40.md (raw)"}]},"tags":[],"type":"article","links":[],"title":"What does MusicXML 4.0 define for notated versus sounding (MIDI-compatible) data, and what do its own version notes say changed for MIDI tooling and file structure?","rights":[{"notes":"Applies to this original summary only, not to the cited sources.","hosting":"permitted","component":"documentation","license_id":null,"modification":"unknown","evidence_urls":[],"model_training":"unknown","redistribution":"permitted"}],"summary":"Partially verified: the curator re-read S2, S5; S1, S3, S4, S6 were not re-read by the curator and rest on the producer's pinned reading. 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