{
 "slug": "organum-alleluya-nativitas",
 "title": "Alleluya nativitas",
 "titleNote": "The edition's score is headed 'Organum, Alleluya (Nativitas)'; its metadata.yaml gives 'Alleluya nativitas'.",
 "workWikidata": null,
 "composer": {
  "name": "Pérotin",
  "wikidata": "Q206275",
  "statedBy": "edition: score header 'Perotin (12th c.)' and metadata.yaml 'Perotin'."
 },
 "voices": 3,
 "voiceNames": [
  "cantus",
  "altus",
  "tenor"
 ],
 "voiceNamesNote": "Names of the LilyPond staff contexts in the edition; they are not printed in the edition's score.",
 "genre": "organum",
 "genreNote": "The edition's metadata.yaml tags it 'melismatic_organum'; its score heading calls it 'Organum'.",
 "language": "Latin",
 "languageNote": null,
 "editor": {
  "name": "Monique Rio",
  "publisher": "St Cecilia Press",
  "editionDate": "20-Jun-2016",
  "url": "https://stcpress.org/"
 },
 "sourceLicence": {
  "label": "CC BY 4.0",
  "url": "https://creativecommons.org/licenses/by/4.0/",
  "evidence": [
   "https://stcpress.org/about (retrieved 2026-10-21): \"Monique's transcriptions are done in Lilypond, and may be used with attribution. (CC By 4.0)\"",
   "Footer of the edition's PDF score: \"© Monique Rio (CC BY 4.0)\"",
   "Footer markup of the edition's score.ly: \"© Monique Rio (CC BY 4.0)\""
  ],
  "notes": "On the about page the badge next to this sentence links to the CC BY-SA 4.0 deed (the two badges on the page appear swapped). The GitHub repository has no LICENSE file."
 },
 "encodingLicence": {
  "label": "CC BY-SA 4.0",
  "url": "https://creativecommons.org/licenses/by-sa/4.0/",
  "statement": "This MEI file is a mechanical conversion of Monique Rio's edition (St Cecilia Press, https://stcpress.org), which is licensed CC BY 4.0 according to the publisher's statement and the edition's own score footer. Because the licence badge on the publisher's page links to CC BY-SA 4.0, the conversion is released under CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0/), which satisfies either reading. Attribution: edition by Monique Rio, St Cecilia Press; MEI conversion by Motetus (AEM Ventures SRL). Changes: converted from LilyPond to MEI 5.1; see the encodingDesc and revisionDesc."
 },
 "originalFormat": "LilyPond 2.18 source (organum_alleluya.ly) using the St Cecilia Press score template (score.ly); the edition's PDF score and MIDI file were obtained for checking",
 "conversion": {
  "tool": "tools/stcpress.py (tools/lyimport)",
  "toolVersion": "1.5.0",
  "method": "The LilyPond source is read by a strict reader for the subset of LilyPond used by the edition (relative pitches, durations, bar checks, time signature changes, spacer rests, editorial accidentals marked with the edition's \\ficta command, manual melismata, a final bar line, settings that hide the bar lines and the time signature of one staff, and lyrics with hyphens). As in LilyPond, a time signature written in one voice applies to the whole score, and when the score sets no time signature before the music, the one every voice opens with is the score's first. A note that sounds across a bar line, which LilyPond prints whole, is encoded as notes tied across it; a note or spacer that another voice's time signature change falls inside is divided there. Accidentals are written where LilyPond's default accidental rule prints them; every altered note also carries its sounding accidental (@accid.ges). Lyrics are attached to notes with LilyPond's \\lyricsto rules. Only the first, untransposed \\book of the score template is converted. Any construct outside the subset stops the conversion. No music was entered or corrected by hand."
 },
 "manuscripts": [
  {
   "name": "Montpellier, Bibliothèque interuniversitaire, Section Médecine, H 196 (Montpellier Codex)",
   "settlement": "Montpellier",
   "repository": "Bibliothèque interuniversitaire, Section Médecine",
   "shelfmark": "H 196",
   "siglum": "F-MO",
   "folios": "9r-12v",
   "foliosStatedBy": "the edition's metadata.yaml ('Montpellier Codex', 'No. 7, fol(s)/pages 9-12v'), which also links 2 library images that the library files as 196009rZ.jpg and 196009vZ.jpg; the library's IIIF manifest in Foli@ gives the pages from 9r to 12v these paginations",
   "iiifManifest": "https://ged.scdi-montpellier.fr/florabium45/rest/bium/iiif/presentation/ark:/85504/012565/manifest.json",
   "canvasIds": [
    "https://ged.scdi-montpellier.fr/florabium45/rest/bium/iiif/presentation/ark:/85504/012565/canvas/78935",
    "https://ged.scdi-montpellier.fr/florabium45/rest/bium/iiif/presentation/ark:/85504/012565/canvas/79048",
    "https://ged.scdi-montpellier.fr/florabium45/rest/bium/iiif/presentation/ark:/85504/012565/canvas/78908",
    "https://ged.scdi-montpellier.fr/florabium45/rest/bium/iiif/presentation/ark:/85504/012565/canvas/78707",
    "https://ged.scdi-montpellier.fr/florabium45/rest/bium/iiif/presentation/ark:/85504/012565/canvas/78974",
    "https://ged.scdi-montpellier.fr/florabium45/rest/bium/iiif/presentation/ark:/85504/012565/canvas/78910",
    "https://ged.scdi-montpellier.fr/florabium45/rest/bium/iiif/presentation/ark:/85504/012565/canvas/78835",
    "https://ged.scdi-montpellier.fr/florabium45/rest/bium/iiif/presentation/ark:/85504/012565/canvas/78687"
   ],
   "canvasLabels": [
    "BUM_H196_030",
    "BUM_H196_031",
    "BUM_H196_032",
    "BUM_H196_033",
    "BUM_H196_034",
    "BUM_H196_035",
    "BUM_H196_036",
    "BUM_H196_037"
   ],
   "canvasFolios": [
    "9r",
    "9v",
    "10r",
    "10v",
    "11r",
    "11v",
    "12r",
    "12v"
   ],
   "iiifChecked": "2026-10-21: the Foli@ manifest labels its canvases by image number (BUM_H196_001 to BUM_H196_806) and gives each canvas's folio in its 'Pagination' metadata; the canvases listed are those whose pagination runs from 9r to 12v, the folios the edition states. The folio number on each recto was read on the library's image (checks/canvas.json). The edition's music sets only the word 'Alleluya', and the edition links library images of ff. 9r and 9v only; on these two pages the manuscript writes the syllables 'le' (9r), 'lu' and 'ya' (9v).",
   "images": {
    "status": "iiif",
    "level": "page",
    "libraryLink": "https://folia.scdi-montpellier.fr/recherche-folia/565",
    "checked": "2026-10-21",
    "rights": "The library's images are linked, not copied. The library publishes this manuscript in Foli@ with an IIIF manifest whose rights field reads 'Domaine public' and whose required attribution reads 'Fourni par les Bibliothèques des Universités de Montpellier - Service de coopération documentaire interuniversitaire'."
   },
   "links": [
    {
     "label": "DIAMM source record",
     "url": "https://www.diamm.ac.uk/sources/888/"
    },
    {
     "label": "DIAMM composition record",
     "url": "https://www.diamm.ac.uk/compositions/1531/"
    },
    {
     "label": "Library image of f. 9r, as linked by the edition",
     "url": "http://manuscrits.biu-montpellier.fr/images/196009rZ.jpg"
    },
    {
     "label": "Library image of f. 9v, as linked by the edition",
     "url": "http://manuscrits.biu-montpellier.fr/images/196009vZ.jpg"
    },
    {
     "label": "Library digital copy (Foli@, BIU Montpellier)",
     "url": "https://folia.scdi-montpellier.fr/recherche-folia/565"
    },
    {
     "label": "IIIF manifest (Foli@, BIU Montpellier)",
     "url": "https://ged.scdi-montpellier.fr/florabium45/rest/bium/iiif/presentation/ark:/85504/012565/manifest.json"
    },
    {
     "label": "IIIF canvas, library pagination 9r",
     "url": "https://ged.scdi-montpellier.fr/florabium45/rest/bium/iiif/presentation/ark:/85504/012565/canvas/78935"
    },
    {
     "label": "IIIF canvas, library pagination 9v",
     "url": "https://ged.scdi-montpellier.fr/florabium45/rest/bium/iiif/presentation/ark:/85504/012565/canvas/79048"
    },
    {
     "label": "IIIF canvas, library pagination 10r",
     "url": "https://ged.scdi-montpellier.fr/florabium45/rest/bium/iiif/presentation/ark:/85504/012565/canvas/78908"
    },
    {
     "label": "IIIF canvas, library pagination 10v",
     "url": "https://ged.scdi-montpellier.fr/florabium45/rest/bium/iiif/presentation/ark:/85504/012565/canvas/78707"
    },
    {
     "label": "IIIF canvas, library pagination 11r",
     "url": "https://ged.scdi-montpellier.fr/florabium45/rest/bium/iiif/presentation/ark:/85504/012565/canvas/78974"
    },
    {
     "label": "IIIF canvas, library pagination 11v",
     "url": "https://ged.scdi-montpellier.fr/florabium45/rest/bium/iiif/presentation/ark:/85504/012565/canvas/78910"
    },
    {
     "label": "IIIF canvas, library pagination 12r",
     "url": "https://ged.scdi-montpellier.fr/florabium45/rest/bium/iiif/presentation/ark:/85504/012565/canvas/78835"
    },
    {
     "label": "IIIF canvas, library pagination 12v",
     "url": "https://ged.scdi-montpellier.fr/florabium45/rest/bium/iiif/presentation/ark:/85504/012565/canvas/78687"
    }
   ]
  }
 ],
 "editorialDeclaration": [
  "All notes, rests and syllables come from the source edition's LilyPond file at the pinned commit, converted mechanically. Nothing was transcribed from the manuscript for this encoding.",
  "Pitch, onset and duration of every note and the placement of every syllable were checked automatically against the edition's own MIDI file (checks/midi-compare.json).",
  "Accidentals: written accidentals are encoded where LilyPond's default accidental rule prints them in the edition; sounding alterations are given in @accid.ges on every other altered note. Accidentals the edition marks with its \\ficta command (printed above the note) are encoded as editorial accidentals (accid with func='edit', place='above').",
  "Each voice carries the text 'Al-le-lu-ya.' as verse 1 of its staff, as in the edition; the long melismata are marked in the edition with manual melisma commands, which decide where the syllables fall. Lyrics, punctuation and spelling are copied from the edition.",
  "The score sets no time signature before the music; every voice opens with 9/8 and changes to 6/8 in the second measure. The 9/8 is encoded as the opening time signature, and the change as a time signature change at the second measure.",
  "The tenor holds its notes over several measures: the edition writes them as breves and dotted half notes, each followed by spacer rests, and hides the tenor's bar lines while it holds them, so that each long note is printed once. MEI measures share their bar lines across the staves, so each long note is encoded as notes tied across the bar lines it sounds through (checks/conversion-report.json, tiedNoteHeadsAddedAtBarLines), and the spacer rests as invisible rests of plain values (spacersWrittenAsPlainValues). The tenor's opening breve sounds through the change from 9/8 to 6/8, which is written in the cantus and the altus; it is divided at the change (eventsSplitAtTimeChangesOfOtherParts). The pitch, onset and length of every tenor note are unchanged.",
  "The edition hides the tenor's bar lines while the tenor holds its long notes (\\override Staff.BarLine.transparent, switched on and off in the tenor's music) and hides the tenor's time signatures throughout (\\override Staff.TimeSignature.stencil = ##f). These layout settings are read and not encoded: the encoding draws the tenor's bar lines and time signatures like those of the other voices.",
  "Beams follow LilyPond's automatic beaming in 9/8 and 6/8, which the edition leaves on; they are recorded as beams in the MEI. Layout instructions of the edition (page size, staff size, system spacing) and its ambitus signs at the start of each staff are not encoded."
 ],
 "deviations": [
  "The tenor's long notes, which the edition prints once each with hidden bar lines, are encoded as notes tied across the bar lines they sound through; the spacer rests that follow them are invisible rests.",
  "The tenor's hidden bar lines and hidden time signatures are drawn in the encoding. MEI can hide one staff's time signature (staffDef/@meter.visible), but the converter does not encode this setting.",
  "Ambitus signs printed at the start of each staff in the edition (produced by its layout file) are not encoded.",
  "System and page breaks follow Verovio's layout, not the edition's.",
  "Voice names (cantus, altus, tenor) exist only as LilyPond context names; they are recorded here but not encoded as staff labels, as the edition does not print them.",
  "The edition's MIDI tempo (quarter note = 140) is not encoded.",
  "Verovio may draw lyric hyphens and extender lines in other places than LilyPond, which drops hyphens where space is short."
 ],
 "original": {
  "repository": "https://github.com/st-cecilia-press/miscellaneous",
  "commit": "dcbcfbe7eab66322718c8defa48a2dff19f4706b",
  "path": "organum_alleluya",
  "url": "https://github.com/st-cecilia-press/miscellaneous/tree/dcbcfbe7eab66322718c8defa48a2dff19f4706b/organum_alleluya",
  "lilypondFile": "organum_alleluya.ly",
  "pdfFile": "organum_alleluya.pdf",
  "midiFile": "organum_alleluya.mid",
  "retrieved": "2026-10-21"
 },
 "converted": "2026-10-21"
}