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Rendering of neumes (that look like ligatures) #3724

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martha-thomae opened this issue Jul 3, 2024 · 3 comments
Open

Rendering of neumes (that look like ligatures) #3724

martha-thomae opened this issue Jul 3, 2024 · 3 comments
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@martha-thomae
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martha-thomae commented Jul 3, 2024

The rules for "ligatures"—neumes consisting of more than one neume component—are relatively simple in my opinion. I am using the following real piece for illustrating this (see the manuscript image and encoding):

  • The initial and ending stem of the neumes should be rendered together with the note.
    • For the ending stem, see the first neume in the "Be" syllable, and the two pes neumes following in syllables "ne" and "di".
    • For the starting stem see the clivis in syllable "ci" and the porrectus flexus the appears as the second neume in the syllable "te"
  • Also all neume components inside a neume should be connected by "connecting lines," except in the following cases:
    • A repeated note (see the very first neume in the piece, in syllable "Be" the first punctum is separated from the rest of the neume in the manuscript, but still all three notes are part of the same neume).
    • All rhombuses (which are encoded as @tilt=se) must not have connected lines. (You can see a few examples in the second system.)
Screenshot 2024-07-03 at 17 25 46

The file for this can be seen in the ECHOES project repo: https://github.com/ECHOES-from-the-Past/GABCtoMEI/blob/main/MEI_outfiles/antiphonae_ad_communionem/002_C02_benedicite-omnes_pem85041_square_SQUARE.mei. I am providing a cleaner version here:

<?xml version="1.0" ?>
<?xml-model href="https://music-encoding.org/schema/5.0/mei-Neumes.rng" type="application/xml" schematypens="http://relaxng.org/ns/structure/1.0"?>
<?xml-model href="https://music-encoding.org/schema/5.0/mei-Neumes.rng" type="application/xml" schematypens="http://purl.oclc.org/dsdl/schematron"?>
<mei xmlns="http://www.music-encoding.org/ns/mei" meiversion="5.0">
   <meiHead>
      <fileDesc>
         <titleStmt>
            <title>Benedicite omnes</title>
         </titleStmt>
         <pubStmt/>
      </fileDesc>
   </meiHead>
   <music>
      <body>
         <mdiv xml:id="m-a89893d2-2fec-11ef-a1ac-3645f29ecd15">
            <score xml:id="m-a8989454-2fec-11ef-a1ac-3645f29ecd15">
               <scoreDef xml:id="m-a8989486-2fec-11ef-a1ac-3645f29ecd15">
                  <staffGrp xml:id="m-a89894ae-2fec-11ef-a1ac-3645f29ecd15">
                     <staffDef n="1" lines="5" notationtype="neume" xml:id="m-a89894ea-2fec-11ef-a1ac-3645f29ecd15"/>
                  </staffGrp>
               </scoreDef>
               <section xml:id="m-a8989512-2fec-11ef-a1ac-3645f29ecd15">
                  <staff n="1" xml:id="m-a898953a-2fec-11ef-a1ac-3645f29ecd15">
                     <layer n="1" xml:id="m-a898956c-2fec-11ef-a1ac-3645f29ecd15">
                        <clef shape="C" line="4" xml:id="m-a8989594-2fec-11ef-a1ac-3645f29ecd15"/>
                        <syllable xml:id="m-a89895bc-2fec-11ef-a1ac-3645f29ecd15">
                           <syl wordpos="i" con="d" xml:id="m-a89895da-2fec-11ef-a1ac-3645f29ecd15">Be</syl>
                           <neume xml:id="m-a8989602-2fec-11ef-a1ac-3645f29ecd15">
                              <nc xml:id="m-a8989620-2fec-11ef-a1ac-3645f29ecd15" pname="e" oct="2"/>
                              <nc xml:id="m-a8989648-2fec-11ef-a1ac-3645f29ecd15" pname="e" oct="2"/>
                              <nc tilt="s" xml:id="m-a8989666-2fec-11ef-a1ac-3645f29ecd15" pname="f" oct="2"/>
                           </neume>
                        </syllable>
                        <syllable xml:id="m-a898968e-2fec-11ef-a1ac-3645f29ecd15">
                           <syl wordpos="m" con="d" xml:id="m-a89896ac-2fec-11ef-a1ac-3645f29ecd15">ne</syl>
                           <neume xml:id="m-a89896d4-2fec-11ef-a1ac-3645f29ecd15">
                              <nc xml:id="m-a89896f2-2fec-11ef-a1ac-3645f29ecd15" pname="d" oct="2"/>
                              <nc tilt="s" xml:id="m-a898971a-2fec-11ef-a1ac-3645f29ecd15" pname="e" oct="2"/>
                           </neume>
                        </syllable>
                        <syllable xml:id="m-a8989738-2fec-11ef-a1ac-3645f29ecd15">
                           <syl wordpos="m" con="d" xml:id="m-a8989756-2fec-11ef-a1ac-3645f29ecd15">di</syl>
                           <neume xml:id="m-a898977e-2fec-11ef-a1ac-3645f29ecd15">
                              <nc xml:id="m-a898979c-2fec-11ef-a1ac-3645f29ecd15" pname="g" oct="2"/>
                              <nc tilt="s" xml:id="m-a89897ba-2fec-11ef-a1ac-3645f29ecd15" pname="a" oct="2"/>
                           </neume>
                        </syllable>
                        <syllable xml:id="m-a89897e2-2fec-11ef-a1ac-3645f29ecd15">
                           <syl wordpos="m" con="d" xml:id="m-a8989800-2fec-11ef-a1ac-3645f29ecd15">ci</syl>
                           <neume xml:id="m-a898981e-2fec-11ef-a1ac-3645f29ecd15">
                              <nc tilt="n" xml:id="m-a898983c-2fec-11ef-a1ac-3645f29ecd15" pname="g" oct="2"/>
                              <nc xml:id="m-a8989864-2fec-11ef-a1ac-3645f29ecd15" pname="e" oct="2"/>
                           </neume>
                        </syllable>
                        <syllable xml:id="m-a8989882-2fec-11ef-a1ac-3645f29ecd15">
                           <syl wordpos="t" xml:id="m-a89898a0-2fec-11ef-a1ac-3645f29ecd15">te</syl>
                           <neume xml:id="m-a89898c8-2fec-11ef-a1ac-3645f29ecd15">
                              <nc curve="c" xml:id="m-a89898e6-2fec-11ef-a1ac-3645f29ecd15" pname="f" oct="2">
                                 <liquescent xml:id="m-a898990e-2fec-11ef-a1ac-3645f29ecd15"/>
                              </nc>
                           </neume>
                           <neume xml:id="m-a898992c-2fec-11ef-a1ac-3645f29ecd15">
                              <nc ligated="true" tilt="n" xml:id="m-a898994a-2fec-11ef-a1ac-3645f29ecd15" pname="f" oct="2"/>
                              <nc ligated="true" xml:id="m-a8989972-2fec-11ef-a1ac-3645f29ecd15" pname="d" oct="2"/>
                              <nc xml:id="m-a8989990-2fec-11ef-a1ac-3645f29ecd15" pname="e" oct="2"/>
                              <nc xml:id="m-a8989ac6-2fec-11ef-a1ac-3645f29ecd15" pname="d" oct="2"/>
                           </neume>
                        </syllable>
                        <syllable xml:id="m-a8989ae4-2fec-11ef-a1ac-3645f29ecd15">
                           <syl wordpos="i" con="d" xml:id="m-a8989b0c-2fec-11ef-a1ac-3645f29ecd15">om</syl>
                           <neume xml:id="m-a8989b2a-2fec-11ef-a1ac-3645f29ecd15">
                              <nc xml:id="m-a8989b48-2fec-11ef-a1ac-3645f29ecd15" pname="g" oct="2"/>
                           </neume>
                        </syllable>
                        <syllable xml:id="m-a8989b70-2fec-11ef-a1ac-3645f29ecd15">
                           <syl wordpos="t" xml:id="m-a8989b8e-2fec-11ef-a1ac-3645f29ecd15">nes</syl>
                           <neume xml:id="m-a8989bac-2fec-11ef-a1ac-3645f29ecd15">
                              <nc xml:id="m-a8989bd4-2fec-11ef-a1ac-3645f29ecd15" pname="g" oct="2"/>
                           </neume>
                        </syllable>
                        <syllable xml:id="m-a8989c06-2fec-11ef-a1ac-3645f29ecd15">
                           <syl wordpos="i" con="d" xml:id="m-a8989c2e-2fec-11ef-a1ac-3645f29ecd15">an</syl>
                           <neume xml:id="m-a8989c4c-2fec-11ef-a1ac-3645f29ecd15">
                              <nc xml:id="m-a8989c6a-2fec-11ef-a1ac-3645f29ecd15" pname="b" oct="2"/>
                              <nc tilt="s" xml:id="m-a8989c92-2fec-11ef-a1ac-3645f29ecd15" pname="c" oct="3"/>
                           </neume>
                        </syllable>
                        <syllable xml:id="m-a8989cb0-2fec-11ef-a1ac-3645f29ecd15">
                           <syl wordpos="m" con="d" xml:id="m-a8989cce-2fec-11ef-a1ac-3645f29ecd15">ge</syl>
                           <neume xml:id="m-a8989cf6-2fec-11ef-a1ac-3645f29ecd15">
                              <nc xml:id="m-a8989d14-2fec-11ef-a1ac-3645f29ecd15" pname="a" oct="2"/>
                           </neume>
                        </syllable>
                        <syllable xml:id="m-a8989d32-2fec-11ef-a1ac-3645f29ecd15">
                           <syl wordpos="t" xml:id="m-a8989d5a-2fec-11ef-a1ac-3645f29ecd15">li</syl>
                           <neume xml:id="m-a8989d78-2fec-11ef-a1ac-3645f29ecd15">
                              <nc xml:id="m-a8989d96-2fec-11ef-a1ac-3645f29ecd15" pname="g" oct="2"/>
                           </neume>
                        </syllable>
                        <syllable xml:id="m-a8989dc8-2fec-11ef-a1ac-3645f29ecd15">
                           <syl wordpos="i" con="d" xml:id="m-a8989df0-2fec-11ef-a1ac-3645f29ecd15">do</syl>
                           <neume xml:id="m-a8989e0e-2fec-11ef-a1ac-3645f29ecd15">
                              <nc xml:id="m-a8989e2c-2fec-11ef-a1ac-3645f29ecd15" pname="a" oct="2"/>
                           </neume>
                        </syllable>
                        <syllable xml:id="m-a8989e54-2fec-11ef-a1ac-3645f29ecd15">
                           <syl wordpos="m" con="d" xml:id="m-a8989e72-2fec-11ef-a1ac-3645f29ecd15">mi</syl>
                           <neume xml:id="m-a8989e90-2fec-11ef-a1ac-3645f29ecd15">
                              <nc xml:id="m-a8989eb8-2fec-11ef-a1ac-3645f29ecd15" pname="g" oct="2"/>
                           </neume>
                        </syllable>
                        <syllable xml:id="m-a8989ed6-2fec-11ef-a1ac-3645f29ecd15">
                           <syl wordpos="t" xml:id="m-a8989ef4-2fec-11ef-a1ac-3645f29ecd15">ni</syl>
                           <neume xml:id="m-a8989f1c-2fec-11ef-a1ac-3645f29ecd15">
                              <nc xml:id="m-a8989f3a-2fec-11ef-a1ac-3645f29ecd15" pname="f" oct="2"/>
                           </neume>
                        </syllable>
                        <syllable xml:id="m-a8989f62-2fec-11ef-a1ac-3645f29ecd15">
                           <syl wordpos="i" con="d" xml:id="m-a8989f80-2fec-11ef-a1ac-3645f29ecd15">do</syl>
                           <neume xml:id="m-a8989f9e-2fec-11ef-a1ac-3645f29ecd15">
                              <nc xml:id="m-a8989fc6-2fec-11ef-a1ac-3645f29ecd15" pname="a" oct="2"/>
                              <nc tilt="s" xml:id="m-a8989fee-2fec-11ef-a1ac-3645f29ecd15" pname="b" oct="2"/>
                              <nc xml:id="m-a898a00c-2fec-11ef-a1ac-3645f29ecd15" pname="a" oct="2"/>
                           </neume>
                        </syllable>
                        <syllable xml:id="m-a898a034-2fec-11ef-a1ac-3645f29ecd15">
                           <syl wordpos="m" con="d" xml:id="m-a898a052-2fec-11ef-a1ac-3645f29ecd15">mi</syl>
                           <neume xml:id="m-a898a070-2fec-11ef-a1ac-3645f29ecd15">
                              <nc xml:id="m-a898a098-2fec-11ef-a1ac-3645f29ecd15" pname="g" oct="2"/>
                              <nc xml:id="m-a898a0b6-2fec-11ef-a1ac-3645f29ecd15" pname="a" oct="2"/>
                              <nc tilt="n" xml:id="m-a898a0d4-2fec-11ef-a1ac-3645f29ecd15" pname="g" oct="2"/>
                           </neume>
                        </syllable>
                        <syllable xml:id="m-a898a0fc-2fec-11ef-a1ac-3645f29ecd15">
                           <syl wordpos="t" xml:id="m-a898a11a-2fec-11ef-a1ac-3645f29ecd15">num</syl>
                           <neume xml:id="m-a898a138-2fec-11ef-a1ac-3645f29ecd15">
                              <nc xml:id="m-a898a160-2fec-11ef-a1ac-3645f29ecd15" pname="g" oct="2"/>
                           </neume>
                        </syllable>
                        <syllable xml:id="m-a898a17e-2fec-11ef-a1ac-3645f29ecd15">
                           <syl wordpos="i" con="d" xml:id="m-a898a1a6-2fec-11ef-a1ac-3645f29ecd15">hym</syl>
                           <neume xml:id="m-a898a1c4-2fec-11ef-a1ac-3645f29ecd15">
                              <nc xml:id="m-a898a1e2-2fec-11ef-a1ac-3645f29ecd15" pname="g" oct="2"/>
                           </neume>
                        </syllable>
                        <syllable xml:id="m-a898a20a-2fec-11ef-a1ac-3645f29ecd15">
                           <syl wordpos="t" xml:id="m-a898a228-2fec-11ef-a1ac-3645f29ecd15">num</syl>
                           <neume xml:id="m-a898a246-2fec-11ef-a1ac-3645f29ecd15">
                              <nc xml:id="m-a898a26e-2fec-11ef-a1ac-3645f29ecd15" pname="g" oct="2"/>
                           </neume>
                        </syllable>
                        <syllable xml:id="m-a898a28c-2fec-11ef-a1ac-3645f29ecd15">
                           <syl wordpos="i" con="d" xml:id="m-a898a2aa-2fec-11ef-a1ac-3645f29ecd15">di</syl>
                           <neume xml:id="m-a898a2d2-2fec-11ef-a1ac-3645f29ecd15">
                              <nc xml:id="m-a898a2f0-2fec-11ef-a1ac-3645f29ecd15" pname="b" oct="2"/>
                              <nc tilt="s" xml:id="m-a898a30e-2fec-11ef-a1ac-3645f29ecd15" pname="c" oct="3"/>
                           </neume>
                        </syllable>
                        <syllable xml:id="m-a898a336-2fec-11ef-a1ac-3645f29ecd15">
                           <syl wordpos="m" con="d" xml:id="m-a898a354-2fec-11ef-a1ac-3645f29ecd15">ci</syl>
                           <neume xml:id="m-a898a372-2fec-11ef-a1ac-3645f29ecd15">
                              <nc xml:id="m-a898a39a-2fec-11ef-a1ac-3645f29ecd15" pname="a" oct="2"/>
                           </neume>
                        </syllable>
                        <syllable xml:id="m-a898a3b8-2fec-11ef-a1ac-3645f29ecd15">
                           <syl wordpos="t" xml:id="m-a898a3d6-2fec-11ef-a1ac-3645f29ecd15">te</syl>
                           <neume xml:id="m-a898a3f4-2fec-11ef-a1ac-3645f29ecd15">
                              <nc xml:id="m-a898a41c-2fec-11ef-a1ac-3645f29ecd15" pname="g" oct="2"/>
                              <nc xml:id="m-a898a43a-2fec-11ef-a1ac-3645f29ecd15" pname="a" oct="2"/>
                              <nc xml:id="m-a898a458-2fec-11ef-a1ac-3645f29ecd15" pname="b" oct="2"/>
                              <nc xml:id="m-a898a480-2fec-11ef-a1ac-3645f29ecd15" pname="c" oct="3"/>
                              <nc xml:id="m-a898a49e-2fec-11ef-a1ac-3645f29ecd15" pname="b" oct="2"/>
                           </neume>
                           <neume xml:id="m-a898a4c6-2fec-11ef-a1ac-3645f29ecd15">
                              <nc tilt="n" xml:id="m-a898a4ee-2fec-11ef-a1ac-3645f29ecd15" pname="b" oct="2"/>
                              <nc xml:id="m-a898a50c-2fec-11ef-a1ac-3645f29ecd15" pname="a" oct="2"/>
                           </neume>
                        </syllable>
                        <syllable xml:id="m-a898a52a-2fec-11ef-a1ac-3645f29ecd15">
                           <syl wordpos="s" xml:id="m-a898a552-2fec-11ef-a1ac-3645f29ecd15">et</syl>
                           <neume xml:id="m-a898a570-2fec-11ef-a1ac-3645f29ecd15">
                              <nc xml:id="m-a898a58e-2fec-11ef-a1ac-3645f29ecd15" pname="a" oct="2"/>
                           </neume>
                        </syllable>
                        <syllable xml:id="m-a898a5ac-2fec-11ef-a1ac-3645f29ecd15">
                           <syl wordpos="i" con="d" xml:id="m-a898a5d4-2fec-11ef-a1ac-3645f29ecd15">su</syl>
                           <neume xml:id="m-a898a5f2-2fec-11ef-a1ac-3645f29ecd15">
                              <nc xml:id="m-a898a610-2fec-11ef-a1ac-3645f29ecd15" pname="b" oct="2"/>
                              <nc xml:id="m-a898a638-2fec-11ef-a1ac-3645f29ecd15" pname="c" oct="3"/>
                              <nc xml:id="m-a898a656-2fec-11ef-a1ac-3645f29ecd15" pname="b" oct="2"/>
                           </neume>
                        </syllable>
                        <syllable xml:id="m-a898a674-2fec-11ef-a1ac-3645f29ecd15">
                           <syl wordpos="m" con="d" xml:id="m-a898a692-2fec-11ef-a1ac-3645f29ecd15">pe</syl>
                           <neume xml:id="m-a898a6ba-2fec-11ef-a1ac-3645f29ecd15">
                              <nc xml:id="m-a898a6e2-2fec-11ef-a1ac-3645f29ecd15" pname="g" oct="2"/>
                           </neume>
                        </syllable>
                        <syllable xml:id="m-a898a70a-2fec-11ef-a1ac-3645f29ecd15">
                           <syl wordpos="m" con="d" xml:id="m-a898a728-2fec-11ef-a1ac-3645f29ecd15">re</syl>
                           <neume xml:id="m-a898a746-2fec-11ef-a1ac-3645f29ecd15">
                              <nc xml:id="m-a898a76e-2fec-11ef-a1ac-3645f29ecd15" pname="a" oct="2"/>
                           </neume>
                        </syllable>
                        <syllable xml:id="m-a898a78c-2fec-11ef-a1ac-3645f29ecd15">
                           <syl wordpos="m" con="d" xml:id="m-a898a7aa-2fec-11ef-a1ac-3645f29ecd15">xal</syl>
                           <neume xml:id="m-a898a7d2-2fec-11ef-a1ac-3645f29ecd15">
                              <nc xml:id="m-a898a7f0-2fec-11ef-a1ac-3645f29ecd15" pname="g" oct="2"/>
                           </neume>
                        </syllable>
                        <syllable xml:id="m-a898a80e-2fec-11ef-a1ac-3645f29ecd15">
                           <syl wordpos="m" con="d" xml:id="m-a898a82c-2fec-11ef-a1ac-3645f29ecd15">ta</syl>
                           <neume xml:id="m-a898a854-2fec-11ef-a1ac-3645f29ecd15">
                              <nc xml:id="m-a898a872-2fec-11ef-a1ac-3645f29ecd15" pname="f" oct="2"/>
                              <nc xml:id="m-a898a890-2fec-11ef-a1ac-3645f29ecd15" pname="g" oct="2"/>
                              <nc tilt="s" xml:id="m-a898a8b8-2fec-11ef-a1ac-3645f29ecd15" pname="a" oct="2"/>
                           </neume>
                        </syllable>
                        <syllable xml:id="m-a898a8d6-2fec-11ef-a1ac-3645f29ecd15">
                           <syl wordpos="t" xml:id="m-a898a8fe-2fec-11ef-a1ac-3645f29ecd15">te</syl>
                           <neume xml:id="m-a898a91c-2fec-11ef-a1ac-3645f29ecd15">
                              <nc xml:id="m-a898a944-2fec-11ef-a1ac-3645f29ecd15" pname="g" oct="2"/>
                           </neume>
                        </syllable>
                        <syllable xml:id="m-a898a962-2fec-11ef-a1ac-3645f29ecd15">
                           <syl wordpos="i" con="d" xml:id="m-a898a980-2fec-11ef-a1ac-3645f29ecd15">e</syl>
                           <neume xml:id="m-a898a9a8-2fec-11ef-a1ac-3645f29ecd15">
                              <nc xml:id="m-a898a9c6-2fec-11ef-a1ac-3645f29ecd15" pname="e" oct="2"/>
                              <nc tilt="s" xml:id="m-a898a9e4-2fec-11ef-a1ac-3645f29ecd15" pname="f" oct="2"/>
                              <nc tilt="se" xml:id="m-a898aa0c-2fec-11ef-a1ac-3645f29ecd15" pname="e" oct="2"/>
                              <nc tilt="se" xml:id="m-a898aa2a-2fec-11ef-a1ac-3645f29ecd15" pname="d" oct="2"/>
                              <nc tilt="s" xml:id="m-a898aa48-2fec-11ef-a1ac-3645f29ecd15" pname="e" oct="2"/>
                           </neume>
                        </syllable>
                        <syllable xml:id="m-a898aa70-2fec-11ef-a1ac-3645f29ecd15">
                           <syl wordpos="t" xml:id="m-a898aa8e-2fec-11ef-a1ac-3645f29ecd15">um</syl>
                           <neume xml:id="m-a898aaac-2fec-11ef-a1ac-3645f29ecd15">
                              <nc tilt="n" xml:id="m-a898aaca-2fec-11ef-a1ac-3645f29ecd15" pname="e" oct="2"/>
                              <nc xml:id="m-a898aaf2-2fec-11ef-a1ac-3645f29ecd15" pname="d" oct="2"/>
                           </neume>
                        </syllable>
                        <syllable xml:id="m-a898ab10-2fec-11ef-a1ac-3645f29ecd15">
                           <syl wordpos="s" xml:id="m-a898ab2e-2fec-11ef-a1ac-3645f29ecd15">in</syl>
                           <neume xml:id="m-a898ab56-2fec-11ef-a1ac-3645f29ecd15">
                              <nc xml:id="m-a898ab74-2fec-11ef-a1ac-3645f29ecd15" pname="e" oct="2"/>
                              <nc tilt="s" xml:id="m-a898ab92-2fec-11ef-a1ac-3645f29ecd15" pname="f" oct="2"/>
                           </neume>
                           <neume xml:id="m-a898abba-2fec-11ef-a1ac-3645f29ecd15">
                              <nc tilt="n" xml:id="m-a898abe2-2fec-11ef-a1ac-3645f29ecd15" pname="f" oct="2"/>
                              <nc xml:id="m-a898ac00-2fec-11ef-a1ac-3645f29ecd15" pname="d" oct="2"/>
                           </neume>
                        </syllable>
                        <syllable xml:id="m-a898ac1e-2fec-11ef-a1ac-3645f29ecd15">
                           <syl wordpos="i" con="d" xml:id="m-a898ac46-2fec-11ef-a1ac-3645f29ecd15">sae</syl>
                           <neume xml:id="m-a898ac64-2fec-11ef-a1ac-3645f29ecd15">
                              <nc xml:id="m-a898ac82-2fec-11ef-a1ac-3645f29ecd15" pname="g" oct="2"/>
                              <nc tilt="s" xml:id="m-a898acaa-2fec-11ef-a1ac-3645f29ecd15" pname="a" oct="2"/>
                              <nc tilt="se" xml:id="m-a898acc8-2fec-11ef-a1ac-3645f29ecd15" pname="g" oct="2"/>
                              <nc tilt="se" xml:id="m-a898ace6-2fec-11ef-a1ac-3645f29ecd15" pname="f" oct="2"/>
                           </neume>
                           <neume xml:id="m-a898ad0e-2fec-11ef-a1ac-3645f29ecd15">
                              <nc xml:id="m-a898ad2c-2fec-11ef-a1ac-3645f29ecd15" pname="g" oct="2"/>
                              <nc tilt="s" xml:id="m-a898ad4a-2fec-11ef-a1ac-3645f29ecd15" pname="a" oct="2"/>
                           </neume>
                           <neume xml:id="m-a898ad68-2fec-11ef-a1ac-3645f29ecd15">
                              <nc tilt="n" xml:id="m-a898ad90-2fec-11ef-a1ac-3645f29ecd15" pname="a" oct="2"/>
                              <nc xml:id="m-a898adb8-2fec-11ef-a1ac-3645f29ecd15" pname="g" oct="2"/>
                           </neume>
                        </syllable>
                        <syllable xml:id="m-a898ade0-2fec-11ef-a1ac-3645f29ecd15">
                           <syl wordpos="m" con="d" xml:id="m-a898adfe-2fec-11ef-a1ac-3645f29ecd15">cu</syl>
                           <neume xml:id="m-a898aef8-2fec-11ef-a1ac-3645f29ecd15">
                              <nc xml:id="m-a898af20-2fec-11ef-a1ac-3645f29ecd15" pname="e" oct="2"/>
                              <nc tilt="n" xml:id="m-a898af3e-2fec-11ef-a1ac-3645f29ecd15" pname="g" oct="2"/>
                              <nc xml:id="m-a898af5c-2fec-11ef-a1ac-3645f29ecd15" pname="f" oct="2"/>
                              <nc xml:id="m-a898af7a-2fec-11ef-a1ac-3645f29ecd15" pname="f" oct="2"/>
                           </neume>
                        </syllable>
                        <syllable xml:id="m-a898afa2-2fec-11ef-a1ac-3645f29ecd15">
                           <syl wordpos="t" xml:id="m-a898afc0-2fec-11ef-a1ac-3645f29ecd15">la</syl>
                           <neume xml:id="m-a898afde-2fec-11ef-a1ac-3645f29ecd15">
                              <nc tilt="n" xml:id="m-a898affc-2fec-11ef-a1ac-3645f29ecd15" pname="f" oct="2"/>
                              <nc xml:id="m-a898b024-2fec-11ef-a1ac-3645f29ecd15" pname="e" oct="2"/>
                           </neume>
                        </syllable>
                     </layer>
                  </staff>
               </section>
            </score>
         </mdiv>
      </body>
   </music>
</mei>
@martha-thomae
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Basically, anything that starts with a clivis or porrectus shape should have an initial stem on the starting note.

  • Clivis shape: image
  • Porrectus shape: image

Basically, anything that starts with:

<nc tilt="n"/>

should have the stem rendered next to the note (not separated with a space as it currently is). This initial nc with @tilt = n usually appears as the first component of neumes that start with a clivis or porrectus shape (the shapes shown above).


And all neumes that have more than one neume component, should have all their neume components connected to one another (with the exception of the rhombuses and repeated notes). See the example of a torculus with the highest neume component being more than a second apart:

image

An example of the encoding of the torculus in the middle would be:

<neume>
  <nc loc="4"/>
  <nc loc="6"/>
  <nc loc="3"/>
</neume>

@lpugin
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lpugin commented Jul 5, 2024

It would be helpful to have more "atomic" examples, with just one of each. I would also suggest to add some comments in the MEI for names you are using but that are not given in the MEI elements and attributes. For example, rhombuses appears nowhere. Something like:

<neume>
   <!-- clivis -->
   <nc tilt="n"/>
   <nc/>
</neume>

@martha-thomae
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martha-thomae commented Jul 14, 2024

Sure! Will work on adding these comments on the guidelines :)
thank you

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