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    <p>Karen,</p>
    <p>
      <blockquote type="cite">I don’t think using the neume names is
        appropriate for this repertory as the theorists didn’t use
        these.</blockquote>
      You're right here, I've already dispensed with them.</p>
    <p>
      <blockquote type="cite">The alignment is a more complex issue.
        Ideally you would probably want to number the perfections and
        then you would simply tag your tenor notes as occurring within a
        certain perfection.</blockquote>
      I've already <i>kind of</i> solved the alignment issue by using
      <section> as an alignment group. I'm against tagging in a
      particular perfection as that is implying that the music proceeds
      in a constant modal rhythm and has length, which may not be
      exactly correct. All I'm attempting to do is to align the notes
      together that occur at the same time and leave the rhythm up to a
      further editor or a performer's interpretation, especially with
      this two-part music which may be completely without formal rhythm.</p>
    <p>However, I'm still no closer to even beginning to customise the
      ODD to fit my needs, there's some sort of SVG error which I do not
      understand. Either going through Roma or cloning the MEI github
      and attempting to build directly gives me this error (see my
      message 16th of this month) and the MEI customization page is
      still broken.</p>
    <p>Joshua.<br>
    </p>
    <div class="moz-cite-prefix">On 17/03/2019 10:02, Karen Desmond
      wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:CAEh3VHVOkp52C2NAHRf5igDporeHCZVmdZ511uQ-ppAL92N0Lw@mail.gmail.com">
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        <div dir="auto">Hi Joshua,</div>
      </div>
      <div dir="auto"><br>
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      <div dir="auto">Quick comment. first, I’m really glad someone is
        looking at modal notation. My first instinct though would be to
        not use the neumes module, as many of the things you are trying
        to do may have support within the measural module - where you
        have elements like ligatures, and note values like longs and
        breves, though I know of course that this not mensural and
        eventually would need at least its own notationtype attribute
        (and module?). I don’t think using the neume names is
        appropriate for this repertory as the theorists didn’t use
        these. For modal notation probably the most important thing you
        want to encode is how many notes within a ligature and for the
        specific case of the conjunctura, that the type of ligature is a
        conjunctura (possibly using the form element of conjunctura).
        You’re right that properly encoding the divisio is important -
        whether it truly functions as a rest, or a divisio syllabarum,
        etc.</div>
      <div dir="auto"><br>
      </div>
      <div dir="auto">The alignment is a more complex issue. Ideally you
        would probably want to number the perfections and then you would
        simply tag your tenor notes as occurring within a certain
        perfection. However in the duplum the ligatures could begin in
        one perfection and end in another - i.e. if in a discant section
        in mode 1 you had a 3-note ligature, the notes would be long
        breve long but the first long is in the first perfection and the
        third is the second perfection, unless of course you had
        perfection be a sub-element of ligature in the tag hierarchy. </div>
      <div dir="auto"><br>
      </div>
      <div dir="auto">Best</div>
      <div dir="auto"><br>
      </div>
      <div dir="auto">Karen</div>
      <div><br>
        <div class="gmail_quote">
          <div dir="ltr" class="gmail_attr">On Sat, Mar 9, 2019 at 9:27
            AM Joshua Stutter <a class="moz-txt-link-rfc2396E" href="mailto:josh@yokermusic.scot"><josh@yokermusic.scot></a> wrote:<br>
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              <p>Dear all,</p>
              <p>Fairly new MEI user, trying to encode some 13th-century
                Notre Dame notation into MEI for a class. MEI has good
                support for many neumes, but I'm attempting to get them
                to work in a polyphonic context, align correctly and
                with good semantics. Here is a small example which I'm
                attempting to encode:</p>
              <p><img src="cid:part1.96DADB70.D6A2EFBA@yokermusic.scot"
                  alt="Small Notre Dame example."
                  style="width:612px;max-width:100%" class=""></p>
              <p>Most of the neumes can be notated and typed with the
                exception of the complex neume FGBGA which does not have
                a name. This is fine as this music does not stick to the
                usual neume types.<br>
              </p>
              <p>My first issue arises when trying to show the first
                tenor note D is aligned with the porrectus GFG. How
                would I go about achieving this without using
                semantically-incorrect spacers or invisible rests or
                durations? What I really wish for is the possibility to
                encode sections of polyphony in groups that are aligned
                together, i.e. the first three neumes in the organal
                voice in one group, then the porrectus in a new group
                with the tenor virga.</p>
              <p>The second issue is the vertical lines. They are not
                barlines, nor always rests. They are divisiones with a
                complex and context-sensitive function. Sometimes they
                function as rests, sometimes they are alignment marks,
                sometimes syllable marks.</p>
              <p>The first attached file 'benedicamus-domino.mei'
                encodes this example naively. Nothing is aligned and I
                use <barLine> where divisiones are.</p>
              <p>The second attached file 'benedicamus-domino-wish.mei'
                is how I wish to encode this file, using a made-up
                element <alignmentGrp> that can contain anything a
                <font size="-1"><</font>section> contains. I have
                also replaced the <barLine> with another made-up
                element <divisio>.</p>
              <p>Needless to say, I'm not concerned with the output in
                verovio, as very little neumatic notation is supported
                anyway, but instead encoding the alignment and elements
                correctly. Is something like this possible in MEI
                already or will I have to dabble in ODD? If I must, are
                there any links to a good workflow and documentation for
                using ODD with MEI?</p>
              <p>Thanks in advance for responding to this quite complex
                question,</p>
              <p>Joshua Stutter.<br>
              </p>
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                                                <div dir="ltr"><font
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                                                      color="#444444">Karen
                                                      Desmond</font></font></div>
                                                <div dir="ltr"><font
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                                                      color="#444444">V</font><span
style="color:rgb(68,68,68);font-family:georgia,serif">isiting Fellow,
                                                      Clare Hall, and
                                                      Visiting Scholar,
                                                      Faculty of Music,
                                                      University of
                                                      Cambridge
                                                      (Lent/Easter 2019)</span></font></div>
                                                <div><font size="1"
                                                    face="georgia,
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                                                    color="#444444">Assistant
                                                    Professor of
                                                    Music, Brandeis
                                                    University</font></div>
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