<div dir="ltr"><div class="gmail_quote"><div dir="ltr"><div>Dear all,</div><div>I am looking for advice about encoding specific durations for notes where the original notation is not specific, and there may be more than one interpretation of the durations. This is in reference to encoding mensural notation, but I am posting here rather than on mensural IG list because I imagine there might be other similar situations in CWMN (such as the realisation of notes inégales or swung notes in jazz).</div><div><br></div><div>In most standard late thirteenth-century compositions, it is understood that a breve divides into three equal semibreves and two unequal (the default is that a semibreve is 1/3 breve), so this is equal to a breve duration:</div><div><note="semibrevis"></div><div><note="semibrevis"></div><div><note="semibrevis"></div><div>And if two semibreves, the second semibreve is 2/3 of a breve:</div><div><note="semibrevis"></div><div><note="semibrevis" num="1" numbase="2"> </div><div><br></div><div>If 4,5,6,7 semibreves were placed for one breve value, their relative durations are ambiguous and one solution is to encode them simply as evenly divided, like for this group of 7:</div><div><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><br></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent">   <note dur="semibrevis" </span><span style="font-size:12.8px;line-height:normal">num="7" numbase="1"</span><span style="color:rgb(0,0,0);font-family:Arial;white-space:pre-wrap;line-height:1.38;background-color:transparent"> /></span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent">   <note dur="<span style="line-height:20.24px">semibrevis</span>" </span><span style="font-size:12.8px;line-height:normal">num="7" numbase="1"</span><span style="color:rgb(0,0,0);font-family:Arial;white-space:pre-wrap;line-height:1.38;background-color:transparent"> /></span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent">   <note dur="</span><span style="color:rgb(0,0,0);font-family:Arial;line-height:20.24px;white-space:pre-wrap">semibrevis</span><span style="color:rgb(0,0,0);font-family:Arial;white-space:pre-wrap;line-height:1.38;background-color:transparent">" </span><span style="font-size:12.8px;line-height:normal">num="7" numbase="1"</span><span style="color:rgb(0,0,0);font-family:Arial;line-height:1.38;white-space:pre-wrap;background-color:transparent"> /></span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent">   <note dur="</span><span style="color:rgb(0,0,0);font-family:Arial;line-height:20.24px;white-space:pre-wrap">semibrevis</span><span style="color:rgb(0,0,0);font-family:Arial;white-space:pre-wrap;line-height:1.38;background-color:transparent">" </span><span style="font-size:12.8px;line-height:normal">num="7" numbase="1"</span><span style="color:rgb(0,0,0);font-family:Arial;line-height:1.38;white-space:pre-wrap;background-color:transparent"> /></span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent">   <note dur="</span><span style="color:rgb(0,0,0);font-family:Arial;line-height:20.24px;white-space:pre-wrap">semibrevis</span><span style="color:rgb(0,0,0);font-family:Arial;white-space:pre-wrap;line-height:1.38;background-color:transparent">" </span><span style="font-size:12.8px;line-height:normal">num="7" numbase="1"</span><span style="color:rgb(0,0,0);font-family:Arial;line-height:1.38;white-space:pre-wrap;background-color:transparent">/></span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent">   <note dur="</span><span style="color:rgb(0,0,0);font-family:Arial;line-height:20.24px;white-space:pre-wrap">semibrevis</span><span style="color:rgb(0,0,0);font-family:Arial;white-space:pre-wrap;line-height:1.38;background-color:transparent">" </span><span style="font-size:12.8px;line-height:normal">num="7" numbase="1"</span><span style="color:rgb(0,0,0);font-family:Arial;line-height:1.38;white-space:pre-wrap;background-color:transparent"> /></span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent">   <note dur="</span><span style="color:rgb(0,0,0);font-family:Arial;line-height:20.24px;white-space:pre-wrap">semibrevis</span><span style="color:rgb(0,0,0);font-family:Arial;white-space:pre-wrap;line-height:1.38;background-color:transparent">" </span><span style="font-size:12.8px;line-height:normal">num="7" numbase="1"</span><span style="color:rgb(0,0,0);font-family:Arial;line-height:1.38;white-space:pre-wrap;background-color:transparent">/></span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><br></p></div><div>This is pretty straightforward (although an editor might want to offer some suggestions as to how the durations of a group of 7 semibreves might be interpreted since they were most likely not sung as 7 equal semibreves). <br></div><div><br></div><div>In any case, my question has to do with early fourteenth-century notation (like in the Fauvel manuscript), when it becomes unclear whether the breve divides into three equal parts, or into two equal parts (i.e., to use a slightly later terminology we don't always know whether the tempus level divisions are perfect, where a breve contains three equal semibreves, or imperfect, where a breve contains two equal semibreves).</div><div><br></div><div>The most straightforward transcription could simply encode the semibreves as evenly (as above) no matter how many occur in the time of one breve, whether, 2, 3, 4, or 5 etc.:</div><div><br></div><div><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent">   <note dur="semibrevis" </span><span style="font-size:12.8px;line-height:normal">num="2" numbase="1"</span><span style="color:rgb(0,0,0);font-family:Arial;white-space:pre-wrap;line-height:1.38;background-color:transparent">/></span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent">   <note dur="semibrevis" </span><span style="font-size:12.8px;line-height:normal">num="2" numbase="1"</span><span style="color:rgb(0,0,0);font-family:Arial;white-space:pre-wrap;line-height:1.38;background-color:transparent">/></span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="color:rgb(0,0,0);font-family:Arial;white-space:pre-wrap;line-height:1.38;background-color:transparent"><br></span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="color:rgb(0,0,0);font-family:Arial;white-space:pre-wrap;line-height:1.38;background-color:transparent">OR</span></p></div><div><br></div><div><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;background-color:transparent"></span><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent">   <note dur="semibrevis" </span><span style="font-size:12.8px;line-height:normal">num="3" numbase="1"</span><span style="color:rgb(0,0,0);font-family:Arial;white-space:pre-wrap;line-height:1.38;background-color:transparent">/></span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent">   <note dur="semibrevis" </span><span style="font-size:12.8px;line-height:normal">num="3" numbase="1"</span><span style="color:rgb(0,0,0);font-family:Arial;white-space:pre-wrap;line-height:1.38;background-color:transparent">/></span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent">   <note dur="semibrevis" </span><span style="font-size:12.8px;line-height:normal">num="3" numbase="1"</span><span style="color:rgb(0,0,0);font-family:Arial;white-space:pre-wrap;line-height:1.38;background-color:transparent">/></span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent"><br></span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent">OR</span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><br></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent">   <note dur="semibrevis" </span><span style="font-size:12.8px;line-height:normal">num="4" numbase="1"</span><span style="color:rgb(0,0,0);font-family:Arial;white-space:pre-wrap;line-height:1.38;background-color:transparent"> /></span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent">   <note dur="<span style="line-height:20.24px">semibrevis</span>" </span><span style="font-size:12.8px;line-height:normal">num="4" numbase="1"</span><span style="color:rgb(0,0,0);font-family:Arial;white-space:pre-wrap;line-height:1.38;background-color:transparent"> /></span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent">   <note dur="</span><span style="color:rgb(0,0,0);font-family:Arial;line-height:20.24px;white-space:pre-wrap">semibrevis</span><span style="color:rgb(0,0,0);font-family:Arial;white-space:pre-wrap;line-height:1.38;background-color:transparent">" </span><span style="font-size:12.8px;line-height:normal">num="4" numbase="1"</span><span style="color:rgb(0,0,0);font-family:Arial;line-height:1.38;white-space:pre-wrap;background-color:transparent"> /></span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent">   <note dur="</span><span style="color:rgb(0,0,0);font-family:Arial;line-height:20.24px;white-space:pre-wrap">semibrevis</span><span style="color:rgb(0,0,0);font-family:Arial;white-space:pre-wrap;line-height:1.38;background-color:transparent">" </span><span style="font-size:12.8px;line-height:normal">num="4" numbase="1"</span><span style="color:rgb(0,0,0);font-family:Arial;line-height:1.38;white-space:pre-wrap;background-color:transparent"> /></span></p><br><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><font color="#000000" face="Arial"><span style="white-space:pre-wrap">ETC.</span></font></p><br><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt">However, what I would like to do (especially to make consonances line up properly between polyphonic parts) is to offer alternative durational interpretations for both tempus perfectum and tempus imperfectum. One suggestion was to use <app>. Something like this, where I would offer a suggested reading for three semibreves according to tempus perfectum, and tempus imperfectum, and then also show how they are found in the manuscript. For example, this is the first group of four semibreves in the first measure of the triplum:</p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><br></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><app></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><rdg type="p"> <!-- tempus perfectum --></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="line-height:normal"><span>     <note</span><span> dur</span><span>=</span>"semibrevis"<span> num</span><span>=</span>"2"<span> numbase</span><span>=</span>"1"<span> oct</span><span>=</span>"4"<span> pname</span><span>=</span>"a"<span> </span><span>/></span><br></span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="line-height:normal">     <note</span><span style="line-height:normal"> dur</span><span style="line-height:normal">=</span><span style="line-height:normal">"semibrevis"</span><span style="line-height:normal"> num</span><span style="line-height:normal">=</span><span style="line-height:normal">"2"</span><span style="line-height:normal"> numbase</span><span style="line-height:normal">=</span><span style="line-height:normal">"1"</span><span style="line-height:normal"> oct</span><span style="line-height:normal">=</span><span style="line-height:normal">"4"</span><span style="line-height:normal"> pname</span><span style="line-height:normal">=</span><span style="line-height:normal">"g"</span><span style="line-height:normal"> </span><span style="line-height:normal">/></span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="line-height:normal">     <note</span><span style="line-height:normal"> dur</span><span style="line-height:normal">=</span><span style="line-height:normal">"semibrevis"</span><span style="line-height:normal">  oct</span><span style="line-height:normal">=</span><span style="line-height:normal">"4"</span><span style="line-height:normal"> pname</span><span style="line-height:normal">=</span><span style="line-height:normal">"a"</span><span style="line-height:normal"> </span><span style="line-height:normal">/></span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="line-height:normal">     <note</span><span style="line-height:normal"> dur</span><span style="line-height:normal">=</span><span style="line-height:normal">"semibrevis"</span><span style="line-height:normal">  oct</span><span style="line-height:normal">=</span><span style="line-height:normal">"4"</span><span style="line-height:normal"> pname</span><span style="line-height:normal">=</span><span style="line-height:normal">"b"</span><span style="line-height:normal"> </span><span style="line-height:normal">></span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent"></rdg></span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent"><rdg type="i"> </span><span style="line-height:17.94px"><!-- tempus imperfectum --></span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent"><span style="line-height:20.24px">    </span></span><span style="line-height:normal"><note</span><span style="line-height:normal"> dur</span><span style="line-height:normal">=</span><span style="line-height:normal">"semibrevis"</span><span style="line-height:normal"> num</span><span style="line-height:normal">=</span><span style="line-height:normal">"2"</span><span style="line-height:normal"> numbase</span><span style="line-height:normal">=</span><span style="line-height:normal">"1"</span><span style="line-height:normal"> oct</span><span style="line-height:normal">=</span><span style="line-height:normal">"4"</span><span style="line-height:normal"> pname</span><span style="line-height:normal">=</span><span style="line-height:normal">"a"/</span><span style="line-height:normal">></span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="line-height:normal">    <note</span><span style="line-height:normal"> dur</span><span style="line-height:normal">=</span><span style="line-height:normal">"semibrevis"</span><span style="line-height:normal"> num</span><span style="line-height:normal">=</span><span style="line-height:normal">"2"</span><span style="line-height:normal"> numbase</span><span style="line-height:normal">=</span><span style="line-height:normal">"1"</span><span style="line-height:normal"> oct</span><span style="line-height:normal">=</span><span style="line-height:normal">"4"</span><span style="line-height:normal"> pname</span><span style="line-height:normal">=</span><span style="line-height:normal">"g"</span><span style="line-height:normal"> </span><span style="line-height:normal">/></span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="line-height:normal">    <note</span><span style="line-height:normal"> dur</span><span style="line-height:normal">=</span><span style="line-height:normal">"semibrevis"</span><span style="line-height:normal"> num</span><span style="line-height:normal">=</span><span style="line-height:normal">"2"</span><span style="line-height:normal"> numbase</span><span style="line-height:normal">=</span><span style="line-height:normal">"1"</span><span style="line-height:normal"> oct</span><span style="line-height:normal">=</span><span style="line-height:normal">"4"</span><span style="line-height:normal"> pname</span><span style="line-height:normal">=</span><span style="line-height:normal">"a"</span><span style="line-height:normal"> </span><span style="line-height:normal">/></span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="line-height:normal">    <note</span><span style="line-height:normal"> dur</span><span style="line-height:normal">=</span><span style="line-height:normal">"semibrevis"</span><span style="line-height:normal"> num</span><span style="line-height:normal">=</span><span style="line-height:normal">"2"</span><span style="line-height:normal"> numbase</span><span style="line-height:normal">=</span><span style="line-height:normal">"1"</span><span style="line-height:normal"> oct</span><span style="line-height:normal">=</span><span style="line-height:normal">"4"</span><span style="line-height:normal"> pname</span><span style="line-height:normal">=</span><span style="line-height:normal">"b"</span><span style="line-height:normal"> </span><span style="line-height:normal">></span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent"></rdg></span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent"><br></span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent"><lem></span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent">     </span><span style="line-height:normal"><note</span><span style="line-height:normal"> dur</span><span style="line-height:normal">=</span><span style="line-height:normal">"semibrevis"</span><span style="line-height:normal"> </span><span style="line-height:normal">oct</span><span style="line-height:normal">=</span><span style="line-height:normal">"4"</span><span style="line-height:normal"> pname</span><span style="line-height:normal">=</span><span style="line-height:normal">"a"</span><span style="line-height:normal"> </span><span style="line-height:normal">/></span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="line-height:normal">     <note</span><span style="line-height:normal"> dur</span><span style="line-height:normal">=</span><span style="line-height:normal">"semibrevis"</span><span style="line-height:normal"> </span><span style="line-height:normal">oct</span><span style="line-height:normal">=</span><span style="line-height:normal">"4"</span><span style="line-height:normal"> pname</span><span style="line-height:normal">=</span><span style="line-height:normal">"g"</span><span style="line-height:normal"> </span><span style="line-height:normal">/></span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="line-height:normal">     <note</span><span style="line-height:normal"> dur</span><span style="line-height:normal">=</span><span style="line-height:normal">"semibrevis"</span><span style="line-height:normal">  oct</span><span style="line-height:normal">=</span><span style="line-height:normal">"4"</span><span style="line-height:normal"> pname</span><span style="line-height:normal">=</span><span style="line-height:normal">"a"</span><span style="line-height:normal"> </span><span style="line-height:normal">/></span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="line-height:normal">     <note</span><span style="line-height:normal"> dur</span><span style="line-height:normal">=</span><span style="line-height:normal">"semibrevis"</span><span style="line-height:normal">  oct</span><span style="line-height:normal">=</span><span style="line-height:normal">"4"</span><span style="line-height:normal"> pname</span><span style="line-height:normal">=</span><span style="line-height:normal">"b"</span><span style="line-height:normal"> </span><span style="line-height:normal">></span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent"></lem></span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent"><br></span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent"></span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent"></app></span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><br></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt">AND this is the next group of three semibreves found in measure 2 of the triplum:</p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><br></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><app></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="line-height:17.94px"><rdg type="p"> <!-- tempus perfectum --></span><br></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt">







</p><p><span>   <note</span><span> dur</span><span>=</span><span>"semibrevis"</span><span>  oct</span><span>=</span><span>"4"</span><span> pname</span><span>=</span><span>"g" /</span><span>></span><br>
<span></span><span></span><span></span><span></span><span></span><span></span><span></span><span>   <note</span><span> dur</span><span>=</span><span>"semibrevis"</span><span>  oct</span><span>=</span><span>"4"</span><span> pname</span><span>=</span><span>"f"</span><span> </span><span>/></span><br>
<span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span>   <note</span><span> dur</span><span>=</span><span>"semibrevis"</span><span>  oct</span><span>=</span><span>"4"</span><span> pname</span><span>=</span><span>"g"</span><span> </span><span>/></span></p><p><span style="color:rgb(0,0,0);font-family:Arial;white-space:pre-wrap;line-height:1.38;background-color:transparent"></rdg></span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent"><rdg type="i"> </span><span style="line-height:17.94px"><!-- tempus imperfectum --></span><br></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent"><span style="line-height:20.24px">   <</span></span><span style="line-height:normal">note</span><span style="line-height:normal"> dur</span><span style="line-height:normal">=</span><span style="line-height:normal">"semibrevis"</span><span style="line-height:normal"> num</span><span style="line-height:normal">=</span><span style="line-height:normal">"2"</span><span style="line-height:normal"> numbase</span><span style="line-height:normal">=</span><span style="line-height:normal">"1"</span><span style="line-height:normal">  </span><span style="line-height:normal">oct</span><span style="line-height:normal">=</span><span style="line-height:normal">"4"</span><span style="line-height:normal"> pname</span><span style="line-height:normal">=</span><span style="line-height:normal">"g"/</span><span style="line-height:normal">></span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="line-height:normal">   <note</span><span style="line-height:normal"> dur</span><span style="line-height:normal">=</span><span style="line-height:normal">"semibrevis"</span><span style="line-height:normal"> num</span><span style="line-height:normal">=</span><span style="line-height:normal">"2"</span><span style="line-height:normal"> numbase</span><span style="line-height:normal">=</span><span style="line-height:normal">"1"</span><span style="line-height:normal">  </span><span style="line-height:normal">oct</span><span style="line-height:normal">=</span><span style="line-height:normal">"4"</span><span style="line-height:normal"> pname</span><span style="line-height:normal">=</span><span style="line-height:normal">"f"</span><span style="line-height:normal"> </span><span style="line-height:normal">/></span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="line-height:normal">   <note</span><span style="line-height:normal"> dur</span><span style="line-height:normal">=</span><span style="line-height:normal">"semibrevis"</span><span style="line-height:normal">  </span><span style="line-height:normal">oct</span><span style="line-height:normal">=</span><span style="line-height:normal">"4"</span><span style="line-height:normal"> pname</span><span style="line-height:normal">=</span><span style="line-height:normal">"g"</span><span style="line-height:normal"> </span><span style="line-height:normal">/></span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent"></rdg></span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent"><br></span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent"><lem></span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;background-color:transparent"></span><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent">   </span><span style="line-height:normal"><note</span><span style="line-height:normal"> dur</span><span style="line-height:normal">=</span><span style="line-height:normal">"semibrevis"</span><span style="line-height:normal">  oct</span><span style="line-height:normal">=</span><span style="line-height:normal">"4"</span><span style="line-height:normal"> pname</span><span style="line-height:normal">=</span><span style="line-height:normal">"g" /</span><span style="line-height:normal">></span></p><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span>   <note</span><span> dur</span><span>=</span><span>"semibrevis"</span><span>  oct</span><span>=</span><span>"4"</span><span> pname</span><span>=</span><span>"f"</span><span> </span><span>/></span><br><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span>   <note</span><span> dur</span><span>=</span><span>"semibrevis"</span><span>  oct</span><span>=</span><span>"4"</span><span> pname</span><span>=</span><span>"g"</span><span> </span><span>/></span><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent"></lem></span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent"></app></span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent"><br></span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent">I would also have to wrap the staffDef element, where the mensuration attributes is encoded to offer a choice between tempus perfectum and tempus imperfectum with app and rdg elements.</span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent"><br></span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent">My concern is that it seems like an awful lot of extra code to add in for all the semibreves that occur in these pieces. In most of these pieces, the entire top voice is composed of strings of these groups of semibreves, and the interpretation really is strictly rule-based - i.e., in tempus perfectum a group of four semibreves is always interpreted in a particular way, similarly in tempus imperfectum a group of four semibreves is always interpreted in a particular way. Is the <app> solution the best way to do this, or does anyone else have any other ideas? My other concern about app is that these are not readings occuring in different sources (the more usual use for the critical apparatus) but rather they are editorial interpretations. Perhaps something like <orig> and <reg> would work better, but can you have two different <reg> elements?</span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent"><br></span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent">The attached examples show the beginning of one piece as it would be encoded in tempus perfectum, and then in tempus imperfectum. The images show the two renderings in Verovio. What I want to be able to do is somehow encode both choices of interpretation within the one file.</span></p><p style="font-size:12.8px;line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent"><br></span></p><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent">Tempus perfectum:</span></p><p style="font-size:12.8px;line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent"><img src="cid:ii_155cc778ee131b26" alt="Inline image 1" width="454" height="140"><br></span></p><p style="font-size:12.8px;line-height:1.38;margin-top:0pt;margin-bottom:0pt"><br></p><p style="font-size:12.8px;line-height:1.38;margin-top:0pt;margin-bottom:0pt">Tempus imperfectum:</p><p style="font-size:12.8px;line-height:1.38;margin-top:0pt;margin-bottom:0pt"><img src="cid:ii_155cc77f1acd7b42" alt="Inline image 2" width="454" height="136"><br></p><p style="font-size:12.8px;line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent"><br></span></p><p style="font-size:12.8px;line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent">All my best,</span></p><p style="font-size:12.8px;line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent">Karen</span></p></div><span class="HOEnZb"><font color="#888888"><div><br></div>-- <br><div data-smartmail="gmail_signature"><div dir="ltr"><font color="#999999" size="1">Karen Desmond, Assistant Professor of Music</font><div><font color="#999999" size="1">Department of Music, Brandeis University</font></div><div><font color="#999999" size="1"><a href="http://www.arsmusicae.org/wordpress" target="_blank">http://www.arsmusicae.org/wordpress</a></font></div><div><br></div></div></div>
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</div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><font color="#999999" size="1">Karen Desmond, Assistant Professor of Music</font><div><font color="#999999" size="1">Department of Music, Brandeis University</font></div><div><font color="#999999" size="1"><a href="http://www.arsmusicae.org/wordpress" target="_blank">http://www.arsmusicae.org/wordpress</a></font></div></div></div>
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