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rism-digital
read the @dur(.ges) value in mRest
If an @dur(.ges) in mRest is coded, Verovio should consider the coded values when rendering the rest:
This feature is important for cadenza-like structures as for instance in this example:
instead Verovio renders a brevis rest although [email protected]="1":
Click here for the MEI code
<?xml version="1.0" encoding="UTF-8"?>
<?xml-model href="https://music-encoding.org/schema/4.0.1/mei-CMN.rng" type="application/xml" schematypens="http://relaxng.org/ns/structure/1.0"?>
<?xml-model href="https://music-encoding.org/schema/4.0.1/mei-CMN.rng" type="application/xml" schematypens="http://purl.oclc.org/dsdl/schematron"?>
<mei meiversion="4.0.0" xmlns="http://www.music-encoding.org/ns/mei">
<meiHead>
<fileDesc>
<titleStmt>
<title label="NMA digital" type="unit">K. 311/3, m.173a</title>
</titleStmt>
<pubStmt/>
</fileDesc>
</meiHead>
<music>
<body>
<mdiv n="1" xml:id="mdiv_72">
<score xml:id="score_78">
<scoreDef key.mode="major" key.pname="d" key.sig="2s" meter.count="4" meter.sym="common" meter.unit="4" xml:id="scoreDef_01">
<staffGrp bar.thru="true" symbol="brace" xml:id="staffGrp_01">
<staffDef clef.line="2" clef.shape="G" key.sig="2s" lines="5" n="1" xml:id="staffDef_P1"/>
<staffDef clef.line="4" clef.shape="F" key.sig="2s" lines="5" n="2" xml:id="staffDef_P2"/>
</staffGrp>
</scoreDef>
<section xml:id="section_A_m1-1">
<measure metcon="false" n="173a" right="invis" xml:id="m173a_k311_003">
<tempo midi.bpm="45" place="above" staff="1" tstamp="1" xml:id="tempo03">Andante</tempo>
<staff n="1" xml:id="staff_31272">
<layer n="1" xml:id="layer_31278">
<beam xml:id="beam_31284">
<note accid.ges="n" dots="1" dur="8" oct="5" pname="g" xml:id="note_31290"/>
<note accid.ges="n" dur="16" oct="5" pname="e" xml:id="note_31296"/>
</beam>
<beam xml:id="beam_31302">
<note accid.ges="s" dots="1" dur="8" oct="6" pname="c" xml:id="note_31308"/>
<note accid.ges="n" dur="16" oct="5" pname="a" xml:id="note_31314"/>
</beam>
<note accid.ges="n" dots="1" dur="4" oct="6" pname="e" xml:id="note_31320"/>
<note accid.ges="n" dur="8" oct="6" pname="d" xml:id="note_31326"/>
<beam xml:id="beam_31332">
<note accid.ges="s" dur="8" oct="6" pname="c" xml:id="note_31338"/>
<note accid.ges="n" dur="8" oct="5" pname="b" xml:id="note_31344"/>
<note accid.ges="n" dur="8" oct="5" pname="a" xml:id="note_31350"/>
<note accid="s" dur="8" oct="5" pname="g" xml:id="note_31356"/>
</beam>
<tuplet bracket.visible="false" num="6" num.visible="false" numbase="4" xml:id="tuplet_31362">
<beam xml:id="beam_31362">
<note accid.ges="n" dur="16" oct="5" pname="a" xml:id="note_31368"/>
<note accid="s" dur="16" oct="5" pname="a" xml:id="note_31374"/>
<note accid.ges="n" dur="16" oct="5" pname="b" xml:id="note_31380"/>
<note accid="n" dur="16" oct="5" pname="a" xml:id="note_31386"/>
<note accid="n" dur="16" oct="5" pname="g" xml:id="note_31392"/>
<note accid.ges="s" dur="16" oct="5" pname="f" xml:id="note_31398"/>
</beam>
</tuplet>
<tuplet bracket.visible="false" num="6" num.visible="false" numbase="4" xml:id="tuplet_31404">
<beam xml:id="beam_31404">
<note accid.ges="n" dur="16" oct="5" pname="a" xml:id="note_31410"/>
<note accid.ges="n" dur="16" oct="5" pname="g" xml:id="note_31416"/>
<note accid.ges="n" dur="16" oct="5" pname="b" xml:id="note_31422"/>
<note accid.ges="n" dur="16" oct="5" pname="a" xml:id="note_31428"/>
<note accid.ges="n" dur="16" oct="5" pname="g" xml:id="note_31434"/>
<note accid.ges="s" dur="16" oct="5" pname="f" xml:id="note_31440"/>
</beam>
</tuplet>
<tuplet bracket.visible="false" num="6" num.visible="false" numbase="4" xml:id="tuplet_31446">
<beam xml:id="beam_31446">
<note accid.ges="n" dur="16" oct="5" pname="e" xml:id="note_31452"/>
<note accid.ges="s" dur="16" oct="5" pname="f" xml:id="note_31458"/>
<note accid.ges="n" dur="16" oct="5" pname="g" xml:id="note_31464"/>
<note accid.ges="s" dur="16" oct="5" pname="f" xml:id="note_31470"/>
<note accid.ges="n" dur="16" oct="5" pname="a" xml:id="note_31476"/>
<note accid.ges="n" dur="16" oct="5" pname="g" xml:id="note_31482"/>
</beam>
</tuplet>
<tuplet bracket.visible="false" num="6" num.visible="false" numbase="4" xml:id="tuplet_31488">
<beam xml:id="beam_31488">
<note accid.ges="s" dur="16" oct="5" pname="f" xml:id="note_31494"/>
<note accid.ges="n" dur="16" oct="5" pname="e" xml:id="note_31500"/>
<note accid.ges="n" dur="16" oct="5" pname="d" xml:id="note_31506"/>
<note accid.ges="s" dur="16" oct="5" pname="c" xml:id="note_31512"/>
<note accid.ges="n" dur="16" oct="4" pname="b" xml:id="note_31518"/>
<note accid.ges="n" dur="16" oct="4" pname="a" xml:id="note_31524"/>
</beam>
</tuplet>
</layer>
</staff>
<staff n="2" xml:id="staff_31530">
<layer n="1" xml:id="layer_31536">
<mRest dur.ges="1" xml:id="mRest_31734a"/>
</layer>
</staff>
<slur endid="#note_31296" staff="1" startid="#note_31290" xml:id="slur_31542"/>
<slur endid="#note_31314" staff="1" startid="#note_31308" xml:id="slur_31548"/>
<slur endid="#note_31356" staff="1" startid="#note_31320" xml:id="slur_31554"/>
<slur endid="#note_31524" staff="1" startid="#note_31368" xml:id="slur_31560"/>
<fermata startid="#mRest_31734a" xml:id="fermata_31908b"/>
</measure>
</section>
</score>
</mdiv>
</body>
</music>
</mei>
Yes, this will be very useful, in particular for cadenzas as illustrated in the above post.
Display of the whole-measure rest in such cases should considered carefully, because this may otherwise conflict with other whole-measure rests which require the breve rest:
Click to view MEI test data for above example
<?xml version="1.0" encoding="UTF-8"?>
<?xml-model href="https://music-encoding.org/schema/dev/mei-all.rng" type="application/xml" schematypens="http://relaxng.org/ns/structure/1.0"?>
<?xml-model href="https://music-encoding.org/schema/dev/mei-all.rng" type="application/xml" schematypens="http://purl.oclc.org/dsdl/schematron"?>
<mei xmlns="http://www.music-encoding.org/ns/mei" meiversion="5.0.0-dev">
<meiHead>
<fileDesc>
<titleStmt>
<title />
</titleStmt>
<pubStmt />
</fileDesc>
<encodingDesc>
<appInfo>
<application isodate="2023-01-13T09:07:58" version="3.15.0-dev-5d898ce-dirty">
<name>Verovio</name>
<p>Transcoded from Humdrum</p>
</application>
</appInfo>
</encodingDesc>
<workList>
<work>
<title />
</work>
</workList>
<extMeta>
<frames xmlns="http://www.humdrum.org/ns/humxml">
<metaFrame n="17" token="!!!verovio: spacingNonLinear 0.5" xml:id="L18">
<frameInfo>
<startTime float="40" />
<frameType>reference</frameType>
<referenceKey>verovio</referenceKey>
<referenceValue>spacingNonLinear 0.5</referenceValue>
</frameInfo>
</metaFrame>
</frames>
</extMeta>
</meiHead>
<music>
<body>
<mdiv xml:id="ms9rwif">
<score xml:id="sy4tgwz">
<scoreDef xml:id="s7c661w" midi.bpm="400.000000">
<staffGrp xml:id="s1cl72i">
<staffDef xml:id="staffdef-L1F1" n="1" lines="5">
<clef xml:id="cstg3qa" shape="G" line="2" />
<meterSig xml:id="metersig-L2F1" count="2" unit="1" />
</staffDef>
</staffGrp>
</scoreDef>
<section xml:id="section-L1F1">
<measure xml:id="measure-L1">
<staff xml:id="staff-L1F1" n="1">
<layer xml:id="layer-L1F1N1" n="1">
<note xml:id="note-L4F1" dur="1" oct="4" pname="c" accid.ges="n" />
<note xml:id="note-L5F1" dur="1" oct="4" pname="d" accid.ges="n" />
</layer>
</staff>
</measure>
<measure xml:id="measure-L6">
<staff xml:id="staff-L6F1N1" n="1">
<layer xml:id="layer-L6F1N1" n="1">
<note xml:id="note-L7F1" dur="breve" oct="4" pname="e" accid.ges="n" />
</layer>
</staff>
</measure>
<measure xml:id="measure-L8">
<staff xml:id="staff-L8F1N1" n="1">
<layer xml:id="layer-L8F1N1" n="1">
<mRest xml:id="mrest-L9F1" />
</layer>
</staff>
</measure>
<measure xml:id="measure-L10">
<staff xml:id="staff-L10F1N1" n="1">
<layer xml:id="layer-L10F1N1" n="1">
<note xml:id="note-L11F1" dur="2" oct="4" pname="f" accid.ges="n" />
<note xml:id="note-L12F1" dur="2" oct="4" pname="g" accid.ges="n" />
<note xml:id="note-L13F1" dur="1" oct="4" pname="e" accid.ges="n" />
</layer>
</staff>
</measure>
<measure xml:id="measure-L14" right="end">
<staff xml:id="staff-L14F1N1" n="1">
<layer xml:id="layer-L14F1N1" n="1">
<note xml:id="note-L15F1" dur="breve" oct="4" pname="c" accid.ges="n" />
</layer>
</staff>
</measure>
</section>
</score>
</mdiv>
</body>
</music>
</mei>
A good algorithm for display of the <mRest> shape could be to examine the prevailing time signature of the music. In the cadenza example, the meter is 4/4, so a whole rest should be used to display the <mRest>. In a 2/1 meter, the <mRest> would be displayed as a breve rest, and in 4/1, the <mRest> would be displayed as a long rest.
Currently <mRest> visual rests are calculated by the duration of the rest without regard to the prevailing meter. So I propose ignoring the intended duration of the rest and looking at the time signature information instead.
It would still be useful to have @dur.ges for <mRest> to use for exceptions to the above algorithm.
o yes, maybe it's even better to look at the preceding meter signature definition. Then there is no need to code @dur.ges which normally corresponds with the prevailing time signature