craigsapp
commented
3 years ago The solution provided by @rettinghaus in issue https://github.com/rism-ch/verovio/issues/1988 is to use meterSig@form="invis"
Example:
Target conversion to MEI:
<?xml version="1.0" encoding="UTF-8"?>
<?xml-model href="https://music-encoding.org/schema/4.0.0/mei-all.rng" type="application/xml" schematypens="http://relaxng.org/ns/structure/1.0"?>
<?xml-model href="https://music-encoding.org/schema/4.0.0/mei-all.rng" type="application/xml" schematypens="http://purl.oclc.org/dsdl/schematron"?>
<mei xmlns="http://www.music-encoding.org/ns/mei" meiversion="4.0.0">
<meiHead>
<fileDesc>
<titleStmt>
<title />
</titleStmt>
<pubStmt />
</fileDesc>
<encodingDesc>
<appInfo>
<application isodate="2021-01-23T12:44:09" version="3.2.0-dev-e1219ba-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="11" token="!!!system-decoration: [*]" xml:id="L12">
<frameInfo>
<startTime float="16" />
<frameType>reference</frameType>
<referenceKey>system-decoration</referenceKey>
<referenceValue>[*]</referenceValue>
</frameInfo>
</metaFrame>
</frames>
</extMeta>
</meiHead>
<music>
<body>
<mdiv xml:id="mdiv-0000000613296468">
<score xml:id="score-0000001081178591">
<scoreDef xml:id="scoredef-0000001912549617" midi.bpm="400">
<staffGrp xml:id="staffgrp-0000000565269156" symbol="bracket">
<staffDef xml:id="staffdef-0000000509008038" n="1" lines="5">
<clef xml:id="clef-L2F2" shape="C" line="3" />
<meterSig xml:id="metersig-L3F2" form="invis" count="2" unit="1" />
<mensur xml:id="mensur-L4F2" modusmaior="2" modusminor="2" prolatio="2" tempus="2" sign="C" slash="1" />
</staffDef>
<staffDef xml:id="staffdef-0000000487888376" n="2" lines="5">
<clef xml:id="clef-L2F1" shape="C" line="3" />
<meterSig xml:id="metersig-L3F1" form="invis" count="2" unit="1" />
<mensur xml:id="mensur-L4F1" modusmaior="2" modusminor="2" prolatio="2" tempus="2" sign="C" slash="1" />
</staffDef>
</staffGrp>
</scoreDef>
<section xml:id="section-L1F1">
<measure xml:id="measure-L1" n="1">
<staff xml:id="staff-0000001226078887" n="1">
<layer xml:id="layer-L1F2N1" n="1">
<mRest xml:id="mrest-L6F2" />
</layer>
</staff>
<staff xml:id="staff-0000001419325351" n="2">
<layer xml:id="layer-L1F1N1" n="1">
<note xml:id="note-L6F1" dur="1" oct="3" pname="c" accid.ges="n" />
<note xml:id="note-L7F1" dur="1" oct="3" pname="d" accid.ges="n" />
</layer>
</staff>
</measure>
<measure xml:id="measure-L8">
<staff xml:id="staff-L8F2N1" n="1">
<layer xml:id="layer-L8F2N1" n="1">
<note xml:id="note-L9F2" dur="breve" oct="3" pname="a" accid.ges="n" />
</layer>
</staff>
<staff xml:id="staff-L8F1N1" n="2">
<layer xml:id="layer-L8F1N1" n="1">
<note xml:id="note-L9F1" dur="breve" oct="3" pname="d" accid.ges="n" />
</layer>
</staff>
</measure>
</section>
</score>
</mdiv>
</body>
</music>
</mei>
In this example: https://verovio.humdrum.org/?file=jrp:Jos2707
There is a problem that seems to be related to the whole-measure breve rest (when using
<mRest>), where the rest is treated as if it were a maxima, since verovio does not know the duration of the measure.Short example with the problem:
Rendering in verovio (where extra space beyond what is expected is added to the first measure):
MEI conversion:
The element causing the problem:
So the
<mRest>does not know that the duration of a measure is, and it is choosing too long of a duration as a result.Here is an example where the mensuration sign is replaced with a time signature:
This is rendered correctly:
and is performed correctly.
MEI conversion:
The solution will be to add
meterSig@count:This was originally removed because verovio would display the time signature and the mensuration sign at the same time.
Here is the target rendering of the first example with
meterSig@countadded:MIDI playback and notation will be rendered correctly:
but verovio needs to suppress the time signature if there is a mensuration sign at the same time.