The <perfDuration> element captures the intended duration of the work.
<elementSpec xmlns="http://www.tei-c.org/ns/1.0" rend="add" ident="work" module="MEI.header"><desc xml:lang="en">Provides a detailed description of a work — a distinct intellectual or artistic creation
—
specifically its history, language use, and high-level musical attributes (
<abbr>e.g.</abbr>, key, tempo,
meter, medium of performance, and intended duration).</desc>
<classes>
<memberOf key="att.common"/>
<memberOf key="att.authorized"/>
<memberOf key="att.bibl"/>
<memberOf key="att.dataPointing"/>
<memberOf key="att.pointing"/>
<memberOf key="att.targetEval"/>
<memberOf key="model.workLike"/>
</classes>
<content>
<sequence minOccurs="1" maxOccurs="1"><classRef key="model.headLike" minOccurs="0" maxOccurs="unbounded"/>
<interleave minOccurs="1" maxOccurs="1"><classRef key="model.identifierLike" minOccurs="0" maxOccurs="unbounded"/>
<classRef key="model.titleLike" minOccurs="1" maxOccurs="unbounded"/>
<elementRef key="respStmt" minOccurs="0"/>
<elementRef key="dedication" minOccurs="0"/>
<classRef key="model.workIdent" minOccurs="0" maxOccurs="unbounded"/>
<elementRef key="otherChar" minOccurs="0" maxOccurs="unbounded"/>
<elementRef key="creation" minOccurs="0"/>
<elementRef key="history" minOccurs="0"/>
<elementRef key="langUsage" minOccurs="0"/>
<elementRef key="perfMedium" minOccurs="0"/>
<elementRef key="perfDuration" minOccurs="0"/>
<elementRef key="audience" minOccurs="0"/>
<elementRef key="contents" minOccurs="0"/>
<elementRef key="context" minOccurs="0"/>
<elementRef key="biblList" minOccurs="0" maxOccurs="unbounded"/>
<elementRef key="notesStmt" minOccurs="0"/>
<elementRef key="classification" minOccurs="0"/>
<elementRef key="expressionList" minOccurs="0"/>
<elementRef key="componentList" minOccurs="0"/>
<elementRef key="relationList" minOccurs="0"/>
<elementRef key="extMeta" minOccurs="0" maxOccurs="unbounded"/></interleave></sequence>
</content>
<remarks xml:lang="en">
<p>The <gi scheme="MEI">perfDuration</gi> element captures the <emph>intended duration</emph>
of the work.</p>
</remarks></elementSpec>