The <lb> element is allowed here in order to facilitate karaoke applications.
<elementSpec xmlns="http://www.tei-c.org/ns/1.0" rend="add" ident="refrain" module="MEI.lyrics"><desc xml:lang="en">Recurring lyrics, especially at the end of each verse or stanza of a poem or song
lyrics;
a chorus.</desc>
<classes>
<memberOf key="att.common"/>
<memberOf key="att.facsimile"/>
<memberOf key="att.lang"/>
<memberOf key="att.refrain.log"/>
<memberOf key="att.refrain.vis"/>
<memberOf key="att.refrain.ges"/>
<memberOf key="att.refrain.anl"/>
<memberOf key="model.verseLike"/>
</classes>
<content>
<sequence minOccurs="1" maxOccurs="1"><alternate minOccurs="0" maxOccurs="unbounded"><elementRef key="dir"/>
<elementRef key="dynam"/>
<elementRef key="tempo"/>
<elementRef key="space"/></alternate>
<alternate minOccurs="1" maxOccurs="unbounded"><elementRef key="volta"/>
<classRef key="model.sylLike"/>
<classRef key="model.appLike"/>
<classRef key="model.editLike"/></alternate>
<classRef key="model.lbLike" minOccurs="0" maxOccurs="unbounded"/></sequence>
</content>
<remarks xml:lang="en">
<p>The <gi scheme="MEI">lb</gi> element is allowed here in order to facilitate karaoke applications.</p>
</remarks></elementSpec>