<classSpec xmlns="http://www.tei-c.org/ns/1.0" rend="add" ident="att.perfRes" module="MEI.header" type="atts">
<desc xml:lang="en">Attributes that define the characteristics and components of the performance resource.</desc>
<attList>
<attDef ident="solo" usage="opt">
<desc xml:lang="en">Use this attribute to identify the performance resource as a soloist especially in
an accompanied work, such as a concerto or vocal solo.</desc>
</attDef>
</attList>
</classSpec>