<classSpec ident="att.rest.vis.mensural" module="MEI.mensural" type="atts">
<desc>Visual domain attributes.</desc>
<attList org="group">
<attDef ident="spaces" usage="opt">
<desc>States how many spaces are covered by the rest.</desc>
<datatype maxOccurs="1" minOccurs="1">
<rng:data type="positiveInteger"/>
</datatype>
</attDef>
</attList>
</classSpec>