<classSpec ident="att.duration.logical" module="MEI.shared" type="atts">
<desc>Attributes that express duration in musical terms.</desc>
<attList org="group">
<attDef ident="dur" usage="opt">
<desc>Records the duration of a feature using the relative durational values provided by
the
data.DURATION datatype.</desc>
</attDef>
</attList>
</classSpec>