<classSpec ident="att.staffGrp.vis" module="MEI.visual" type="atts">
<desc>Visual domain attributes.</desc>
<classes>
<memberOf
key="att.barring"/>
<memberOf
key="att.staffGroupingSym"/>
<memberOf
key="att.visibility"/>
</classes>
<attList org="group">
<attDef ident="bar.thru" usage="opt">
<desc>Indicates whether bar lines go across the space between staves (true) or are only
drawn across the lines of each staff (false).</desc>
<remarks>
<p part="N">This attribute is ignored when the bar.method attribute's value is "mensur" or
"takt".</p>
</remarks>
</attDef>
</attList>
</classSpec>