<classSpec xmlns="http://www.tei-c.org/ns/1.0" rend="add" ident="att.systems" module="MEI.shared" type="atts">
<desc xml:lang="en">Attributes that capture system layout information.</desc>
<attList>
<attDef ident="system.leftline" usage="opt">
<desc xml:lang="en">Indicates whether the system starts with a continuous line connecting all staves,
including single-staff systems. Do not confuse this with the heavy vertical line used
as a grouping
symbol.</desc>
</attDef>
<attDef ident="system.leftmar" usage="opt">
<desc xml:lang="en">Describes the amount of whitespace at the left system margin relative to
page.leftmar.</desc>
</attDef>
<attDef ident="system.rightmar" usage="opt">
<desc xml:lang="en">Describes the amount of whitespace at the right system margin relative to
page.rightmar.</desc>
</attDef>
<attDef ident="system.topmar" usage="opt">
<desc xml:lang="en">Describes the distance from page’s top edge to the first system; used for first page
only.</desc>
</attDef>
</attList>
</classSpec>