system.leftline 

Indicates whether the staves are joined at the left by a continuous line.
The default value is "true". Do not confuse this with the heavy vertical line used as a
grouping symbol.

Attribute Information

Used By

Attribute Group mei:mei_att.systems.attribute.system.leftline

Source 

<xs:attribute name="system.leftline" type="mei:mei_data.BOOLEAN">
  <xs:annotation>
    <xs:documentation>Indicates whether the staves are joined at the left by a continuous line. The default value is "true". Do not confuse this with the heavy vertical line used as a grouping symbol.</xs:documentation>
  </xs:annotation>
</xs:attribute>

Sample