spacing 

Records the absolute distance (as opposed to the relative distances
recorded in <scoreDef> elements) between this staff and the preceding one in the
same system. This value is meaningless for the first staff in a system since the
spacing.system attribute indicates the spacing between systems.

Attribute Information

Used By

Attribute Group mei:mei_att.staffDef.vis.attribute.spacing

Source 

<xs:attribute name="spacing" type="mei:mei_data.MEASUREMENTREL">
  <xs:annotation>
    <xs:documentation>Records the absolute distance (as opposed to the relative distances recorded in <scoreDef> elements) between this staff and the preceding one in the same system. This value is meaningless for the first staff in a system since the spacing.system attribute indicates the spacing between systems.</xs:documentation>
  </xs:annotation>
</xs:attribute>

Sample