The mordent type is used for both represents the mordent sign with the vertical line and the inverted-mordent sign without the line. The long attribute is "no" by default.
<xs:complexType name="mordent"><xs:annotation><xs:documentation>The mordent type is used for both represents the mordent sign with the vertical line and the inverted-mordent sign without the line. The long attribute is "no" by default.</xs:documentation></xs:annotation><xs:complexContent><xs:extension base="empty-trill-sound"><xs:attribute name="long" type="yes-no"/></xs:extension></xs:complexContent></xs:complexType>