@label(optional)Captures text to be used to generate a label for the element to which it’s attached,
a
"tool tip" or prefatory text, for example. Should not be used to record document
content.
Value is plain text.
@layer(optional)Identifies the layer to which a feature applies.
One or more values of datatype positiveInteger, separated by spaces.
@staff(optional)Signifies the staff on which a notated event occurs or to which a control event
applies. Mandatory when applicable.
One or more values of datatype positiveInteger, separated by spaces.
@type(optional)Designation which characterizes the element in some sense, using any convenient
classification scheme or typology that employs single-token labels.
One or more values of datatype NMTOKEN, separated by spaces.
@xml:id(optional)Regularizes the naming of an element and thus facilitates building links between it
and other resources. Each id attribute within a document must have a unique value.
Value is a valid xml:id.