mei:extMeta 

(extended metadata) – Provides a container element for non-MEI metadata
formats.

Element Information

Model

ANY element from ANY namespace

Attributes

QName Type Fixed Default Use Inheritable Annotation
label xs:string optional 
Provides a name or label for an element. The value may be any
string.
n optional 
Provides a number-like designation for an element.
xml:base mei:mei_data.URI optional 
Provides a base URI reference with which applications can resolve relative
URI references into absolute URI references.
xml:id xs: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.
xml:space restriction of xs:token optional 
Allows one to signal to an application whether an element's white space is
"significant". The behavior of xml:space cascades to all descendant elements, but it can
be turned off locally by setting the xml:space attribute to the value
"default".

Used By

Elements mei:meiHead, mei:mei_model.expressionLike, mei:mei_model.itemLike, mei:mei_model.manifestationLike, mei:mei_model.workLike

Source 

<xs:element name="extMeta">
  <xs:annotation>
    <xs:documentation>(extended metadata) – Provides a container element for non-MEI metadata formats.</xs:documentation>
  </xs:annotation>
  <xs:complexType mixed="true">
    <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:mei_macro.anyXML"/>
    <xs:attributeGroup ref="mei:mei_att.common.attributes"/>
    <xs:attributeGroup ref="mei:mei_att.whitespace.attributes"/>
  </xs:complexType>
</xs:element>

Sample