<attribute name="type" use="optional" default="main">
<simpleType>
<union>
<simpleType>
<restriction base="NMTOKEN">
<enumeration value="main"/>
<enumeration value="secondary"/>
<enumeration value="alternative"/>
<enumeration value="original"/>
<enumeration value="popular"/>
<enumeration value="opusNumber"/>
<enumeration value="songTitle"/>
<enumeration value="albumTitle"/>
<enumeration value="seriesTitle"/>
<enumeration value="episodeTitle"/>
</restriction>
</simpleType>
<simpleType>
<restriction base="mpeg7:termReferenceType"/>
</simpleType>
</union>
</simpleType>
</attribute> |