<elementSpec ident="oLayer" module="MEI.cmn">
<desc>(ossia layer) – A layer that contains an alternative to material in another layer.</desc>
<classes>
<memberOf
key="att.basic"/>
<memberOf
key="att.facsimile"/>
<memberOf
key="att.labelled"/>
<memberOf
key="att.linking"/>
<memberOf
key="att.metadataPointing"/>
<memberOf
key="att.nInteger"/>
<memberOf
key="att.responsibility"/>
<memberOf
key="att.typed"/>
<memberOf
key="att.layer.log"/>
<memberOf
key="att.layer.vis"/>
<memberOf
key="att.layer.ges"/>
<memberOf
key="att.layer.anl"/>
</classes>
<content>
<rng:zeroOrMore>
<rng:choice>
<rng:ref
name="model.annotLike"
/>
<rng:ref
name="model.appLike"
/>
<rng:ref
name="model.editLike"
/>
<rng:ref
name="model.graphicPrimitiveLike"
/>
<rng:ref
name="model.layerPart"
/>
<rng:ref
name="model.milestoneLike.music"
/>
<rng:ref
name="model.transcriptionLike"
/>
</rng:choice>
</rng:zeroOrMore>
</content>
</elementSpec>