Music Encoding Initiative Guidelines

Module

Attributes

compact
full definition
by class
by module

cue, def, metcon

cue(optional) Value conforms to data.BOOLEAN.

def(optional)Provides a mechanism for linking the layer to a layerDef element. Value conforms to data.URI.

metcon(optional)Indicates the relationship between the content of a staff or layer and the prevailing meter. Allowed values are: "c" (Complete; , conformant with the prevailing meter.), "i" (Incomplete; , not enough beats.), "o" (Overfull; , too many beats.)

direct children

def(optional)Provides a mechanism for linking the layer to a layerDef element. Value conforms to data.URI.

att.cue(MEI.shared) Attributes that describe "cue-ness".

cue(optional) Value conforms to data.BOOLEAN.

att.meterConformance(MEI.shared) Attributes that provide information about a structure’s conformance to the prevailing meter.

metcon(optional)Indicates the relationship between the content of a staff or layer and the prevailing meter. Allowed values are: "c" (Complete; , conformant with the prevailing meter.), "i" (Incomplete; , not enough beats.), "o" (Overfull; , too many beats.)

MEI.sharedComponent declarations that are shared between two or more modules.

cue(optional) Value conforms to data.BOOLEAN.

def(optional)Provides a mechanism for linking the layer to a layerDef element. Value conforms to data.URI.

metcon(optional)Indicates the relationship between the content of a staff or layer and the prevailing meter. Allowed values are: "c" (Complete; , conformant with the prevailing meter.), "i" (Incomplete; , not enough beats.), "o" (Overfull; , too many beats.)

Available at

compact
by class
by module

layer, oLayer

att.layer.log

layerAn independent stream of events on a staff.

oLayerA layer that contains an alternative to material in another layer.

MEI.cmnCommon Music Notation (CMN) repertoire component declarations.

oLayerA layer that contains an alternative to material in another layer.

MEI.sharedComponent declarations that are shared between two or more modules.

layerAn independent stream of events on a staff.

Constraints

@def attribute should have content.

The value in @def should correspond to the @xml:id attribute of a layerDef element.

Declaration


                                 <classSpec ident="att.layer.log" module="MEI.shared" type="atts">
                                    
                                    <desc xml:lang="en">Logical domain attributes.</desc>
                                    
                                    <classes>
                                       
                                       <memberOf key="att.cue"/>
                                       
                                       <memberOf key="att.meterConformance"/>
                                       </classes>
                                    
                                    <attList>
                                       
                                       <attDef ident="def" usage="opt">
                                          
                                          <desc xml:lang="en">Provides a mechanism for linking the layer to a layerDef element.</desc>
                                          
                                          <datatype>
                                             
                                             <rng:ref name="data.URI"/>
                                             </datatype>
                                          
                                          <constraintSpec ident="check_defTarget_layer" scheme="schematron">
                                             
                                             <constraint>
                                                
                                                <sch:rule context="mei:layer/@def">
                                                   
                                                   <sch:assert role="warning" test="not(normalize-space(.) eq '')">@def attribute should
                                                      have content.</sch:assert>
                                                   
                                                   <sch:assert role="warning" test="every $i in tokenize(., '\s+') satisfies substring($i,2)=//mei:layerDef/@xml:id">The value in @def should correspond to the @xml:id attribute of a layerDef
                                                      element.</sch:assert>
                                                   </sch:rule>
                                                </constraint>
                                             </constraintSpec>
                                          </attDef>
                                       </attList>
                                    </classSpec>