@facs(optional)Permits the current element to reference a facsimile surface or image zone which
                              corresponds to it.
                           One or more values from  data.URI, separated by spaces.
                            att.facsimile 
                      | 
                  
                  
                     
                        @label(optional)Provides a name or label for an element. The value may be any string.
                           Value of datatype  string.
                            att.commonPart 
                      | 
                  
                  
                     
                        @n(optional)Provides a number-like designation for an element.
                           Value conforms to  token.
                            att.common 
                      | 
                  
                  
                     
                        @translit(optional)Specifies the transliteration technique used.
                              
                              
                              
                           Value of datatype  NMTOKEN.
                            att.lang 
                      | 
                  
                  
                     
                        @x(optional)Encodes an x coordinate for a feature in an output coordinate system. When it is
                              necessary to record the placement of a feature in a facsimile image, use the facs
                              attribute.
                           Value of datatype  decimal.
                            att.xy 
                      | 
                  
                  
                     
                        @xml:base(optional)Provides a base URI reference with which applications can resolve relative URI
                              references into absolute URI references.
                           Value conforms to  data.URI.
                            att.commonPart 
                      | 
                  
                  
                     
                        @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 of datatype  ID.
                            att.id 
                      | 
                  
                  
                     
                        @xml:lang(optional)Identifies the language of the element's content. The values for this attribute are
                              language 'tags' as defined in BCP 47. All language tags that make use of private use
                              sub-tags must be documented in a corresponding language element in the MEI header
                              whose
                              id attribute is the same as the language tag's value.
                           Value of datatype  language.
                            att.lang 
                      | 
                  
                  
                     
                        @y(optional)Encodes an y coordinate for a feature in an output coordinate system. When it is
                              necessary to record the placement of a feature in a facsimile image, use the facs
                              attribute.
                           Value of datatype  decimal.
                            att.xy 
                      |