2013/7/31 Andrew Gray andrew.gray@dunelm.org.uk:
Hi Nicholas,
a) Yes, it is about the person and the aliases together. As a general rule, it's one article per person, not per name.
b) Different names is a quirk of the Wikipedia background - these default to the title of the Wikipedia article on that person, and there's no agreement on whether to put the article under the person or the more famous pseudonym.
FYI, there is now a property for pseudonyms ( http://www.wikidata.org/wiki/Property:P742 ).
d) I think the initial assumption was that there was a 1=1 match, but if there are multiple musicbrainz id's representing facets of the same entity, then Wikidata will support adding several.
It is possible to put several IDs coming from the same database. Actually, I'm trying to do this with multiple VIAF codes referring to the same author, and it could also become a "feedback" to the original database.