I'm somewhat worried by the informal use of the term "alphabetical
order" in this thread. In the pure-UTF-8 world of RDF, there exists a
thing called the 'Unicode Collation Algorithm'
http://www.unicode.org/reports/tr10/ and it's much, much, much more
complex than things usually implied by the term "alphabetical order."
There are very good reasons for this complexity (outlined in document
above); if there's anyone who thinks that some of those reasons don't
apply to BIBFRAME, I'd love to hear them.