alastair/python-musicbrainz-ngs — pull request #46 by JonnyJD (2012-03-20 16:12:20+00:00)
Title: concatenate search fields with AND

Currently search fields are concatenated with spaces,
which default to the OR operator.

This is fine for a quick manual search on the web,
even returning close matches, when no good ones are found.

However, when using this in a library, you commonly want exact searches.
You don't want to check afterwards if the results have anything to do
with your query. You want to know how many releases with these exact
properties are in the databse and want to do something to every one of
these.

So the default is set to concatenating with AND.