Feature Request: Search queries

It would be nice to have 'up' and 'down' buttons to allow you to form search queries more easily. Even nicer would be some kind of grouping tool, like parentheses, so you could do something like:

Quote:

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Artist... doesn't contain... <name> AND
( Credits: Band... contains... [ OR
Credits: Band... contains... ] )

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I'm trying to improve the consistency of my database to help it give me more accurate search results, and sometimes finding the bad data requires more sophisticated queries than can be easily formed using the tools available.

This might be the sort of feature request best deferred past the point where you change the database engine to one that's SQL based. It would be much simpler to implement then, I'd guess. :)