I think the main problem with the original format shown in the screenshot is the Britney Spears entry. I think once you kill that, everything else will work out just fine. :)

I have yet to even start using my unit, but just from all the reading so far, you may want to consider using the source fields of your top level for special purposes if you're into custom searching. This way you're not left duplicating the artist name for all the fields at that level.

I suspect some crazy people might even track the price they paid for each CD and then play them back from cheap to expensive. :)

The possibilities are pretty endless if you think about it hard enough.