Records & CDS should be sorted by artist, when known, not by category.

That is what I do, no value judgements.

Except for collections. Those are under 'collection: blues' or 'collection: folk' alphabetical by catagory and then by title within catagory. That part gets a little fuzzy sometimes but I haven't come up with a better way and the way I do it has been working for me for many a year now.