I forgot a step that I had completed to get the filter I'd referenced above, and that is creating a virtual tag that meets the criterion (Edit->Edit Preferences->Tags(1)->Define New Tags). It was a long time ago. Sorry.
So, for my example, I created a T=A virtual tag with the formula $If(<Title>=<Album>,y,) which puts a y in the tag for any track where the title matches album name. Then I filter on my new Tag (T=A is y)