In researching solutions, I found this discussion at apple.com in which somebody suggests "damaging" the iTunes library. This lead to a very useful post which discusses how iTunes uses the data it has to recreate what it doesn't have and gives instructions on how to damage (without deleting) the file -- spoiler: erase the data, leave the file.
To help users get the most from NPR's rich archive of content, the app will surface stories we think you'll like. In the right column on story pages we'll show you other stories you might want to see based on the one you're already looking at. Just below the playlist, the app will offer you stories you may like based, in part, on the items you have in your iPad iTunes library (see image above).
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