I've just upgraded to iTunes 12.7, and there is a new item in the Library section of the sidebar: "Downloaded". When I click on it, I am shown the same set of items that appear in the "Albums" section, but sorted by artist name.
As far as I am aware none of these items were downloaded from the iTunes store: most were ripped from CD with a few downloaded from other online music providers.
What is the purpose of the "Downloaded" section? Is it an error that it is showing a lot of music that was not downloaded?
How might I see a list of music which was actually downloaded from the iTunes store?