This has little to do with music, but as an example of how a program has a "random" setting that doesn't make much sense, my KDE rotating background I've found

This has little to do with music, but as an example of how a program has a "random" setting that doesn't make much sense, my KDE rotating background I've found has a really annoying implementation: Suppose I give it 2 directories full of photos, one of those containing 1000 photos, and the other containing only 1. It'll show that 1 photo half the time, because it's randomly selecting between the directories first, and then selecting among the photos in that directory. It should be selecting randomly between all 1001 photos, but that's not how it works.