iCloud has a pair of capabilities—automatic downloads and re-downloading previous purchases—that apply to music from the iTunes Store, apps from the iOS App Store (and, in Mountain Lion, the Mac App Store), and books from the iBookstore. (Re-downloading applies to TV shows, as well—but only in the United States—as well as to movies, with some restrictions.) These features work almost exactly the same regardless of the type of media, and the controls for turning automatic downloads on or off for Music, Apps, and Books are together on a single screen.

For some reason, Apple decided to give the music-related download capabilities the collective name “iTunes in the Cloud,” but didn’t come up with names for the corresponding features for other media (that is, there’s no “Apps in the Cloud” or “Books in the Cloud”) or a generic term to cover all the capabilities as a whole. This is odd, because if I explain how to use iTunes in the Cloud, then explaining how to do the same thing with apps and books would consist of saying, “Do the same thing with apps and books.”

So, despite Apple’s insistence on splitting these capabilities up in their marketing materials, I’m going to treat them all together—as they should be—right here. I also talk about how to Use iTunes Match, a paid service that extends iTunes in the Cloud to work with all your music, regardless of whether it came from the iTunes Store.