Hello all, I'll be going on vacation overseas in a couple weeks, and I wanted to download some movies to my phone. However, it looks like I've gone and used up most of my 64gb of storage. Most of it seems to be in Music, so I'd be willing to remove some songs, but I'm unclear: if I choose to "delete" a song from the phone's storage section, could I still download it from iCloud? Also, somehow my phone has 10gb just from "books", even though I only have two books downloaded on the device. Does this sound correct???