Q: Using iTunes Match, I have managed to fill my iPad mini to capacity with music. I would like to remove some songs to free up space. The problem is that the iPad lists ALL music, whether on the iPad or not. Is there a way, without weeding through the entire library album by album, to determine what is actually downloaded to the iPad? A: Definitely. In the iOS Settings app, under the Music section, you’ll see a “Show All Music”…