Can't Re-Download – GarageBand Review

I've been using GarageBand for a lot of my projects for a while now. But most recently, I deleted it off of my IPod because it was taking up space on my data. Now my IPod has a reasonable amount of storage on it, but it's saying that the app isn't compatible, even though it was on my IPod for nearly a year now. When I first downloaded it, it simply just downloaded an earlier version of the app, and nothing else. Please help me with this. ?
Review by %7under% on GarageBand.