Perhaps this is not the best way to do things....I had to restore my phone after a failed iOS9 upgrade attempt (it disabled my cell service) so staying on iOS8 - however it erased all my music. I figured I could just fire up the Apple Music app and select what songs/albums I want to have for offline use - I'm going to an area next week with no cell service. So I went down my list of albums and songs and selected about 3,000 songs for offline use. Boy was that a mistake. It's been running for 15 hours so far and has only downloaded about 900 songs. Is this normal behavior? I guess the better bet would be to hook my phone up to my computer and transfer a playlist of songs that are stored on my computer over.