you can download it to your device and play from there.

The problem is that the YT interface is terrible, always starts you back on the screen to get you to sign up for the premium and the playback is all screwy...starts in the middle of an album and won't go back to the beginning and a bunch of other silly stuff. Seems designed to make it so hard to use it to play your own stuff that you will get the premium.

Since I have prime, I started to use it. You can download pretty much anything you can stream and play disconnected from what I see. There are a few things I have that I can't find on prime, but most of it is covered.

Would like to know a good music player app though because I have a kid who's phone is not web connected that I'd like to give her the ability to listen to music on (I can connect to add apps but don't leave it connected).