If you are a subscriber:
1. Click any track.
2. Click the “Cloud” icon to download the song into the memory of your mobile device.
If you are not a subscriber:
1. Go to “My Tracks / My Mp3s.”
2. Click the “Cloud” icon to download the song into the memory of your mobile device.
You no longer need WiFi or cell reception to play the track. Now it will appear in the "My Downloads" folder.