So, I added a few albums from Google All Access to my Google Music library. When I look at my library, I cannot tell the difference between albums I purchased (prior to my All Access subscription) and albums added from All Access. If I unsubscribe from All Access, what happens to the albums I added to my library from All Access?
That's exactly what happened to me today:
My free trial finished and I lost all my All-Access tracks from my Library and Playlists.
When I called Google's Support they told me the tracks would re-appear whenever I paid the monthly fee, so I did it and fortunately it worked!
Still I don't know how to distinguish between All-Access and Purchased/Uploaded tracks.
I created a similar post: Google Play Music: How can I distinguish between Purchased/Uploaded and All-Access tracks?