I downloaded all my music to my Android device ( Galaxy S4 GT-9515L Value Edition) with Android 5.0.1, 2 days ago I was using Spotify as usual, I close the App and moments later, I opened Spotify and all my music that I have downloaded before it was not available anymore. I only had a couple of songs downloaded but not all. Also I checked the used storage and it is using 3.9GB but my music is not available! , so I don´t know what happened. Can someone help me please?