I am getting to the maximum capacity on my SD card for Spotify but I can't seem to reduce the tracks on the Mobile playlist by deleting them to create more space, how do I do this? I am using a HTC M8 with 16GB SD card and I have the desktop Site on My Mac. I have one offline playlist and I use premium. I uninstalled the App and reinstalled it once but this sems to be a bit dramatic. Why doesn't deleting tracks reduce the capacity?