I produce music using Logic or Ableton. I used to be able to export .wav .aif or .mp3 files to my desk top, drag them to an apple playlist, and listen to them on any device. Now when I drag a self made track to an existing or new playlist I get the fallowing error: I have tried to upload the tracks to iCloud by clicking the three dots and choosing add to iCloud library. This seems to work because the option disappears. Also, I can view the tracks on my recently played list on my iPhone. When I try to upload the playlist however I keep getting the same error. Does iCloud not support .wav or .aif files? Does it only support purchased tracks from iTunes? As a DJ I buy music in multiple formats from multiple venders and used to use apple playlists to organize the tracks and burn them in order on CDs if need be. Please tell me if there is an ex fix or a better solution.