Apple Music App
Hi Stephan,
In Apple Music you can also export individual playlists as XML or M3U etc. On the Mac, just click the playlist and go to File -> Library -> Export Playlist... and select XML from the drop-down.
Then in MIXO, select this exported XML in Import/iTunes and click 'Import iTunes'.
MIXO will then import new tracks and simply update any existing tracks.
Only new tracks are analysed, so it's super-fast if you're just updating existing tracks (because perhaps you've only edited a playlist or metadata etc).
I hope this helps!
Remko