Actually we won't suggest that you use TuneFab WeTrans to transfer Apple Music between PC and iOS devices. It is because Apple Music tracks are DRM protected. Even though you can transfer the music from PC to iOS device or from iOS device to PC, the transferred music will still be DRM protected. You cannot play the songs if your device is not authorized.
If you need to remove DRM from Apple Music songs, you can use our TuneFab Apple Music Converter, which is able to remove DRM from Apple Music.