Just downloaded Audirvana yesterday so still learning it. After syncing, all my Apple Music playlist show up but Audirvana won’t play any of them, even ones created by Apple and downloaded to my MacBook Pro. I can play albums I’ve purchased from Apple, HDtracks, Super HiRez, etc. Any help would be greatly appreciated.
There are tracks that can’t be played outside of iTunes (they are thus skipped in Audirvana):
the DRM protected tracks (usually files ending with .m4p), due to the copy protection mechanism, like the ones coming from Apple Music
the iCloud/iTunes Match tracks, using an iTunes specific protocol for retrieving the audio data. To get them to play in Audirvana, you need to download all the songs you want to play thru Audirvana into your computer library by clicking the cloud icon present showing the album is in the cloud, not the library.
the tracks in a Home Sharing library, for same reason (using an Apple non public sharing protocol). If you are using this, there is a workaround that consists in sharing the audio files on the server (to be able to access them from the Finder on the client Mac), and then import the track files in iTunes, or just add the shared folder to the synchronized list in the Library page of Audirvana preferences. This way, standard file sharing protocol is used, and Audirvana is able to access the audio files.
That’s why you can’t play those music outside iTunes.