Mine would be creating pen and paper ciphers for my made up secret communication needs.

  • so local media is the only solution for me

    I’d recommend installing a Plex server at home and using it to manage all your music. You can use the Plexamp app (available on Android, iOS, Windows, Mac and Linux) to stream music from your server, and the mobile apps have the ability to download playlists for offline listening. The basic features in Plexamp are free.

    IMO streaming your own media is the best of both worlds. Plexamp has a bunch of awesome features too.