Place a Spotify, SoundCloud or Bandcamp link to an album or track in a markdown file and it will beautifully pull in the necessary data.
The plan is to eventually support MusicBrainz links for albums that aren't on Spotify.
Copy this whole directory to your user/plugins directory.
In the plugins settings, fill in the Client ID, Client Secret, and Redirect URI from your Spotify Application.
Thanks to the Grav Team for writing the MediaEmbed plugin. I used this as a template to get things running at first.