Really liking something you found in Roon? Add it to your Favorites by clicking the heart icon  wherever you see it -- on an album screen, next to tracks, artist screens, works, composers, it's everywhere!

After you've favorited something, you can access it by viewing it in your Roon library under 'My Library', and clicking the Favorites button. Clicking the Favorites button (heart icon) will filter your library to view only your favorited tracks/albums/artists/composers/compositions. 

This heart icon actually has three states, which are stepped through by each click.

The "Banned" state means that the item to which it applies (e.g. a track, an album, or a work) will never be included in a queue created by Roon Radio (specifically, the Banned state prevents that item from appearing in Roon Radio queues.)