Let's try a list of JSON objects like so:

    {
      playlistId: "37i9dQZF1DZ06evO26OEfK",
      alwaysAtTop: [
        "spotify:track:2XYNq7LIQrh82m7LPiPN8w",
        "spotify:track:6LdpVTJzigyi2vbKe8mZAr"
      ],
      suppress: [
        "spotify:track:2JeaPqOw6FS7jz6ytEq7T3"
      ],
      alwaysInclude: [
        "spotify:track:41onDks2UPbyjer5fMeUWf"
      ],
      overrideDescription: "Required listening for sucka MCs: An introduction to Run–D.M.C."
    }

- `alwaysAtTop` is a list of tracks that should always be at the top, whether they are already in the playlist or not.
- `suppress` is a list of track to always omit.
- `alwaysInclude` is a list of track to always include in the playlist, not necessarily at any particular position.
- `overrideDescription` is the format description that should be used in place of the default description.