Indicates whether the rating of this album was computed based upon the ratings of individual tracks in the album.
- macOS 10.13+
If the user rates tracks within this album individually, but has not assigned a specific rating for the album, the album rating is computed as the average of the rating of all tracks within the album (tracks with NO rating do not affect this average) and this property is true.
If the user has rated this album, then this property is false.
If the user has not rated the album and has not rated any tracks on this album, this property is false.