private void FixupArtist(Artist previousValue)
     {
         if (previousValue != null && previousValue.Albums.Contains(this))
         {
             previousValue.Albums.Remove(this);
         }
 
         if (Artist != null)
         {
             if (!Artist.Albums.Contains(this))
             {
                 Artist.Albums.Add(this);
             }
             if (ArtistId != Artist.ArtistId)
             {
                 ArtistId = Artist.ArtistId;
             }
         }
     }