The more serious tone reflects the more serious concept of urban decay in a post-Thatcherite Britain. It no longer conjures images of faeries dancing idyllically around fly agaric. It replaces those with flies buzzing hungrily around a cardboard shack. It's gloomy but it's a type of progression.
Songs of Note: The One Piece Puzzle; Womb of the Worm
3½ simple solutions out of 5