No Rush, either, one of the most intellectual of rock bands.
To understand Tull, you must have a incredible working knowledge of English history and folklore.
To listen to BOC, you must understand the abundant references to high ritual magic [courtesy of the ever-odd Sandy Perlman], science fiction [Michael Moorcock], HP Lovecraft, general 'collective subconscious' mythopoeia and world history.
I'm surprised The Butthole Surfers isn't on the list, considering.
Even Type O Negative forces you to consider the implications of their word play and entendres.
Even though The Doors are on there, I'd bet the stoners are listening but not comprehending.
Sheesh.
Agreed