I think there are common strings here: Wryness, irony, artistic sarcasm, misunderstood or unpopular genius.
I love unrecognized or unpopular genius. I can sniff it out everywhere I go. As Sean Bedlam says "I swim in an ocean of unoriginality" and that's where there are island resorts like Randy Newman, but they are all still only visited by a very small percentage of desperately loyal and adoring fanatics. The other 95% of people could just as well pass it by and not see it.