I mean how much time did they really put into this though?

Don't forget that beauty is in the eye of the beholder too. I had never heard the Decemberists before this. Colin has a beautiful voice but I find all their music that I just listened to pretty much mediocre. Mediocrity though is a property of my interpretation of the art and not the art itself.

I don't think a strength of chatGPT though is song lyrics. I actually would love to be able to rap but any rap lyrics it comes up with are overly simplistic in the rhyme structure.

The average lyric across the space of all lyrics is practically the definition of mediocrity.