Bluebeard is a good one too; it ruminates on the nature of art and how/why meaning is assigned to it.

Thank you for your comment. I like Vonnegut (my favorite is Hocus Pocus) but hadn't read Bluebeard. I only started it and I'm already enjoying it significantly.

Loved Bluebeard as well. A mature Vonnegut who knew how to use motifs from his earlier work. And for an old guy, he kept his writing fresh and energetic. The miniature story of the dog without a tail always comes back to me.