AI
Artificial intelligence (AI) is intelligence demonstrated by machines, unlike the natural intelligence displayed by humans and animals, which involves consciousness and emotionality. The distinction between the former and the latter categories is often revealed by the acronym chosen.
Art. At least, until we get AI which is actually capable of thought, which I personally don't think is going to happen. Art of any kind is completely inaccessible to the sorts of "AI" being put forward now. Art is fundamentally about conveying a meaning beneath the surface. All art, visual or verbal or otherwise, shares this trait. AI has no feelings, no meaning to share. All it does is meaninglessly mimic the form of art made by others.
Is there a turing test for art, and what's the detection quota?
I think any clear definition will either positively identify lots of AI works as art (along collections of random junk), or deny the qualifier to lots of supposed artworks from human artists.
Coming from theater, I agree it is about "conveying a meaning beneath the surface". Having studied computer science, I note that is very much not in a strict sense, but very vague. It seems to be a feature, not a bug, that everyone in the audience can see something different.
I think you can pretty much present random nonsense, and someone will still find it brilliant and inspiring, and a lot more people will tell you what patterns they saw, and of what it reminded them. The meaning is created in the minds of the observers, even if the creator explicitly did not put another, or any, meaning into the "art".