Literally the first sentence threw up red flags for me:
> Something happened to recorded music over the last twenty-five years that most people can hear, and feel, but almost nobody has the language for.
That is 100% Claude
"we like music in the abstract as a series of numbers" seemed like a nod to AI or quantization general. Now, it might have just been genuine instead of an ironic statement. Also explains an unreadable-to-humans giant table in the middle of the article.
Also, an existing creative who understood and knew the topic would just call it what the rest of the industry calls it; quantization and autotune, not "gridification", that's some term they've seemingly made up together with Claude, and it sure sounds like it.
The comma after "hear" reads as non-LLM to me