I liked the article, but I think Hofstadter is overrating the philosophical importance of his own subjective experience and emotions here. Just because you had a profound emotional experience listening to human-composed music doesn't mean it's the end of the world or human creativity is ruined if you can get the same feeling from somewhere else. He could probably get the same feelings from the right drugs.

"Spiritual experiences" aren't that rare or objectively profound and Hofstadter would do well not to generalize too much from his own.