I liked the article, and most of the comments. In one of your comments you used the word "(improvisation)", that is something that for some reason seems to be being intentionally driven out of people over the last few decades. I think because it is to closely associated with individualism, if not everyone can do it then it has to be bad so we do away with it, it does not meet any hard and fast rules for being able to easily judge if it when it is done. If you can take a piece and have it meet all the "criteria" of computer perfection then it is good, if you improvise and add your own individualism to a piece then you did not do the music justice. Which one is better, the not so easy to judge one.