Also, for the purposes of the article, you can even just discard the music analogy and focus on the four parts: you need some theory, you need time to work on y

Also, for the purposes of the article, you can even just discard the music analogy and focus on the four parts: you need some theory, you need time to work on your own projects, you need time to work on production code, you need to actually ship. We need a better balance of those things. But I do think the analogy works well--it's like PG's analogy of hackers and painters.