I remember the rare times that I hit all the right notes singing. And how surprised I always was that I did, and even more surprised that I knew I did. I thought, if I could identify when I was, by chance, correct, shouldn't I know (or be able to teach myself) how to sing perfectly all the time? I always knew exactly what to learn or read or memorize to perfect schoolwork (whether or not I ended up acting upon it), and never found homework solutions by accident -- or when it happened, it was tremendously unsatisfying. But singing was a black art in my mind, and stumbling upon it, once in a while, without intent or understanding, was a thrill.