The purpose of teaching a child to read music is not that they can sit down and rattle off notes but that they understand what they are hearing. My ten-year-old student knows when Haydn is teasing. She doesn't need to be told what to do about it. She can play so that you know where the joke lies, and she does it tastefully without any coaching.

How old were you before you realized that Haydn had a sense of audible humor?