John Nottle wrote:

>Could somebody answer a quite trivial but vexing question, please.  Does
>the stem of the note B natural, treble clef, middle line, go up or down?
>Is there a rule determining such?

If it is a stand alone note on the middle line of the staff the stem may
either go up or down.  If it is connected by a bar to other notes, you may
decide if more notes are above or below the midline, and make the stem go
in the best place.  Tossing a coin helps the decision making process.

Mimi Ezust