I wouldn't recommend it. I have done that and I used sharpies to draw the staff. If you don't use any other marker over it, it's fine. As soon as you use eraseable marker over it and then erase it, for some reason it also erases the permanent marker

. It turns into a perfectly useless "staff" after a point (if you can really still call it that).
I finally broke down and ordered a board that has a staff on it, to which eraseable markers can be applied. That works like it's supposed to.
ps -- it's a funny story that one of my students who realized that the permanent marker gets erased in this way, when she had a substitute teacher in school, the sub accidentally put permanent marker on the white board. Well, my student remembering what happened to my staff told him to write over it with eraseable marker and then erase ... it worked like a charm

.