So, I've got this old Roland EP-9 digital piano that I'm going to sell. But, there are scratches in the surface.
One day, while much younger, my daughter scratched the phrase "Take Me, no you're ugly" into the metal top of the EP-9 (it came from a greeting card about alien abduction). The EP-9 still sounds fine (for a digital piano), but I'm not sure how these scratches will affect its worth. My wife seems to think they could be buffed out, but I have no idea how to accomplish such a thing.
Has anyone ever tried to smooth or buff out scratches on the metal surface of a keyboard?