Your "concert dress" *is* black shoes... Winter Squall shoes from Lands End. (You *did* know you were in the back row... you didn't know that those 'tights' you grabbed from the drawer were the weird ones with the flame pattern you'd gotten on a lark and you were *glad* to be in the back row with a looong skirt )

YOu're *expected* to be wearing the Winter Squall shoes under the otherwise office dress