In solid state physics, features of crystals are explained by using the concept of energy bands, the existence of which is shown to be a result of the periodic order of the atoms in a crystal.
When this periodic order breaks, e.g. when the crystal melts, what does happen to energy bands? Do they still exist? If no, why do some features persist? (e.g. molten metals are shiny and conduct electricity like solid metals.) if yes, how can they exist without that periodic order of atom positions?