Longtime Denver chef Gene Tang’s LoDo restaurant, 1515, and its Rewind Lounge will close on May 31 after 21 years in business. The white-tablecloth spot once received 3 1/2 stars (out of four) in a 2005 Denver Post review. By the end of its tenure at 1515 Market St., Tang is still serving lobster Thermidor and eight-course dégustation menus, as well as an Elvis’ peanut butter, banana and chocolate terrine for dessert. Tang is retiring after 48 years in restaurants.