Toby Marlow and Lucy Moss' score is immediately hummable in the way that only derivative disco music can be. The often witty book, built around a competition among the six wives of Henry VIII, borrows a lot from 'RuPaul's Drag Race' while offering yet another #MeToo story. Those theatrical commonplaces aside, 'Six' is a needed antidote to 'Anastasia,' 'Frozen,' 'Jagged Little Pill,' 'Wicked' and other pompous shows of female empowerment.