What do Henry VIII’s wives, a Rastafarian musical icon and a drag queen have in common? They are all the subjects of new stage shows that are heralding a golden age of the British musical. Let’s start with the court of Henry VIII. A pair of friends at Cambridge University, Toby Marlow and Lucy Moss, decided to write their own musical four years ago because the student theatre society couldn’t afford to pay the royalties for an existing one. They based it on the life stories of the six women who were unfortunate enough to marry Henry VIII. Six, as this debut effort came to be known, opens on Broadway this week, with huge advance ticket sales already achieved. There are various reasons for Six’s cataclysmic flight to fame: it’s the ultimate feminist power piece — six women righting their wrongs, a natural product of the #MeToo movement (though it was penned before #MeToo); the story is delivered — not unlike Hamilton’s use of hiphop — through street-sharp lyrics and patter that dazzle; and the production had a meticulously calculated route to the West End.