Whatever one may think about Andrew Lloyd Webber, the man is game. Unlike, say, Samuel Beckett, who was relentlessly litigious over productions that diverged from his vision (“Anybody who cares for the work couldn’t fail to be disgusted by this,” he wrote about JoAnne Akalaitis’s set-in-an-abandoned-subway-station Endgame at ART in 1984), Lloyd Webber, at age 76, seems basically up for anything when it comes to new takes on his splashy musical blockbusters.