“For reasons too discouraging to explore, the New York City Ballet commissioned a work from Boris Eifman for its year-long Balanchine centennial celebration, now winding down. And Eifman came up with Musagète (Leader of the Muses), a 50-minute extravaganza that—despite its appalling notions of choreography, biography, and their possible relationship—claims to be a homage to the master. This is an event that could only have occurred over Balanchine’s dead body.”