The play, to be fair, does not aspire to be encyclopedic. It is, like Farinelli's operas, an entertainment-and one specifically for Rylance to play with all manner of facial expressions and tones. If the story palls, look around you. Director John Dove uses every bit of the theater, with actors going up and down the aisles, and musicians, led by Robert Howarth on harpsichord, placed in the gods. Jonathan Fensom's design is your own visual test for the evening: The theater is lushly paneled, as if we are indeed at court, with descending screens signifying different settings. But the other bit of truly crucial magic is Paul Russell's lighting. Six chandeliers filled with candles act as the stage's main illumination. There are candles all around the stage in boxes. Where is the other light coming from? Seemingly from the existing, beautiful lighting of the Belasco, which is variously raised and lowered in intensity. Perhaps Russell has hidden other lighting genius more surreptitiously. Whatever, your eyes and ears will leave Farinelli happy indeed.