The flamboyant facade of this venerable theatre is fitting for the extravagant dramatic flourishes that are integral to the traditional performing art of kabuki. Check the website for performance details and to book tickets; you'll also find an explanation about cheaper one-act, day seats.
A full kabuki performance comprises three or four acts (usually from different plays) over an afternoon or an evening (typically 11am to 3.30pm or 4.30pm to 9pm), with long intervals between the acts. Be sure to rent a headset (single act/full program ¥500/1000) for blow-by-blow explanations in English, and pick up a bentō (boxed meal) to snack on during the intervals.
If four-plus hours sounds too long, 90 sitting and 60 standing tickets are sold on the day for each single act. You'll be at the back of the auditorium but the views are still good. Some acts tend to be more popular than others, so ask ahead as to which to catch, and arrive at least 1½ hours before the start of the performance.