"A second date in the text probably refers to an event 336 days later. Three lords are shown preparing for this ceremony; one of them, the frontally portrayed figured wearing the largest feathered headdress, is also probably Chan Muan (north wall, upper register). The culminating ceremonial procession is displayed on the lower register of the room, complete with elaborately costumed members of the court and nine musicians playing gourd rattles, a wooden drum, and turtleshells. The same three lords are shown dancing in the center of the procession (south wall). Many of the other attending lords are identified by the title of cahal (or sahal), which connotes their position as secondary rulers."
Robert Sharer, The Ancient Maya, p. 255