fugleman

The member of a military group who leads the way or demonstrates drill; hence, someone who keeps the beat or timing, and/or demonstrates motions in other contexts.

A "Haka" is the native dance, answering to the corroboree of the Australian aboriginals, and we were anxious to see it. […] Later in the evening, however, the complaisant Herekiekie entertained a small and select party at a "Haka" in his "whare" or house (pronounced wharry). It was exactly what I expected. The performers, all male, stood in a row, one, slightly advanced, acting as fugleman. They shouted and gesticulated with the most hideous and revolting gestures, grimaces, and yells.

A political leader, or a ringleader.