Native American/First Nations tribes of the Canadian coast and Northwest U.S., such as the Tshimshian, Makah, Ouiluete, Kwakwaka’wakw and Nuu-chah-nulth, is rhythmically complex and sometimes features multiple voices singing different tones at the same time (“polyphony,”) which makes it unique among Native American and First Nations forms. It also features more diverse instrumentation than other Native American/First Nations music,
including many kinds of drums, horns, whistles and flutes.