Discuss the roots and evolution of Native American flute music over the course of the twentieth century. Be sure to include information on 1) the tribal tradition(s) in which the contemporary flute originated, including its performance context and aspects of its construction; 2) the principal figures and philosophies of the flute “revival” in the later 20th century; 3) musical details and styles of contemporary flute music; and 4) continuing changes and challenges within this tradition today.