“That girl, who was myself, is seeing a great landscape — untrammeled,” Martha Graham said of Frontier: American Perspective of the Plains (1935), her first collaboration with Isamu Noguchi, now gloriously and ecstatically on view at the welcoming entrance to Art for the Millions: American Culture and Politics in the 1930s, exhibition curated by Allison Rudnick at The Metropolitan Museum of Art. [Frontier, filmed by Julien Bryan and Jules Bucher, courtesy Martha Graham Resources.]