Frontier is a solo dance choreographed by Martha Graham to music by Louis Horst. The set was designed by Isamu Noguchi; Graham created the costume. The work began as an ensemble piece, Perspectives: Frontier and Marching Song also known as Frontiers (Perspective No. 1) and Frontier. The ballet's Marching Song portion was set to music by Lehman Engle. The work premiered on April 28, 1935, at the Guild Theatre in New York City.[1] By the end of 1935, Graham was performing Frontier exclusively as a solo. The piece was the first of her works to explore American identity through an archetypal character.[2]