Music that is categorized as part of the Indianist movement in American music (ca. 1890-1925) typically evokes Native American culture, ritual, story, or song through compositional gestures. It may also incorporate Native American tunes. Amy Beach (1867-1944) is considered to have composed five Indianist works, but her Theme and Variations for Flute and String Quartet, op. 80 has not been included as one of them. This thesis rethinks categorization of the piece, seeking the "Indian" in it through examination of its gestures, instrumentation, and relationship to contemporary Indianist compositions.