Dane Rudhyar was a French-born American composer and pianist who began his musical career in the United States in the early 20th century, working primarily in modernist and experimental classical music. His work evolved from early atonal and 'new music' experiments into compositions that incorporated non-Western modes, improvisatory techniques and a philosophical emphasis on music's role in personal and cultural transformation, alongside writings that linked his musical ideas to broader spiritual and astrological themes.