Early avant garde refers to the first wave of radically experimental art music in the early 20th century, when composers deliberately broke with Romantic conventions of harmony, form, and timbre. It centers on innovations such as atonality and the emancipation of dissonance, fragmented and aphoristic forms, novel rhythmic organization, and an expanded conception of musical sound.
Key figures explored noise, new instruments, and unconventional performance techniques, treating timbre and space as structural parameters. Movements like Viennese atonality (Schoenberg, Webern, Berg) and Italian Futurism (Russolo) coincided with French and American experiments (Satie, Varèse, Ives), together laying the foundation for modern and postwar experimental music.
The early avant garde coalesced in the years around World War I. In Vienna, Arnold Schoenberg and his circle (Alban Berg, Anton Webern) abandoned functional tonality, cultivating atonality and the “emancipation of dissonance.” In Italy, Futurists like Luigi Russolo advocated a new music of noise and machines, building intonarumori (noise generators) and publishing the landmark manifesto The Art of Noises (1913). In France, Erik Satie’s anti-academic miniatures rejected Romantic rhetoric, while Igor Stravinsky’s rhythmic shocks in The Rite of Spring (1913) challenged expectations of pulse and orchestral color. In the United States, Charles Ives experimented independently with collage, polytonality, and spatial placement.
Schoenberg formalized the twelve-tone method in the 1920s, offering a rigorous post-tonal system that shaped avant-garde thinking even for composers who did not adopt it wholesale. Anton Webern’s ultra-concise works reimagined form, timbre, and silence. Edgard Varèse promoted percussion, spatial thinking, and sound-mass composition, anticipating electronic and electroacoustic aesthetics. Henry Cowell introduced tone clusters and inside-the-piano techniques, while George Antheil’s mechanical modernism fused propulsive rhythms with an industrial sound-world.
The early avant garde established the conceptual and technical foundations for later experimental movements: serialism, the Darmstadt School, musique concrète, electroacoustic music, noise, industrial, and a broad spectrum of contemporary classical practices. Its redefinition of pitch, rhythm, timbre, and form reshaped 20th-century composition and performance, influencing everything from postwar modernism to underground experimental scenes.