Jean Cocteau

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.