Chance music - composed using procedures of chance.
Conceptualism/experimentalism - music in which traditional musical materials are secondary to a specific concept, process, or ideal.
Electronic music - involves electronically produced or altered sound.
Exoticism/eclecticism - the embracing of rock, pop, and jazz, as well as non-Western musical influences.
Impressionism - a style most closely associated with Claude Debussy that favors coloristic "impressions" over strong melodic and rhythmic content.
Improvisation - music made up on the spot.
Minimalism - focuses on small blocks of musical material, often in repetitive patterns.
Neoclassicism - though often associated with middle-period Stravinsky, it spans the 20th century and refers to a return to the formal clarity of the past.
Neoromanticism - a current trend marking a return to the lushness and emotionalism of the Romantic era.
Serialism - tightly controlled ordering of musical elements, especially the 12-tone row.
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