A person who opposes or rejects harmonious musical principles or someone who deliberately creates dissonant or clashing sounds.
From anti- (against) + harmonist (one who practices or believes in harmony). A term that emerged with modern and experimental music movements that rejected traditional harmony.
Composers like Schoenberg were antiharmonists in a way—they ditched traditional pretty harmonies for atonality and dissonance, revolutionizing what music could express and making people rethink what sounds 'right.'
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