Answer :
Final answer:
Complex Organum involves polyphonic settings of texts for two or three parts with preexistent melodies like chants.
Explanation:
Complex Organum refers to polyphonic settings of sacred and secular texts for two or three parts, sometimes with one of the parts a preexistent melody, such as a chant. It emerged in Paris around the late twelfth and thirteenth centuries as composers started writing polyphonic compositions for worship.
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