Organum (noun) Definition, Meaning & Examples

noun, plural or·ga·na [awr-guh-nuh], /ˈɔr gə nə/, or·ga·nums.
  1. an organon.
  2. Music.
    • the doubling, or simultaneous singing, of a melody at an interval of either a fourth, a fifth, or an octave.
    • the second part in such singing.
noun plural -na (-nə) or -nums
  1. a form of polyphonic music originating in the ninth century, consisting of a plainsong melody with parts added at the fourth and fifth
  2. a variant of organon
Organum (noun) Definition, Meaning & Examples

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