noun (plural organa /ˈɔːɡ(ə)nə/)
1An early type of polyphonic music based on plainsong with an accompaniment sung below or above the melody.
- In an organum piece, a fragment of an older melody is slowed down to the point where it almost becomes a drone.
- In 1620 he published his Novum organum, presenting his philosophy of science in the form of aphorisms, many of them memorable.
- They bring in a full drum kit for ‘Painted Chariot’, but it's mild, stumbling rock, with an organum interlude plopped in the middle for continuity.
1.1A part sung as an accompaniment below or above a melody.
- Guido's treatise Micrologus also explains how to sing a second voice accompanying a plainchant melody, creating two-part organum.
Latin, from Greek organon, literally 'instrument, organ'.
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