Organum (Lat., from Gk. organon: ‘instrument’, ‘implement’, ‘tool’)
- Norman E. Smith,
- , revised by Rudolf Flotzinger
- Fritz Reckow
- and Edward H. Roesner
A type of medieval polyphony. Early meanings are connected with the organ, but later only with ‘consonant music’. While retaining the collective meaning of ‘polyphony’ in general, from the 12th century it was used specifically to refer to music with a sustained-note tenor (usually a pre-existing part) and more mobile upper part or parts....