21. The " Organum for Paul Fromm " was composed by John Harbison in his honor. 22. Kircher's earlier Arca Musarithmica was a music composing device of similar design to the Organum . 23. This problem was somewhat overcome with the use of a second type of " organum ". 24. At that point the organum is finished, and the'Deo Gratias'will be sung choraliter. 25. The history of organum would not be complete without two of its greatest innovators, L�onin and P�rotin. 26. Saint Martial organum and Paris organum duplum follow from the same principle, but in a different form. 27. Saint Martial organum and Paris organum duplum follow from the same principle, but in a different form. 28. Medieval sequences are usually monophonic, certain sequence texts suggest possible vocal harmonization in organum or instrumental accompaniment. 29. Some of the earliest manuscripts with polyphony are organum from 10th century French cities like Chartres and Tours. 30. :Well organon is already Latin, or actually Greek but borrowed directly, or Latinized as organum .
