In A.D. 1100, an improvement known as the "florid organum" occurred, as inspired by a monastery in south-central France known as St. Martial. In the "florid organum" the original tune is sung in long notes accompanied by a voice that sings many notes for each original one, emphasizing the perfect consonances (fourths, fifths and octaves) | In A.D. 1100, an improvement known as the "florid organum" occurred, as inspired by a monastery in south-central France known as St. Martial. In the "florid organum" the original tune is sung in long notes accompanied by a voice that sings many notes for each original one, emphasizing the perfect consonances (fourths, fifths and octaves) |