Excerpt from Musical Encyclopedia, Vol. 1: Great Composers, a Series of Biographical Studies In a word, then, the main Characteristics Of modern music as Opposed to medieval are rhythm, harmony, and the key system. The evolution Of our modern system Of harmony from the weird organum Of Hucbald, and Of our keys from the ecclesiastical modes, was SO gradual that it is impossible to fix upon any date as the precise moment when one gave way definitely to the other. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.