The definition of time in medieval music is very broad, and it is generally inconclusive. Medieval music in western Europe usually refers to the music culture from the 5th century to15th century (before the Renaissance), that is, the music culture between ancient music and Renaissance. From the perspective of appreciation, the music in this period was mainly for the purpose of religion, which may be a bit boring for those who are interested in enjoying classical music.
Talking about the music theory in the Middle Ages can be discussed from several aspects, such as the mutual development of Catholicism and Gregorian chant, the simple notation in the Middle Ages and the development process of folk music.
Extended data;
About11-13rd century, it was the heyday of medieval music. During this period, the western social history showed an increasingly strong demand for independent development in geography, politics and culture, which was accelerated by the separation of the eastern and western Christian churches in 1054. 1 1 Since the 20th century, the productivity of western society has been obviously improved, cities have sprung up and trade has developed.
Parallel to economic development is cultural development. 12 and 13 centuries, a number of earliest universities in Europe, such as Paris University and Oxford University, were established one after another, with active academic atmosphere, flourishing literature and poetry of various genres, and Gothic cathedrals with new spiritual symbols mushroomed all over Western Europe. Musically, with the split between the East and the West and the powerful secular monarchy in the West, church music gradually expanded from Rome to the north of the Alps.
Reference source; Baidu Encyclopedia-Medieval Music