The Seven Great Hymns of the Mediaeval Church is a collection of hymns that were widely popular in the Middle Ages. The author of the book is anonymous, but it is believed that the hymns were written by various composers and poets from the 8th to the 13th century. The hymns are considered to be some of the most beautiful and moving pieces of sacred music ever written. They are still performed today in churches and concert halls around the world. The...