The document provides information about music of the Medieval period from 700-1400 AD. It discusses the objectives of understanding Medieval music performance practices and listening to vocal and instrumental works. Characteristics of Gregorian chants are described, such as being monophonic, using free meter and modal scales. Troubadour secular music is also discussed. The document provides details about the famous Medieval composer Adam de la Halle, who wrote the earliest surviving French play with music, Le Jeu de Robin et de Marion.