Medieval music is Western music written during the Middle Ages, including liturgical music (for the church) and secular music (non-religious music). Medieval music includes solely vocal music, such as the Gregorian chanting done by monks and choral music, solely instrumental music, and music that uses both voices and instruments. This era begins with the fall of the Western Roman Empire in the fifth century and ends sometime in the early fifteenth century. Establishing the end of the medieval era and the beginning of the Renaissance music era is difficult; the usage in this article is the one usually adopted by musicologists.