Gregorian Chant

There are arguments concerning the proper use of the term "Gregorian" in reference to chants. Generally the term refers to any chants written in the church modes, often employing texts from the psalms or the gospels. They developed during the papacy of Gregory the Great (d.604) but generally refer to the Church music of the 11th through 13th centuries. There is a distinction between Roman and Gregorian chants that obfuscates the origin and characterizes true Gregorian chant (that which developed with Gregory I and Gregory II), and Roman chants. There certainly are distinctions...