
Emma T. answered 10/30/20
Composer and Oboist for Music History, Theory and Composition Tutoring
Medieval masses DID use liturgical texts in the services, but not in the same manner as the Renaissance. While the Medieval masses were homophonic and sung by the cantor and church choir, this is not to say that masses themselves did not exist. The Gregorgian chants were the primary genre for this function, and choirs absolutely did sing movements like Kyrie and Agnus Dei in their mass services during the Medieval period. The ordinary prayers were used as text for the chants (and in the Renaissance mass services). The only characteristic that makes the Medieval masses different from the Renaissance services was that they were simply homophonic. In the Renaissance, the SAME liturgical texts were used in musical masses, the difference between the periods being the emergence of polyphony. Throughout the Renaissance, the stylistic characteristics of the mass changed (gradual introduction of homorhythm as opposed to imitation, increase in 3rds and 6ths, etc.), but the liturgical texts and mass movements stayed the same between the Medieval and Renaissance periods.