Alleluia Nativitas References Images Alleluia Nativitas music by Pérotin Ask Anything Homework Help Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: counterpoint/ Counterpoint in the Middle AgesIn his three-part Alleluia Nativitas, the voices are in different rhythmic modes, and they are also distinguished by different phrase lengths, consisting of more or fewer repetitions of the rhythmic pattern. Read MoreIn his three-part Alleluia Nativitas, the voices are in different rhythmic modes, and they are also distinguished by different phrase lengths, consisting of more or fewer repetitions of the rhythmic pattern. Read More