The motet began as a form of sacred vocal music in several parts; a cantus firmus or tenor, drawn from sacred Latin chant, served as a foundation for one or more upper voices. The French motet was a well-established form by the middle of the 13th century, as were bilingual motets that combined at least one French and one Latin text among the upper voices. Though some attention is paid to melodic structure and the relationship between text and music, this book focuses on the literary artistry of the texts of French and bilingual motets, notably the special features of motets that distinguished them from other medieval lyric forms: the phenomenon of polytextuality. The author analyzes both the interaction of the texts within a motet (when there is more than one texted voice) and the relationship between the texted voice(s) and the tenor.