The conductus (plural: conducti) was a sacred Latin song in the Middle Ages, one whose poetry and music were newly composed. It is non-liturgical since its Latin lyric borrows little from previous chants. The conductus was northern French equivalent of the versus, which flourished in Aquitaine. It was originally found in the twelfth-century Aquitanian repertories. But major collections of conductus were preserved in Paris. The conductus typically includes one, two, or three voices. A small number of the conductus are for four voices. Stylistically, the conductus is a type of discant (i.e. note-against-note polyphony). Its form can be strophic or through-composed form. The genre flourished from the early twelfth century to the middle of thirteenth century. It was one of the principal types