What characterizes the medieval motet?

The medieval motet is characterized by its use of a short, repeated tenor line, known as the "tenor" voice, which provides a foundational melodic structure over which contrasting upper voices are woven. This style allowed for greater complexity and richness in vocal texture, as composers began to explore polyphony during the medieval period. The upper voices often contain different melodies and texts that harmonize with or embellish the tenor line, resulting in a more intricate and expressive musical form.

In this context, the choice that states it featured a short, repeated tenor line with contrasting upper voices accurately captures the essence of the medieval motet, reflecting its development and prominence in sacred and secular music of the time. The interplay of these elements fosters a distinct sound that sets the motet apart from earlier musical forms.