Three forms of poetry and music that were together called formes fixes. They were all the rage in thirteenth century France. Each of them consist of verses and refrains that are ordered in their own specific way. The use of them stopped around the end of the fifteenth century.
The liner notes refer to these songs as chansons. That might be because the liner notes are in French, but the writer also goes on about their significance on a much larger scale: for the development of the French chanson in European musical culture. So maybe there are links to the modern French chanson? Certainly, in poetry the rondeau is still a form that is used.