This is one of the most closely wrought motets in the whole repertoire. The texts are interrelated to an extraordinary degree, sharing phrases, syntactical constructions and rhyme words. Some of these echoes are cunningly placed to mark points of melodic imitation (e.g. ‘et le roussignol chanter’ in the third line of both poems), for the melodies display as many interrelations as their texts.
from notes by Christopher Page © 1990