La Trobe University - Library: Medieval Music Database - Annual cycle of feasts of liturgical chant, liturgical polyphony and secular music of the late middle ages.

Kyrie sponse

anonymous

Paris: Bibliothèque Nationale, fonds nouv. acq. français 23190 (olim Serrant Château, ducs de la Trèmoìlle), fol. 30v-31 (lost).

GÜNTHER, Ursula. 'Problems of dating in Ars nova and Ars subtilior', L'Ars nova italiana del Trecento IV: Certaldo 1975, 1978, pp. 292-293.