Mouez Ar Jakez "(Voices of Jacques in Breton) is the vocal group of the Breton Association of Friends of Santiago de Compostela. The choir was created in 2004 by pilgrims, for whom the discovery of the musical heritage of Santiago de Compostela was a way of continuing their journey. They give concerts and perform at meetings, gatherings and other events related to the pilgrimage to Santiago de Compostela.

Since 2014, thanks to the teaching of Marcel PERES, artistic director of the Organum ensemble and CIRMA in residence in Moissac (Tarn-et-Garonne), the choir has acquired a repertoire of early, liturgical and sacred music.