- The Cistercian Monks of Stift Heiligenkreuz & Ensemble Vox Gotica
- Benedictine Monks of Santo Domingo de Silos, Coro de Monjes de la Abadía de Santo Domingo de Silos & Dom Ismael Fernández de la Cuesta
- Monastic Choir of the Abbey of St. Pierre de Solesmes
- Hubert Dopf S.J. & Schola of the Hofburgkapelle, Vienna
- Quire of Voyces
- Benedictine Abbey Choir Of Munsterschwarzach, Benedictine Monks of Santo Domingo de Silos & Cappella Musicale del Duomo di Milano
- Monks' Choir of the Benedictine Abbey of St. Martin, Beuron & Maurus Pfaff