- Benedictine Monks of Santo Domingo de Silos
- Janez Bole & Slovenski Madrigalisti
- Graz Gregorian Chants School O
- Fribourg Children's Choir, Schola Feminine & Schola voix d'hommes
- Hortus Musicus
- Choralschola & Capella Antiqua München
- Choir of The Vienna Hofburgkapelle, Josef Schabasser, Benedictine Monks of the Wandrille de Fontenelle Monastry & Dom Lucien David