Abbaye Notre-Dame de Fontgombault Choir,
Benedictine Monks of the Abbey Munsterschwarzach,
Cappella Musicale del Duomo di Milano,
Choir of the Monks of Montserrat Abbey,
Choralschola des Klosters Maria Einsiedeln,
Choralschola of the Abbey Münsterschwarzach,
Santo Domingo de Silos Benedictine Monks