Some monasteries quickly understood this link between zither and liturgy at the time of the liturgical reform, in the 1960s, and it was Brother Patrice, a monk from En Calcat, who invented modulators (levers allowing one to go from major to minor ) and transforms the folklore zither into a liturgical instrument. He added five chords and the twelve-chord psaltery was born and it’s still going strong, thank you! With these 24 classic chords, it can accompany all the tones of psalms and antiphons.