Jacques Berthier (27 June 1923 – 27 June 1994) was a French composer of liturgical music, best known for writing much of the music used at Taizé. Biography. Berthier was born in Auxerre, Burgundy; both of his parents were musicians - his father Paul was the kapellmeister and organist at the Auxerre Cathedral. Learning first from his parents, Berthier was trained in music at the École César Franck in Paris. While there, he was taught by, among others, Edouard Souberbielle and Guy de Lioncourt (whose daughter he married).
https://en.wikipedia.org/wiki/Jacques_Berthier