Gregorian chant is the sacred chant of the Latin Church, inspired by Roman tradition. It experienced its golden age under the Carolingians, from the 8th to the 11th century. Entering into competition with polyphonic singing, it became marginal after the 16th century.
It was rediscovered and restored in the 19th century under the leadership of Dom Guéranger, abbot of Solesmes, who collected and analyzed ancient manuscripts collected throughout Europe.
Since the pontificate of Pius X (1903-1914), he has been considered“the proper song of the Roman liturgy”, as recalled by the Second Vatican Council (1962-1965).