Assumption of the Blessed Virgin Mary | Gregorian Chant About the chant: On November 1, 1950, Pope Pius XII infallibly proclaimed the dogma of the Assumption of the Blessed Virgin Mary. Of course, belief in Our Lady's Assumption into Heaven was nothing new, as testified by the 5th Glorious Mystery of the Rosary and a Mass in honor of her Assumption, titled Gaudeamus omnes. To honor the declaration of the dogma, Pius XII commissioned a revised set of Mass propers for the feast (similarly as Pope Urban IV did for the Feast of Corpus Christi in 1264) which were introduced into the Missale Romanum in 1951. Chief amongst the revisions was the composition of a beautiful new Introit by a Benedictine monk of Solesmes, starting with the words Signum magnum. ---- This chant was performed by Chor der Benediktinerinnen #Benediktinerinnen (C) Archiv Produktion under licence to Universal Music Group