The Dormition [/Assumption]: Missa “Gaudeámus omnes“ INTROIT Psalm 44: 13, 15-16 Let all rejoice in the Lord, celebrating a festival day in honor of the Blessed Virgin Mary, for whose Assumption the Angels rejoice and give praise to the Son of God (Ps. 44: 2) My heart hath uttered a good word: I speak my works to…