This is a completely re-typeset version of Pope Paul VI's "Jubilate Deo". It is a collection of the simpler Gregorian chant melodies for the faithful to sing together. In this way Gregorian chant may again become a bond that forms the members of many nations into a single people, gathered together in Christ's name with one heart, one mind, and one voice. This living unity, symbolized by the union of voices that speak in different languages, accents,...