1. General Instruction on the Roman Missal (4th Edition, 1975); and the latest version including adaptations
for the United States of America (2003)

2. Guidelines on Sacred Music in the Liturgy issued by the Liturgical Music Committee (Singapore, 2005)

3. Instrumentum Laboris - Working Document for the Eleventh Ordinary General Assembly of the Synod of Bishops

4. Musicam Sacram - Instruction on Music in the Liturgy by the Sacred Congregation of Rites, approved by
His Holiness Pope Paul VI (March 5, 1967)

5. Sacramentum Caritatis - Post-Synodal Apostolic Exhortation of the Holy Father Benedict XVI to the bishops,
clergy, consecrated persons and lay faithful on the Eucharist as the source and summit of the Church's
life and mission (February 22, 2007)

6. Sacrosanctum Concilium - Constitution on the Sacred Liturgy promulgated by His Holiness Pope Paul VI
(December 4, 1963)

7. Summorum Pontificum - Apostolic Letter on the celebration of the Roman Rite according to the Missal of 1962, issued by the Holy Father Benedict XVI (July 7, 2007)
Download the document in Latin, or the unofficial Vatican translation in English

8. The Year of the Eucharist - Suggestions and Proposals by the Congregation for Divine Worship and the
Discipline of the Sacraments (October 15, 2004)

9. Voluntati Obsequens - better known as Jubilate Deo - a description of the minimum plainchant repertoire
by the Sacred Congregation for Divine Worship ( April 14, 1974)
Download the full music scores [pdf] in neumes or a limited version in modern notation

Adobe Reader is required to view the above documents - this can be downloaded here

10. Address of His Holiness Pope John Paul II to the International Congress on Sacred Music (January 27, 2001)

11. Adoremus - latest Papal, Holy See, and United States bishops' documents on liturgy and music

12. Adoremus - actions of the Holy See in liturgical and sacred music matters from 1903 to 1974

13. Liturgy Office of the Catholic Bishops' Conference of England and Wales - Documents

14. United States Conference of Catholic Bishops - Questions and Answers