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Pope Saint Paul VI (3 April 1969): “Although the text of the Roman Gradual—at least that which concerns the singing—has not been changed, the Entrance antiphons and Communions antiphons have been revised for Masses without singing.”

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Views from the Choir Loft

Theodore Marier Is the Most Important Liturgical Musician—Even Today.

Richard J. Clark · July 26, 2023

BELIEVE that Dr. Theodore Marier is even today the most important liturgical musician in the English Speaking world, despite a life in relative obscurity and service. Few know his name. Yet, his influence and importance certainly surpass postconciliar giants like Richard Proulx and Alexander Peloquin, whose work live on today. And his liturgical works are in greater demand today than when they were composed. My assertion specifies the parameter “most important liturgical musician”—one who worked in a parish with parish choirs in addition to being a composer, scholar, and editor of hymnals. Certainly, Pope Saint Pius X is the most important figure in liturgical music of the Twentieth and Twenty-first Centuries; he is referred to by name twice in SACROSANCTUM CONCILIUM for having “explained more precisely the ministerial function supplied by sacred music in the service of the Lord.” (S. C. §42). Pope Benedict XVI certainly looms as a most prominent figure in the Twenty-first Century. But a liturgical musician working in the trenches to implement Vatican II? Undoubtedly Theodore Marier.

My Presentation • The following presentation was given at the Sacred Music Symposium in California. It was the closing event of a glorious week of sacred music and prayer.

EW KNOW Marier’s work. He was not an international figure as a composer of concert works, although he traveled in circles that included Olivier Messiaen, Jean Langlais, Dom Joseph Gajard of the Solesmes Abbey, Seizi Ozawa, Kurt Masur, and others. His liturgical compositions, influence, and guidance throughout the Twentieth Century and the Conciliar changes are exceedingly important today in the Twenty-first Century especially in light of Pope Francis’ motu proprio, Traditionis custodes. Regardless, his influence stands on its own. Marier is best known as the founder of the Saint Paul’s Choir School (Archdiocesan Choir School) in Cambridge, Massachusetts and as the editor of the landmark hymnal, Hymns Psalms and Spiritual Canticles (1974, 1983) which modeled the sung Mass in the brand new Novus Ordo. His Psalter will be that hymnal’s most lasting contribution. (Listen here to the Boston Cathedral Choir sing Marier’s Psalm 128.) The founding of the school in 1963 (an extraordinary year in the Church!) was to him the natural conclusion of the liturgical documents put forth by Popes Pius X, Pius XI, and Pius XII, and ultimately Vatican II. He took these liturgical directives to heart and acted upon them. He demanded excellence not only from his students, but from the institution he founded.

Marier’s Qualities • His postconciliar liturgical compositions addressed the desperate need for sacred music in the vernacular that was required overnight. His compositions were deeply steeped in Gregorian Chant and demonstrate the continuity of the old rite and the new in a manner that was not only accessible, but beautiful, sacred, and universal. He was the model of a servant leader and servant composer. He spent his life building bridges. He began preparing those bridges in the 1940s with longtime Saint Paul’s pastor, Msgr. Augustine Hickey long before Vatican II. He built bridges during Vatican II (listen here to his Lux Aeterna in English recorded in 1965!) and in the years after Vatican II until his death in 2001. He always built a bridge out of love for God and the faithful. He was a man of deep faith, a loving husband, father, and family man. All of this made him a better liturgical musician.

Personal Takeaway:

I never met Theodore Marier. I did not grow up in New England. However, I have met countless souls whose lives have been changed forever by him. For someone I never met, he has had the most profound influence on my career. Whether one uses his compositions or not—they will have to stand on their own merits—I have one final personal conclusion: The more I learn about Marier, his life and career, the more I am inspired to be a better human being.

Acknowledgments:

This presentation is just a small offering, giving an overview which I hope others can build upon. I wish to extend profuse thanks to Dr. William H. Atwood, Diocesan Director of Music for the Diocese of Bridgeport Connecticut for his dissertation The Influence of Plainchant on the liturgical Music of Theodore Marier. I also wish to thank William Endicott, Class of 2008, for his thesis, Repleatur Os Meum Laude Tua, A History of the Music and Mission of the St. Paul’s Choir School and for supplying recordings and scores. I also wish to thank Br. Paul J. Murray, Class of 1996, for his tireless editorial work on Marier’s compositions. Finally, I wish to thank the late John Dunn (1943-2022), Headmaster & Director of Music Emeritus, Saint Paul’s Choir School for his painstaking editorial updates of Marier’s psalter—a true labor of love—and generous sharing of institutional knowledge.

Soli Deo gloria

Oremus pro invicem.
Let us pray for each other.

Opinions by blog authors do not necessarily represent the views of Corpus Christi Watershed.

Filed Under: Articles Tagged With: Dr Theodore Marier Last Updated: January 13, 2024

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About Richard J. Clark

Richard J. Clark is the Director of Music of the Archdiocese of Boston and the Cathedral of the Holy Cross.—(Read full biography).

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Corpus Christi Watershed

President’s Corner

    PDF Download • Communion for Sunday
    The COMMUNION ANTIPHON with fauxbourdon psalm verses for this coming Sunday (3 May 2026) is elegant and poignant. It’s such a shame it only comes every three years. This piece—along with all the musical scores for this coming Sunday, which is the 5th Sunday of Easter (Year A)—can be downloaded free of charge from the flourishing feasts website. By the way, how is it already 2026?
    —Jeff Ostrowski
    Season’s End Repertoire
    Looking at the REPERTOIRE SHEET until the end of the choral season, I see that I’ve fallen behind schedule. (The last three months have been extraordinarily busy.) As you know, I have been providing organ harmonies for all the ENTRANCE CHANTS—as well as rehearsal videos—and you can see I’m behind where I planned to be. Now I must make up lost ground. However, the choir picks up the ENTRANCE CHANT with ease, so I’m sure it will all work out. My ‘unofficial’ harmonizations are being posted each week at the flourishing feasts website.
    —Jeff Ostrowski
    PDF Download • “Funeral Procession”
    From a mediæval Book of Hours, I was sent this glorious depiction of a Roman Catholic funeral procession by Simon Bening (d. 1561). The image resolution is extremely high. I’m not sure I know of a more beautiful illustration of a mediæval church. And I love how the servers are wearing red and pink cassocks!
    —Jeff Ostrowski

Quick Thoughts

    PDF Download • “Anima Christi”
    I received a request for an organ accompaniment I created way back in 2007 for the “Anima Christi” Gregorian Chant. You can download this PDF file which has the score in plainsong followed by a keyboard accompaniment. Many melodies have been paired with “Anima Christi” over the centuries, but this is—perhaps—the most common one.
    —Jeff Ostrowski
    PDF • “Liturgical Law” (467 Pages)
    On Good Friday during the middle ages, the pope privately recited THE ENTIRE PSALTER. If you don’t believe me, see for yourself by reading this passage by Dom Charles Augustine Bachofen (d. 1943). His famous book—called “Liturgical Law: A Handbook Of The Roman Liturgy”—was published by the Benjamin Herder Book Company, which was the American arm (operating out of St. Louis, Missouri) of one of the world’s most significant Catholic publishers. Dom Charles Augustine Bachofen was born in Switzerland but spent his career between the Benedictine monasteries at Conception (Missouri) and Mount Angel (Oregon). His 1931 masterpiece, Liturgical Law can be downloaded as a PDF file … 467 pages!
    —Jeff Ostrowski
    “Gregorian Chant Quiz” • 24 March 2026
    How well do you know your Gregorian hymns? Do you recognize the tune inserted into the bass line on this score? For many years, we sang the entire Mass in Gregorian chant—and I mean everything. As a result, it would be difficult to find a Gregorian hymn I don’t recognize instantly. Only decades later did I realize (with sadness) that this skill cannot be ‘monetized’… This particular melody is used for a very famous Gregorian hymn, printed in the LIBER USUALIS. Do you recognize it? Send me an email with the correct words, and I promise to tell everybody I meet about your prowess!
    —Jeff Ostrowski

Random Quote

Jeffrey Tucker: “What are your thoughts on what passes for sacred music in most Catholic parishes today?” Richard Morris: “There’s nothing sacred about it. The tunes, rhythms, and messages are drawn mainly from secular culture. When it isn’t aesthetically repugnant and downright offensive to the Faith, it is utterly forgettable.”

— James Richard Morris (concert organist)

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  • PDF Download • “Funeral Procession”
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