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Corpus Christi Watershed

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

Richard J. Clark • Article Archive

Richard J. Clark is the Director of Music of the Archdiocese of Boston and the Cathedral of the Holy Cross. He is also Chapel Organist (Saint Mary’s Chapel) at Boston College. His compositions have been performed worldwide.—Read full biography (with photographs).

Richard J. Clark · June 19, 2015

Bigger Fish to Fry

Weddings, with all of their challenges offer an important chance to evangelize. God calls us to be fishers of women and men. That’s the most important catch of all.

Richard J. Clark · June 12, 2015

BENEDICTA: Marian Chant from Norcia ~ Number 1 on the Billboard Charts

Perhaps the recent commercial success of sacred music is indicative of humanity’s natural hunger for transcendent union with the Divine.

Richard J. Clark · June 5, 2015

Saint Cecilia and an Angel Orazio Gentileschi and Giovanni Lanfranco

Dancing on the Edge with Truth and Beauty

“I encourage you to make music at the highest levels possible in your parishes. Our people deserve it and our God is worthy of the highest forms of praise.” — John Romeri

Richard J. Clark · May 29, 2015

Are We Humble Enough To Open The Door And Walk In?

Anyone who knew him expected no less. But it was extraordinary to witness.

Richard J. Clark · May 22, 2015

Veni Sancte Spiritus | Two Free Resources

Two free resources for the Pentecost Sequence, “Veni Sancte Spiritus”

Richard J. Clark · May 15, 2015

Do not mistake competence for conservatism.

The more knowledgeable a musician is about the Roman Rite, the Vatican II documents, and the GIRM, the more likely that musician is to be labeled “conservative” in their views. This is nonsense.

Richard J. Clark · May 8, 2015

Why Should We Sing the Psalms at Mass?

if we do not sing the antiphons proper to the day—and the corresponding Psalm verses—we risk having a narrow view of the Psalms.

Richard J. Clark · May 1, 2015

Bill Belichick and the Liturgy

Bill Belichick, Gisele, Darelle Revis, and the Roman Rite.

Richard J. Clark · April 24, 2015

“Choral music is not one of life’s frills.”

Would that our church and school budgets reflect this profound importance, our praise of God would be greater, our churches fuller, and our relationship with the Lord and each other deeper.

Richard J. Clark · April 17, 2015

“Proper Of The Mass” (Ignatius Press) • Part 2 of 7

That this resource—and a flood of new ones—are becoming available, points to a new awakening in the Church.

Richard J. Clark · April 10, 2015

Let This Holy Building Shake with Joy!

Sometimes everything comes together. How is this achieved? Here are a few ways.

Richard J. Clark · April 3, 2015

“O Sacred Head Surrounded” | Buxtehude

Dieterich Buxtehude was a direct influence on Johann Sebastian Bach—and for good reason.

Richard J. Clark · March 27, 2015

Five Things Directors and Choirs Must Remember This Week

You may forever change the lives of someone you do not know in ways you will never know.

Richard J. Clark · March 20, 2015

St. Joseph, Fatherhood, and Inclusive Language

This is a hot-button topic I should not touch with a 100-foot pole. But what is not at debate is the inclusive nature of the message of the Gospel.

Richard J. Clark · March 13, 2015

Simply Stunning | Sacred Music of Paul Jernberg

A simply stunning “Salve Regina” and the “Mass of Saint Philip Neri”

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Corpus Christi Watershed

President’s Corner

    Which Mass?
    In 1905, when the Vatican Commission on Gregorian Chant began publishing the EDITIO VATICANA—still the Church’s official edition— they assigned different Masses to different types of feasts. However, they were careful to add a note (which began with the words “Qualislibet cantus hujus Ordinarii…”) making clear “chants from one Mass may be used together with those from others.” Sadly, I sometimes worked for TLM priests who weren’t fluent in Latin. As a result, they stubbornly insisted Mass settings were ‘assigned’ to different feasts and seasons (which is false). To understand the great variety, one should examine the 1904 KYRIALE of Dr. Peter Wagner. One should also look through Dom Mocquereau’s Liber Usualis (1904), in which the Masses are all mixed up. For instance, Gloria II in his book ended up being moved to the ‘ad libitum’ appendix in the EDITIO VATICANA.
    —Jeff Ostrowski
    Like! Like! Like!
    You won’t believe who recently gave us a “like” on the Corpus Christi Watershed FACEBOOK PAGE. Click here (PDF) to see who it was. We were not only sincerely honored, we were utterly flabbergasted. This was truly a resounding endorsement and unmistakable stamp of approval.
    —Jeff Ostrowski
    PDF Download • “Atténde Dómine”
    Although it isn’t nearly as ancient as other hymns in the plainsong repertoire, Atténde Dómine, et miserére, quía peccávimus tíbi (“Look down, O Lord, and have mercy, for we have sinned against Thee”) has become one of the most popular hymns for LENT—perhaps because it was included in the famous Liber Usualis of Solesmes. This musical score (PDF file) has an incredibly accurate version in English, as well as a nice version in Spanish, and also the original Latin. Although I don’t claim to have a great singing voice, this morning I recorded this rehearsal video.
    —Jeff Ostrowski

Quick Thoughts

    Extreme Unction
    Those who search Google for “CCCC MS 079” will discover high resolution images of a medieval Pontificale (“Cambridge, Corpus Christi College, MS 079”). One of the pages contains this absolutely gorgeous depiction of the Sacrament of Extreme Unction.
    —Corpus Christi Watershed
    PDF Chart • “Plainsong Rhythm”
    I will go to my grave without understanding the lack of curiosity so many people have about the rhythmic modifications made by Dom André Mocquereau. For example, how can someone examine this single sheet comparison chart and at a minimum not be curious about the differences? Dom Mocquereau basically creates a LONG-SHORT LONG-SHORT rhythmic pattern—in spite of enormous and overwhelming manuscript evidence to the contrary. That’s why some scholars referred to his method as “Neo-Mensuralist” or “Neo-Mensuralism.”
    —Jeff Ostrowski
    PDF • “O Come All Ye Faithful” (Simplified)
    I admire the harmonization of “Adeste Fideles” by David Willcocks (d. 2015), who served as director of the Royal College of Music (London, England). In 2025, I was challenged to create a simplified arrangement for organists incapable of playing the authentic version at tempo. The result was this simplified keyboard arrangement (PDF download) based on the David Willcocks version of “O Come All Ye Faithful.” Feel free to play through it and let me know what you think.
    —Jeff Ostrowski

Random Quote

“The Jesuits have spoiled the work of Christian antiquity, under pretext of restoring the hymns in accordance with the laws of metre and elegant language.”

— M. Ulysse Chevalier (1891)

Recent Posts

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  • Extreme Unction
  • Which Mass?
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  • PDF Download • “Pange Lingua” in Simple (Contemporary) Polyphony for Three Voices

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