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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

Dr. Peter Kwasniewski

A graduate of Thomas Aquinas College (B.A. in Liberal Arts) and The Catholic University of America (M.A. and Ph.D. in Philosophy), Dr. Peter Kwasniewski is currently Professor at Wyoming Catholic College. He is also a published and performed composer, especially of sacred music. Read more.

Dr. Peter Kwasniewski · October 17, 2013

The Two Churches: Which One Do You Belong To?

There really are two churches: one is the true Church, the other is an anti-Church that represents and does the spadework for the anti-Christ, the anti-Word. It is spiritually beneficial to consider a portrait of each.

Dr. Peter Kwasniewski · October 10, 2013

“Let My Prayer Rise Like Incense”

It is often said that the earthly liturgy is a participation in the heavenly liturgy. Alas, in many cases this doesn’t fit in with our actual experiences, but there are exceptions. This past summer, heaven visited me in that way.

Dr. Peter Kwasniewski · October 3, 2013

Catholicism, the Persecuted Religion

Modern people can tolerate almost anything except a person’s being, or becoming, a Catholic.

Dr. Peter Kwasniewski · September 26, 2013

The Grand Debate Over Music and Morals

The controversy caused by my posts on rock music have prompted me to look back over the past four posts and try to see the thread that runs through all of them. It is the truth that Christians are called to pursue excellence in every way—that includes music.

Dr. Peter Kwasniewski · September 19, 2013

The Sexual Rhythm of Rock Music (2 of 2)

After causing general apoplexy with last week’s post, I will endeavor today to add some nuances and respond to objections.

Dr. Peter Kwasniewski · September 12, 2013

The Sexual Rhythm of Rock Music (1 of 2)

The fundamental problem with rock music can be summed up quite simply: its rhythm is unnatural and morally tainted, and its inventors wanted it that way. We would do well to stay far from it.

Dr. Peter Kwasniewski · September 5, 2013

Nourishing Our Souls on Beautiful Music: A Moral Imperative

Since we must strive to flee even venial sins, it is always better to assume that today’s popular music, produced mostly by hedonists who are generally singing about sins, is a slippery slope leading to some kind of intellectual pollution and consent.

Dr. Peter Kwasniewski · August 29, 2013

On the Connection Between Good Art and Good Morals

Is there an intrinsic or necessary connection between being a good artist and being a good man? As with most of the great questions, the answer is no—and yes.

Dr. Peter Kwasniewski · August 22, 2013

Musings of an Aristotelian Catholic

In the mystery of the Incarnation, God takes delight in responding to man’s sensible, bodily nature, and the resulting need for tasting and touching our God.

Dr. Peter Kwasniewski · August 15, 2013

In This Little House of God

We must do all that we can do for the Lord, since our greatest is the least that is worthy of him. And when we do all the “little things” with love, we give Him great glory.

Dr. Peter Kwasniewski · August 8, 2013

Pope Francis’s Counsel: Do Not Waste What God Has Given Us

Pope Francis, no less than Pope Benedict, has a way of formulating universal principles of thought and action that apply to any number of related topics, including the sacred liturgy.

Dr. Peter Kwasniewski · August 1, 2013

Rediscovering Sacred Music with the Youth of Today

The true youth revolution in the Church will come by way of the mysticism of chant and the power of polyphony, not by way of second-rate imitations of secular music. To pull it off, however, requires real musical knowledge, talent, and a commitment to education.

Dr. Peter Kwasniewski · July 25, 2013

Silence (Part 3 of 3)

The fundamental precondition for active participation is interior silence. Praying in silence is a particularly noble form of human activity—more active than merely speaking or singing.

Dr. Peter Kwasniewski · July 18, 2013

Silence (Part 2 of 3)

If the conditions for recollection are never present in our lives, if we do not fight to create and guard such conditions, we will lose our awareness of divine mystery, as refreshing as springtime rains, and wander in a desert of superficiality.

Dr. Peter Kwasniewski · July 11, 2013

Silence (Part 1 of 3)

The New Evangelization is a bold project, but it will not succeed unless we can recover a strong sense of the sacred, which the gift of silence in church will help us achieve.

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Corpus Christi Watershed

President’s Corner

    Music List • (2nd Sunday of Lent)
    Readers have expressed interest in seeing the ORDER OF MUSIC I created for this coming Sunday, which is the 2nd Sunday of Lent (1 March 2026). If such a thing interests you, feel free to download it as a PDF file. This feast has magnificent propers. Its somber INTROIT is particularly striking—using a haunting tonality—but the COMMUNION with its fauxbourdon verses is also quite remarkable. I encourage all the readers to visit the feasts website, where the Propria Missae may be downloaded completely free of charge.
    —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
    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

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

“Whether celebrated with priest and people facing each other or with priest and people together facing the same direction, every Eucharist is Christ coming to meet us, gracing us with a share in his own divine life.”

— Most Rev’d Arthur J. Serratelli (1 December 2016)

Recent Posts

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  • Extreme Unction
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