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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 · February 6, 2014

Poverty, Self-Denial, and Peace – Part II

How do we learn the art of self-denial? In small steps that prepare us for the ultimate step: surrendering our soul to the Lord at death.

Dr. Peter Kwasniewski · January 30, 2014

Poverty, Self-Denial, and Peace – Part I

The remedy for disordered desire is mortification and the longing for God, the living God, who calls us to intimate union. How different is Christian redemption from a Buddhist annihilation of self!

Dr. Peter Kwasniewski · January 23, 2014

Lord, Deliver Me From My Persecutors

It is only a matter of time before being a Catholic at all will involve renouncing much that the world considers important and necessary. And soon there will be open persecution. Are we ready?

Dr. Peter Kwasniewski · January 16, 2014

Liturgical Abuse and Abuse of Minors

The decades-long abuse of the sacred liturgy—and therefore, of faithful Catholics who have a right to the sacred liturgy in its fullness—constitutes the first and fundamental form of clerical abuse of the laity, of which sexual abuse is a particular and more demented moral variety.

Dr. Peter Kwasniewski · January 9, 2014

Byzantine Splendor and Roman Sobriety

The traditional Western Mass is intent on reminding the worshiper of the death of Christ and the believer’s own sinfulness and unworthiness, while the Eastern Divine Liturgy accents the victory of Christ and the Christian’s triumph with Him in glory.

Dr. Peter Kwasniewski · January 2, 2014

‘Medieval’ Liturgy and ‘Scholastic’ Theology

The prejudice against the ancient (or, in many respects, medieval) Roman Rite is quite similar to the long-fashionable prejudice against scholastic philosophy.

Dr. Peter Kwasniewski · December 19, 2013

Prayer and Action

If we want our apostolate or our daily round of duties to be fruitful, we need to begin and end with the continually burning fire of adoring union with God.

Dr. Peter Kwasniewski · December 12, 2013

General and Particular Examen

Many saintly authors recommend a “particular and general examination of conscience,” but seldom explain what is meant by this, apparently because it used to be extremely well known.

Dr. Peter Kwasniewski · December 5, 2013

Recovering the Greatness of the Roman Rite

Why did we suppress the most precious, most beautiful gift the Lord had given to us? What were we thinking? A child’s perspective brings out the importance of the solemn sung liturgy.

Dr. Peter Kwasniewski · November 28, 2013

Spiritual Reading

Do you have a plan about which spiritual book you will be reading this Advent?

Dr. Peter Kwasniewski · November 21, 2013

Is the Mass “Just” the Mass?

It is too easy to fall into the trap of thinking that nothing else matters in the liturgy besides “Jesus is present.” This is a superficial and relativistic way of thinking that has to be challenged and corrected, if the Real Presence is to be of any benefit to us—indeed, if our faith in the Real Presence is even going to survive.

Dr. Peter Kwasniewski · November 14, 2013

A Sober Assessment of Liturgical Reform

The official statements always sing the praises of reform, but the people in the pews know better. They are the ones who have suffered the most.

Dr. Peter Kwasniewski · November 7, 2013

The Fear of the Lord

Do we rightly fear the Lord?

Dr. Peter Kwasniewski · October 31, 2013

Incarnation and Divinization

Why did the Son of God become man? “God became man, that men might become gods” (St. Athanasius).

Dr. Peter Kwasniewski · October 24, 2013

On Aweful Ambos and Lilliputian Lecterns

Why can’t churches have grand furnishings and fixtures—like the lofty pulpits you see in older churches? And why aren’t those pulpits, where they exist, still being used today?

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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

What earlier generations held as sacred, remains sacred and great for us too, and it cannot be all of a sudden entirely forbidden or even considered harmful.

— Pope Benedict XVI, Letter accompanying “Summorum Pontificum” (7/7/07)

Recent Posts

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  • PDF Download • “Funerals in the Ordinary Form”
  • Extreme Unction

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