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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

Jeff Ostrowski • Article Archive

A theorist, organist, and conductor, Jeff Ostrowski holds his B.M. in Music Theory from the University of Kansas (2004). He completed studies in Education and Musicology at the graduate level. Having worked as a church musician in Los Angeles for ten years, in 2024 he accepted a position as choirmaster for Saint Mary of the Immaculate Conception in Michigan, where he resides with his wife and children. —Read full biography (with photographs).

Jeff Ostrowski · May 22, 2020

From a Catholic priest…

Regarding the CCW mailing list, a priest (Father E. J.) wrote to us yesterday: “Sometime ago, you wrote something along the lines that none of your emails are copies or merely pitches; each one is individual. I respect you so much for that. I don’t always get to read through them, but they remain in […]

Jeff Ostrowski · May 21, 2020

“Jesu Nostra Redemptio” • Ancient Hymn for the Ascension translated into English!

Did you know every Mass is a celebration of our Lord’s Ascension? — Here’s proof.

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Jeff Ostrowski · May 19, 2020

New Harmonies! • “To Jesus Christ, Our Sovereign King”

It’s hard to believe, but Father Knauff’s “Christ the King Hymnal for Congregational Singing” (1954) omitted this hymn!

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Jeff Ostrowski · May 16, 2020

PDF Download • Organ Accompaniments (Benediction of the Blessed Sacrament)

Including O SALUTARIS (“O Saving Victim Opening Wide”) and TANTUM ERGO (“Down in Adoration Falling”) in Latin and English.

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Jeff Ostrowski · May 14, 2020

Can’t Decide Which Hymn Tune To Use?

My brain can’t accept the approach chosen by this “Graduale”…

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Jeff Ostrowski · May 12, 2020

What Did Palestrina Look Like?

Father Lawrence Lew, OP, is perhaps the world’s greatest photographer.

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Jeff Ostrowski · May 12, 2020

Does Gregorian Chant ever skip a 7th?

I’ve really been enjoying singing from the Père Daniel Kyriale (126 pages), which is a fabulous little book. I had no idea it would turn out so nicely—incredibly useful, and the printing is super crisp. I noticed something quite strange the other day: Kyrie X (an extremely ancient chant) contains a skip of a seventh. […]

Jeff Ostrowski · May 12, 2020

We love getting messages like this one…

“I am a 25-year-old organist and cantor from the mountains of Northern Colorado. I wanted to take this opportunity to thank you and your friends for working hard to bring excellent content to your website and my inbox. I have found many, many awesome resources to help me stay faithful to the Church’s stance and […]

Jeff Ostrowski · May 11, 2020

How to properly sing “Alleluia” in Eastertide (1962 Missal)

The way to “repeat” Alleluia during Eastertide confuses many people.

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Jeff Ostrowski · May 11, 2020

A B C D F etc. — An Ancient “Alphabetical” Hymn

This hymn by Caelius Sedulius (Christian Poet from the 5th century) has been translated into English by a Catholic priest.

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Jeff Ostrowski · May 9, 2020

Wedding Homily (7 min) by Fr. Valentine Young

“The late Archbishop Sheen once pointed out how the Greeks in their language had three different words for love…”

Jeff Ostrowski · May 7, 2020

Stunning Harmonies! • “Hail, Holy Queen Enthroned Above” (Hymn #783)

This has been called the “incomparable and indispensable” hymnal for Catholics.

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Jeff Ostrowski · May 6, 2020

What is the “Ordinary” of the Mass?

A few years ago—during the Sacred Music Symposium—I suggested to the audience that the “Our Father” and the “Alleluia” should be considered part of the Ordinary of the Mass (for the Ordinary Form). In my own settings, such as Mass of the English Martyrs, I treated the “Our Father” accordingly—and here in Los Angeles, we […]

Jeff Ostrowski · May 6, 2020

Blog Contributors Speak About A “Favorite” Piece

This is a good way to get to know several contributors a little better!

Jeff Ostrowski · May 5, 2020

“Pange Lingua” translated into English • Hymn by Saint Thomas Aquinas

I predict this smooth harmonization will go down in history—it fits the voice perfectly.

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Corpus Christi Watershed

President’s Corner

    💲 5.00 💵
    Our tiny 501(c)3 nonprofit organization exists solely by generous readers who donate $5.00 per month. We have no endowment; we have no major donors; we run no advertisements; we have no savings. A donor wrote to us: “I so appreciate all you do and have done, and your generosity is unprecedented. I am honored to be able to make a monthly contribution.” Another monthly donor says: “Thank you for everything CC Watershed does. We are able to add so much solemnity to Holy Mass due to the resources made available here.” Can you spare a few dollars each month to help us survive?
    —Corpus Christi Watershed
    Dom Pothier • Photo from 1904
    Dom Paul Cagin, in a 1904 publication (L’oeuvre de Solesmes dans la restauration du chant grégorien) made sure to include a beautiful image of Dom Pothier, the legendary abbot of St-Wandrille. Also shown is a very young Dom André Mocquereau. Auguste Pécoul—considered the spiritual “son” of Abbat Prosper Guéranger of Solesmes—wrote as follows on 24 June 1901: “To forestall any confusion, let us remember that there is just one Gregorian notation—that restored, according to the ancient manuscripts, by the eminent Abbot of Saint-Wandrille, Dom Pothier.” ✠
    —Jeff Ostrowski
    PDF • “3-Voice Motet” (Father De Laet)
    I believe 99% of our readers will recognize this hymn tune. Perhaps Father Edgard De Laet should have called it a ‘hymn’ instead of a ‘motet for three voices’—but he’s technically correct, since MOTET is defined as: “a short piece of sacred choral music, typically polyphonic and unaccompanied.” The even verses are for three voices, as you will see if you download the PDF score at #20245. The odd verses may be song a cappella SATB or unison with organ.
    —Jeff Ostrowski

Quick Thoughts

    “Reminder” — Month of Febr. (2026)
    On a daily basis, I speak to people who don’t realize we publish a free newsletter (although they’ve followed our blog for years). We have no endowment, no major donors, no savings, and refuse to run annoying ads. As a result, our mailing list is crucial to our survival. It couldn’t be easier to subscribe! Just scroll to the bottom of any blog article and enter your email address.
    —Jeff Ostrowski
    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

This was first breach in the walls of a fortress, centuries old, stoutly built, strong and robust, but no longer capable of responding to the spiritual needs of the age. [N.B. the “fortress” is a liturgy which nourished countless great saints.]

— Annibale Bugnini (19 March 1966)

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  • Dom Pothier • Photo from 1904

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