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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 24, 2021

24 May 2021 • FEEDBACK

M.B. wrote to us: “Dear Corpus Christi Watershed: please keep posting beautiful hymns! You have no idea just how helpful it is to me! God bless the work and efforts that you pour into making the liturgy more beautiful for God’s glory!”

Jeff Ostrowski · May 23, 2021

“Part 1 of 3” • Guerrero Kyrie for Our Lady

Now that choirs are beginning to come back…

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Jeff Ostrowski · May 21, 2021

“Veni Sancte Spiritus” (Sequence) • 18 Accompaniments

The Pentecost Sequence harmonized by Father Green, Father Jones, Dom Gregory Murray, Max Springer, Achille P. Bragers, and more!

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Jeff Ostrowski · May 21, 2021

21 May 2021 • “Cheating?”

If you look in the 1952 Australian Hymnal by Father Percy Jones called The Saint Pius X Hymnal, you will see that they substitute “Confirma Hoc” from Confirmation with the Offertory antiphon on Pentecost Sunday. Thoughts? Was that cheating?

Jeff Ostrowski · May 18, 2021

18 May 2021 • A bad translation?

My friend L.F. has informed me that the editors of the 1965 Missale Romanum seem to have deliberately deleted the part about “raising the children in the Catholic Faith.” Do you agree? See for yourself. How would you translate that passage into English? Please email me at: jeff@ccwatershed.org

Jeff Ostrowski · May 17, 2021

“Slanty Wampus” Doesn’t Count

From one of my composition teachers…

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Jeff Ostrowski · May 15, 2021

“Homily: Sunday after the Ascension” (EF) • Father Valentine Young, OFM

I wanted to become a Franciscan priest, and became one. But I certainly landed in places and assignments I never dreamed of being in.

Jeff Ostrowski · May 14, 2021

“Easy Polyphonic Agnus Dei” • Part 2 of 3

What is the best way to get your choir singing when they first return? Here are some tips…

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Jeff Ostrowski · May 12, 2021

Being Too Hard On Priests?

…including a fancy capital “A” from a medieval manuscript.

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Jeff Ostrowski · May 11, 2021

Did Bishop Sheen Favor A Particular Hymnal?

Including a wonderful hymn for the Ascension.

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Jeff Ostrowski · May 10, 2021

Re: “Christ the King Hymnal” (Imprimatur, 1954)

Venerable Pope Pius XII explicitly allowed vernacular hymns during High Mass in 1958.

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Jeff Ostrowski · May 6, 2021

6 May 2021 • FEEDBACK

A reader from St. Louis, Missouri, wrote to us: “The work you and your team do is quite possibly the most valuable resource I have come across as a younger Sacred music director and organist. The Brébeuf Hymnal is my most used and referenced resource. Although my church has not adopted it yet (I will […]

Jeff Ostrowski · May 6, 2021

Question & Answer Box • “Which Tune Is This?”

Including a live recording of a hymn about a donkey. (Not kidding!)

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Jeff Ostrowski · May 4, 2021

(Live Recording) • “Jesus My Lord, My God, My All”

There is a “hidden rule” about Roman Catholic Hymnals.

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Jeff Ostrowski · May 3, 2021

“No hymn deserves more to be reintroduced in our catholic tradition.” —Dom Ermin Vitry

A live recording of the Church’s oldest Latin Eucharistic hymn.

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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

    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
    “Reminder” — Month of January (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. Signing up couldn’t be easier: simply scroll to the bottom of any blog article and enter your email address.
    —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

[on Latin] “No change in Mass: people have missals and can read. More vernacular can be useful in the Sacraments: Baptism, Confirmation, Extreme Unction, Matrimony.”

— Cardinal Spellman (one of the Vatican II fathers)

Recent Posts

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  • Dom Pothier • Photo from 1904
  • PDF Chart • “Plainsong Rhythm”
  • PDF • “3-Voice Motet” (Father De Laet)
  • PDF Download • “Hymn for 2 Voices”

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Corpus Christi Watershed is a 501(c)3 public charity dedicated to exploring and embodying as our calling the relationship of religion, culture, and the arts. This non-profit organization employs the creative media in service of theology, the Church, and Christian culture for the enrichment and enjoyment of the public.