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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 · November 17, 2025

“Music List” • Christ the King Sunday

Readers have expressed interest in examining the “music list” I prepared for this coming Sunday.

Jeff Ostrowski · November 16, 2025

PDF Download • “Pope Pius XII Psalter” — English, Latin, and Commentary (532 pages)

I know of no greater commentary on the psalms. Its author—an erudite Dominican priest—founded the famous “Homiletic and Pastoral Review.”

Jeff Ostrowski · November 15, 2025

“Simplified” Keyboard Accompaniment (PDF)

A simplified keyboard accompaniment for the “O Jesus Christ, Remember” hymn.

Jeff Ostrowski · November 11, 2025

‘Bogey’ of the Half-Educated: Paraphrase

This is something Monsignor Ronald Knox had to explain time and again…

Jeff Ostrowski · November 11, 2025

Father Cuthbert Lattey • “The Hebrew MSS”

“the ancient Christian versions (and some other ancient sources) seem to have been based upon a better Hebrew text…”

Jeff Ostrowski · November 10, 2025

Re: The People’s Mass Book (1974)

“A Man Can Kill With a Gun, a Bomb, or a Lance…”

Jeff Ostrowski · November 8, 2025

PDF Download • “Music List” for 9 November

Readers have expressed interest in examining the “music list” I prepared for this coming Sunday.

Jeff Ostrowski · November 8, 2025

“Music List” • 9 Nov. (Dedic. Lateran)

Readers have expressed interest in examining the “music list” I prepared for this coming Sunday.

Jeff Ostrowski · November 8, 2025

PDF Download • Offertory (9 Nov.)

“Mother and Head of all churches of the City and of the World” says the inscription over the entrance.

Jeff Ostrowski · November 7, 2025

Job Opening • $65,000 per year +

Exciting job opening in Michigan for a Roman Catholic choir director!

Jeff Ostrowski · November 6, 2025

“Reminder” — Month of November (2025)

Since a new month has arrived, it’s my pleasure to remind you that…

Jeff Ostrowski · November 4, 2025

Never Work For A Priest Or Bishop Who Believes Sacred Music Should Be “Entertainment”

Unsolicited advice for prospective choir directors.

Jeff Ostrowski · November 3, 2025

“Offertory” at Catholic Funerals

This setting cleverly inserts themes from the absolution of the body.

Jeff Ostrowski · November 1, 2025

“In Paradisum” • Gregorian Chant

While the coffin is being carried to the grave, the following anthem is sung.

Jeff Ostrowski · October 31, 2025

“Music List” • All Souls (2 November)

Readers have expressed interest in examining the “music list” I prepared for this coming Sunday.

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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

“The training in singing, to sing in a chorus, is not only an exercise of external listening and of the voice; it is also training for interior listening, listening with the heart, an exercise in training for life and for peace.”

— Pope Benedict XVI

Recent Posts

  • “Reminder” — Month of Febr. (2026)
  • Seminary Music Directors Gather in Houston
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  • Dom Pothier • Photo from 1904
  • PDF Chart • “Plainsong Rhythm”

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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.