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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 · July 20, 2025

Communion • “Ask & You Shall Receive”

The Communion chant is exceedingly ancient.

Jeff Ostrowski · July 20, 2025

Jeff’s Mother Joins Our Fundraiser

If you have a moment…

Jeff Ostrowski · July 19, 2025

Errors in Latin: “17th Sund. Ordinary”

Even books by Fortescue and Knox have errors.

Jeff Ostrowski · July 18, 2025

“Tell Me Lies; Tell Me Sweet Little Lies.” • Re: Post-Conciliar Lectionary Problems

Do you see how they shamelessly modified the original?

Jeff Ostrowski · July 15, 2025

PDF Download • “Jeff’s Mom Joins Our Fundraiser”

Earlier this year, my mother found out we desperately needed funds and were planning to run a fundraiser…

Jeff Ostrowski · July 14, 2025

“Musicam Sacram” (5 March 1967) • Does It Apply?

During a 2012 job interview with a priest, I was asked…

Jeff Ostrowski · July 14, 2025

“What Martin Luther Said…”

Martin Luther’s hatred for the True Faith was only exceeded by his filthy and disgusting vulgarity.

Jeff Ostrowski · July 12, 2025

“Music List” • 15th in Ordinary Time (Year C)

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

Jeff Ostrowski · July 10, 2025

15th Sunday in Ordinary Time (Year C)

The Offertory this coming Sunday is particularly beautiful.

Jeff Ostrowski · July 9, 2025

Music Director Job • $80,000 per year

My pastor was elevated to this basilica two weeks ago.

Jeff Ostrowski · July 7, 2025

New “Latin/English Missal” for the Novus Ordo

This English/Latin missal is being created by several priests and seminarians.

Jeff Ostrowski · July 6, 2025

Simplest “Agnus Dei” Ever Published

For organ and voice, some have called this “the simplest setting ever composed.”

Jeff Ostrowski · July 5, 2025

Bishop François Charrière Vs. Hannibal Bugnini

Bugnini felt his modifications were “desired by all.”

Jeff Ostrowski · July 5, 2025

14th Sunday in Ordinary Time (Year C)

The chants have been posted!

Jeff Ostrowski · July 2, 2025

Now Available! • “Hymns of Cardinal Newman: Kevin Allen’s Legendary Choral Settings”

Including a group photograph of Sacred Music Symposium 2025.

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Corpus Christi Watershed

President’s Corner

    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
    PDF Download • “Hymn for 2 Voices”
    Readers who click on this video will see that it starts with verses of the “Pange Lingua” hymn by Saint Thomas Aquinas (d. 1274) arranged for two voices. However, there’s a polyphonic refrain (“Tantum Ergo”) for three voices, taken from Kevin Allen’s Motecta Trium Vocum. If your choir is very small, this piece is for you! You can download the PDF score free of charge—and you can also utilize the rehearsal videos for each individual voice—by navigating yourself to #20323.
    —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

“What really matters in life is that we are loved by Christ and that we love Him in return. In comparison to the love of Jesus, everything else is secondary. And, without the love of Jesus, everything is useless.”

— Pope John Paul II (1979)

Recent Posts

  • Dom Pothier • Photo from 1904
  • PDF Chart • “Plainsong Rhythm”
  • PDF • “3-Voice Motet” (Father De Laet)
  • PDF Download • “Hymn for 2 Voices”
  • (January 2026) • “Children Singing Plainsong”

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