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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

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.

Jeff Ostrowski · July 1, 2025

Bugnini’s Statement (6 November 1966)

More is revealed each day.

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Corpus Christi Watershed

President’s Corner

    “Reminder” — Month of April (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
    Simplified Accompaniment (Easter Hymn)
    Number 36 in the Brébeuf Hymnal is “At the Lamb’s high feast we sing,” an English translation for Ad Cenam Agni Próvidi (which was called “Ad Régias Agni Dapes” starting 1631). As of this morning, you can download a simplified keyboard accompaniment for it. Simply click here and scroll to the bottom. Many organists are forced to serve simultaneously as both CANTOR and ACCOMPANIST. In spite of what some claim, this can be difficult—which explains why choirmasters appreciate these simplified keyboard accompaniments. Sadly, many readers will click that link but forget to scroll to the bottom where the simplified PDF file is located.
    —Jeff Ostrowski
    PDF Download • “Quasi Modo Sunday”
    The Introit for “Quasi Modo Sunday” (12 April 2026) is particularly beautiful. The musical score can be downloaded as a PDF file, and so can the organ accompaniment. The official language of the Catholic Church is Latin (whereas Greek is our mother tongue). Vatican II said Gregorian Chant must be given “first place” under normal circumstances. As a result, some parishes will rightly sing the authentic version. On the other hand, because so many USA dioceses disobey the mandate of Vatican II, some musicians sing plainsong in the vernacular. I have attempted to simultaneously accompany myself on the pipe organ while singing the English version. Although very few take advantage of it, the complete Proprium Missae is posted at the flourishing feasts website.
    —Jeff Ostrowski

Quick Thoughts

    PDF Download • “Anima Christi”
    I received a request for an organ accompaniment I created way back in 2007 for the “Anima Christi” Gregorian Chant. You can download this PDF file which has the score in plainsong followed by a keyboard accompaniment. Many melodies have been paired with “Anima Christi” over the centuries, but this is—perhaps—the most common one.
    —Jeff Ostrowski
    PDF • “Liturgical Law” (467 Pages)
    On Good Friday during the middle ages, the pope privately recited THE ENTIRE PSALTER. If you don’t believe me, see for yourself by reading this passage by Dom Charles Augustine Bachofen (d. 1943). His famous book—called “Liturgical Law: A Handbook Of The Roman Liturgy”—was published by the Benjamin Herder Book Company, which was the American arm (operating out of St. Louis, Missouri) of one of the world’s most significant Catholic publishers. Dom Charles Augustine Bachofen was born in Switzerland but spent his career between the Benedictine monasteries at Conception (Missouri) and Mount Angel (Oregon). His 1931 masterpiece, Liturgical Law can be downloaded as a PDF file … 467 pages!
    —Jeff Ostrowski
    “Gregorian Chant Quiz” • 24 March 2026
    How well do you know your Gregorian hymns? Do you recognize the tune inserted into the bass line on this score? For many years, we sang the entire Mass in Gregorian chant—and I mean everything. As a result, it would be difficult to find a Gregorian hymn I don’t recognize instantly. Only decades later did I realize (with sadness) that this skill cannot be ‘monetized’… This particular melody is used for a very famous Gregorian hymn, printed in the LIBER USUALIS. Do you recognize it? Send me an email with the correct words, and I promise to tell everybody I meet about your prowess!
    —Jeff Ostrowski

Random Quote

“Who dreamed on that day that within a few years, far less than a decade, the Latin past of the Church would be all but expunged, that it would be reduced to a memory fading into the middle distance? The thought of it would have horrified us, but it seemed so far beyond the realm of the possible as to be ridiculous. So we laughed it off.”

— Archbishop Dwyer of Portland (26-Oct-1973)

Recent Posts

  • 2026 Sacred Music Pilgrimage (Washington DC) • With Richard J. Clark
  • “Reminder” — Month of April (2026)
  • “Gregorian Chant Isn’t a Platform for Your Personal Theories, Jeff” • (A Letter We Received)
  • Request From Australia
  • PDF Download • “Anima Christi”

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