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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 · September 27, 2025

“Music List” • 26th in Ordinary Time (Year C)

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

Jeff Ostrowski · September 27, 2025

“Reminder” — Month of September (2025)

It’s my pleasure to remind you that…

Jeff Ostrowski · September 26, 2025

PDF Download • Communion (26th Sn. Ord.)

This Communion antiphon sparkles with beauty.

Jeff Ostrowski · September 25, 2025

PDF Download • “Hymn by Father Thomas à Kempis” (arranged for 2 voices)

For the upcoming feast on 9 November (which replaces the Sunday Mass).

Jeff Ostrowski · September 24, 2025

“Canonic” • Ralph Vaughan Williams

This is quite a clever arrangement of “Come down, O love divine.”

Jeff Ostrowski · September 22, 2025

Did they simplify these hymn harmonies?

Looking through a (Roman Catholic) German hymnal printed in 1952…

Jeff Ostrowski · September 22, 2025

Can You Identify This “Mystery” Hymn Tune?

Kevin Allen is currently in France.

Jeff Ostrowski · September 21, 2025

PDF Download • “Side-By-Side Comparison”

Re: the special hymn for the upcoming feast (9 November).

Jeff Ostrowski · September 20, 2025

PDF Download • Communion (25th Sn. Ord.)

This Communion antiphon glistens with resplendence!

Jeff Ostrowski · September 15, 2025

New Bulletin Article • “21 September 2025”

Those responsible for preparing parish bulletins may wish to…

Jeff Ostrowski · September 15, 2025

How do you pronounce this word in Latin?

Including a comparison chart (PDF) which many readers will appreciate.

Jeff Ostrowski · September 15, 2025

Cheap! Cheap! Cheap!

It’s always great to see old diocesan newspapers…

Jeff Ostrowski · September 15, 2025

PDF Download • Dom Murray Harmonies

Along with so many others, I have deep respect for Dom Gregory Murray as a composer.

Jeff Ostrowski · September 14, 2025

“Music List” • 14 September (Holy Cross)

Readers have expressed interest in examining the “music list” I prepared for 14 September.

Jeff Ostrowski · September 9, 2025

“Novus Ordo Parish … With Polyphony?” • Is that possible? How specifically does that work?

Many have asked: “Without getting fired, how can choirmasters introduce polyphony to the Ordinary Form?”

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Corpus Christi Watershed

President’s Corner

    Simplified Accomp. • Schubert’s “Ave Maria.”
    Sometimes the organist must simultaneously serve as the CANTOR. (Those who work in the field of church music know exactly what I’m talking about.) One of our contributors composed this simplified keyboard accompaniment for Franz Schubert’s “Ave Maria,” a piece which is frequently requested for Catholic funerals and weddings. In terms of the discussion about whether that piece is too theatrical (‘operatic’) for use in Church, I will leave that discussion to others. All I know is, many church musicians out there will appreciate this simplified version.
    —Jeff Ostrowski
    “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

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

“Participation” in the Mass does not mean hearing our own voices. It means God hearing our voices. Only He knows who is “participating” at Mass. I believe, to compare small things with great, that I “participate” in a work of art when I study it and love it silently.

— Evelyn Waugh

Recent Posts

  • Simplified Accomp. • Schubert’s “Ave Maria.”
  • “The Unselected Hymn” • Do You Recognize It?
  • 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)

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