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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 11, 2019

Video • What Are Common Hymn Melodies?

Short demonstrations by a volunteer parish choir!

Jeff Ostrowski · November 8, 2019

PDF Download • A Eucharistic Piece My Choir Loves

Including a “preview” of the forthcoming Brébeuf Hymnal SATB Choral Supplement.

Jeff Ostrowski · October 28, 2019

What Choirmasters Do.

In case you’re wondering: the photo on the upper right is me—taken on Saturday night.

Jeff Ostrowski · October 23, 2019

Fascinating! • Tridentine “Permission Slip” (1985)

In this riveting document, Archbishop Weakland forbids one’s child from attending a Low Mass—wicked beyond a doubt!

Jeff Ostrowski · October 21, 2019

New Typesetting! • “Kyriale Supplement” (1934)

Mr. Andrew Hinkley has done something marvelous…again!

Jeff Ostrowski · October 19, 2019

PDF Download • Palestrina Kyrie (Part 2 of 3)

“Dazzlingly luscious” is probably best way to describe this Mass.

Jeff Ostrowski · October 16, 2019

“Hidden” Hymns by Cardinal Newman

Fr. Nicholls points out that Saint Newman was an admirer of Beethoven at a time when Beethoven was still living.

Jeff Ostrowski · October 10, 2019

Incredible!!! • Ancient Kyriale MSS for Download

Through the centuries, we observe a remarkable stability—in spite of variants, which will always exist.

Jeff Ostrowski · October 7, 2019

PDF Download • SATB “Sanctus” by Orlando de Lassus

We have completed part 1. When part 2 is finished, we’ll release that, as well.

Jeff Ostrowski · October 3, 2019

Pope Francis: “Promote The Presence Of The Schola Cantorum In Every Parish Community!”

Pope Francis said (28 September 2019) that liturgical music must be Holy, Artistic, and Universal.

Jeff Ostrowski · October 2, 2019

Veronica Brandt • “Lalande Drop-Cap Letters”

Editing Code in the Classic Editor There are two tabs to the right of the content box: Visual and Text. Choose Text to edit the code. Choose Visual for a rough idea of how it will look. Editing Code in the Block Editor Each paragraph block has a menu bar which pops up when that […]

Jeff Ostrowski · September 30, 2019

Brave Schola Director Posts iPhone Recording

Sometimes the obstacles faced by choirmasters seem completely overwhelming.

Jeff Ostrowski · September 24, 2019

Brébeuf Review! • “Society for Catholic Liturgy”

“The editors of the Brébeuf Hymnal have done a great service to the profession.” —Aaron James, Ph.D.

Jeff Ostrowski · September 20, 2019

PDF Download • Palestrina Kyrie “Fons Bonitatis”

This is part 1 of 3 — and the other parts will be released soon.

Jeff Ostrowski · September 16, 2019

“Dies Irae” • Why Does It Appear In So Many Movies?

Veronica Brandt wrote about this in 2014. This morning, VOX made her article into a YouTube.

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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

“Partly on account of these alterations, and partly because I have been unable to ascertain the authorship of many compositions—which have come to me either in manuscript or through other collections—I have thought it right to publish the volume without appending the names of writers to their works. This, however, I confess to be a defect…”

— Benjamin Hall Kennedy (1863)

Recent Posts

  • Every Artist Needs a Refuge
  • 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)

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