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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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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 · December 8, 2018

PDF • “Creator Alme Siderum” (Organ Accompaniment)

Each verse written out, with a translation by Fr. Adrian Fortescue.

Jeff Ostrowski · December 7, 2018

Exclusive images! • Draft Pages (Brébeuf Hymnal)

As you can see, this new hymnal is pleasantly thin and not heavy.

Jeff Ostrowski · November 28, 2018

PDF • “Ecclesia Dei” Responses (14 November 2018)

Several questions deal with music at the Traditional Latin Mass (“Extraordinary Form”).

Jeff Ostrowski · November 25, 2018

First Sunday of Advent at Saint Vitus Parish (LA)

“May we receive Thy mercy, O Lord, in the midst of Thy temple, that with due reverence we may prepare for the coming festival of our redemption.”

Jeff Ostrowski · November 24, 2018

The Only Hymn Father Fortescue Ever Wrote

…including a “Sneak Peek” at the Brébeuf Hymnal.

Jeff Ostrowski · November 15, 2018

PDF Download • Mass Hymns by Fr. Seed, SJ (1906)

How utterly strange to see such items!

Jeff Ostrowski · November 13, 2018

Hymn Texts by Fr. Christopher Phillips

Listen to an original text accepted for publication in the Brébeuf hymnal…

Jeff Ostrowski · November 6, 2018

“Last” Sunday after Pentecost (Extraordinary Form)

“Sir, didst thou not sow good seed in thy field? whence then hath it cockle?” And he said to them, “An enemy hath done this.”

Jeff Ostrowski · November 6, 2018

PDF Download • “Pope Pius XII Hymnal” (1959)

Were you shocked to see the Pius XII Hymnal assigning vernacular hymns to different parts of the Mass?

Jeff Ostrowski · October 30, 2018

“Source Material” • The Saint Jean de Brébeuf Hymnal

We assembled a staggering number of Catholic hymnals and selected only the very best material from each.

Jeff Ostrowski · October 29, 2018

“Lord, take not only my nose…” (Fr. Jogues)

Why prayer doesn’t always “work”—and why that’s a good thing!

Jeff Ostrowski · October 22, 2018

Incredible News! • Re: Mæstro Richard J. Clark

There’s a new music director for the Archdiocese of Boston and Cathedral of the Holy Cross!

Jeff Ostrowski · October 19, 2018

22nd Sunday after Pentecost (Extraordinary Form)

“At that time, the Pharisees went and consulted among themselves, how to ensnare Jesus in His speech…”

Jeff Ostrowski · October 15, 2018

PDF Download • “Sanctus” (SATB) by JS Bach!

Wow … I bet you’ve never heard this piece before!

Jeff Ostrowski · October 10, 2018

Absolute Last Chance: Period!

My friend, Andrew Motyka, asked me to show the “full version” of this famous hymn.

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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

“At the hour for the Divine Office, | as soon as the signal is heard, | let them abandon whatever they may have in hand | and hasten with the greatest speed, | yet with seriousness, so that there is no excuse for levity. | Let nothing be preferred to the sacred liturgy.”

— Rule of St. Benedict (Chapter 43)

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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