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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 28, 2016

Unbelievable Track Recorded By One Voice!

I had the pleasure of meeting Mr. Pete Avendaño at the Sacred Music Symposium, held each year in Los Angeles.

Jeff Ostrowski · November 27, 2016

Musical Resources • 1st Sunday of Advent 1

“May we receive Thy mercy, O Lord, in the midst of Thy temple…”

Jeff Ostrowski · November 26, 2016

Meatless Fridays • Were We Taught Correctly?

“Ever wonder why McDonald’s decided in 1962 to put a piece of fish into a hamburger bun?” —Bishop Earl Boyea

Jeff Ostrowski · November 23, 2016

PDF Download • “Ordo Missæ” As We Use It

Do you provide something similar for your choirs?

Jeff Ostrowski · November 22, 2016

Resplendent Christmas Piece for Two Voices!

This gem by Fr. Nicolas du Peron (d. 1963) incorporates Christmas carols in a most ingenious way.

Jeff Ostrowski · November 19, 2016

Fr. James Fryar, FSSP, on EWTN (16 November 2016)

How Much Do You Know About The Latin Mass?

Jeff Ostrowski · November 15, 2016

Did Pope Francis Denigrate “Rigid” Young Catholics?

If 500 people attend Mass and one acts as lector, there are still 499 people “not participating” by that flawed logic…

Jeff Ostrowski · November 14, 2016

Gorgeous Picture • “The Visitation”

Quite interesting, containing additional mysteries for those who look carefully…

Jeff Ostrowski · November 10, 2016

Musical Resources • 13 November (1962 Missal)

He said, “Make room there; for the girl is not dead, but sleepeth.” And they laughed Him to scorn.

Jeff Ostrowski · November 9, 2016

Complete “Ite Missa Est” for Parish Organist

Accompaniments by Achille P. Bragers (1887-1955).

Jeff Ostrowski · November 8, 2016

Do You Recognize This Hymn Tune?

The Brébeuf hymnal will include texts by contemporary Roman Catholic poets.

Jeff Ostrowski · November 8, 2016

Hysteria Over CDW Appointments?

Including two myths: one about the EF, and one about the OF.

Jeff Ostrowski · November 8, 2016

Do You Recognize This Hymn Tune? 1

The Brébeuf hymnal will include texts by contemporary Roman Catholic poets.

Jeff Ostrowski · November 4, 2016

Musical Resources • 6 November (Extraordinary Form)

“Grant that…through this sacrament which we have received, whatever is evil in our hearts may be restored by its gift of healing.”

Jeff Ostrowski · November 3, 2016

New Release! • “Dies Irae” Rehearsal Video

Also includes a printable score with literal English translation!

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Corpus Christi Watershed

President’s Corner

    PDF Download • Communion for Sunday
    The COMMUNION ANTIPHON with fauxbourdon psalm verses for this coming Sunday (3 May 2026) is elegant and poignant. It’s such a shame it only comes every three years. This piece—along with all the musical scores for this coming Sunday, which is the 5th Sunday of Easter (Year A)—can be downloaded free of charge from the flourishing feasts website. By the way, how is it already 2026?
    —Jeff Ostrowski
    Season’s End Repertoire
    Looking at the REPERTOIRE SHEET until the end of the choral season, I see that I’ve fallen behind schedule. (The last three months have been extraordinarily busy.) As you know, I have been providing organ harmonies for all the ENTRANCE CHANTS—as well as rehearsal videos—and you can see I’m behind where I planned to be. Now I must make up lost ground. However, the choir picks up the ENTRANCE CHANT with ease, so I’m sure it will all work out. My ‘unofficial’ harmonizations are being posted each week at the flourishing feasts website.
    —Jeff Ostrowski
    PDF Download • “Funeral Procession”
    From a mediæval Book of Hours, I was sent this glorious depiction of a Roman Catholic funeral procession by Simon Bening (d. 1561). The image resolution is extremely high. I’m not sure I know of a more beautiful illustration of a mediæval church. And I love how the servers are wearing red and pink cassocks!
    —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

“Urban VIII appointed four Jesuits to reform the hymns, so that they should no longer offend Renaissance ears. These four, in that faithful obedience to the Holy See which is the glory of their Society, with a patient care that one cannot help admiring, set to work to destroy every hymn in the office.”

— Fr. Adrian Fortescue (1916)

Recent Posts

  • PDF Download • Communion for Sunday
  • “Translating the Bible” • Msgr. Ronald Knox (1953)
  • Season’s End Repertoire
  • PDF Download • “Funeral Procession”
  • Re: The “Correct” Way To Sing Gregorian Chant

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