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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 · May 4, 2015

Video • “Vidi Aquam” Organ Accompaniment By Jeff Ostrowski

The “Method of Gregorian Accompaniment” by Flor Peeters is excellent.

Jeff Ostrowski · May 1, 2015

In This Regard, The EF Cannot Compare To The OF

If you’re searching for “Cum vénerit Paráclitus,” you might want to check the *D* section…

Jeff Ostrowski · May 1, 2015

Resources • 4th Sunday after Easter (1962 Missal)

The Communion can be written “Dum venerit” or “Cum venerit”—both are correct.

Jeff Ostrowski · May 1, 2015

Twelve (12) PDF Guides To Pronouncing Latin

Fr. Carlo Rossini’s is probably the best, but 11 more are also provided.

Jeff Ostrowski · April 30, 2015

Liturgy Gone Wild

What do progressive liturgists truly want?

Jeff Ostrowski · April 29, 2015

Rare Video • Richard Nixon Meets With Pope Paul VI

Footage taken by John Ehrlichman a 1970s “home video reel.”

Jeff Ostrowski · April 29, 2015

Liturgical Silence—But Not What You Think!

When I was young, I would have tried to argue.

Jeff Ostrowski · April 28, 2015

PDF Download • “The Parish Hymnal” (1957)

“The origins of some are not known due to the long and nearly untraceable popular usage they have enjoyed.” —Gregorian Institute

Jeff Ostrowski · April 27, 2015

Brave Schola Director Posts “Live” Recording • Part 2

We’re having a lot of fun…is that bad?

Jeff Ostrowski · April 27, 2015

PDF Download • “Hymns Of The Roman Liturgy” (Rev. Joseph Connelly, 1955)

“These samples from Connelly make less sense in English than the Latin originals would to a North Korean.” —Msgr. Francis P. Schmitt

Jeff Ostrowski · April 24, 2015

Resources • 3rd Sunday after Easter (1962 Missal)

The recording of the Introit “Jubilate Deo” was created by Jeff Ostrowski—hope it helps!

Jeff Ostrowski · April 24, 2015

Polyphonic “Alleluia” for 3 voices • Morales (†1553)

I’ve always believed it’s a mistake to have all-women alto sections and all-men tenor sections.

Jeff Ostrowski · April 23, 2015

Amazing Opportunity for Los Angeles Catholics

Here’s your chance to meet Fr. John Berg, FSSP Superior General, who’s coming all the way from Switzerland.

Jeff Ostrowski · April 22, 2015

“Proper Of The Mass” (Ignatius Press) • Part 7 of 7

Let’s take a stroll down Memory Lane, shall we?

Jeff Ostrowski · April 20, 2015

Pope Visits Prison: “You could not come to me, so I have come to you.”

1300 criminals were present for Benediction.

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Corpus Christi Watershed

President’s Corner

    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
    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

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

“The authority of the Pope is not unlimited. It is at the service of Sacred Tradition. Still less is any kind of general ‘freedom’ of manufacture, degenerating into spontaneous improvisation, compatible with the essence of faith and liturgy. The greatness of the liturgy depends—we shall have to repeat this frequently—on its lack of spontaneity.”

— Josef Cardinal Ratzinger (2000)

Recent Posts

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

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