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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 · August 4, 2025

“Pope Leo XIV Has Announced…”

My pastor asked me to write a column each week vis-à-vis sacred music and liturgy.

Jeff Ostrowski · August 2, 2025

“Chants” • 18th Sunday in Ordinary Time

The Communion chant is stunning.

Jeff Ostrowski · August 2, 2025

“Corn” From Heaven?

Some Americans believe the British version is always better.

Jeff Ostrowski · August 1, 2025

Gospel Acclamation Verses … Nowhere Assigned?

This is quite puzzling to me. Can anyone assist?

Jeff Ostrowski · July 21, 2025

“Music List” • 17th in Ordinary Time (Year C)

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

Jeff Ostrowski · July 21, 2025

Flor Peeters In A Weird Mood?

What do you think of the dissonance on the chord I colored with pink?

Jeff Ostrowski · July 20, 2025

Communion • “Ask & You Shall Receive”

The Communion chant is exceedingly ancient.

Jeff Ostrowski · July 20, 2025

Jeff’s Mother Joins Our Fundraiser

If you have a moment…

Jeff Ostrowski · July 19, 2025

Errors in Latin: “17th Sund. Ordinary”

Even books by Fortescue and Knox have errors.

Jeff Ostrowski · July 18, 2025

“Tell Me Lies; Tell Me Sweet Little Lies.” • Re: Post-Conciliar Lectionary Problems

Do you see how they shamelessly modified the original?

Jeff Ostrowski · July 15, 2025

PDF Download • “Jeff’s Mom Joins Our Fundraiser”

Earlier this year, my mother found out we desperately needed funds and were planning to run a fundraiser…

Jeff Ostrowski · July 14, 2025

“Musicam Sacram” (5 March 1967) • Does It Apply?

During a 2012 job interview with a priest, I was asked…

Jeff Ostrowski · July 14, 2025

“What Martin Luther Said…”

Martin Luther’s hatred for the True Faith was only exceeded by his filthy and disgusting vulgarity.

Jeff Ostrowski · July 12, 2025

“Music List” • 15th in Ordinary Time (Year C)

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

Jeff Ostrowski · July 10, 2025

15th Sunday in Ordinary Time (Year C)

The Offertory this coming Sunday is particularly beautiful.

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Corpus Christi Watershed

President’s Corner

    PDF • “Music List” (Xmas Midnight Mass)
    Readers have expressed interest in perusing the ORDER OF MUSIC I’ve prepared for Christmas Midnight Mass (“Ad Missam In Nocte”). If such a thing interests you, feel free to download it as a PDF file. The ENTRANCE CHANT is simple, but quite beautiful. As always, the Responsorial Psalm, Gospel Acclamation, and Mass Propers for this Sunday are available at the feasts website alongside the official texts in Latin.
    —Jeff Ostrowski
    PDF • “Music List” (4th Sunday of Advent)
    Readers have expressed interest in perusing the ORDER OF MUSIC I’ve prepared for 21 December 2025, which is the 4th Sunday of Advent (Year A). If such a thing interests you, feel free to download it as a PDF file. The ENTRANCE CHANT is the famous “Roráte Coeli” and the fauxbourdon setting of the COMMUNION is exquisite. As always, the Responsorial Psalm, Gospel Acclamation, and Mass Propers for this Sunday are available at the feasts website alongside the official texts in Latin.
    —Jeff Ostrowski
    PDF • Our Lady of Guadalupe (12 Dec.)
    The Responsorial Psalm may be downloaded as a PDF file (organist & vocalist) for 12 December, which is the Feast of Our Lady of Guadalupe. When it comes to the formulary for this Mass, it’s astounding how infrequently it’s included in official books. Prior to Vatican II, one had to search through “supplemental material” printed in the back of hand-missals and graduals. But since 1970, the feast is virtually nonexistent. According to the UNIVERSAL KALENDAR, 12 December is the “Feast of Saint Jane Frances De Chantal, Religious” (Die 12 decembris: S. Ioannæ Franciscæ de Chantal, religiosæ). Why should that feast overpower Our Lady of Guadalupe? In the United States, OLG is celebrated—and I’d assume in Mexico, Central America, South America, and Canada—but, as I said, the Propria Missae are virtually impossible to locate. I possess only three books which mention this feast.
    —Jeff Ostrowski

Quick Thoughts

    What does this mean? “Pre-Urbanite”
    One of the things informed critics have frequently praised vis-à-vis the Saint Jean de Brébeuf Hymnal has to do with its careful treatment of the ancient hymns vs. the “Urbanite” hymns. This topic I had believed to be fairly well understood—but I was wrong. The reason I thought people knew about it is simple; in the EDITIO VATICANA 1908 Graduale Romanum (as well as the 1913 Liber Antiphonarius) both versions are provided, right next to each other. You can see what I mean by examining this PDF file from the Roman Gradual of 1908. Most people still don’t understand that the Urbanite versions were never adopted by any priests or monks who sang the Divine Office each day. Switching would have required a massive amount of effort and money, because all the books would need to be changed.
    —Jeff Ostrowski
    PDF Download • “Santo Santo Santo”
    Those searching for a dignified, brief, simple, bright setting of SANCTUS in Spanish (“Santo Santo Santo”) are invited to download this Setting in honor of Saint John Brébeuf (organist & vocalist). I wonder if there would be any interest in me recording a rehearsal video for this piece.
    —Jeff Ostrowski
    Pope Leo XIV on Sacred Music
    On 5 December 2025, Pope Leo XIV made this declaration with regard to liturgical music.
    —Corpus Christi Watershed

Random Quote

“A theologian who does not love art, poetry, music and nature can be dangerous since blindness and deafness toward the beautiful are not incidental: they are necessarily reflected in his theology.”

— Josef Cardinal Ratzinger (Interview, 1985)

Recent Posts

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  • PDF • “Music List” (Xmas Midnight Mass)
  • What does this mean? “Pre-Urbanite”
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