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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 · January 16, 2017

Nine Rubrics for Mass in the Extraordinary Form

These rubrics are official; so when does your church begin the Introit?

Jeff Ostrowski · January 14, 2017

Ratzinger talks “Ad Orientem” (2003)

Cardinal Ratzinger’s English is *fantastic* (as this video shows).

Jeff Ostrowski · January 10, 2017

Musical Resources • 2nd Sunday after Epiphany

“May this Communion, O Lord, cleanse us from sin…”

Jeff Ostrowski · January 9, 2017

“Ten Commandments” • for the Choirmaster

Truth is stranger than fiction.

Jeff Ostrowski · January 6, 2017

PDF Download • Epiphany Booklet (FSSP.la)

To match the ancient acrostic, Erasmus changed the first line to “Herodis Hostes.”

Jeff Ostrowski · January 5, 2017

Best Mystery Movie Of All Time!

Every so often, we stumble across true excellence. Here’s a prime example.

Jeff Ostrowski · January 3, 2017

Musical Resources • Holy Family (EF)

Communion anthem: “Jesus went down with them, and came to Nazareth and was subject to them.”

Jeff Ostrowski · January 3, 2017

Major Problems with “Holy Family” Feast

This feast has been moved *four times* since it was created in 1893…but that’s not my problem.

Jeff Ostrowski · January 3, 2017

New Microphone

Please let me know your thoughts in the FB combox…

Jeff Ostrowski · January 2, 2017

“Table Altar” vs. “High Altar” (Novus Ordo)

It’s incorrect to say new Churches must be constructed with table altars.

Jeff Ostrowski · January 1, 2017

A Majestic Christmas Hymn That Isn’t Difficult

“Here lies He in the manger, alleluia, Who reigns without end, alleluia, alleluia.”

Jeff Ostrowski · December 31, 2016

Brave Schola Director Posts “Live” Recording…

A snippet caught by a generous alto at Candle-lit Mass in Hollywood.

Jeff Ostrowski · December 25, 2016

Proof Good People Still Exist

Several singers shown here helped record the Watershed polyphonic rehearsal videos.

Jeff Ostrowski · December 24, 2016

Christmas • When Jackie Gleason Broke Character (Updated)

I forgot something important…

Jeff Ostrowski · December 21, 2016

60 Minutes • “The Pope’s Choir” (Sistine Chapel)

This video sharply condemns the choir’s previous director…a dangerous game.

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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

After sixty years as teacher, composer, and organist, I may state that the Gregorian Chant should be part of the basic material of any musical education, be it religious or secular. The study of it enormously enlarges the spiritual background of any musician. Whereas students in literature will always be required to study Dante, Petrarch and Chaucer, why neglect Gregorian in music education?

— Flor Peeters

Recent Posts

  • Should Catholics Sing Protestant Christmas Carols?
  • PDF • “Music List” (Xmas Midnight Mass)
  • What does this mean? “Pre-Urbanite”
  • “He never had a single day of conflict with anyone.”
  • PDF • “Standard Gregorian Chants for Schools, Churches, Seminaries, & Convents” (1946) —123 pages

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