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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 25, 2014

Shall The Nuns Save Us? I Think So.

“Let us continue to do the best things in the worst times.”

Jeff Ostrowski · May 25, 2014

The Mystery of Missal vs. Gradual has been solved!

Are there concrete reasons to prefer the ancient texts from the Roman Gradual? Short answer: Yes!

Jeff Ostrowski · May 22, 2014

Maurice Lavanoux • “Liturgical Arts”

Anyone have copies of this old magazine?

Jeff Ostrowski · May 20, 2014

Pope St. John Paul II Celebrates Mass “Ad Orientem”

John Paul II leads the congregation facing the traditional way during his June 1999 visit to Poland.

Jeff Ostrowski · May 19, 2014

PDF Download: Extremely Rare Book Of Propers (1962)

A book which Bugnini called the “precursor” to the Simple Gradual is now online!

Jeff Ostrowski · May 15, 2014

How To Sing The Gregorian Alleluia

The Alleluia can be confusing, especially during Eastertide.

Jeff Ostrowski · May 15, 2014

Would you know my name if I saw you in heaven?

Musicians tend to fight with one another over the DUMBEST things.

Jeff Ostrowski · May 14, 2014

Truly Marvelous Image of Saint Isaac Jogues

This lovely image is courtesy of D.F. — taken at Georgetown University.

Jeff Ostrowski · May 11, 2014

How I Learned What Liturgy Really Is

Congregations in South Texas normally applaud for the musicians during Mass.

Jeff Ostrowski · May 9, 2014

An Unexplained Problem

I’m unaware of ANY other liturgical occurrence like this one.

Jeff Ostrowski · May 5, 2014

PDF Download: Ordo Lectionum Missae & Ordo Cantus Missae

“…otherwise the entire Mass might be placed into the vernacular; whereupon the Council fathers burst into uproarious laughter.” — Cardinal Stickler speaking of Vatican II

Jeff Ostrowski · May 1, 2014

Everything You Ever Wanted To Know About Liturgical Translations

This is no hybrid: it’s an elegant, accurate, modern, unified English translation of the Graduale!

Jeff Ostrowski · April 25, 2014

Thirteen (13) Organ Accompaniments to “Missa de Angelis” (Mass VIII)

Free PDF downloads for “Mass of the Angels” organ accompaniments • Henri Potiron (1950), Achille Bragers (1937), Dr. Eugene Lapierre (1946), Franz Xaver Mathias (1906), Dr. Peter Wagner (1905), Monsignor Leo P. Manzetti (1906), Julius Bas (1906), and more+

Jeff Ostrowski · April 22, 2014

More unites us than divides us!

Musicians tend to be very “picky” people who don’t get along with one another.

Jeff Ostrowski · April 18, 2014

Proclaim the Passion in a “Theatrical” Manner?

Scripture at Mass is an act of worship: it is not purely didactic, nor is it a make-believe drama that we must re-enact with emotion.

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Corpus Christi Watershed

President’s Corner

    PDF • “Music List” (Sunday, 28 December)
    Readers have expressed interest in perusing the ORDER OF MUSIC I’ve prepared for Feast of the Holy Family of Jesus, Mary, & Joseph (28 Dec. 2025). If such a thing interests you, feel free to download it as a PDF file. The FAUXBOURDON verses for the Communion Antiphon are particularly gorgeous. 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” (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

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

“Even after 1600 A.D.—despite major changes in musical taste—the compositions of Father Cristóbal de Morales were reprinted at Venice. Indeed, and as late as 1619 A.D. one Venetian publisher found his magnificats still in sufficient demand to make a profitable commercial venture out of issuing a new transcribed version for equal voices.”

— Dr. Robert Murrell Stevenson (d. 2012)

Recent Posts

  • “O Antiphons” Elevated?
  • PDF • “Music List” (Sunday, 28 December)
  • Should Catholics Sing Protestant Christmas Carols?
  • PDF • “Music List” (Xmas Midnight Mass)
  • What does this mean? “Pre-Urbanite”

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