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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

Carmen Gregorianum

Jeff Ostrowski · December 16, 2025

What does this mean? “Pre-Urbanite”

This topic I had believed to be fairly well understood—but I was wrong.

Jeff Ostrowski · December 10, 2025

Soloists in Gregorian Chant?

An “ensemble of soloists” will never sound the same as a true choir.

Jeff Ostrowski · November 1, 2025

“In Paradisum” • Gregorian Chant

While the coffin is being carried to the grave, the following anthem is sung.

Jeff Ostrowski · October 9, 2025

PDF Download • “Offertory” for this Sunday

Anyone know why the Book of Esther was chosen? That same section of Esther was chosen for last Sunday’s Introit.

Dr. Charles Weaver · October 8, 2025

The Real Miracle of Gregorian Chant

It may not have been dictated into a saintly pope’s ear by a dove, but the real story is no less wonderful.

Jeff Ostrowski · October 8, 2025

Why A “Fugue” Here?

I think you will agree about this.

Jeff Ostrowski · May 21, 2025

What No Musicologist Can Explain!

How glorious is Gregorian Chant!

Jeff Ostrowski · January 20, 2025

PDF • “Gloria VIII” on 5 lines!

As of a few minutes ago, you can freely download this PDF score.

Jeff Ostrowski · January 6, 2025

PDF Download • Extremely Rare! —Solesmes “Graduale” acc. to the Official Rhythm (1,049 pages)

Doesn’t it stand to reason that we should sing from this edition in the manner its creators intended?

Jeff Ostrowski · December 19, 2024

“Entrance Chant” • 4th Sunday of Advent

Like so many Advent antiphons, this one is in the first mode and comes from the prophet Isaiah.

Jeff Ostrowski · December 3, 2024

PDF Download • Pristine Scan: Father Mathias’ 1905 Kyriale Organ Accompaniment (186 pages)

Father Mathias served as organist for Strasburg Cathedral, where he founded the “Saint Leo Institute for Church Music” in 1913.

Jeff Ostrowski · November 11, 2024

“Quotation” • Pope Pius X on Plainsong

“That would be to me the finest triumph sacred music could have…” —Giuseppe Cardinal Sarto (1897)

Jeff Ostrowski · November 8, 2024

Huge Discovery! • Rare Document Explains Why There’s a “Spoken” Version of the Propers

His statement is not only foolish, it approaches heresy!

Jeff Ostrowski · November 6, 2024

“Entrance Chant” for this Coming Sunday • Jeff Attempts to Accompany Himself on the Organ

Singing Gregorian Chant lifts one’s spirits. Agree or disagree?

Jeff Ostrowski · November 1, 2024

“All Saints” • Jeff Ostrowski Tries to Simultaneously Accompany His Voice on the Organ

Although it beggars belief, in his entire life Father Josef A. Jungmann never celebrated a sung Mass—not one!

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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

No concession should ever be made for the singing of the Exsultet, in whole or in part, in the vernacular.

— ‘Fr. Augustin Bea, S.J. in the years immediately before the Second Vatican Council’

Recent Posts

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  • PDF • “Music List” (Sunday, 28 December)
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  • PDF • “Music List” (Xmas Midnight Mass)
  • What does this mean? “Pre-Urbanite”

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