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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 · April 29, 2025

“Entrance Chant” • 3rd Sunday of Easter

This “Entrance Chant” is used during liturgical years A, B, and C.

Jeff Ostrowski · April 27, 2025

“Simple English Propers” • Error this Sunday?

Did the good of the Church “genuinely and certainly” require this confusing change in 1970?

Jeff Ostrowski · April 26, 2025

PDF Download • “Extremely Rare” — German Organ Accompaniment for Hymnal (158 pages)

This year, we did something unusual.

Jeff Ostrowski · April 23, 2025

“Reminder” — Month of April (2025)

Since a new month has arrived, it’s my pleasure to remind you that…

Jeff Ostrowski · April 22, 2025

“Why Choir Directors Fail” • Six Reasons

Re: Singing in front of 580 people!

Jeff Ostrowski · April 18, 2025

(2025) • “Vexilla Regis” + “Ubi Caritas”

But they said: “Lord, behold here are two swords.” And He said to them: “It is enough.” —Luke 22:38

Jeff Ostrowski · April 18, 2025

“Music List” • Easter Sunday

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

Jeff Ostrowski · April 17, 2025

Caught on Video! • Choir Director’s Disturbing Holy Week “Meltdown”

Since Covid-19, many Catholic churches “live-stream” their Masses … and this disturbing footage emerged.

Jeff Ostrowski · April 15, 2025

PDF Download • Exceedingly Rare! — “The Torn Tunic” (122 pages) … published in 1967

Is Tito Casini correct that vernacular plainsong is a “sin against nature?”

Jeff Ostrowski · April 14, 2025

“Our Trials” • Choirmaster Crosses

How can we experience peace of soul when most people don’t even understand the mental trauma we deal with?

Jeff Ostrowski · April 13, 2025

PDF Download • “Easter Sunday Introit”

In accordance with the official edition.

Jeff Ostrowski · April 12, 2025

“Music List” • Holy Thursday

Readers have expressed interest in examining the “music list” I prepared for Maundy Thursday.

Jeff Ostrowski · April 11, 2025

PDF Download • “Communion” (Holy Thursday)

Its verses are quite beautiful.

Jeff Ostrowski · April 10, 2025

“Ubi Caritas” • Knox Translation (1950s)

What a treasure!

Jeff Ostrowski · April 10, 2025

“Music List” • Palm Sunday

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

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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

“We decided to entrust this work to learned men of our selection. They very carefully collated all their work with the ancient codices in Our Vatican Library and with reliable, preserved or emended codices from elsewhere. Besides this, these men consulted the works of ancient and approved authors concerning the same sacred rites; and thus they have restored the Missal itself to the original form and rite of the holy Fathers.”

— ‘Pope St. Pius V (Quo Primum, 1570)’

Recent Posts

  • PDF • “Music List” (Sunday, 28 December)
  • 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.”

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