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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 10, 2019

(captured by iPhone) • Rehearsing for the Symposium

Do me a huge favor…

Jeff Ostrowski · April 9, 2019

Brébeuf Harmony Edition • “Splendid Beyond Words”

Folks, there’s just one word for this: WOW.

Jeff Ostrowski · April 8, 2019

PDF Download • Spectacular “Tenebrae” Booklet

Mr. Albert Bloomfield has done us a breathtaking favor.

Jeff Ostrowski · April 6, 2019

St. Michael the Archangel Prayer…in Gregorian Chant!

From a rare book of Franciscan chants (1902)

Follow the Discussion on Facebook

Jeff Ostrowski · April 4, 2019

PDF Download • Mystery Kyriale (100 Pages)

Nobody knows the author or date of publication.

Jeff Ostrowski · March 19, 2019

A Short Piece We’re Singing For Lent

A few weeks ago, I had the opportunity to sit down with one of the smartest Catholic priests alive.

Jeff Ostrowski · March 14, 2019

“Sarum Rite” • Did it exist? What is it?

“To contrast Ancient Sarum with Modern Roman is absurd.” —Fr. Adrian Fortescue (1912)

Jeff Ostrowski · March 13, 2019

Offensive Music in Germany • Ash Wednesday (2019)

Have you ever seen a liturgical “instrument” like this?

Jeff Ostrowski · March 7, 2019

“The New Mass” • Discussed by Michael Davies, Malachi Martin, Msgr. Champlin, and William F. Buckley

Fascinating debate recorded 22 April 1980.

Jeff Ostrowski · March 4, 2019

“Lacuna” • An Actual One—Not A Fake One

Read these entries—and then tell me your head isn’t spinning!

Jeff Ostrowski · February 28, 2019

PDF • “Additional Versions of the Credo” (1934)

This morning, fascinating versions of the Credo arrived in my inbox—versions I had never seen!

Jeff Ostrowski · February 20, 2019

When You Go To Mass … Be This Guy!

Bringing a falcon to Mass never crossed my mind…

Jeff Ostrowski · February 19, 2019

An Outrageous “Paradox” I Cannot Accept

I’m not someone who believes everything was perfect before Vatican II—but calling the EF “worldly” compared to the OF is just silly.

Jeff Ostrowski · February 14, 2019

Update! • Accompaniments for the Brébeuf Hymnal

Oh, if only…if only you knew what’s going on behind the scenes!

Jeff Ostrowski · February 11, 2019

Breaking! • Father Edwin C. Dwyer Development?

Did Bishop A. Hurley have a change of heart?

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Corpus Christi Watershed

President’s Corner

    PDF Download • “For Pentecost Sunday”
    Yesterday morning, I recorded myself singing the ENTRANCE CHANT for Pentecost Sunday while simultaneously accompanying myself on the pipe organ. Click here to see how that came out. At the end of the antiphon, there’s a triple Allelúja and I just love the chord at the end of the 2nd iteration. The organ accompaniment—along with the musical score for singers—can be downloaded free of charge at the flourishing feasts website. For the record, the antiphon on Pentecost Sunday doesn’t come from a psalm; it comes from the book of Wisdom.
    —Jeff Ostrowski
    PDF Download • “Organ Accompaniment”
    Over the past few years, I’ve been harmonizing all the vernacular plainsong Introit settings by the CHAUMONOT COMPOSERS GROUP. This coming Sunday—10 May 2026—is the 6th Sunday of Easter (Year A). The following declaration will probably smack of “blowing my own horn.” However, I’d rank this accompaniment as my best yet. In this rehearsal video, I attempt to sing it while simultaneously accompanying myself on the pipe organ. The musical score [for singers] as well as my organ accompaniment can be downloaded free of charge from the flourishing feasts website.
    —Jeff Ostrowski
    “Gregorian Chant Quiz” • 4 May 2026
    A few days ago, the CORPUS CHRISTI WATERSHED Facebook page posted this Gregorian Chant quiz regarding a rubric for the SEQUENCE for the feast of Corpus Christi: “Lauda Sion Salvatórem.” There is no audience more intelligent than ours—yet surprisingly nobody has been able to guess the rubric. Drop me an email with the right answer, and I’ll affirm your brilliance to everyone I encounter!
    —Jeff Ostrowski

Quick Thoughts

    “Thee” + “Thou” + “Thine”
    Few musicians realize that various English translations of Sacred Scripture were granted formal approval by the USCCB and the Vatican for liturgical use in the United States of America. But don’t take my word for it! Here are four documents proving this, which you can examine with your own eyes. Some believe the words “Thine” and “Thou” and “Thee” were forbidden after Vatican II—but that’s incorrect. For example, they’re found in the English translation of the ‘Our Father’ at Mass. Moreover, the Revised Standard Version (Catholic Edition) mentioned in those four documents employs “Thine” and “Thou” and “Thee.” It was published with a FOREWORD by Westminster’s Roman Catholic Archbishop (John Cardinal Heenan).
    —Jeff Ostrowski
    “Reminder” — Month of May (2026)
    On a daily basis, I speak to people who don’t realize we publish a free newsletter (although they’ve followed our blog for years). We have no endowment, no major donors, no savings, and refuse to run annoying ads. As a result, our mailing list is crucial to our survival. It couldn’t be easier to subscribe! Just scroll to the bottom of any blog article and enter your email address.
    —Jeff Ostrowski
    Simplified Version • “Canon in D” (Pachelbel)
    I published an article on 11 November 2023 called Wedding March For The Lazy Organist, which rather offhandedly made reference to a simplified version I created in 2007 for Pachelbel’s Canon. I often use it as a PROCESSIONAL for weddings and quinceañeras. Many organists say they “hate” Pachelbel’s Canon. But I love it. I think it’s bright and beautiful. I created that ‘simplified version’ for musicians coming to grips with playing the pipe organ. It can be downloaded as a free PDF if you visit Andrea Leal’s article dated 15 August 2022: Manuals Only: Organ Interludes Based on Plainsong. Specifically, it is page 84 in that collection—generously offered as a free PDF download. Johann Pachelbel (d. 1706) was a renowned German organist, violinist, teacher, and composer of over 500 works. A friend of Bach’s family, he taught Johann Christoph Bach (Sebastian Bach’s eldest brother) and lived in his house. Those who read Pachelbel’s biography will notice his connection to two German cities adopted as famous hymn tune names: EISENACH and ERFURT.
    —Jeff Ostrowski

Random Quote

“It is also customary in many lands that a brief but meaningful hymn be sung between the Gospel and the sermon. (I note in passing that this custom also preserves the original and primary function of the medieval congregational hymn, which was to frame the sermon.)”

— Professor László Dobszay (2003)

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  • “Thee” + “Thou” + “Thine”

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