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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 6, 2021

Live Recording • “Jesus My Lord, My God, My All”

Vernacular hymns at Communion during EF High Mass—your thoughts?

Jeff Ostrowski · April 6, 2021

5 April 2021 • When Girls Sing

Covid restrictions here in California are still extremely severe—switching “two weeks to flatten the curve” into “two years to flatten the curve.” Since 2020, we’ve had police breaking into our church to check if everyone is wearing a mask…even when only 5-6 people are present! But we were allowed to have a small percentage of […]

Jeff Ostrowski · April 4, 2021

(Hymn) • “Jesus Christ Is Risen Today”

…including rehearsal videos for each individual voice.

Jeff Ostrowski · April 2, 2021

Thomas à Kempis says …

From a manuscript created circa A.D. 1497.

Jeff Ostrowski · March 29, 2021

PDF Download • “Hymn to Christ the King” (SATB)

Also included: Five (5) rare rhyming renderings into English.

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Jeff Ostrowski · March 29, 2021

29 March 2021 • FEEDBACK

“E.S.” in North Dakota writes: “I just wanted to take a moment to say THANK YOU for all the hard work you have put—and continue to put—into your wonderful website. In the past two years, my parish has moved from a little house basement into a brand new church and gone from a few families […]

Jeff Ostrowski · March 29, 2021

29 March 2021 • Condemned?

On Palm Sunday, the Passion was read. Immediately after mention is made of the betrayal by Judas, the Holy Eucharist is introduced. Is this not a condemnation of “Christians” who deny the Church teaching on the SANCTISSIMUM? Here is Matthew 26: And Judas that betrayed him, answering, said: “Is it I, Rabbi?” He saith to […]

Jeff Ostrowski · March 25, 2021

Never Released Before! • Unique Version of “O Sacred Head Surrounded” (SATB)

What is a Catholic Hymnal? How old are these hymns?

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Jeff Ostrowski · March 24, 2021

Liturgical Translation: Your Thoughts?

The National Association of Pastoral Musicians has created “liturgical” materials honoring Buddha and Darwin.

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Jeff Ostrowski · March 22, 2021

Church Music’s Best Kept Secret!

Here’s a 20-second audio clip (live) from yesterday. It’s the INTROIT from Passion Sunday, when the Gospel says Jesus “hid himself” because the crowds wanted to kill Him…after He said He was greater than Abraham. Our parish uses The Saint Jean de Brébeuf Hymnal for all sung Masses, and we cherish the choral supplement because […]

Jeff Ostrowski · March 20, 2021

“Glad Trad” vs. “Rad Trad”

We are called to do something very strange…

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Jeff Ostrowski · March 19, 2021

Saint Joseph + Baby Jesus In A Walker

This luscious manuscript was created about A.D. 1453 for a French Noblewoman.

Jeff Ostrowski · March 18, 2021

18 March 2021 • “Close To Death”

When it seemed Father Jean de Brébeuf and his companions were about to meet death on 28 October 1637, he wrote a letter to his superiors. Here’s an excerpt: “It is a singular favor that His Goodness gives us, to allow us to endure something for love of Him. Now it is that we consider […]

Jeff Ostrowski · March 17, 2021

PDF Download • My Favorite Gregorian Hymn

There are so many wonderful Gregorian hymns, but the “HYMN TO SAINT JOSEPH” is my favorite.

Jeff Ostrowski · March 16, 2021

Three Radical Liturgical Changes • (Pope Pius XII)

I love Venerable Pius XII very much, but this particular change was unconscionable.

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Corpus Christi Watershed

President’s Corner

    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
    “Rare Photographs” • Hannibal Bugnini
    On 2 September 2025, we included in this article extremely rare photographs of Archbishop Hannibal Bugnini taken in Iran circa 1979. Bugnini had initially been banished by the pope to Uruguay, but he refused to obey. [This is interesting, since Bugnini relied upon ‘blind obedience’ when it came to modifications of the ancient liturgy.] After he refused to obey the order from the pope, Hannibal Bugnini was banished to Iran. You can also watch a short video of Hannibal Bugnini in Iran, dated 10 November 1979. That’s about a week after the USA embassy hostage crisis began in Tehran, and Pope Saint John Paul II had sent the leader of the Iranian Revolution a special letter.
    —Jeff Ostrowski

Quick Thoughts

    “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
    PDF Download • “Anima Christi”
    I received a request for an organ accompaniment I created way back in 2007 for the “Anima Christi” Gregorian Chant. You can download this PDF file which has the score in plainsong followed by a keyboard accompaniment. Many melodies have been paired with “Anima Christi” over the centuries, but this is—perhaps—the most common one.
    —Jeff Ostrowski

Random Quote

“Come now,” they said, “Thou who wouldst destroy the temple and build it up in three days, rescue Thyself; come down from that cross, if Thou art the Son of God.”

— Gospel of St. Matthew 27:42

Recent Posts

  • “Reminder” — Month of May (2026)
  • “Englished” Gregorian Chant • 5 Considerations
  • Simplified Version • “Canon in D” (Pachelbel)
  • PDF Download • “Organ Accompaniment”
  • “Gregorian Chant Quiz” • 4 May 2026

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