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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 · September 8, 2022

Feedback: “The Lack of Charity in Your Statement Stuns Me!” • Defending the English

“Was Mr. Ostrowski ever forced to see the choir stalls he sang in as a boy demolished by iconoclasts?” — Reader from Atlanta (9/8/2022)

Jeff Ostrowski · September 8, 2022

“Pronouncing the Responses at Mass” • Phonetic Booklet for Altar Boys (Latin Mass)

This would make a splendid gift for boys attempting to memorize the Latin Mass responses.

Jeff Ostrowski · September 7, 2022

“British Polyphony” • The Best 55 Seconds In Music!

The paradigmatic English sonority can only be described as “haunting.” There’s nothing else quite like it.

Jeff Ostrowski · September 6, 2022

PDF Download • “Organ Interludes—including pedals—on Plainchant Melodies” (55 pages)

Father Ould and William Sewell (organist at the Birmingham Oratory of Saint Philip Neri) produced an impressive collection.

Jeff Ostrowski · September 1, 2022

“Face-To-Face” • Card. Roche + Pope Emeritus B16

Cardinal Roche met with Pope Emeritus Benedict XVI on 27 August 2022.

Jeff Ostrowski · August 31, 2022

“Intriguing Quote” • Msgr. Richard J. Schuler

“The new 𝑀𝑖𝑠𝑠𝑎𝑙𝑒 𝑅𝑜𝑚𝑎𝑛𝑢𝑚 of Pope Paul VI is essentially the same missal that was in use from the time of the Council of Trent…” — Msgr. Richard J. Schuler

Jeff Ostrowski · August 30, 2022

PDF Download • “Tantum Ergo” Two-Part Interlude (Manuals Only) by Flor Peeters

Including a stunningly gorgeous (and rare!) hymn by Flor Peeters.

Jeff Ostrowski · August 29, 2022

“Did The Pope Really Say That?” • Re: Solesmes Rhythm

My response to the recent article by Professor Charles Weaver.

Jeff Ostrowski · August 29, 2022

Heavy Crosses Borne by Choirmasters

In my 25 years as a choirmaster, I’ve witnessed hypocrisy and mistreatment that would make your head spin.

Jeff Ostrowski · August 25, 2022

Have You Done This?

Friends, have you done this yet? I’m talking about subscribing to our free mailing list. We beg you! Do this as soon as possible. Scroll to the bottom of any article, and you will see the place you input your email.

Jeff Ostrowski · August 25, 2022

“New Gregorian Chant Project” • Part 2

Using this coming Sunday (12th Sunday after Pentecost) as an example.

Jeff Ostrowski · August 23, 2022

PDF Download • Organ Accompaniment for Kyrie VIII (“Missa de Angelis”) by Jeff Ostrowski

I consider this my best organ accompaniment … I hope you like it!

Jeff Ostrowski · August 20, 2022

“New Section 2” • (Piecemeal Agnus Dei)

A wonderful way to get volunteers singing SATB polyphony immediately!

Jeff Ostrowski · August 17, 2022

PDF Download • Extremely Rare! — 1913 “Vesperale” by Schwann (954 pages)

Today’s release will go down in history!

Jeff Ostrowski · August 15, 2022

PDF • “Organ Interludes” (Manuals Only)

In graduate school, one is taught a valuable lesson: if you emphasize everything, nothing is emphasized. In other words, putting every other word in bold or italic (or both) wrecks your paper. I never to use the word “best”—but today I make an exception. The book of organ interludes released today by my colleague is […]

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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

They were not ashamed to lay their hands on Sedulius, on Prudentius, on St. Ambrose himself. Only in one or two cases does some sense of shame seem to have stopped their nefarious work. They left “Ave maris stella,” “Jam lucis orto sidere,” and St. Thomas Aquinas’s hymns alone (they would have made pretty work of “Sacris solemniis”). In 1629 their mangled remnants were published.

— Rev’d Adrian Knottesford Fortescue (25 March 1916)

Recent Posts

  • “Unfair Characterization” • (But Good Question)
  • “Thee” + “Thou” + “Thine”
  • PDF Download • “For Pentecost Sunday”
  • “Reminder” — Month of May (2026)
  • “Englished” Gregorian Chant • 5 Considerations

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