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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

Articles

Keven Smith · April 18, 2020

Maintaining Easter Joy in a Pandemic

Would you believe Easter Monday is usually one of the darkest days of my year?

William J. Fritz · April 17, 2020

A Blessing and a Curse: Digital Sheet Music

Have you seen a musician using a tablet to read their music as they performed? Ever wondered how that would work in your choir or for you?

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Jeff Ostrowski · April 16, 2020

Yikes! • More Plagiarism from Boise’s Bishop

I did some digging—and the results aren’t pretty. I hope Bishop Christensen will immediately retract his directive, which contains false statements.

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William J. Fritz · April 15, 2020

Repeating Repertoire? • William Fritz

As church musicians, we have incredible responsibility and influence.

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Dr. Lucas Tappan · April 14, 2020

The Overtone Series (Truly) Explained

While other musical scales and musical traditions find their origin in the overtone series, only western civilization has developed nature’s original gift into one of the world’s great achievements: Western music.

Jeff Ostrowski · April 14, 2020

PDF Download • “Victimae Paschali” Organ Accompaniment (Nine Versions)

Organ Accompaniments for “Victimae Paschali Laudes” • Some people love it; others hate it. Regardless, Mocquereau never backed down, and we must admire his tenacity!

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Jeff Ostrowski · April 11, 2020

Without Sacraments • How Saint Isaac Jogues Survived

“His wounds were gangrened, his bare feet left tracks of blood on snow and ice, the deerskin he wore was alive with vermin.”

Andrea Leal · April 10, 2020

Do Not Let Your Voice be Silenced

On spiritual dryness and the loss of the sacraments.

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Jeff Ostrowski · April 9, 2020

Brébeuf Hymn #554 • “Victis Sibi” in English

Better late than never!

Richard J. Clark · April 9, 2020

God will not be outdone in generosity.

People are hungrier than ever for the Gospel. This is a great blessing, and a turning point in our lives and ministries.

Veronica Moreno · April 8, 2020

One more regrettable mistake by the Bishop of Boise, Idaho

See for yourself. On the left is the letter from 2020; on the right is a blog from 2016.

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Jeff Ostrowski · April 8, 2020

PDF Download • Haunting “Alleluia” for Ordinary and/or Extraordinary Form

This piece probably won’t “make sense” the first time you hear it.

Jeff Ostrowski · April 7, 2020

Banning “Ad Orientem” • Six Regrettable Mistakes by the Bishop of Boise, Idaho

Nobody’s perfect; we all make mistakes. His Excellency’s letter must be retracted as soon as possible.

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Jeff Ostrowski · April 6, 2020

CCW President on “Real Presence Radio”

Mr. Matthew L. Willkom and Fr. Randall Kasel (Pastor, St. Michael in Pine Island, MN) interviewed Jeff Ostrowski a few weeks ago.

Veronica Brandt · April 5, 2020

This Holy Week Visit Sydney

The virus has prompted many parishes to livestream their Masses. Veronica showcases four.

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Corpus Christi Watershed

President’s Corner

    “Reminder” — Month of April (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 Accompaniment (Easter Hymn)
    Number 36 in the Brébeuf Hymnal is “At the Lamb’s high feast we sing,” an English translation for Ad Cenam Agni Próvidi (which was called “Ad Régias Agni Dapes” starting 1631). As of this morning, you can download a simplified keyboard accompaniment for it. Simply click here and scroll to the bottom. Many organists are forced to serve simultaneously as both CANTOR and ACCOMPANIST. In spite of what some claim, this can be difficult—which explains why choirmasters appreciate these simplified keyboard accompaniments. Sadly, many readers will click that link but forget to scroll to the bottom where the simplified PDF file is located.
    —Jeff Ostrowski
    PDF Download • “Quasi Modo Sunday”
    The Introit for “Quasi Modo Sunday” (12 April 2026) is particularly beautiful. The musical score can be downloaded as a PDF file, and so can the organ accompaniment. The official language of the Catholic Church is Latin (whereas Greek is our mother tongue). Vatican II said Gregorian Chant must be given “first place” under normal circumstances. As a result, some parishes will rightly sing the authentic version. On the other hand, because so many USA dioceses disobey the mandate of Vatican II, some musicians sing plainsong in the vernacular. I have attempted to simultaneously accompany myself on the pipe organ while singing the English version. Although very few take advantage of it, the complete Proprium Missae is posted at the flourishing feasts website.
    —Jeff Ostrowski

Quick Thoughts

    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
    PDF • “Liturgical Law” (467 Pages)
    On Good Friday during the middle ages, the pope privately recited THE ENTIRE PSALTER. If you don’t believe me, see for yourself by reading this passage by Dom Charles Augustine Bachofen (d. 1943). His famous book—called “Liturgical Law: A Handbook Of The Roman Liturgy”—was published by the Benjamin Herder Book Company, which was the American arm (operating out of St. Louis, Missouri) of one of the world’s most significant Catholic publishers. Dom Charles Augustine Bachofen was born in Switzerland but spent his career between the Benedictine monasteries at Conception (Missouri) and Mount Angel (Oregon). His 1931 masterpiece, Liturgical Law can be downloaded as a PDF file … 467 pages!
    —Jeff Ostrowski
    “Gregorian Chant Quiz” • 24 March 2026
    How well do you know your Gregorian hymns? Do you recognize the tune inserted into the bass line on this score? For many years, we sang the entire Mass in Gregorian chant—and I mean everything. As a result, it would be difficult to find a Gregorian hymn I don’t recognize instantly. Only decades later did I realize (with sadness) that this skill cannot be ‘monetized’… This particular melody is used for a very famous Gregorian hymn, printed in the LIBER USUALIS. Do you recognize it? Send me an email with the correct words, and I promise to tell everybody I meet about your prowess!
    —Jeff Ostrowski

Random Quote

“It is profitable for me that shame hath covered my face so I may seek consolation in Thee rather than in men.” (From the Imitation of Christ by Father Thomas à Kempis)

— Cardinal Merry del Val’s Prayer-Book

Recent Posts

  • “Reminder” — Month of April (2026)
  • “Gregorian Chant Isn’t a Platform for Your Personal Theories, Jeff” • (A Letter We Received)
  • Request From Australia
  • PDF Download • “Anima Christi”
  • PDF Download • “Rarer Than a Blue Moon” — Side-by-Side English Translation (Pius XII Psalter)

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