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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

Jeff Ostrowski · February 12, 2020

Protected: « Sundays after Pentecost »

There is no excerpt because this is a protected post.

Jeff Ostrowski · February 11, 2020

Big News! • Symposium Dates Revealed

Woo Hoo! The preëminent conference for Church musicians announces dates for its fifth year!

Jeff Ostrowski · February 11, 2020

Septuagesima Gradual • Strange Formation on Clivis

Is there a “jail” for people who change the official edition of Gregorian Chant?

Patrick Torsell · February 10, 2020

Youth Choristers – Formation Beyond Singing

If we want young people to help restore and promote sacred music, we must get beyond the “what” and the “how” and dig in to the “why.”

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Dr. Alfred Calabrese · February 8, 2020

To Breathe or Not To Breathe

Our choirs should not sound mechanical. Beautiful music its waiting to be discovered.

Dr. Lucas Tappan · February 7, 2020

Westminster Cathedral Choir School: Update

Jeff’s recent post made me think that perhaps a recap of all the events so far at Westminster Cathedral would be helpful to readers.

Jeff Ostrowski · February 7, 2020

“I’m hanging on every word.”—Catholic Organist Group

My friend, Richard J. Clark, sent me a screenshot from the “Catholic Organist Group.”

Jeff Ostrowski · February 7, 2020

When Choirs Prefer A “Real Voice” To Midi

Only an insane person would post this publicly—but I “fit the bill”…so here goes!

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Jeff Ostrowski · February 6, 2020

Short But Superb Film • “Westminster Choir Boys”

The resignation of Martin Baker was quite a shock to the Catholic world.

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Jeff Ostrowski · February 6, 2020

PDF Download • “What Makes A Good Hymn?”

Dr. Terry says: “The melody must be clearly defined, free from triviality and trite clichés, avoiding harmonies that are sugary or sensuous.”

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Jeff Ostrowski · February 5, 2020

Protected: 3rd edition • Saint Edmund Campion Missal

There is no excerpt because this is a protected post.

Dr. Lucas Tappan · February 4, 2020

The Institution as Formator (Part I)

Everyone is searching for a silver bullet. Perhaps it’s a certain education method, a special book or a technique. Standing somewhat in opposition to all of these various techniques and methods is the English choir school, where the director stands in front of the boys and says “that’s an A, now sing it!”

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Jeff Ostrowski · February 4, 2020

PDF Download • “Ave Maris Stella” (Organ Accompaniment)

The 2nd part has blank staves, so you can compose your own harmonies!

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Jeff Ostrowski · February 2, 2020

PDF Booklet • Feast of the Purification (2 February)

Better late than never, right?

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Jeff Ostrowski · January 31, 2020

A Traditional—But Bizarre!—Way To Assist At Mass

Just because I’m aware of something that happened in the past doesn’t mean I endorse it.

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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

“Like all other liturgical functions, like offices and ranks in the Church, indeed like everything else in the world, the religious service that we call the Mass existed long before it had a special technical name.”

— ‘Rev. Adrian Fortescue (THE MASS, page 397)’

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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