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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 · December 31, 2017

“Veni Creator Spiritus” • with Fortescue’s English Translation

A plenary indulgence can be gained by singing the “Veni Creator Spiritus” publicly on New Year’s Day.

Jeff Ostrowski · December 31, 2017

“Te Deum” • Printable 4-Page Sheet

…with English Translation by Rt. Rev. Msgr. Charles E. Spence.

Veronica Brandt · December 30, 2017

GABC Propers Tool Revisited

A major shortcut to preparing Gregorian chant propers and ordinaries.

Dr. Lucas Tappan · December 27, 2017

Of the Father’s Love Begotten…

Some day I wouldn’t mind cooking up a good ol’ fashioned Christmas Ball, but ’til then have to content myself with adding a few pounds (or more than a few) in honor of our Lord’s birth.

Veronica Moreno · December 24, 2017

[español] Your Christmas Present

SU REGALO NAVIDEÑO (2014). Jeff Ostrowski y el equipo de CCWatershed comparten ONCE (11) archivos. Incluyen partiduras y apuntes en documentos de PDF, videos de docentes dando clases, y mucho más. ¡Feliz Navidad!

Fr. David Friel · December 24, 2017

Lux Fulgebit: Mass at Dawn of Christmas Day

New recording by the Schola Cantorum of St. Mary’s Church in Norwalk, CT

Jeff Ostrowski · December 24, 2017

Midnight Mass (4th Sunday of December)

“O God, Who hath brightened this most holy night with the shining of the true light…”

Jeff Ostrowski · December 24, 2017

Your Christmas Present!

We met our fundraising goal, so you get these items!

Veronica Brandt · December 23, 2017

Epiphany Proclamation 2018

Fifteen years typing up the Proclamation of Moveable Feasts!

Jeff Ostrowski · December 22, 2017

Cardinal Sarah to celebrate TLM on 21 May 2018

If this is accurate, it’s marvelous news.

Andrew Leung · December 21, 2017

The Marvels of Choral Singing

A reflection and meditation on choral singing.

Jeff Ostrowski · December 21, 2017

Xmas Image • Print for Children to Color

Courtesy of John Sonnen.

Jeff Ostrowski · December 20, 2017

Can You Say “Theft” ?

Unless I am mistaken, John David Chambers stole Neale’s rhymes without attribution.

Jeff Ostrowski · December 19, 2017

“Death” • By John Henry Cardinal Newman

No man can deliver his brother, no make agreement unto God for him.

Corpus Christi Watershed · December 19, 2017

Six Videos • Gregorian Chant (2017)

…produced in association with Saint John the Beloved (McLean, Virginia)

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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

“Orlando de Lassus died in Munich on 14 June 1594, the selfsame day his employer decided to dismiss him for economic reasons. He never saw the letter.”

— New Grove

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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