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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

Fr. David Friel · December 31, 2017

USCCB Assesses Impact of “Magnum Principium”

Seven Observations on Liturgical Translation and the Recent Motu Proprio

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.

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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

    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

“The following question is asked by the Most Reverend Lord Bishop of the Diocese of Chur: May this Diocese’s ancient custom be continued of having the Celebrant in Sung Masses (excepting more solemn Masses) intone the Credo and when he is finished reciting it going on immediately to the offertory and finishing it while the credo is being sung by the choir?” (Dubium of Dec 1909)

— 11 December 1909

Recent Posts

  • PDF Download • “Organ Accompaniment”
  • “Gregorian Chant Quiz” • 4 May 2026
  • “Rare Photographs” • Hannibal Bugnini
  • “Regina Caeli” • More Than You Wanted To Know
  • Music List • “5th Sunday of Easter” (Year A)

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