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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

Pope Francis

Jeff Ostrowski · October 25, 2021

Incorrect Statement (July 2021) by Pope Francis

Early in his pontificate, Pope Francis insisted that others correct him “when he gets off course…”

Follow the Discussion on Facebook

Jeff Ostrowski · July 19, 2021

PDF Download • The “1965 Missal” (1,785 pages)

“Truly Perplexing” • Pope Francis’ Motu Proprio

Richard J. Clark · October 4, 2019

Pope Francis’ Address on Sacred Music: “Liturgy is the first ‘teacher’ of catechism.”

“Do not forget this: the liturgy is the first ‘teacher’ of catechism.” — Pope Francis

Fr. David Friel · March 3, 2019

Leo XIII to St. Katharine Drexel: “What about you?”

Today marks the feast of Mother Katharine Drexel, whom the Holy Father challenged to become a missionary.

Fr. David Friel · March 4, 2018

New Memorial of the Blessed Virgin Mary, Mother of the Church

Invoking Mater Ecclesiae in a new annual feast

Fr. David Friel · December 31, 2017

USCCB Assesses Impact of “Magnum Principium”

Seven Observations on Liturgical Translation and the Recent Motu Proprio

Fr. David Friel · December 17, 2017

Gray Book for Baptism of Children Approved

How will the “confirmatio” and “regonitio” processes unfold in light of “Magnum principium”?

Fr. David Friel · June 12, 2017

Liturgical Reflections of a Papal Master of Ceremonies

Essays from Msgr. Guido Marini

Fr. David Friel · August 28, 2016

On the Spirit of Conservation

A Reflection on the National Parks, Sacred Architecture, and “Laudato Si”

Fr. David Friel · July 30, 2016

“Actuosa Participatio” and the Reception of Holy Communion

Relevant Reflections from “Sacramentum Caritatis.”

Fr. David Friel · July 6, 2016

Pope Francis to Cardinal Sarah: Investigate an Official Reform of the Reform

Highlights from Cardinal Sarah’s Lecture at Sacra Liturgia UK 2016

Fr. David Friel · December 20, 2015

Pope Francis on Collaboration of the Lay Faithful

Remarks during the Ad Limina Visit of the German Bishops

Fr. David Friel · October 18, 2015

World Meeting of Families 2015 & the Papal Visit to Philadelphia — Part 2 of 2

Monsignor Marini’s Final Encouragement to Papal Mass Servers

Fr. David Friel · October 11, 2015

World Meeting of Families 2015 & the Papal Visit to Philadelphia — Part 1 of 2

A Behind-the-Scenes Look

Corpus Christi Watershed · September 29, 2015

Fr. David Friel At The Papal Masses (Part 2)

We are so proud of our own Fr. David Friel.

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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

“But when all aids to a good translation of the Psalms have been made use of, it often happens, from various causes, that some words or phrases of a Psalm remain obscure or unintelligible to the reader. Then it is that explanatory Notes become necessary.”

— Father Charles J. Callan (who founded “The Homiletic and Pastoral Review”)

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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