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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

Pre-1955 Holy Week

Jeff Ostrowski · December 14, 2025

PDF • “Standard Gregorian Chants for Schools, Churches, Seminaries, & Convents” (1946) —123 pages

Until a few days ago, I knew nothing of this (extremely rare) book. Now it’s been scanned and uploaded—free to all.

Andrea Leal · April 2, 2025

“What is the Best Catholic Missal?” • Video Review by Catholic Family News

“I am shocked this isn’t more well known; this is really a spectacular work.” —Catholic Family News

Jeff Ostrowski · August 30, 2024

Leaked Document! • Comparison Chart—New Responsorial Psalms (“Abbey Psalms & Canticles”)

The NAB tried to use “overly casual” language—and the results are often an abomination.

Jeff Ostrowski · April 11, 2023

“Truly Bizarre!” • Easter Vigil on Easter Sunday?

Rather than allow the traditional times, the Vatican gave permission to allow the Easter Vigil to be celebrated on the morning of Easter Sunday!

Jeff Ostrowski · March 29, 2023

“Seventy-Three (73) Changes” • Which Pope Pius XII Made to Holy Week

If we feel compelled to condemn these changes, let’s at least spend time learning what they are!

Jeff Ostrowski · April 10, 2021

PDF Download • Vespers for Holy Thursday?

“Custom preserves many things in liturgy after their first reason has ceased.” —Father Adrian Fortescue

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Corpus Christi Watershed · March 31, 2021

New Website! • “Restore The 1954 Holy Week”

We are pleased to observe how this site included our liturgical PDF files.

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Jeff Ostrowski · March 16, 2021

Three Radical Liturgical Changes • (Pope Pius XII)

I love Venerable Pius XII very much, but this particular change was unconscionable.

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Jeff Ostrowski · February 28, 2021

(Screenshots) • Proving Holy Saturday Took Place In The Morning

Five reasons keeping Holy Saturday in the morning is a good idea.

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Jeff Ostrowski · July 23, 2020

PDF Download • “Holy Week and Easter with Gregorian Chant” (797 pages)

Supremely rare Belgian book with Gregorian Chant!

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Jeff Ostrowski · April 2, 2018

I Was Wrong to Dread the “Pre-1955” Holy Week

Five (5) differences between the ancient rites of Holy Week (“Pre-1955”) and the Pius XII version.

Jeff Ostrowski · June 21, 2017

Holy Week Bulletin from 1943

Notice when the ceremonies begin!

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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 training in singing, to sing in a chorus, is not only an exercise of external listening and of the voice; it is also training for interior listening, listening with the heart, an exercise in training for life and for peace.”

— Pope Benedict XVI

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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