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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

Singing the Mass

Fr. David Friel · April 13, 2014

Who Should Proclaim the Passion?

The “Circular Letter Concerning the Preparation and Celebration of the Easter Feasts”

Richard J. Clark · April 4, 2014

A priest who sings both energizes the liturgy and fosters interior prayer.

Once the mass began, the children began singing the Gregorian Introit, and fifteen thousand young people immediately stilled to complete silence.

Richard J. Clark · February 7, 2014

Disparagement Is Not Helping the Cause of Liturgical Reform

Disparagement is not catechesis. It is destructive. If we are to catechize and evangelize, we must put God first, not our own preferences. Meanwhile, we must catechize and strive for the ideal.

Richard J. Clark · January 17, 2014

Gregorian Propers at a Nuptial Mass in “Southie”?

“Southie” is a section of Boston better known from the films “Good Will Hunting” and “The Departed.” It is also infamous for the convicted murderer and gangster, James “Whitey” Bulger. But, yes, glorious Gregorian Propers, polyphony, and hymnody at a Nuptial Mass in “Southie.”

Richard J. Clark · January 3, 2014

Living with Uncertainty

But blessings come and go. Crosses are plentiful. Uncertainty makes life scary. But, no matter who you are, rich or poor, lowly sinner or saint, these words are prayed (hopefully sung) in the funeral mass: “In Paradisum…”

Fr. David Friel · December 15, 2013

Tallis Scholars Live

In Praise of A Polyphonic Credo

Richard J. Clark · November 29, 2013

A Challenge for the “Big Three” — Is there a Market for the Propers?

I have a challenge to the “Big Three” publishers. The propers are the new frontier of liturgical composition. I propose that they get ahead of the curve now.

Richard J. Clark · November 22, 2013

Saint Cecilia and Why the Word is Preeminent

I confront a challenge most musicians of sacred music face: the battle between the Word and musical “feel.” From the Word, emanates a life: all that is love, all that is beauty, all that is sacrifice and service to God.

Richard J. Clark · May 31, 2013

Decisions, Decisions…Progressive Solemnity, and Who Gets to Decide?

The Mass is a sung prayer and our greatest prayer. As such, it is not our goal to “make” something happen in liturgy. Only God can do that. Any role we have is God’s gift of grace to us. The sooner we understand that, the better we will fulfill our ministry and mission.

Richard J. Clark · May 24, 2013

Surprise! Musical Hierarchy in “Sing to the Lord: Music in Divine Worship”

The priorities of what we should sing at mass are full of surprises for some. I hope in the end that the greater “surprise” will be in how our prayer is formed by what we sing. I hope this will be the most pleasant surprise of all.

Richard J. Clark · March 20, 2013

Free Communion Propers for the Easter Season, Year C

Free download of Communion Propers for the Easter Season, Year C

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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

To the extent that the new sacred music is to serve the liturgical celebrations of the various churches, it can and must draw from earlier forms — especially from Gregorian chant — a higher inspiration, a uniquely sacred quality, a genuine sense of what is religious.

— Pope John Paul II (June 1980)

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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