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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

Corpus Christi Watershed · October 13, 2013

Gregorian Chant Chironomy Video

What’s it like to attend the Sacred Music Colloquium?

Jeff Ostrowski · October 13, 2013

True Liturgical Abuse … And Rex Harrison

On 17 April 1980, Blessed John Paul II approved and confirmed a document saying, “Females are not permitted to act as altar servers.”

Veronica Brandt · October 12, 2013

Jump start your rehearsal

Packing more chant into your regular rehearsal.

Jeff Ostrowski · October 11, 2013

1945 Vernacular Mass Card (German)

I always enjoy seeing “participation aids” from days of old …

Jeff Ostrowski · October 11, 2013

Addams Family Theme Song … At Mass?

Is it really true that any style of music can be lawfully used at Mass?

Richard J. Clark · October 11, 2013

“Requiem pour une américaine à Paris” on “Sounds from the Spires”

Inspired by the Gregorian Chant propers of the Requiem Mass, Richard J. Clark’s “Requiem pour une américaine à Paris” was recently featured on “Sounds from the Spires” on SIRIUS XM 129 Radio, The Catholic Channel, hosted by Dr. Jennifer Pascual, Director of Music of St. Patrick’s Cathedral in NYC.

Corpus Christi Watershed · October 10, 2013

Bishop Dominique Rey (Fréjus-Toulon) visits Texas

Most Reverend Bishop Dominique Rey recently held a special conference about the Sacred Liturgy called “Sacra Liturgia 2013.”

Jeff Ostrowski · October 10, 2013

Ron Paul & Pope Francis

A Catholic bishop once said to me: “One of the greatest proofs of the truth of Christianity is the fact that the Church is still here in spite of the incompetence and villainy of her frail priests and all-too-human bishops.”

Dr. Peter Kwasniewski · October 10, 2013

“Let My Prayer Rise Like Incense”

It is often said that the earthly liturgy is a participation in the heavenly liturgy. Alas, in many cases this doesn’t fit in with our actual experiences, but there are exceptions. This past summer, heaven visited me in that way.

Andrew R. Motyka · October 9, 2013

Laws of life

A brief post about basic liturgical theology.

Cynthia Ostrowski · October 8, 2013

Catholic Line Art, Black and White • Installment #37

I will be releasing hundreds of these B/W religious line art drawings for free and instant download. These beautiful Catholic “woodcuts” were done with magnificent skill. “Download Free Traditional Catholic Clipart”

Jeff Ostrowski · October 8, 2013

“It wasn’t supposed to happen this way.”

I took Latin in school, and one day someone asked me, “Did you know that in the Middle Ages the Mass used to be in Latin?” I thought, “I wish that still happened, somewhere on earth.”

Jeff Ostrowski · October 7, 2013

Bugnini: the word Alleluia is a “meaningless sound”

It is simply incorrect to say that a “black hole” existed from 600AD until 1965 (when the vernacular was introduced) during which Catholics were not truly adoring God at Mass.

Fr. David Friel · October 6, 2013

Pope Francis in Context

Teach the Beauty of God’s Ways

Veronica Brandt · October 5, 2013

Pedagogy, propers and psalm tones

While psalm tones are comparatively simple, understanding and singing them is still a learned skill. Here are some psalm toned settings of two upcoming Sundays.

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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

“At the hour for the Divine Office, | as soon as the signal is heard, | let them abandon whatever they may have in hand | and hasten with the greatest speed, | yet with seriousness, so that there is no excuse for levity. | Let nothing be preferred to the sacred liturgy.”

— Rule of St. Benedict (Chapter 43)

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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