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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

Contemporary Sacred Music

Fr. David Friel · July 24, 2022

Free Folio of New Sacred Music for Parish Liturgies

A gift from The Catholic Sacred Music Project and the Benedict XVI Institute

Fr. David Friel · May 9, 2021

Virtual Sacred Music Colloquium 2021

Alongside many familiar faces, several new presenters are joining the faculty this year.

Follow the Discussion on Facebook

Fr. David Friel · December 16, 2019

Liturgica • Interview with Chris Mueller on the Release of New CD

Mueller discusses his recently released recording of original compositions and Renaissance masterworks.

Fr. David Friel · October 24, 2019

“Mass of the Americas” • Solemn Pontifical High Mass in DC

Archbishop Cordileone will offer Mass November 16, 2019 at the Basilica of the National Shrine of the Immaculate Conception.

Jeff Ostrowski · September 15, 2017

“O Sanctissima” • SATB Contemporary Setting!

I bet you haven’t heard this arrangement!

Jeff Ostrowski · November 22, 2016

Resplendent Christmas Piece for Two Voices!

This gem by Fr. Nicolas du Peron (d. 1963) incorporates Christmas carols in a most ingenious way.

Jeff Ostrowski · July 6, 2016

Sensational Hymn for St. Joseph … with Modern Polyphony!

We’ll be singing this piece a lot because our priest has a special devotion to St. Joseph.

Jeff Ostrowski · March 5, 2016

“Ave Maris Stella” • Take II

Have you ever changed your mind with regard to tempo?

Jeff Ostrowski · January 14, 2016

Staggering Canonic Setting • “Gloria” from Mass III

By the French Roman Catholic composer, Raphaël Mercier (d. 1953).

Jeff Ostrowski · October 30, 2015

“Te Saeculorum” • Simple, Sensational, SATB

Were you aware of this amazing piece by Raphaël Mercier?

Jeff Ostrowski · July 7, 2015

Short, Fresh, & Beautiful • SATB “Ave Maris Stella”

This piece by Fr. Antonin Lhoumeau will knock your socks off!

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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

“By a decree of the synod of the diocese of Exeter in 1284, no one should claim any seat in a church; but whoever first entered a church for the purpose of devotion, might choose at his pleasure a place for praying.”

— A work by Fr. Husenbeth (d. 1872)

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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