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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

Andrew Leung · January 28, 2016

Diocese of Marquette Taking a Brave Step

Bishop John Doerfler’s new Instruction on Sacred Music in Divine Worship.

Dr. Lucas Tappan · January 27, 2016

Most Pure Heart Schola Cantorum in Rome (Part 2)

Watch the debut of Colin Mawby’s “Ave Maria” in Rome.

Jeff Ostrowski · January 26, 2016

Chosen Your Easter Alleluia Yet?

It’s time—and here’s one you’ll love.

Jeff Ostrowski · January 26, 2016

Not Your Grandmother’s Creed

Composer David Haas posted a striking proclamation on his Facebook page.

Guest Author · January 25, 2016

Reflections on the Change of the Mandatum Rite

A guest article by Mr. Michael Chan, who lives in Hong Kong.

Jeff Ostrowski · January 24, 2016

Musical Resources • Septuagesima Sunday (Extraordinary Form)

Yet the laborer called at the eleventh hour does not taste the joy reserved to one who has “worked and suffered without reckoning the hours.”

Fr. David Friel · January 24, 2016

Motet for Three Voices: “O Crux Ave”

This piece is ideal for use as a motet during the veneration of the Holy Cross at the Good Friday liturgy.

Veronica Brandt · January 23, 2016

Angelus Bells and the Raspberry Pi

Setting a computer up to do something useful, bringing together a credit card sized computer and some midi samples.

Richard J. Clark · January 22, 2016

Lent is near.

Looming over church musicians is a quick transition of liturgical seasons. Here are just a few liturgical works for Lent and Easter.

Andrew Leung · January 21, 2016

Free Downloads • Works by Cardinal Bartolucci (Part 1)

Choral works by Cardinal Bartolucci, former director of the Sistine Chapel Choir, is available for download now!

Dr. Lucas Tappan · January 20, 2016

Most Pure Heart Schola Cantorum … in Rome!

The greatest gift was to be in Rome during the Holy Year of Mercy!

Jeff Ostrowski · January 19, 2016

| Part 3 of 3 | • “Kyrie Eleison” (SATB) within the reach of any choir!

Only one word describes Guerrero’s musical genius: fearsome.

Dr. Alfred Calabrese · January 18, 2016

May 2016 • Major Choral Event In Dallas!

A tremendously exciting moment in the Catholic musical world!

Jeff Ostrowski · January 17, 2016

Musical Resources • 2nd Sunday after Epiphany (Extraordinary Form)

“Sanctify, O Lord, the gifts we offer, and purify us from the stains of our sins…”

Fr. David Friel · January 17, 2016

Sacra Liturgia UK — Registration Now Open

An International Conference on Liturgical Formation in Light of the New Evangelization

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Corpus Christi Watershed

President’s Corner

    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. Simple 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
    ‘German’ Introductions for Hymns
    German organ books have an enchanting habit of including introductions for each and every hymn. For example, consider this snazzy example found in a German hymnal published in 1902. In the Saint Jean de Brébeuf Hymnal, that melody is called “Laudes Mariae” and was married to Omni Die Dic Mariae, with a popular English translation (“Daily, daily, sing to Mary”) by Father Henry Bittleston, an Oratorian priest. Notice they also added a ‘tailpiece’ or ‘playout’ or postlude at the end—a very German thing to do!
    —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

Don Fernando de las Infantas wrote to the Pope, trying to get him to stop Palestrina from corrupting all the plainsong editions: “The errors which certain musicians, in all good faith, think they have found in plainchant are not errors at all, but on the contrary contain some of the most beautiful musical passages ever written.”

— Don Fernando de las Infantas (1578 A.D.)

Recent Posts

  • PDF Download • “Anima Christi”
  • PDF Download • “Rarer Than a Blue Moon” — Side-by-Side English Translation (Pius XII Psalter)
  • Fulton J. Sheen • “24-Hour Catechism”
  • Simplified Accompaniment (Easter Hymn)
  • PDF Download • “Quasi Modo Sunday”

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