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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

{ Next Year! } • Somber Kyrie Settings For Lent

Jeff Ostrowski · April 18, 2022

HE FOLLOWING QUOTE has been attributed to St. Augustine: “The only thing you can take with you to Heaven is music.” Whether St. Augustine spoke these precise words or not, it is undeniable that Sacred music has an amazing ability to lift our hearts and minds to God. Sacred music reminds us in a powerful way of the purity of God and the unspeakable beauty of our Creator. Therefore, before I go further, let us listen to a short excerpt of the Kyrie from Messe de Nostre Dame by Guillaume de Machaut (†1377):

Those who enjoyed the excerpt above will be interested in the free PDF score, and are encouraged to listen to the complete recording by Matthew J. Curtis.

EXT YEAR—when the holy season of Lent once more approaches—many Catholic choirmasters will be searching for polyphonic versions of the Kyrie Eleison. As everyone knows, the Gloria is not said during Lent. That means musicians can “get away” with using a slightly longer Kyrie without risking a “heated discussion” with the Pastor after Mass. [I wish it were not this way … but in many parishes, this is the case.] An added bonus would be a Kyrie that also involves the congregation. Even better than that would be a relatively easy polyphonic setting, so that amateur church choirs could sing with confidence (since it’s better to sing a simpler piece very well than to sing a more difficult piece poorly). One good choice might be Kyrie cunctipotens genitor Deus (Trent Codex 90), which has polyphony for three voices as well as Gregorian sections for the congregation. I strongly recommend that anyone considering Trent Codex 90 read this fantastic article by Dr. William Mahrt of Stanford, which appeared in the Sacred Music Journal (Summer 2011, Volume 138, No. 2):

*  PDF Download • Dr. Mahrt’s Article

Regarding this Kyrie Eleyson from Trent Codex 90, Matthew J. Curtis has provided rehearsal videos to help your choir members master this piece:

*  Free PDF Score

*  Mp3 Download • Equal Voices

*  Mp3 Download • Soprano Louder

*  Mp3 Download • Alto Louder

*  Mp3 Download • Tenor Louder

Another beautiful choice (for SATB choirs) might be a Kyrie Eleison based on Joan Brudieu (†1591). Just as in the previous Kyrie, a possible format for all three invocations would be:

Cantor / Congregation / Choir (polyphony).

Here’s a vocal simulation:

Corpus Christi Watershed has provided rehearsal videos for this Brudieu Kyrie Eleison to assist choir members who do not read music well. Just visit this page, which also contains the free PDF score.

Opinions by blog authors do not necessarily represent the views of Corpus Christi Watershed.

Filed Under: Articles, PDF Download Tagged With: Guillaume de Machaut Polyphony, Messe de Nostre Dame Last Updated: April 18, 2022

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About Jeff Ostrowski

Jeff Ostrowski holds his B.M. in Music Theory from the University of Kansas (2004). He resides with his wife and children in Michigan. —(Read full biography).

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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

“As a little child, Christ is presented in the temple, the Lawgiver obeying His law. Here the Redeemer offers Himself and is redeemed at a pauper’s price.”

— Father Augustine Thomas Ricchini (d. 1779)

Recent Posts

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  • 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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