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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

Mesmerizing Credo Setting (SATB) • After Machaut

Jeff Ostrowski · April 3, 2017

HIS YEAR’S Symposium will be spectacular, and the response—from all over the world—has been overwhelming. The musical program, which is close to being finalized, almost seems a direct response to an article I wrote last January entitled True Vs. False Diversity. We have a bewildering variety of styles, and new works by famous composers will be revealed.

The Credo, arranged by Chaumonot, uses 14th-century polyphony by a Catholic priest named Guillaume de Machaut, who died in 1377AD:

    * *  PDF Download • CREDO based on Guillaume de Machaut

Fr. Machaut’s harmonies begin at the 0:28 marker:

REHEARSAL VIDEOS for each individual voice—along with PDF score—await you at #5984. If you like them, please consider donating $5.00 per month.

274 CREDO TWO YOUNG LADIES IN HIGH SCHOOL, Sarah and Jacqueline, generously helped record the rehearsal videos for these 14th-century harmonies. Sing through each individual line (cf. #5984) because the power is revealed “horizontally.” We created the rehearsal videos to help choirmasters, who have such a difficult vocation! Just the other day, I was pondering how many things music directors do behind the scenes that nobody sees. Even staying in contact with the choir members—phone calls, text messages, emails, and so forth—requires much time and energy. It’s truly a “twenty-four seven” job.

The PDF score mentions how Canon Machaut lived during a difficult period of church history. The Avignon papacy and the Western Schism were both longer in duration than I’d realized. The times in which we live are also difficult, especially from the standpoint of certain members of the hierarchy. Last month, for example, I read a scandalous interview with a high-ranking cardinal that can only be described as disgusting and heretical. For myself, I find it comforting to study history and recall how much the Church has withstood.

Good Catholics in those days sought divine assistance, and we must do the same. Moreover, when you examine the 14th-century Credo used for Chaumonot’s edition, you’ll agree they certainly knew how to create beautiful manuscripts in those days!

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

Filed Under: Articles Last Updated: January 1, 2020

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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

    PDF • “3-Voice Motet” (Father De Laet)
    I believe 99% of our readers will recognize this hymn tune. Perhaps Father Edgard De Laet should have called it a ‘hymn’ instead of a ‘motet for three voices’—but he’s technically correct, since MOTET is defined as: “a short piece of sacred choral music, typically polyphonic and unaccompanied.” The even verses are for three voices, as you will see if you download the PDF score at #20245. The odd verses may be song a cappella SATB or unison with organ.
    —Jeff Ostrowski
    PDF Download • “Hymn for 2 Voices”
    Readers who click on this video will see that it starts with verses of the “Pange Lingua” hymn by Saint Thomas Aquinas (d. 1274) arranged for two voices. However, there’s a polyphonic refrain (“Tantum Ergo”) for three voices, taken from Kevin Allen’s Motecta Trium Vocum. If your choir is very small, this piece is for you! You can download the PDF score free of charge—and you can also utilize the rehearsal videos for each individual voice—by navigating yourself to #20323.
    —Jeff Ostrowski
    “Holy Name Hymn” (2-Voice Arrangement)
    When we post a direct URL link, we frequently get thousands of downloads. But when scrolling is required, very few take the time. I mention this because those who click on this URL link and scroll to the bottom can download—completely free of charge—a clever 2-voice arrangement for a famous hymn to the Most Holy Name of Jesus. In a pinch, it can be nicely sung by one male and one female! It will be of interest to those who seek arrangements for two voices.
    —Jeff Ostrowski

Quick Thoughts

    PDF Chart • “Plainsong Rhythm”
    I will go to my grave without understanding the lack of curiosity so many people have about the rhythmic modifications made by Dom André Mocquereau. For example, how can someone examine this single sheet comparison chart and at a minimum not be curious about the differences? Dom Mocquereau basically creates a LONG-SHORT LONG-SHORT rhythmic pattern—in spite of enormous and overwhelming manuscript evidence to the contrary. That’s why some scholars referred to his method as “Neo-Mensuralist” or “Neo-Mensuralism.”
    —Jeff Ostrowski
    “Reminder” — Month of January (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. Signing up couldn’t be easier: simply scroll to the bottom of any blog article and enter your email address.
    —Jeff Ostrowski
    PDF • “O Come All Ye Faithful” (Simplified)
    I admire the harmonization of “Adeste Fideles” by David Willcocks (d. 2015), who served as director of the Royal College of Music (London, England). In 2025, I was challenged to create a simplified arrangement for organists incapable of playing the authentic version at tempo. The result was this simplified keyboard arrangement (PDF download) based on the David Willcocks version of “O Come All Ye Faithful.” Feel free to play through it and let me know what you think.
    —Jeff Ostrowski

Random Quote

“The replies to this committee (of which Mgr Bugnini was the secretary) reveal a desire to reform the liturgy. In what sense? Out of 2,109 responses from bishops, just three expressed the desire to restore Communion under both kinds. There was a sizable demand for limited use of the vernacular, but only one French bishop wanted the entire Mass in French.”

— Fr. Dominic Allain (2019)

Recent Posts

  • PDF Chart • “Plainsong Rhythm”
  • PDF • “3-Voice Motet” (Father De Laet)
  • PDF Download • “Hymn for 2 Voices”
  • (January 2026) • “Children Singing Plainsong”
  • “Inquiry” • For Music Directors of Cathedrals and Larger Parish Churches

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