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Corpus Christi Watershed

Jesus said to them: “I have come into this world so that a sentence may fall upon it, that those who are blind should see, and those who see should become blind. If you were blind, you would not be guilty. It is because you protest, ‘We can see clearly,’ that you cannot be rid of your guilt.”

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Views from the Choir Loft

“Agnus Dei” For Three Voices • Guillaume Dufay

Jeff Ostrowski · September 19, 2015

E HAVE BEEN ENCOURAGING choirmasters to use Solfège when training their choirs, but many readers are confused about why Solfège would help. The following piece demonstrates very well why Solfège is the best way to train amateurs in polyphony. During rehearsal, if your singers are missing a phrase, you can easily correct it when it’s done in Solfège. Isolating the incorrect pitches is much more difficult without Solfège:


For the record, my choir absolutely loves singing this Agnus Dei. It took us a while to learn, but has become one of our favorites now that it’s “clicked.”

    * *  PDF Download • “AGNUS DEI” by Guillaume Dufay (d. 1474)

EQUAL VOICES : YouTube   •   Mp3 Audio

HIGHEST VOICES : YouTube   •   Audio

MIDDLE VOICES : YouTube   •   Audio

BOTTOM VOICES : YouTube   •   Audio

The lowest voices must sing very, very softly when they ascend to the high notes—in falsetto if possible—otherwise the balance will be wrecked.

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

Filed Under: Articles Tagged With: Composer Guillaume Dufay died in 1474 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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Corpus Christi Watershed

President’s Corner

    Is the USCCB trolling us?
    I realize I’m going to come across as a “Negative Nancy” … but I can’t help myself. This kind of stuff is beyond ridiculous. There are already way too many options in the MISSALE RECENS. Adding more will simply confuse the faithful even more. We seriously need to band together and start creating a “REFORM OF THE REFORM” Missale Romanum so it will be ready when the time comes.
    —Jeff Ostrowski
    “Common” Responsorial Psalm?
    I try to avoid arguing about liturgical legislation (even with Catholic priests) because it seems like many folks hold certain views—and nothing will persuade them to believe differently. You can show them 100 church documents, but it matters not. They won’t budge. Sometimes I’m confronted by people who insist that “there’s no such thing” as a COMMON RESPONSORIAL PSALM. When that happens, I show them a copy of the official legislation in Latin. I have occasionally prevailed by means of this method.
    —Jeff Ostrowski
    “Music List” • 5th Sunday of Easter (Year C)
    Some have expressed interest in perusing the ORDER OF MUSIC I prepared for the 5th Sunday of Easter (18 May 2025). If such a thing interests you, feel free to download it as a PDF file. The Communion Antiphon was ‘restored’ the 1970 Missale Romanum (a.k.a. MISSALE RECENS) from an obscure martyr’s feast. Our choir is on break this Sunday, so the selections are relatively simple in nature.
    —Jeff Ostrowski

Quick Thoughts

    Antiphons Don’t Match?
    A reader wants to know why the Entrance and Communion antiphons in certain publications deviate from what’s prescribed by the GRADUALE ROMANUM published after Vatican II. Click here to read our answer. The short answer is: the Adalbert Propers were never intended to be sung. They were intended for private Masses only (or Masses without music). The “Graduale Parvum,” published by the John Henry Newman Institute of Liturgical Music in 2023, mostly uses the Adalbert Propers—but sometimes uses the GRADUALE text: e.g. Solemnity of Saints Peter and Paul (29 June).
    —Corpus Christi Watershed
    When to Sit, Stand and Kneel like it’s 1962
    There are lots of different guides to postures for Mass, but I couldn’t find one which matched our local Latin Mass, so I made this one: sit-stand-kneel-crop
    —Veronica Brandt
    The Funeral Rites of the Graduale Romanum
    Lately I have been paging through the 1974 Graduale Romanum (see p. 678 ff.) and have been fascinated by the funeral rites found therein, especially the simply-beautiful Psalmody that is appointed for all the different occasions before and after the funeral Mass: at the vigil/wake, at the house of the deceased, processing to the church, at the church, processing to the cemetery, and at the cemetery. Would that this “stational Psalmody” of the Novus Ordo funeral rites saw wider usage! If you or anyone you know have ever used it, please do let me know.
    —Daniel Tucker

Random Quote

Pope Gelasius in his 9th Letter to the Bishops of Lucania condemned the evil practice which had been introduced of women serving the priest at the celebration of Mass. Since this abuse had spread to the Greeks, Innocent IV strictly forbade it in his letter to the Bishop of Tusculum: “Women should not dare to serve at the altar; they should be altogether refused this ministry.” We too have forbidden this practice in the same words in Our oft-repeated constitution “Etsi Pastoralis” (§6, #21)

— Pope Benedict XIV • Encyclical “Allatae Sunt” (26 July 1755)

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  • “For me, Gregorian chant at the Mass was much more consonant with what the Mass truly is…” —Bp. Earl Fernandes

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