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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

“Is This an Error?” • The Answer Is Complicated

Jeff Ostrowski · October 13, 2023

N A RECENT article, I said that pedantry can only take the conscientious choirmaster so far. Specifically, I provided three brief audio clips of Glenn Gould breaking the “commitment rule” in three different fugues. For the record, Gould’s teacher was a man named Alberto Guerrero (d. 1959); and you’ll see why I mention this random tidbit if you keep reading. When it comes to the subject of text underlay in Renaissance polyphony, pedantry can sometimes lead us down a false path.

Consider This Example • One of my professors at the conservatory used to say: “An example is worth 1,000 words.” Therefore, consider the following example, which comes from the GLORIA of “Missa Iste Sanctus” by Father Francisco Guerrero (considered one of the greatest composers of all time):

Is This An Error? • Surely you noticed a discrepancy involving Déus Páter omnípotens. Many would assume it’s an error in text underlay … but beware! The reality is—and this is not easy for certain people to accept—such discrepancies happen frequently in Renaissance polyphony. As I explained in the aforementioned article, music’s ultimate purpose is not pedantry.

Before you “correct” the score, consider the following:

(1) Sometimes composers didn’t write out the text underlay for each voice. This seems to have been a “convention”—that is to say, it doesn’t automatically mean instruments (instead of voices) would play that line.

(2) Sometimes the composer’s text underlay was thwarted by his publisher. In graduate school they taught us that not all publishers respected the wishes of composers when it comes to text underlay.

(3) There are instances where Father Guerrero, in a subsequent edition, would make changes to the text underlay—and sometimes these changes were quite interesting! That would suggest even the greatest of composers felt there was some “freedom” involved.

(4) It’s entirely possible that “discrepancies” such as the one shown above are not errors at all. Indeed, the composer may have had a reason for placing particular words at particular spots. As a composer, my text underlay is often determined by vowel sounds I desire at particular moments.

(5) It is absolutely possible that false text underlay crept in because of human error. We know the publishers sometimes paid a “proofreader” who looked over the part books before publication. It is eminently reasonable to assume some proofreaders were more skilled than others.

(6) There was an early composer who stuffed all his compositions into a box shortly before he died. Many years later, the box was opened up. In that case, we can be sure of the composer’s text underlay! But this is seldom the case. If memory serves, Palestrina married a rich woman. Because of this wealth, he was able to publish his own music (which probably means his text underlay is more accurate).

Try this one on for size!

*  PDF Download • GLORIA (Cristóbal de Morales)
—From Missa Mille Regretz.

Article Summary • What I’ve written constitutes the final, irrevocable, unassailable, and indisputable approach to text underlay. 😁 I’m kidding, of course! This subject is fraught with difficulty.

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

Filed Under: Articles Tagged With: Missa Mille Regretz, polyphonic text underlay, Renaissance Text Underlay, Text Underlay Renaissance Sacred Music Last Updated: November 14, 2023

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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

    💲 5.00 💵
    Our tiny 501(c)3 nonprofit organization exists solely by generous readers who donate $5.00 per month. We have no endowment; we have no major donors; we run no advertisements; we have no savings. A donor wrote to us: “I so appreciate all you do and have done, and your generosity is unprecedented. I am honored to be able to make a monthly contribution.” Another monthly donor says: “Thank you for everything CC Watershed does. We are able to add so much solemnity to Holy Mass due to the resources made available here.” Can you spare a few dollars each month to help us survive?
    —Corpus Christi Watershed
    Dom Pothier • Photo from 1904
    Dom Paul Cagin, in a 1904 publication (L’oeuvre de Solesmes dans la restauration du chant grégorien) made sure to include a beautiful image of Dom Pothier, the legendary abbot of St-Wandrille. Also shown is a very young Dom André Mocquereau. Auguste Pécoul—considered the spiritual “son” of Abbat Prosper Guéranger of Solesmes—wrote as follows on 24 June 1901: “To forestall any confusion, let us remember that there is just one Gregorian notation—that restored, according to the ancient manuscripts, by the eminent Abbot of Saint-Wandrille, Dom Pothier.” ✠
    —Jeff Ostrowski
    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

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

“I have, on the other hand, retained several more or less traditional tunes, absolutely valueless and without merit from a musical point of view, but which seem to have become a necessity if a book is to appeal—as I hope this one will—to the varied needs of various churches.”

— A. Edmonds Tozer (1905)

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  • Dom Pothier • Photo from 1904
  • PDF Chart • “Plainsong Rhythm”
  • PDF • “3-Voice Motet” (Father De Laet)
  • PDF Download • “Hymn for 2 Voices”

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