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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

PDF Download • Belgian “Ordinary of the Mass” (Organ Accompaniment) — 191 pages

Jeff Ostrowski · March 9, 2023

EFARIOUS. The word nefarious is defined by the dictionary as: flagrantly wicked or criminal. I would love to know how many readers experienced the same nefarious behavior I did while attending college. Each semester, we were forced to purchase outrageously overpriced textbooks. Each of them cost as much as $130.00—which is the equivalent of $342.36 in today’s currency. When the semester was over, we could sell our books back to the university, but usually only received about $8.00 (!) for each book. To make matters worse, each year the self-same textbooks were published in a “new edition.” The content was virtually identical, but all the formatting was altered, which meant the page numbers no longer corresponded. It’s insane that the perpetrators of this nefarious scheme were never prosecuted. (I really hope this situation no longer exists.)

The Opposite • When one encounters such nefarious acts, it’s easy to lose faith in humanity. Contrariwise, every so often one discovers people who—far from being nefarious—are generous, unselfish, and magnanimous. An example would be the professors at the LEMMENSINSTITUUT, who (at the height of WW2!) produced more than 3,000 pages of Gregorian Chant accompaniments. In an attempt to imitate this same spirit of generosity, we release today a professionally-scanned version of NOH Volume 5:

*  PDF Download • KYRIALE ORGAN ACCOMPANIMENTS (191 pages)
—Volume 5 • Nóva órgani harmónia ad graduále júxta editiónem vaticánam.

The following graphic shows the difference in quality between this professional scan and the version I created during the 1990s:

A few photographs of Volume 5:

“As It Was Intended” • The edition by the LEMMENSINSTITUUT does not follow the illicit elongations of Dom Mocquereau. Rather, they present the official edition as it was intended to be sung by its creators.1 The LEMMENSINSTITUUT marks each MMV (“Melismatic Mora Vocis”) with a tiny little dot. I am preparing an edition that contains little arrows to help singers notice the MMVs. My teacher found the MMVs very annoying to discern. I remember him laughing heartily, saying: “Those who followed the pure VATICANA had to place their noses next to the spine of the book to see whether the required width was actually there.” To him, such a procedure seemed absurd. Indeed, the bishop who baptized our children would often ask me: “Jeff, was it really true that singers had to place the plainsong books next to their noses to determine instances of morae vocis?” Indeed, in his 1939 textbook, Josef Gogniat confirms this method. In the following image, the spine of the book is placed close to one’s nose:

Do you see how this “Gogniat-Spine-Nose” method makes it easy to see whether there is blank space equal to (or exceeding) the width of a single note-head?

1 This may have something to do with the fact that the LEMMENSINSTITUUT is located in Belgium, which is the country where Abbat Pothier took refuge with his monastery during the French anti-clerical persecution.

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

Filed Under: Articles Tagged With: Flor Peeters, Gregorian Chant Accompaniments, Kyriale Organ Accompaniments, Lemmensinstituut, Nova Organi Harmonia, Ordinarium Missae Last Updated: March 9, 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

    “Reminder” — Month of Febr. (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
    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
    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 old Roman rite had the offering by the people and then, as offertory-prayer, what we call the “Secret.” The name “Secreta” means that it was said in a low voice, because the offertory-psalm was being sung. For the same reason it is not preceded by “Oremus.”

— Father Adrian Fortescue

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