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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

PDF Download • “Gloria III” Organ Accompaniment

Jeff Ostrowski · March 29, 2025

T IS SURELY one of music history’s great ironies. Dom André Mocquereau began his career utterly opposed to the mensuralist interpretation of Gregorian Chant, which was commonly used for singing from “corrupt” editions like the EDITIO MEDICAEA. But in the end, Dom Mocquereau ended up promoting a rhythmic interpretation sometimes called Neo-Mensuralism because it lengthens almost every other note. That interpretation had been explicitly condemned by Pope Pius X, and that legislation was reiterated by the Vatican for the next fifty years.1 But why did Dom Mocquereau do such a thing, after Pope Pius X fought so bravely for authentic sacred music? We can’t know for certain, but there are 3 basic theories: Three M’s. The first is Misunderstanding: Dom Mocquereau simply misinterpreted the ancient manuscripts. The second is Malice: Dom Mocquereau wanted to get even with Dom Pothier because he’d ardently wanted his 1903 edition adopted, but the pope chose Pothier’s edition instead. The third is Money: viz. the “financial imperatives” discovered in secret correspondence by Dr. Katharine Ellis of Cambridge University.

Jeff’s Attempt • So how does the “official rhythm” actually sound? Below, I demonstrate with one of the greatest versions of the Glória in excélsis—viz. GLORIA III.

*  PDF Download • ORGAN ACCOMPANIMENT
*  PDF Download • VOCALIST SCORE

Here’s the direct URL link.

We printed these congregational inserts and placed them inside the covers of the Saint Isaac Jogues Illuminated Missal, Gradual, and Lectionary.

Nothing Deficient • I have argued that we should sing the official melodies the way they were intended to be sung by the Vatican Commission on Gregorian Chant, which was responsible for creating the official edition. As far as I can tell, nobody has been able to demonstrate anything “deficient” or “lacking” or “undesirable” or “inadequate” about the official rhythm. A list of famous musicians who used the official rhythm would include: Flor Peeters; Father Xavier Mathias (who in 1913 founded the Saint Leo Institute for Sacred Music at Strasburg Cathedral); Professor Max Springer (student of Antonín Dvořák); Most Rev’d H. Laurent Janssens; Marcel Dupré; Monsignor Franz Nekes (called “The German Palestrina”); Alfons Desmet; Aloysius Desmet; Oscar De Puydt; Father Karl Weinmann; the Wiltberger brothers; Professor Amédée Gastoué; Abbat Urbanus Bomm; Charles-Marie Widor; Joseph Gogniat; Monsignor Jules Van Nuffel; Monsignor Jules Vyverman; Marinus de Jong; Gustaaf Nees; Henri Durieux; Edgard de Laet; Monsignor Johannes Overath; Monsignor Francis P. Schmitt; Dr. Karl Gustav Fellerer; and Dom Lucien David.

Seeking Feedback • I’d love to hear your thoughts on this matter. Surely I’m not the only one interested in the rhythm of plainsong! Feel free to tell me where I’ve gone astray—but if you do that please make sure to include specific examples.

1 I must admit that I’ve never understood why some priests and musicians—who are responsible for Mass according to the liturgical books of 1962—are so very careful about every last rubric pertaining to the ceremonies but totally ignore the musical legislation.

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

Filed Under: Articles, PDF Download Tagged With: Abbat Joseph Pothier, Andre Mocquereau Theory of Rhythm, Dom Lucien David Saint Wandrille Abbey, Gregorian Organ Accompaniments, Gregorian Rhythm Wars, Gregorian Semiology, Sémiologie grégorienne Last Updated: May 5, 2025

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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

    A Nice Hymn In Spanish
    In my humble opinion, this is a really beautiful hymn in Spanish. If I practice diligently, I’ll be able to pronounce all the words properly. If you’re someone who’s interested in obtaining a melody only version (suitable for your congregational ORDER OF WORSHIP) you can steal that from this.
    —Jeff Ostrowski
    “Music List” • 21st in Ordinary Time (Year C)
    Our choir returns on Sunday, 24 August 2025. Some have expressed interest in perusing the ORDER OF MUSIC I’ve prepared for it, which is the 21st Sunday in Ordinary Time (Year C). If such a thing interests you, feel free to download it as a PDF file. As always, the Responsorial Psalm, Gospel Acclamation, and Mass Propers for this Sunday are conveniently stored at the spectacular feasts website. When it comes to the feast of the Assumption (15 August 2025), I have uploaded the music list for that Mass—but not the “bi-lingual” Mass in the evening (Spanish, Latin, and English) which has completely different music.
    —Jeff Ostrowski
    “Entrance Chant” • 21st Sunday Ordin. Time
    You can download the ENTRANCE ANTIPHON in English for the 21st Sunday in Ordinary Time (Year C) which is coming up on 24 August 2025. Corresponding to the vocalist score is this free organ accompaniment. It’s set in a melancholy mode, but if you heard my choir’s female voices singing it your soul would be uplifted beyond belief. If you’re someone who enjoys rehearsal videos, this morning I tried to sing it while simultaneously accompanying my voice on the pipe organ.
    —Jeff Ostrowski

Quick Thoughts

    Solemn “Salve Regina” (Chant)
    How many “S” words can you think of using alliteration? How about Schwann Solemn Salve Score? You can download the SOLEMN SALVE REGINA in Gregorian Chant. The notation follows the official rhythm (EDITIO VATICANA). Canon Jules Van Nuffel, choirmaster of the Cathedral of Saint Rumbold, composed this accompaniment for it (although some feel it isn’t his best work).
    —Corpus Christi Watershed
    Pope Pius XII Hymnal?
    Have you ever heard of the Pope Pius XII Hymnal? It’s a real book, published in the United States in 1959. Here’s a sample page so you can verify with your own eyes it existed.
    —Corpus Christi Watershed
    “Hybrid” Chant Notation?
    Over the years, many have tried to ‘simplify’ plainsong notation. The O’Fallon Propers attempted to simplify the notation—but ended up making matters worse. Dr. Karl Weinmann tried to do the same in the time of Pope Saint Pius X by replacing each porrectus. You can examine a specimen from his edition and see whether you agree he complicated matters. In particular, look at what he did with éxsules fílii Hévae.
    —Corpus Christi Watershed

Random Quote

And since it is becoming that holy things be administered in a holy manner, and of all things this sacrifice is the most holy, the Catholic Church, to the end that it might be worthily and reverently offered and received, instituted many centuries ago the holy canon, which is so free from error that it contains nothing that does not in the highest degree savor of a certain holiness and piety and raise up to God the minds of those who offer.

— Council of Trent (1562)

Recent Posts

  • Solemn “Salve Regina” (Chant)
  • A Nice Hymn In Spanish
  • Fulton J. Sheen • “Why Four Bishops Voted Against the Liturgical Constitution”
  • New Marian Organ Work • a Triptych on “Lumen Ad Revelatiónem”
  • “Music List” • 21st in Ordinary Time (Year C)

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