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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

Gregorian Rhythm Wars • “Disputed Questions” (16 Nov 2022)

Dr. Charles Weaver · November 16, 2022

IN my previous post, I argued against two frequent assertions of Jeff Ostrowski. He has responded thus:

It may seem insignificant, but I would like to underscore that I don’t consider these claims as mine. For instance, the letter from the Prefect for the Congregation of Sacred Rites dated 18 February 1910 speaks (explicitly) on behalf of “the mind of the Holy Father and of the Sacred Congregation of Rites.” That letter specifically says “the rhythmical form of the melodies […] is inseparable from the edition itself.”

I will try to clarify exactly what two claims I am disputing. You can read what I wrote in context, but here the two claims are, in the form of questions:

  1. Does the rhythmic interpretation described in the Vatican Edition preface remain the “official rhythm of the Catholic Church?”
  2. Are the Solesmes rhythmic signs “illicit?”

In the first question, the key word is remain. Ostrowski frequently uses phrases such as “the rhythm of the official edition is still technically mandated by the church.” If this is so, is there a current document that states this mandate, which remains in place? Is there a current member of the Roman curia who would agree with this stance? Does Ostrowski’s position reflect the mind of the current Holy Father? The latest piece of evidence he has given so far is from 1958, and even that is open to different interpretations by reasonable people. A lot has changed in the realm of sacred music since then.

As to the second question, I will also need to see some further evidence. The fact of history remains that as long as there has been a typical edition of the Roman Gradual, there has also been a typical edition of the Roman Gradual with added rhythmic signs. These have been permitted, tolerated, or allowed with varying degrees of coolness or warmth by the Roman authorities since the beginning, but the key point is that they have been allowed. There was indeed a lot of polemic directed against the signs in 1906 and for perhaps a decade after. But nowhere (after the change in design of the Solesmes signs) does a member of the hierarchy definitively say “The Solesmes signs are illicit.”

I insist on this point because it seems impossible to me to have a discussion of paleography or performance practice if we cannot agree on what the Catholic Church allows with regard to singing Gregorian chant. At least one reader has been convinced that “it seems we have all been disobedient.” I say, to the contrary, that anyone who sings Gregorian Chant liturgically with the intention of serving the most beautiful and artful liturgical practice has absolutely not been disobedient but is working for the good of the Church. Both Bruno de Labriolle and the nuns of Jouques are doing great things for the cause of sacred music. If either of these are violating a mandate of the Church by the way they sing, I will have to see better evidence of it than what has been offered so far.

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

Filed Under: Articles Tagged With: Gregorian Rhythm Wars Last Updated: December 6, 2022

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About Dr. Charles Weaver

Dr. Charles Weaver is on the faculty of the Juilliard School, and serves as director of music for St. Mary’s Church. He lives in Connecticut with his wife and four children.—(Read full biography).

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Corpus Christi Watershed

President’s Corner

    2-Voice Arrangement for Lent
    Those seeking a two-voice arrangement for LENT and PASSIONTIDE should click here and scroll down. It’s based on number 775 in the Brébeuf Hymnal, with an enchanting melody written by Kevin Allen (the legendary American composer of sacred music). That text—“Pendens In Crucis Cornibus”—is often used for the Feast of our Lady of Sorrows. That link is important because, in addition to the musical score, it provides free rehearsal videos for each individual voice: something volunteer choirs appreciate!
    —Jeff Ostrowski
    “Sanctus VIII” • Organ Accompaniment
    A few days ago, I composed this organ harmonization for SANCTUS VIII. This Mass is traditionally called Missa de ángelis or “Mass of the angels.” In French, it is Messe de Anges. You can evaluate my attempt to simultaneously accompany myself on the pipe organ (click here) while singing the melody. My parish is currently singing this setting.
    —Jeff Ostrowski
    Music List • (5th Sund. Ordinary Time)
    Readers have expressed interest in perusing the ORDER OF MUSIC I’ve prepared for this coming Sunday, 8 February 2026, which is the 5th Sunday in Ordinary Time (Year A). If such a thing interests you, feel free to download it as a PDF file. You will probably notice it isn’t as ‘complete’ or ‘spiffy’ as usual, owing to some difficulties which took place this week.
    —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

“A penalty is decreed against clerics, who, being in sacred Orders, or holding benefices, do not wear a dress befitting their Order. […] In these days, the contempt of religion has grown to such a pitch that—making but little account of their own dignity, and of the clerical honor—some even wear in public the dress of laymen…”

— ‘Council of Trent (Session 14, Chapter 6)’

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