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Corpus Christi Watershed

We’re a 501(c)3 public charity established in 2006. We have no endowment, no major donors, no savings, and run no advertisements. We exist solely by the generosity of small donors.

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Views from the Choir Loft

Abbat Joseph Pothier

Jeff Ostrowski · July 23, 2023

What Charles Weaver Did (!)

Dr. Weaver kindly made me aware of something stupendous. Created by Abbat Pothier’s assistant and approved by his successor (about ten years after his death), it’s a KYRIALE, GRADUALE, and VESPERALE: 2,000 pages long! It’s in Gregorian notation on five staves and marks each mora vocis. Here’s a photograph of the “Puer Natus” INTROIT taken with my […]

Jeff Ostrowski · July 19, 2023

Gregorian Rhythm Wars • “Jeff’s Fourth Response to Patrick” (19 July 2023)

Twenty years ago, I had the opportunity to conduct a week-long interview with Dom Cardine’s former boss.

Jeff Ostrowski · January 5, 2023

“Solesmes Method” • Where was it developed?

Father Ralph March wrote: “If any single man could deserve the title father of the renewed chant it would be Dom Joseph Pothier.”

Jeff Ostrowski · December 11, 2022

“Introit” (3rd Sunday of Advent) • Sung According the Church’s Official Rhythm

My humble attempt at singing the Introit for the 3rd Sunday of Advent in accordance with the official rhythm.

Jeff Ostrowski · December 6, 2022

Gregorian Rhythm Wars • “Jeff’s Second Response to Patrick” (6 Dec 2022)

You look upon these thousands of manuscripts in much the same way that I view the plainsong editions of Guillaume-Gabriel Nivers.

Dr. Charles Weaver · November 26, 2022

Gregorian Rhythm Wars • “On the Nuance Theory of Plainchant”

A brief historical survey of free rhythm in plainchant, as practiced from the modern monastic foundation of Solesmes (1833) to the present.

Jeff Ostrowski · August 29, 2022

“Did The Pope Really Say That?” • Re: Solesmes Rhythm

My response to the recent article by Professor Charles Weaver.

Dr. Charles Weaver · July 23, 2022

Pothier Teaches Us to Sing an Antiphon

A look at Dom Pothier’s performance instructions for a communion antiphon reveals a great deal of complexity in this pre-Mocquereau interpretive approach.

Jeff Ostrowski · July 22, 2022

PDF Download • Professionally-Scanned “Graduale Romanum” (Schwann, 1908) • 1,129 pages!

This is the “pure” Vatican Edition—technically the only version of the rhythm allowed by Church documents!

Corpus Christi Watershed · July 6, 2022

“Chant Rhythm Wars” • Dueling Lectures!

Ostrowski Vs. Weaver: Solesmes Rhythm, Gregorian Semiology, Dom Mocquereau, Dom Pothier, Mensuralism, and more!

Follow the Discussion on Facebook

Jeff Ostrowski · June 28, 2022

Photograph • Dom André Mocquereau (d. 1930)

Dom Mocquereau, prior to becoming a monk, was a soldier in the Franco-Prussian War.

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Corpus Christi Watershed

President’s Corner

    Bugnini’s Statement (6 November 1966)
    With each passing day, more is revealed about how the enemies of the liturgy accomplished their goals. For instance, Hannibal Bugnini deeply resented the way Vatican II said Gregorian Chant “must be given first place in liturgical services.” On 6 November 1966, his cadre wrote a letter attempting to justify the elimination of Gregorian Chant with this brazen statement: “What really gives a Mass its tone is not so much the songs as it is the prayers and readings.” Bugnini’s cadre then attacked the very heart of Gregorian Chant (viz. the Proprium Missae), bemoaning how the Proprium Missae “is completely new each Sunday and feast day.” There is much more to be said about this topic. Stay tuned.
    —Jeff Ostrowski
    Luis Martínez Must Go!
    Sevilla Cathedral (entry dated 13 December 1564): The chapter orders Luis Martínez, a cathedral chaplain, to stay away from the choirbook-stand when the rest of the singers gather around it to sing polyphony—the reason being that “he throws the others out of tune.” [Excerpt from “The Life of Father Francisco Guerrero.”]
    —Jeff Ostrowski
    Urgent! • We Desperately Need Funds!
    A few days ago, the president of Corpus Christi Watershed posted this urgent appeal for funds. Please help us make sure we’re never forced to place our content behind a paywall. We feel it’s crucial that 100% of our content remains free to everyone. We’re a tiny 501(c)3 public charity, entirely dependent upon the generosity of small donors. We have no endowment and no major donors. We run no advertisements and have no savings. We beg you to consider donating $4.00 per month. Thank you!
    —Jeff Ostrowski

Quick Thoughts

    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
    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

Random Quote

Nothing should be allowed that is unworthy of divine worship, nothing that is obviously profane or unfit to express the inner, sacred power of prayer. Nothing odd or unusual is allowable, since such things, far from fostering devotion in the praying community, rather shock and upset it—and impede the proper and rightful cultivation of a devotion faithful to tradition.

— Pope Paul VI • 10/13/1966

Recent Posts

  • Now Available! • “Hymns of Cardinal Newman: Kevin Allen’s Legendary Choral Settings”
  • Bugnini’s Statement (6 November 1966)
  • (Rehearsal Clips) • Sacred Music Symposium 2025
  • Hidden Gem: Ascendit Deus (Dalitz)
  • PDF Download • Soprano Descant — “Hail, Holy Queen Enthroned Above”

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