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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

Mocquereau Rhythmic Signs

Jeff Ostrowski · November 4, 2023

PDF • Draft Booklet “Couture Chant” (255 Pages)

This is very much a “work in progress”…

Dr. Charles Weaver · October 5, 2023

PDF Dissertation • “Dom Mocquereau and Music Theory” (282 Pages)

My thesis on how Dom Mocquereau relates to other theories of musical rhythm is now available for download.

Jeff Ostrowski · May 24, 2023

Analysis • “Archaic and Quack Ideas on Chant”

“Gentlemen: Nobody is going to follow the archaic and quack ideas on Chant you are trying to propagate.” Mr. John Sandar

Jeff Ostrowski · April 27, 2023

PDF Download • “English Hymns for Three Voices” (SSA), edited by Dr. Theodore Marier—182 pages

My choir will definitely be using these settings. They’re something many have begged for!

Jeff Ostrowski · March 15, 2023

“Solesmes Ictus” • Can It Be Justified? (Examples)

“If you begin by telling a man that in a word like 𝐷𝑒𝑢𝑠 the first syllable corresponds to the weak beat, the second to the strong beat of a modern bar, the only thing accomplished will be to bewilder him thoroughly.” —Father Bewerunge

Dr. Charles Weaver · January 26, 2023

What is the Tonic Accent?

We should define our terms. What makes a syllable accented, and what makes an accent a tonic accent?

Jeff Ostrowski · January 25, 2023

PDF Download • 1909 “Modern Notation” Gradual (Extremely Rare) — 712 Pages

The truth is stranger than fiction.

Jeff Ostrowski · January 14, 2023

Video • “Counting Gregorian Chant” … according to Dom Mocquereau’s Method

The example chosen is the strenuous offertory (“Jubiláte Déo”) for the 2nd Sunday after Epiphany.

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.”

Matthew Frederes · December 12, 2022

Recent Book! • “The Politics of Plainchant”

Fascinating details from never-before-seen letters recently discovered in southern France!

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.

Matthew Frederes · November 10, 2022

Gregorian Rhythm Wars • “Frederes Feedback”

Why declare that rhythmic signs are permitted if alteration of any kind is unacceptable? It doesn’t make any sense…

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 · August 26, 2022

PDF Download • Mocquereau on Trochee Trouble

This can seem like a dry topic, but it actually often deals with practical issues faced by every choirmaster who wants to promote plainchant.

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Corpus Christi Watershed

President’s Corner

    (Part 2) • Did they simplify this hymn?
    Choirs love to sing the resplendent tune called “INNSBRUCK.” Looking through a (Roman Catholic) German hymnal printed in 1929, I discovered what appears to be a simplified version of that hymn. Their harmonization is much less complex than the version found in the Father Brébeuf Hymnal (which is suitable for singing by SATB choir). Please download their 1929 harmonization (PDF) and let me know your thoughts. As always, the Germans added an organ INTRODUCTION. For the record, I posted a different harmonization a few months ago which was downloaded more than 2,000 times.
    —Jeff Ostrowski
    PDF • “Lectionary Comparison Chart”
    Various shell corporations (in an effort to make money selling Sacred Scripture) have tinkered with the LECTIONARY texts in a way that’s shameful. It’s no wonder Catholics in the pews know so few Bible passages by heart. Without authorization, these shell corporations pervert the official texts. Consider the Responsorial Psalm for the 1st Sunday of Advent (Year A). If you download this PDF comparison chart you’ll notice each country randomly omits certain sections. Such tinkering has gone on for 60+ years—and it’s reprehensible.
    —Corpus Christi Watershed
    Monsignor Klaus Gamber Speaks!
    An interesting quotation from the eminent liturgist, Monsignor Klaus Gamber (d. 1989): “According to canon law, a person’s affiliation with a particular liturgical rite is determined by that person’s rite of baptism. Given that the liturgical reforms of Pope Paul VI created a de facto new rite, one could assert that those among the faithful who were baptized according to the traditional Roman rite have the right to continue following that rite; just as priests who were ordained according to the traditional Ordo have the right to exercise the very rite that they were ordained to celebrate.”
    —Jeff Ostrowski

Quick Thoughts

    New Bulletin Article • “12 October 2025”
    My pastor requested that I write short articles each week for our parish bulletin. Those responsible for preparing similar write-ups may find a bit of inspiration in these brief columns. The latest article (dated 12 October 2025) talks about an ‘irony’ or ‘paradox’ regarding the 1960s switch to a wider use (amplior locus) of vernacular in the liturgy.
    —Jeff Ostrowski
    “American Catholic Hymnal” (1991)
    The American Catholic Hymnal, with IMPRIMATUR granted (25 April 1991) by the Archdiocese of Chicago, is like a compendium of every horrible idea from the 1980s. Imagine being forced to stand all through Communion (even afterwards) when those self-same ‘enlightened’ liturgists moved the SEQUENCE before the Alleluia to make sure congregations wouldn’t have to stand during it. (Even worse, everything about the SEQUENCE—including its name—means it should follow the Alleluia.) And imagine endlessly repeating “Alleluia” during Holy Communion at every single Mass. It was all part of an effort to convince people that Holy Communion was historically a procession (which it wasn’t).
    —Jeff Ostrowski
    “Canonic” • Ralph Vaughan Williams
    Fifty years ago, Dr. Theodore Marier made available this clever arrangement (PDF) of “Come down, O love divine” by P. R. Dietterich. The melody was composed in 1906 by Ralph Vaughan Williams (d. 1958) and named in honor of his birthplace: DOWN AMPNEY. The arrangement isn’t a strict canon, but it does remind one of a canon since the pipe organ employs “points of imitation.” The melody and text are #709 in the Brébeuf Catholic Hymnal.
    —Jeff Ostrowski

Random Quote

“The chapter decides that henceforth neither singers nor instrumentalists may be loaned to any outside individual or organization, any more than can the chalices or copes owned by the cathedral. This prohibition applies to all those days of the church calendar for which polyphony is designated.” [From “The Life of Father Francisco Guerrero.”]

— Sevilla: Chapter Resolution (13 June 1561)

Recent Posts

  • (Part 2) • Did they simplify this hymn?
  • PDF • “Lectionary Comparison Chart”
  • “Can Choral Music Survive?” • 3 Reasons It Will
  • A Simple Way to Sing and Notate Organum Harmony
  • Monsignor Klaus Gamber Speaks!

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