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Corpus Christi Watershed

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Views from the Choir Loft

Pothier De Caetero 1906

Jeff Ostrowski · October 22, 2025

PDF Download • “Marian Antiphon Booklet” (4 pages) + Five Rhythmic Considerations

This 4-page ‘insert’ contains the seasonal Marian antiphons and various settings of the “Kýrie” my parish will be learning.

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Jeff Ostrowski · April 2, 2024

“Response to Dr. Weaver” • 2 April 2024

Catholic musicians must avoid being viewed as “esoteric freaks” who can’t agree on anything and spend their entire lives fighting about things nobody cares about.

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Jeff Ostrowski · November 21, 2023

Jeff Ostrowski’s Performance of Plainsong Attacked as “Inartistic”

The special Vigil of Christmas “Alleluia” sung according to the official rhythm of the Catholic Church.

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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.

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Dr. Charles Weaver · November 13, 2022

Gregorian Rhythm Wars • “Charlie’s First Response to Jeff” (13 Nov 2022)

Ostrowski, wishing to avoid fussiness, may justifiably refuse this invitation. But to argue, as he has, that these signs and the prayerful and aesthetic movements they embody are “illicit” is just wildly off the mark.

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Jeff Ostrowski · November 1, 2022

“Gregorian Chant Rhythm Wars” • Ostrowski Vs. Williams

My colleague, Patrick Williams has agreed to enter into a “colloquy” with me vis-à-vis Gregorian rhythm.

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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!

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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!

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Jeff Ostrowski · May 17, 2021

“Slanty Wampus” Doesn’t Count

From one of my composition teachers…

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Jeff Ostrowski · February 23, 2021

“Old Solesmes” Method • What’s That?

I recently conducted an experiment…with surprising results.

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Jeff Ostrowski · January 28, 2020

Pothier’s 1906 “De Caetero” Letter • 3 Translations

“The Catholic tradition cannot be that of any special school, either ancient or modern…” —Abbot Pothier

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Jeff Ostrowski · February 22, 2017

“Morae Vocis” acc. to the Vatican Edition

The «Kyriale» contains very few melismatic morae.

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Jeff Ostrowski · October 7, 2015

Sloppy 1953 Schwann

The “white notes” (as Dr. Joseph Lennards called them) are quite sloppy, which really took me by surprise.

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Jeff Ostrowski · December 4, 2013

1934 “Antiphonale Monasticum” (Solesmes Abbey) • Free PDF Download!

Feel free to download all 1,296 pages!

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Corpus Christi Watershed

President’s Corner

    “Holy, Holy, Holy” transposed lower

    A simple setting based on a work by Canon Jules Vyverman.

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    —Jeff Ostrowski
    Music List • (27th Sund. Ordinary Time)

    Readers have expressed interest in examining my “music list” for this coming Sunday: 4 October 2026

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    —Jeff Ostrowski
    A Mystery! — Re: the “Liber Usualis”

    Even after all these years, nobody has been able to explain this.

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    —Jeff Ostrowski

Quick Thoughts

    Preface of Saint Joseph (added by the pope)

    You can see the “Præfatio de Sancto Joseph” inserted directly into the priest’s missal.

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    —Jeff Ostrowski
    “Predictable Rhymes?” • A Follow Up
    We received considerable correspondence regarding my article, Two Ways to Defile a Hymn. More specifically, what really raised certain people’s hackles was its follow-up article dealing with the keyboard accompaniment for the CHRIST THE KING HYMNAL. But to quote Eliza Doolittle: “Have I said anything I oughtn’t?” Please examine this PDF file and see whether you agree. Were the editors of the BRÉBEUF HYMNAL incorrect to insist upon sophisticated and clever rhymes, rather than mind-numbingly predictable rhymes?
    —Jeff Ostrowski
    ‘Ould’ But Not Good
    Dom Samuel Gregory Ould (note the spelling) was a Benedictine monk at FORT AUGUSTUS ABBEY in Scotland. As musician, organist, and composer, Dom Ould was highly regarded. Moreover, he was considered an authority on Gregorian Chant. But not everything found in an old book—or, in this case, an “Ould” book—is necessarily praiseworthy. Consider this page from Dom Ould’s hymnal. Do you see the rhymes? They offend severely by ABR (“Abuse By Reuse”) and are utterly predictable. In my recent article—Two Ways to Defile a Hymn—I addressed this topic.
    —Jeff Ostrowski

Random Quote

“The chapter secretary is authorized to write a letter beseeching a royal pardon for Caspar de Cuevas, cathedral sackbut player, who is imprisoned on a murder charge.” [From “The Life of Father Francisco Guerrero.”]

— Sevilla: Chapter Resolution (23 March 1566)

Recent Posts

  • “Holy, Holy, Holy” transposed lower
  • Music List • (27th Sund. Ordinary Time)
  • A Mystery! — Re: the “Liber Usualis”
  • A Popular “Gloria” … in Dutch?
  • From Rome • “International Week of Sacred Music”

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