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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

Jeff Ostrowski • Article Archive

A theorist, organist, and conductor, Jeff Ostrowski holds his B.M. in Music Theory from the University of Kansas (2004). He completed studies in Education and Musicology at the graduate level. Having worked as a church musician in Los Angeles for ten years, in 2024 he accepted a position as choirmaster for Saint Mary of the Immaculate Conception in Michigan, where he resides with his wife and children. —Read full biography (with photographs).

Jeff Ostrowski · August 21, 2014

How To Debunk Four Common Liturgical Myths

The priest returned to the Altar, removed the big red Missal, carried it to the pulpit, and proceeded to translate the entire Gospel into English.

Jeff Ostrowski · August 19, 2014

Kirsten Powers & The Hound of Heaven

“I’ll never forget standing outside that apartment and saying to myself, ‘It’s true. It’s completely true.’ … I had not one iota of doubt. I was filled with indescribable joy.”

Jeff Ostrowski · August 18, 2014

Breaking News! Pope Francis Refuses To Adopt “Narrative” Of Progressive Liturgists

That Tablet article could best be described as ill-informed gossip from an unqualified author with too much time on his hands…

Jeff Ostrowski · August 14, 2014

CALLING ALL PRIESTS! —Your Parishioners Are Waiting… They’re Waiting For…

“Before the Council, liturgical law was regarded as something sacred; but everyone now feels authorized to do what he likes…” — Cardinal Antonelli (24 July 1968)

Jeff Ostrowski · August 12, 2014

Some Thoughts On “Englishing” Gregorian Chant

But why bring up this subject at all, when probably 95% of Catholic priests have no familiarity with Gregorian chant? • concerning the challenges of composing Gregorian chant in English+

Jeff Ostrowski · August 11, 2014

Mass Propers In English

Roosevelt was President while paralyzed. Churchill gave speeches but couldn’t pronounce “S” correctly. Surely, then, we can implement the Mass Propers with these 11 collections! • the Graduale Romanum has been set in English by many composers; here are some collections with audio samples+

Jeff Ostrowski · August 11, 2014

Important Resources for Liturgical Reform (4 of 7)

Should Church music be fun? Yes!!!

Jeff Ostrowski · August 10, 2014

The Most Insane Thing Heard By Anyone

I used to think Horowitz’s additions to the Liszt Hungarian Rhapsody were the most amazing virtuoso display I ever heard. I was wrong.

Jeff Ostrowski · August 6, 2014

Did The Ancient Mass Really Have Three Readings?

“We are repeatedly assured that there was an Old Testament reading each Sunday morning, but that quite mysteriously these all vanished by the seventh century, and vanished leaving no memory that they had ever existed…” — Fr. John Parsons

Jeff Ostrowski · August 5, 2014

Intercession by saints? Why not go directly to God?

If I didn’t answer when he called, he’d keep calling my number over and over. If I still didn’t answer, he’d start calling my family members, including siblings who lived 900+ miles away!

Jeff Ostrowski · August 5, 2014

Five Questions No Liturgist Can Answer

“The present welter of discardable booklets, mimeographed sheets, divergent paperback hymnals, and so on … has unfortunate psychological effects.” — Dr. James Hitchcock

Jeff Ostrowski · August 3, 2014

Please Help Watershed Survive

I hate asking people for money; and some Catholic organizations drive me crazy by constantly begging with an alarmist manner.

Jeff Ostrowski · August 2, 2014

How Dare We Complain?

Can you imagine trying to feed your family in the year 1300AD?

Jeff Ostrowski · July 31, 2014

“Convent Mass” For Two Sopranos — A. E. Tozer (1911)

Published in 1911, this “Convent Mass” is for two sopranos.

Jeff Ostrowski · July 30, 2014

Difference Between “Modern” and “Dark Ages”

Does modern architecture compare favorably to the architecture of the dark ages?

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Corpus Christi Watershed

President’s Corner

    PDF Download • “Ubi Caritas” (SATB)
    I remember singing “Ubi Cáritas” by Maurice Duruflé at the conservatory. I was deeply moved by it. However, some feel Duruflé’s version isn’t suitable for small choirs since it’s written for 6 voices and the bass tessitura is quite low. That’s why I was absolutely thrilled to discover this “Ubi cáritas” (SATB) for smaller choirs by Énemond Moreau, who studied with OSCAR DEPUYDT (d. 1925), an orphan who became a towering figure of Catholic music. Depuydt’s students include: Flor Peeters (d. 1986); Monsignor Jules Van Nuffel (d. 1953); Arthur Meulemans (d. 1966); Monsignor Jules Vyverman (d. 1989); and Gustaaf Nees (d. 1965). Rehearsal videos for each individual voice await you at #19705. When I came across the astonishing English translation for “Ubi Cáritas” by Monsignor Ronald Knox—matching the Latin’s meter—I decided to add those lyrics as an option (for churches which have banned Latin). My wife and I made this recording to give you some idea how it sounds.
    —Jeff Ostrowski
    PDF • “Cantus Mariales” (192 pages)
    Andrea Leal has posted an absolutely pristine scan of CANTUS MARIALES (192 pages) which can be downloaded as a PDF file. To access this treasure, navigate to the frabjous article Andrea posted Monday. The file is being offered completely free of charge. The beginning pages of the book have something not to be missed: viz. a letter from Pope Saint Pius X to Dom Pothier, in which the pope calls Abbat Pothier “a man versed above all others in the science of liturgy, and to whom the cause of Gregorian chant is greatly indebted.”
    —Jeff Ostrowski
    Music List • (2nd Sunday of Lent)
    Readers have expressed interest in seeing the ORDER OF MUSIC I created for this coming Sunday, which is the 2nd Sunday of Lent (1 March 2026). If such a thing interests you, feel free to download it as a PDF file. This feast has magnificent propers. Its somber INTROIT is particularly striking—using a haunting tonality—but the COMMUNION with its fauxbourdon verses is also quite remarkable. I encourage all the readers to visit the feasts website, where the Propria Missae may be downloaded completely free of charge.
    —Jeff Ostrowski

Quick Thoughts

    Extreme Unction
    Those who search Google for “CCCC MS 079” will discover high resolution images of a medieval Pontificale (“Cambridge, Corpus Christi College, MS 079”). One of the pages contains this absolutely gorgeous depiction of the Sacrament of Extreme Unction.
    —Corpus Christi Watershed
    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

“The only really effective apologia for Christianity comes down to two arguments: namely, the _saints_ the Church has produced and the _art_ which has grown in her womb.”

— Josef Cardinal Ratzinger (Interview, 1985)

Recent Posts

  • PDF Download • “Ubi Caritas” (SATB)
  • PDF • “Cantus Mariales” (192 pages)
  • PDF Download • Fourteen (14) Versions of the Splendid Hymn: “Salve Mater Misericordiae”
  • Fulton J. Sheen • “24-Hour Catechism”
  • Music List • (2nd Sunday of Lent)

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