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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 · September 15, 2014

A Catholic Nun Challenged Reagan As Vice-President … For The Communist Party!

Are we surprised that authentic Church music died in the 1970s?

Jeff Ostrowski · September 15, 2014

Can Church Musicians Learn From An Online Role-Playing Game?

Let’s help Catholics appreciate the richness of polyphonic music, which can be quite powerful.

Jeff Ostrowski · September 14, 2014

Update * Atonement Parish — San Antonio, Texas

A consistently serious parish whose Pastor never deviates from Catholic doctrine.

Jeff Ostrowski · September 10, 2014

Vatican Breaks Its Silence On Kneeling For Communion In The USA

“When this Congregation gave ‘recognitio’ to your Bishops’ Conference, this was done on the condition that kneeling communicants are not to be denied Holy Communion.” — Vatican Statement

Jeff Ostrowski · September 9, 2014

That Inscrutable Creature On The Internet

I’ve come to realize that truth & beauty should be loved for their own sake. Trying to “possess” them is silly.

Jeff Ostrowski · September 8, 2014

Have We Lost The Church Music Battle?

The traditional music still triumphs in one important area: parishes run by “no-nonsense” priests.

Jeff Ostrowski · September 2, 2014

PDF Download: Mediator Dei Hymnal (1955)

This book’s editor had the reputation of being a “walking encyclopedia” of American hymnology…

Jeff Ostrowski · September 1, 2014

Barack Obama & Catholic Sacred Music

I wish somebody had explained this to me in 2005, when I began working for the Ordinary Form.

Jeff Ostrowski · August 28, 2014

Why I No Longer Compose

When I observe our beautiful children, I realize that God is the True Artist.

Jeff Ostrowski · August 28, 2014

Choirs & Singers With Spread Vowels — Best Example Ever!

When teaching your choir to hear the difference between “spread” vowels & proper choral vowels, use this example.

Jeff Ostrowski · August 27, 2014

Dan Schutte’s “Missa My Little Pony” (2nd Part)

My original article was shared 4,000 times and generated a surprising amount of hate mail.

Jeff Ostrowski · August 25, 2014

NBC “Meet The Press” & Catholic Church Music

At the program’s conclusion, I felt dumber than when I’d started watching.

Jeff Ostrowski · August 25, 2014

Pope John Paul II Wearing The Cappa Magna (As Cardinal Wojtyla)

The most marvelous uniform I’ve seen was the one worn by Prince Charles when he married Diana.

Jeff Ostrowski · August 24, 2014

Photo: Church Music Association of America (1964)

This historic photograph was taken at the organizational meeting for the CMAA the same year “Inter Oecumenici” was issued by the Vatican.

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.

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Corpus Christi Watershed

President’s Corner

    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
    Like! Like! Like!
    You won’t believe who recently gave us a “like” on the Corpus Christi Watershed FACEBOOK PAGE. Click here (PDF) to see who it was. We were not only sincerely honored, we were utterly flabbergasted. This was truly a resounding endorsement and unmistakable stamp of approval.
    —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

“These liturgists protest that the choir must be encouraged, but in the same breath we are told its purpose is to lead the congregation in the singing of hymns and other unison music. These directions from non-musicians who have never created a musical sound—let alone direct a choir—are the cause of consternation among practicing musicians, both instrumentalists and singers.”

— Monsignor Richard J. Schuler (30 November 1967)

Recent Posts

  • 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)
  • PDF Download • “Funerals in the Ordinary Form”

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