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Corpus Christi Watershed

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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 · March 4, 2024

“The Christian Can Only Be an Optimist!”

From a classic interview with Father Robert Skeris on EWTN.

Jeff Ostrowski · March 2, 2024

“The Most Captivating Chorale” • (J. S. Bach)

“The mocking reed, and cruell ſpear, Their hate, his love diſplay.”

Jeff Ostrowski · March 1, 2024

“Simplified” Keyboard Accompaniment

Are you an inexperienced organist? Were you formally a pianist? I invite you to download this simplified organ accompaniment for hymn #124 in the Saint Jean de Brébeuf Hymnal. I’m toying with the idea of creating a whole bunch of these, to benefit amateur organists. What is your opinion of such a project? Let me […]

Jeff Ostrowski · March 1, 2024

“Stabat Mater” • Jeff Attempts to Sing All the Voices

A gorgeous, luscious, contemporary setting by Gustaaf Nees (d. 1965).

Jeff Ostrowski · February 29, 2024

Relics of Father Brébeuf Touring the United States!

“They are the relics of the love of God which alone triumphs in the death of martyrs,” exclaimed Father Ragueneau.

Jeff Ostrowski · February 28, 2024

“Palestrina500” • Sacred Heart Parish (Michigan)

Jean Calvin (d. 1564) famously detested sacred music. Ironically, Jonathan Bading—a convert from Calvinism!—has become one of the Church’s “leading lights” when it comes to authentic church music.

Jeff Ostrowski · February 28, 2024

PDF Download • “Two-Voice Polyphony For Lent”

Found in a special choral collection by Maria von Trapp.

Jeff Ostrowski · February 16, 2024

PDF Download • “For the Season of Lent” (SATB)

It even sounds great with four (4) singers: Soprano, Alto, Tenor, and Bass!

Jeff Ostrowski · February 15, 2024

Offered in a Spirit of Dialogue

Pope Francis said famously: “To dialogue entails a cordial reception, not a prior condemnation.” The following brief utterances of mine are offered in that spirit. Pope Saint Pius X called the sacred liturgy “the primary and indispensable source of the true Christian spirit.” If the reformers had told the fathers of Vatican II they desired […]

Jeff Ostrowski · February 15, 2024

Josquin Des Prez Was A Vandal • (Not Kidding)

Also included: the day my life changed forever.

Jeff Ostrowski · February 14, 2024

Polyphony For Three Voices!

Writing excellent music is easier in four voices than three. We often sing from MATRI DIVINAE GRATIAE, a 3-voice collection by Kevin Allen for Soprano, Alto, and Bass. Someone made a recording of my volunteer choir singing “Si Ambulávero” (from that collection). This “raw recording” starts toward the end of the psalm tone then launches […]

Jeff Ostrowski · February 13, 2024

“Ite, Missa Est” • What Does That Actually Mean?

Bishop Ambo’s assertion that Mass was attended—for centuries—by a single woman (and nobody else) is bizarre.

Jeff Ostrowski · February 10, 2024

PDF Download • “Chant Chart”

A thoughtful priest from another country wrote me a magnificent message praising a PDF comparison chart I recently posted. It deals with “staffless” CARMEN GREGORIANUM (Gregorian Chant). Download it for free by scrolling to the bottom of this article. Of course, I hope you will read the article instead of just scrolling past it.

Jeff Ostrowski · February 10, 2024

Must We “Love” All Gregorian Chant?

Where “Parce Dómine” (the famous song for Lent) came from.

Jeff Ostrowski · February 7, 2024

“Somber Song!” • Sexagesima Sunday

As we approach the holy season of Lent, the prayers and readings become more lengthy. When we arrive at Easter, the prayers and readings will become extremely brief. As we get closer to Lent, some of the music becomes quite somber. I can’t think of a more somber piece than the INTROIT for Sexagesima Sunday. […]

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Corpus Christi Watershed

President’s Corner

    Simplest “Agnus Dei” Ever Published
    Our choir is on break during the month of July. I needed a relatively simple “Agnus Dei,” so I composed this setting for organ & voice in honor of Saint René Goupil. It has been called the simplest setting ever composed. I love CARMEN GREGORIANUM (“Gregorian Chant”), especially the ALLELUIAS, INTROITS, and COMMUNION ANTIPHONS. That being said, some have pointed out that certain sections of the Kyriale aren’t as strong as the Graduale or Vesperale. There’s a reason for this—but it would be too complicated to explain at this moment.
    —Jeff Ostrowski
    14th Sunday in Ordinary Time (Year C)
    Our choir is on break during the month of July. However, on the feasts website, the chants have been posted for the 14th Sunday in Ordinary Time (Year C), which is this coming Sunday: 6 July 2025.
    —Jeff Ostrowski
    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

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

“At the hour for the Divine Office, | as soon as the signal is heard, | let them abandon whatever they may have in hand | and hasten with the greatest speed, | yet with seriousness, so that there is no excuse for levity. | Let nothing be preferred to the sacred liturgy.”

— Rule of St. Benedict (Chapter 43)

Recent Posts

  • August 2025 • “Colorado Sacred Music Conference”
  • New “Latin/English Missal” for the Novus Ordo
  • Simplest “Agnus Dei” Ever Published
  • Bishop François Charrière Vs. Hannibal Bugnini
  • 14th Sunday in Ordinary Time (Year C)

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