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Corpus Christi Watershed

“A much greater source of anxiety to Us is the style of action of those who maintain that liturgical worship should shed its sacred character, who foolishly say we should substitute for sacred items & furnishings ordinary common things in daily use.” —Pope Saint Paul VI (14 Oct 1968)

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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 · May 27, 2022

27 May 2022 • FEEDBACK

A reader from Wisconsin: “I will pray for you and CC Watershed. This site has been one of the most valuable resources I have in helping me run a choir for an ICKSP apostolate.” A reader from New York: “May God bless you for your wonderful work! This site has been invaluable to me.” A […]

Jeff Ostrowski · May 26, 2022

PDF Download • “Spanish TLM Missal” (2,288 pages)

A french version (1,798 pages) is also available for free PDF download.

Jeff Ostrowski · May 25, 2022

25 May 2022 • FEEDBACK

From a reader: “I can’t tell you how much I appreciate all the time and resources poured into CCWatershed. It’s transformed how I approach music in the parish, and has especially helped me deepen appreciation for the ability of volunteer musicians.”

Jeff Ostrowski · May 25, 2022

CCWatershed Is In Financial Trouble!

“In truth, I’ve done a decidedly poor job soliciting money.” —Jeff Ostrowski

Jeff Ostrowski · May 24, 2022

23 May 2022 • FEEDBACK

From a reader: “I wasn’t looking for it. But, I stumbled across your hand-dandy arrangement of Pachelbel’s Canon. Jeff, this is the greatest thing since sliced bread! I had to play a wedding on Saturday. The bride requested the Canon. There were 11 bridesmaids! The organ loft is a football field away from the communion […]

Jeff Ostrowski · May 21, 2022

PDF Download • “A Canon Choirs Love!”

You will notice Father Guerrero takes the chant melody (“Beata Mater”) and creates a perfect canon between Soprano and Alto.

Jeff Ostrowski · May 19, 2022

19 May 2022 • “Trochee Trouble”

I’m still trying to decide how to visually present the “pure” Editio Vaticana scores, using what is (technically) the official rhythm of the Church. You can download my latest attempt, for this coming Sunday. Notice the “trochee trouble” as well as the old issue of neumes before the quilisma.

Jeff Ostrowski · May 19, 2022

“Gregorian Chant Not In Danger Pope Tells French”

Actual headline from 9 April 1964.

Jeff Ostrowski · May 18, 2022

PDF Download • “O Salutaris” (Modern Setting)

If there’s a more beautiful setting of this text, I don’t know what it could be.

Jeff Ostrowski · May 17, 2022

PDF Download • 2022 “Vespers Booklet” (99 Pages)

If you spot typos, please let us know!

Jeff Ostrowski · May 16, 2022

“Playing the Pipe Organ” • By Richard Nixon

Does the music of Franz Liszt belong to Adolf Hitler?

Jeff Ostrowski · May 16, 2022

16 May 2022 • Harmonized Chant?

This year’s upcoming Sacred Music Symposium will demonstrate several ways to sing the CREDO at Mass. This is because—for many parishes—to sing a full-length polyphonic CREDO by Victoria or Palestrina is out of the question. Therefore, we show options that are halfway between plainsong and polyphony. You can hear my choir rehearsing a section that […]

Jeff Ostrowski · May 14, 2022

Worst Chanting I’ve Ever Heard

The Supreme Court has been in the news lately.

Jeff Ostrowski · May 14, 2022

14 May 2022 • “Pure” Vatican Edition

As readers know, my choir has been singing from the “pure” Editio Vaticana. That is to say, the official rhythm which—technically—is the only rhythm allowed by the Church. I haven’t figured out how I want the scores to look, so in the meantime we’ve been using temporary scores that look like this. Stay tuned!

Jeff Ostrowski · May 14, 2022

14 May 2022 • Gorgeous Book

If there is a more beautiful book than Abbat Pothier’s 1888 Processionale Monasticum, I don’t know what it might be. This gorgeous tome was today added to the Saint John Lalande Online Library. I wish I owned a physical copy.

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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

“Parish Priests have to think first of the simple faithful: people now used to the Roman Missal at Mass. They don’t want change.”

— Cardinal Spellman (one of the Vatican II fathers)

Recent Posts

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  • 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

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