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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 · June 7, 2022

7 June 2022 • FEEDBACK

From Chelan, Washington: “CCWatershed is a God-sent resource that I can’t function without! Such great work by the team to bring beauty back to our liturgy!” From Gainesville, Florida: “I am so appreciative of the work, of my brothers and sisters in music!” From Troutman, North Carolina: “Keep up the excellent work in service of the Liturgy!”

Jeff Ostrowski · June 7, 2022

“An Unknown Parishioner Approached Me…”

Can modern composers write hymns? Are they stirring?

Jeff Ostrowski · June 5, 2022

PDF Download • (Organ Accompaniment)

I created this organ accompaniment booklet for organists who will accompany Vespers on Pentecost Sunday. Feel free to download it; it might give you some ideas or inspiration. Be warned: It looks pretty sloppy. (The organist is the only one who sees it.)

Jeff Ostrowski · June 3, 2022

Revelation • “Re: The Official Rhythm”

A very intelligent singer admitted that only yesterday did he finally come to understand what a “melismatic mora vocis” is. Only yesterday did he come to understand the “white notes” (blank spaces). You can see the Introit for Pentecost Sunday only has two instances of MMV (“melismatic mora vocis”).

Jeff Ostrowski · June 3, 2022

3 June 2022 • FEEDBACK

From Saint Petersburg, Florida: “Thank you so much for all of your tireless and selfless work in building up the Kingdom of God and Helping us on the path toward heaven! Your work for many years now has borne much fruit in my life and in the lives of whom I work with. May the […]

Jeff Ostrowski · June 1, 2022

1 June 2022 • FEEDBACK

From Pennsylvania: “Thank you for all of the music on your website! It has been of immense help to me as a choir director.” From Minnesota: “Thank you for your awesome ministry! I started going to a Latin mass parish about 10 years ago, and this website has been indispensable to me. I could not […]

Jeff Ostrowski · June 1, 2022

The Official Chant Rhythm • “How Does It Sound?”

“The Vatican Edition … contains absolutely all that is needed for the exact rendition of the liturgical chant.” —Sacred Congregation of Rites (1911)

Jeff Ostrowski · May 31, 2022

Kevin Allen • “What is Sacred Music?”

J. F. M. kindly made us aware of the following video clip, which features Kevin Allen.

Jeff Ostrowski · May 28, 2022

28 May 2022 • “Pristine” Vatican Rhythm

My choirs have been singing from the “pure” Editio Vaticana rhythm, which is (technically) the official rhythm of the Catholic Church. I haven’t quite decided how I want the scores to look yet, but this one I’ve produced for tomorrow, Dominica Post Ascensionem (“Sunday after the Ascension”).

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.

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Corpus Christi Watershed

President’s Corner

    A Nice Hymn In Spanish
    In my humble opinion, this is a really beautiful hymn in Spanish. If I practice diligently, I’ll be able to pronounce all the words properly. If you’re someone who’s interested in obtaining a melody only version (suitable for your congregational ORDER OF WORSHIP) you can steal that from this.
    —Jeff Ostrowski
    “Music List” • 21st in Ordinary Time (Year C)
    Our choir returns on Sunday, 24 August 2025. Some have expressed interest in perusing the ORDER OF MUSIC I’ve prepared for it, which is the 21st Sunday in Ordinary Time (Year C). If such a thing interests you, feel free to download it as a PDF file. As always, the Responsorial Psalm, Gospel Acclamation, and Mass Propers for this Sunday are conveniently stored at the spectacular feasts website. When it comes to the feast of the Assumption (15 August 2025), I have uploaded the music list for that Mass—but not the “bi-lingual” Mass in the evening (Spanish, Latin, and English) which has completely different music.
    —Jeff Ostrowski
    “Entrance Chant” • 21st Sunday Ordin. Time
    You can download the ENTRANCE ANTIPHON in English for the 21st Sunday in Ordinary Time (Year C) which is coming up on 24 August 2025. Corresponding to the vocalist score is this free organ accompaniment. It’s set in a melancholy mode, but if you heard my choir’s female voices singing it your soul would be uplifted beyond belief. If you’re someone who enjoys rehearsal videos, this morning I tried to sing it while simultaneously accompanying my voice on the pipe organ.
    —Jeff Ostrowski

Quick Thoughts

    Solemn “Salve Regina” (Chant)
    How many “S” words can you think of using alliteration? How about Schwann Solemn Salve Score? You can download the SOLEMN SALVE REGINA in Gregorian Chant. The notation follows the official rhythm (EDITIO VATICANA). Canon Jules Van Nuffel, choirmaster of the Cathedral of Saint Rumbold, composed this accompaniment for it (although some feel it isn’t his best work).
    —Corpus Christi Watershed
    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

Random Quote

“So, as in delirium a man talks in a long-forgotten tongue, now—when her heart is rent—the Catholic Church drops twenty centuries without an effort, and speaks as she spoke underground in Rome, and in Paul’s hired house, and in Crete and Alexandria and Jerusalem.”

— A non-Catholic describing the “Hagios O Theos” of Good Friday in 1906

Recent Posts

  • Jeffrey Tucker: “USCCB Deserves Scorn for Maintaining Strict Copyright Over Liturgical Texts.”
  • Solemn “Salve Regina” (Chant)
  • A Nice Hymn In Spanish
  • Fulton J. Sheen • “Why Four Bishops Voted Against the Liturgical Constitution”
  • New Marian Organ Work • a Triptych on “Lumen Ad Revelatiónem”

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