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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

Cynthia Ostrowski • Article Archive

Cynthia Ostrowski holds a bachelor's degree in Geographic Information Science and a minor in Computer Science from Texas A&M University Corpus Christi (2005). She is currently a stay-at-home mother of two children. A former GIS analyst, Cynthia's interests include photography, french horn, and singing polyphony.—Read full biography (with photographs).

Cynthia Ostrowski · March 27, 2026

“Priest Saying Mass” • Medieval Illumination

I love the drawing of the little guy ringing the bell.

Cynthia Ostrowski · February 11, 2026

Gorgeous Image of Monks Singing!

Image from a ‘Book of Hours’ (15th century).

Cynthia Ostrowski · June 11, 2025

Available! • Free Rehearsal Videos for Agnus Dei “Mille Regretz” after Gombert (d. 1560)

Artificial intelligence will never replace authentic polyphony.

Cynthia Ostrowski · December 20, 2023

“My Favorite Christmas Song” • Played by Dr. Carbonell and Fr. Justin Ward (Live Recording)

If one must have piano in church, this is the way to do it!

Cynthia Ostrowski · September 20, 2023

What Robert Did to My Graphics

“Dear Cynthia: I landed on your website while searching for…”

Cynthia Ostrowski · September 11, 2023

Can a Lens Make a Difference?

My husband tells me this edition (by Dom Pothier’s student) is of monumental importance. I take him at his word.

Cynthia Ostrowski · June 15, 2022

“You Are Invited” • Solemn Mass sung by 95 singers!

Don’t miss the first Mass of an FSSP priest on the feast of the Most Sacred Heart of Jesus.

Cynthia Ostrowski · February 16, 2021

(photographs) • The Saint Jean de Brébeuf Hymnal

Cynthia Ostrowski · September 15, 2020

(Installment #8) “Catholic Hymnals” • Cynthia Ostrowski

According to Bishop Sheen: “Christianity, unlike any other religion in the world, begins with catastrophe and defeat.”

Follow the Discussion on Facebook

Cynthia Ostrowski · September 14, 2016

“Matri Divinæ Gratiæ” • 3-voice Motets (SAB)

Kevin Allen has released a collection every Roman Catholic choir will treasure!

Cynthia Ostrowski · August 15, 2016

Catholic Bulletin Art • Installment #71

If you’re confused about what’s happening, search google for “Dormition of Mary.”

Cynthia Ostrowski · May 23, 2016

Los Angeles: Less Than A Week Away!

A phenomenal event which involves our District Superior & Archbishop Gomez.

Cynthia Ostrowski · February 3, 2016

“Ad Orientem” Image You’ll Want To Download

This high resolution image portrays a priest offering Mass with the Holy Trinity above.

Cynthia Ostrowski · December 29, 2015

Popular Posts From 2015

In case you missed any of these!

Cynthia Ostrowski · October 19, 2015

Catholic Bulletin Art • Installment #70

The feast of Christ the King approaches!

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Corpus Christi Watershed

President’s Corner

    Simplified Accompaniment (Easter Hymn)
    Number 36 in the Brébeuf Hymnal is “At the Lamb’s high feast we sing,” an English translation for Ad Cenam Agni Próvidi (which was called “Ad Régias Agni Dapes” starting 1631). As of this morning, you can download a simplified keyboard accompaniment for it. Simple click here and scroll to the bottom. Many organists are forced to serve simultaneously as both CANTOR and ACCOMPANIST. In spite of what some claim, this can be difficult—which explains why choirmasters appreciate these simplified keyboard accompaniments. Sadly, many readers will click that link but forget to scroll to the bottom where the simplified PDF file is located.
    —Jeff Ostrowski
    PDF Download • “Quasi Modo Sunday”
    The Introit for “Quasi Modo Sunday” (12 April 2026) is particularly beautiful. The musical score can be downloaded as a PDF file, and so can the organ accompaniment. The official language of the Catholic Church is Latin (whereas Greek is our mother tongue). Vatican II said Gregorian Chant must be given “first place” under normal circumstances. As a result, some parishes will rightly sing the authentic version. On the other hand, because so many USA dioceses disobey the mandate of Vatican II, some musicians sing plainsong in the vernacular. I have attempted to simultaneously accompany myself on the pipe organ while singing the English version. Although very few take advantage of it, the complete Proprium Missae is posted at the flourishing feasts website.
    —Jeff Ostrowski
    ‘German’ Introductions for Hymns
    German organ books have an enchanting habit of including introductions for each and every hymn. For example, consider this snazzy example found in a German hymnal published in 1902. In the Saint Jean de Brébeuf Hymnal, that melody is called “Laudes Mariae” and was married to Omni Die Dic Mariae, with a popular English translation (“Daily, daily, sing to Mary”) by Father Henry Bittleston, an Oratorian priest. Notice they also added a ‘tailpiece’ or ‘playout’ or postlude at the end—a very German thing to do!
    —Jeff Ostrowski

Quick Thoughts

    PDF Download • “Anima Christi”
    I received a request for an organ accompaniment I created way back in 2007 for the “Anima Christi” Gregorian Chant. You can download this PDF file which has the score in plainsong followed by a keyboard accompaniment. Many melodies have been paired with “Anima Christi” over the centuries, but this is—perhaps—the most common one.
    —Jeff Ostrowski
    PDF • “Liturgical Law” (467 Pages)
    On Good Friday during the middle ages, the pope privately recited THE ENTIRE PSALTER. If you don’t believe me, see for yourself by reading this passage by Dom Charles Augustine Bachofen (d. 1943). His famous book—called “Liturgical Law: A Handbook Of The Roman Liturgy”—was published by the Benjamin Herder Book Company, which was the American arm (operating out of St. Louis, Missouri) of one of the world’s most significant Catholic publishers. Dom Charles Augustine Bachofen was born in Switzerland but spent his career between the Benedictine monasteries at Conception (Missouri) and Mount Angel (Oregon). His 1931 masterpiece, Liturgical Law can be downloaded as a PDF file … 467 pages!
    —Jeff Ostrowski
    “Gregorian Chant Quiz” • 24 March 2026
    How well do you know your Gregorian hymns? Do you recognize the tune inserted into the bass line on this score? For many years, we sang the entire Mass in Gregorian chant—and I mean everything. As a result, it would be difficult to find a Gregorian hymn I don’t recognize instantly. Only decades later did I realize (with sadness) that this skill cannot be ‘monetized’… This particular melody is used for a very famous Gregorian hymn, printed in the LIBER USUALIS. Do you recognize it? Send me an email with the correct words, and I promise to tell everybody I meet about your prowess!
    —Jeff Ostrowski

Random Quote

When Christ gave the bread, he did not say, “This is the symbol of my body,” but, “This is my body.” In the same way, when he gave the cup of his blood he did not say, “This is the symbol of my blood,” but, “This is my blood.”

— Theodore, Bishop of Mopsuestia, writing in the 5th Century

Recent Posts

  • PDF Download • “Anima Christi”
  • PDF Download • “Rarer Than a Blue Moon” — Side-by-Side English Translation (Pius XII Psalter)
  • Fulton J. Sheen • “24-Hour Catechism”
  • Simplified Accompaniment (Easter Hymn)
  • PDF Download • “Quasi Modo Sunday”

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