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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

Featured

Jeff Ostrowski · March 5, 2023

Pipe Organ During Lent?

To withdraw the pipe organ no longer has the impact it once did.

Corpus Christi Watershed · March 2, 2023

“Fifty-Seven (57) Sample Pages” • Brébeuf Hymnal

The last thing church musicians need is another collection of goofy, syrupy, mawkish hymns.

Jeff Ostrowski · March 1, 2023

Greatest Choral Piece Ever Written? • It Might Be Marenzio’s “Salve Regina”

By March 1596 Marenzio had arrived in Poland. In October of that year, he directed a Mass he’d written in the form of an “echo.”

Jeff Ostrowski · February 25, 2023

Eleven (11) Rare Lenten Hymns You’ve Not Sung!

“Our hymnbooks know nothing of such a treasure as this, and give us pages of poor sentiment in doggerel lines by some tenth-rate modern versifier.” —Father Fortescue

Jeff Ostrowski · February 23, 2023

Marier’s Majestic Music • In Singapore?

“One person I spoke to frequently—although I never met him…” (?)

Jeff Ostrowski · February 20, 2023

PDF Download • “Quinquagesima Sunday” Organ Accompaniment Booklet (25 pages)

The word “Alleluia” changes to: “Praise be to Thee, O Lord, King of eternal glory.”

Jeff Ostrowski · February 18, 2023

Cardinal Roche on discouraging or limiting “ad orientem” celebration: “It is an absurdity”

Ponder this statement by the prefect for the Dicastery for Divine Worship and the Discipline of the Sacraments (a.k.a. “CDW”).

Jeff Ostrowski · February 15, 2023

PDF • 2014 Dissertation: “Plainchant Influence on the Liturgical Music of Dr. Marier” (324 pages)

This treatise (324 pages) is a “must read” for anyone who cares about liturgical music in the Catholic Church.

Jeff Ostrowski · February 11, 2023

Hymn for the Season of Septuagesima? • Yes!

Where did “Ordinary Time” come from?

Jeff Ostrowski · February 8, 2023

PDF Download • Symposium Kyrie Revealed

People often complain: “Catholic priests won’t pay a living wage for choir directors, yet gladly pay millions to purchase a pipe organ.”

Jeff Ostrowski · February 4, 2023

Church Music Shouldn’t Be “Headache-Inducing”

Authentic sacred music should attract people. It should not drive them away.

Corpus Christi Watershed · February 1, 2023

Filling Up Fast! • Sacred Music Symposium

“The Sacred Music Symposium was a vehicle of grace that changed my life.” —2019 Participant

Jeff Ostrowski · January 31, 2023

PDF Download • Belgian Book of Gregorian Accompaniments (Official Edition)

We paid to have this extremely rare book scanned professionally.

Jeff Ostrowski · January 28, 2023

Crucial Tip For Choir Directors

Don’t listen to excuses!

Jeff Ostrowski · January 25, 2023

PDF Download • 1909 “Modern Notation” Gradual (Extremely Rare) — 712 Pages

The truth is stranger than fiction.

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Corpus Christi Watershed

President’s Corner

    PDF Download • Communion for Sunday
    The COMMUNION ANTIPHON with fauxbourdon psalm verses for this coming Sunday (3 May 2026) is elegant and poignant. It’s such a shame it only comes every three years. This piece—along with all the musical scores for this coming Sunday, which is the 5th Sunday of Easter (Year A)—can be downloaded free of charge from the flourishing feasts website. By the way, how is it already 2026?
    —Jeff Ostrowski
    Season’s End Repertoire
    Looking at the REPERTOIRE SHEET until the end of the choral season, I see that I’ve fallen behind schedule. (The last three months have been extraordinarily busy.) As you know, I have been providing organ harmonies for all the ENTRANCE CHANTS—as well as rehearsal videos—and you can see I’m behind where I planned to be. Now I must make up lost ground. However, the choir picks up the ENTRANCE CHANT with ease, so I’m sure it will all work out. My ‘unofficial’ harmonizations are being posted each week at the flourishing feasts website.
    —Jeff Ostrowski
    PDF Download • “Funeral Procession”
    From a mediæval Book of Hours, I was sent this glorious depiction of a Roman Catholic funeral procession by Simon Bening (d. 1561). The image resolution is extremely high. I’m not sure I know of a more beautiful illustration of a mediæval church. And I love how the servers are wearing red and pink cassocks!
    —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

Impelled by the weightiest of reasons, we are fully determined to restore Latin to its position of honor, and to do all We can to promote its study and use. The employment of Latin has recently been contested in many quarters, and many are asking what the mind of the Apostolic See is in this matter. We have therefore decided to issue the timely directives contained in this document, so as to ensure that the ancient and uninterrupted use of Latin be maintained and, where necessary, restored.”

— Pope John XXIII (22 February 1962)

Recent Posts

  • PDF Download • Communion for Sunday
  • “Translating the Bible” • Msgr. Ronald Knox (1953)
  • Season’s End Repertoire
  • PDF Download • “Funeral Procession”
  • Re: The “Correct” Way To Sing Gregorian Chant

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