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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

Vespers

Jeff Ostrowski · May 13, 2024

Organ Accomp. • “Ascension Hymn at Vespers”

The soul-stirring hymn used on ASCENSION THURSDAY at Vespers—and also used on the Sunday which follows the Ascension—was called in the 7th century: “Jesu Nostra Redemptio.” After 1631AD, the title of that hymn was changed to “Salutis Humanae Sator.” The melody assigned by the Vatican Commission on Gregorian Chant is rather mournful (and very difficult […]

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 · January 15, 2023

PDF Download • “Organ Accompaniment Booklet” (25 pages) — Vespers, 2nd Sunday after Epiphany

The internet is putting good people in touch with one another.

Jeff Ostrowski · December 17, 2022

Available Now! • 4th Sunday of Advent

Those who so desire may now download this organ accompaniment booklet (25 pages) for the 4th Sunday of Advent, including the “O ANTIPHON” for 18 December 2022.

Jeff Ostrowski · December 7, 2022

PDF Download • “Organ Accompaniment Booklet” • Vespers (3rd Sunday of Advent) — 23 pages

Were Pothier and Mocquereau homeless? The answer might surprise you.

Jeff Ostrowski · July 12, 2022

PDF Download • “Sunday Vespers” (22 pages)

In spite of its imperfections, creating this (draft) booklet required much more effort than I had anticipated.

Jeff Ostrowski · June 12, 2022

PDF Download • Trinity Sunday (22 pages)

Feel free to download this Organ Accompaniment Booklet for Trinity Sunday (Second Vespers). Notice how the modes progress by number. Psalm 1 is mode 1; Psalm 2 is mode 2; Psalm 3 is mode 3; Psalm 4 is mode 4; Psalm 5 is mode 5. I am told by an expert that other feasts (such […]

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 · May 17, 2022

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

If you spot typos, please let us know!

Jeff Ostrowski · January 19, 2022

100% Scrolling Score • “What Exactly Is Vespers?”

For those who have never experienced Vespers, an answer like that comes across as “gobbledygook.”

Jeff Ostrowski · December 12, 2021

PDF Download • Vespers Organ Accompaniment — “Our Lady of Guadalupe” (12 December)

Vatican II said: “Pastors must see to it that Vespers is celebrated in parishes on Sundays and the more solemn feasts” (SC §100).

Dr. Charles Weaver · October 24, 2021

PDF Download • Commemorating Dr. Fayrfax

A massively underrated composer died 500 years ago today.

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Jeff Ostrowski · August 14, 2021

PDF Download • “Vespers Booklet” (15 August, Assumption) — 20 pages

Also included, an organ accompaniment (23 pages) for this booklet.

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Jeff Ostrowski · August 2, 2021

“What is Vespers?” • Live Rec. + 100% Scrolling Score

After more than a year of Vespers having been forbidden (due to Covid-19) we’re back!

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Jeff Ostrowski · July 31, 2021

(29 Pages) • Free Organ Accompaniment Book — Draft copy

The following is what I will use to accompany the congregation tomorrow.

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Corpus Christi Watershed

President’s Corner

    “Music List” • 22nd in Ordinary Time (Year C)
    Some have expressed interest in perusing the ORDER OF MUSIC I’ve prepared for 31 August 2025, which is the 22nd 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 alongside the official texts in Latin.
    —Jeff Ostrowski
    “The Worm That Dieth Not”
    My pastor asked me to write a column for our parish bulletin with reflections on the sacred liturgy and church music. In my most recent article, I discuss “The Worm That Dieth Not.” At this website, you can access it conveniently; simply scroll down to the one dated 31 August 2025.
    —Jeff Ostrowski
    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

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

“Even after 1600 A.D.—despite major changes in musical taste—the compositions of Father Cristóbal de Morales were reprinted at Venice. Indeed, and as late as 1619 A.D. one Venetian publisher found his magnificats still in sufficient demand to make a profitable commercial venture out of issuing a new transcribed version for equal voices.”

— Dr. Robert Murrell Stevenson (d. 2012)

Recent Posts

  • “Music List” • 22nd in Ordinary Time (Year C)
  • Brave Schola Director Posts ‘Live’ Recording
  • “Cracker Barrel & Catholicism” • Logos and Lessons
  • “Reform of the Reform” officially embraced by USCCB
  • “The Worm That Dieth Not”

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