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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 · October 20, 2025

“Can Choral Music Survive?” • 3 Reasons It Will

You may think I’m crazy, but I have a belief when it comes to choral music.

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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Corpus Christi Watershed

President’s Corner

    PDF • “Music List” (Xmas Midnight Mass)
    Readers have expressed interest in perusing the ORDER OF MUSIC I’ve prepared for Christmas Midnight Mass (“Ad Missam In Nocte”). If such a thing interests you, feel free to download it as a PDF file. The ENTRANCE CHANT is simple, but quite beautiful. As always, the Responsorial Psalm, Gospel Acclamation, and Mass Propers for this Sunday are available at the feasts website alongside the official texts in Latin.
    —Jeff Ostrowski
    PDF • “Music List” (4th Sunday of Advent)
    Readers have expressed interest in perusing the ORDER OF MUSIC I’ve prepared for 21 December 2025, which is the 4th Sunday of Advent (Year A). If such a thing interests you, feel free to download it as a PDF file. The ENTRANCE CHANT is the famous “Roráte Coeli” and the fauxbourdon setting of the COMMUNION is exquisite. As always, the Responsorial Psalm, Gospel Acclamation, and Mass Propers for this Sunday are available at the feasts website alongside the official texts in Latin.
    —Jeff Ostrowski
    PDF • Our Lady of Guadalupe (12 Dec.)
    The Responsorial Psalm may be downloaded as a PDF file (organist & vocalist) for 12 December, which is the Feast of Our Lady of Guadalupe. When it comes to the formulary for this Mass, it’s astounding how infrequently it’s included in official books. Prior to Vatican II, one had to search through “supplemental material” printed in the back of hand-missals and graduals. But since 1970, the feast is virtually nonexistent. According to the UNIVERSAL KALENDAR, 12 December is the “Feast of Saint Jane Frances De Chantal, Religious” (Die 12 decembris: S. Ioannæ Franciscæ de Chantal, religiosæ). Why should that feast overpower Our Lady of Guadalupe? In the United States, OLG is celebrated—and I’d assume in Mexico, Central America, South America, and Canada—but, as I said, the Propria Missae are virtually impossible to locate. I possess only three books which mention this feast.
    —Jeff Ostrowski

Quick Thoughts

    What does this mean? “Pre-Urbanite”
    One of the things informed critics have frequently praised vis-à-vis the Saint Jean de Brébeuf Hymnal has to do with its careful treatment of the ancient hymns vs. the “Urbanite” hymns. This topic I had believed to be fairly well understood—but I was wrong. The reason I thought people knew about it is simple; in the EDITIO VATICANA 1908 Graduale Romanum (as well as the 1913 Liber Antiphonarius) both versions are provided, right next to each other. You can see what I mean by examining this PDF file from the Roman Gradual of 1908. Most people still don’t understand that the Urbanite versions were never adopted by any priests or monks who sang the Divine Office each day. Switching would have required a massive amount of effort and money, because all the books would need to be changed.
    —Jeff Ostrowski
    PDF Download • “Santo Santo Santo”
    Those searching for a dignified, brief, simple, bright setting of SANCTUS in Spanish (“Santo Santo Santo”) are invited to download this Setting in honor of Saint John Brébeuf (organist & vocalist). I wonder if there would be any interest in me recording a rehearsal video for this piece.
    —Jeff Ostrowski
    Pope Leo XIV on Sacred Music
    On 5 December 2025, Pope Leo XIV made this declaration with regard to liturgical music.
    —Corpus Christi Watershed

Random Quote

No concession should ever be made for the singing of the Exsultet, in whole or in part, in the vernacular.

— ‘Fr. Augustin Bea, S.J. in the years immediately before the Second Vatican Council’

Recent Posts

  • Should Catholics Sing Protestant Christmas Carols?
  • PDF • “Music List” (Xmas Midnight Mass)
  • What does this mean? “Pre-Urbanite”
  • “He never had a single day of conflict with anyone.”
  • PDF • “Standard Gregorian Chants for Schools, Churches, Seminaries, & Convents” (1946) —123 pages

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