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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 · January 26, 2026

Fulton J. Sheen • “24-Hour Catechism”

(4 of 50) “Human Freedom” [a.k.a. “Virgin Birth”]

Jeff Ostrowski · January 20, 2026

Music List • (3rd Sund. Ordinary Time)

Readers have expressed interest in examining my “music list” for this coming Sunday.

Jeff Ostrowski · January 20, 2026

PDF Download • “Tantum Ergo” for 3 Voices (Kevin Allen) Paired with a Hymn for 2 Voices

The children’s choir I direct loves singing Kevin Allen’s music … as does our adult choir!

Jeff Ostrowski · January 19, 2026

Active Participation • “Participatio Actuosa”

“The faithful should also be taught to unite themselves interiorly to what the ministers or choir sing, so that by listening to them they may raise their minds to God.”

Jeff Ostrowski · January 19, 2026

“Holy Name Hymn” (2-Voice Arrangement)

This 2-voice arrangement is free to all.

Jeff Ostrowski · January 19, 2026

PDF Download • Introit (3rd Sn. Ord.)

This coming Sunday—25 January 2026—is the 3rd Sunday in Ordinary Time (Year A).

Jeff Ostrowski · January 19, 2026

“New Hope For Sacred Music!” • Richard J. Clark Interviews Dr. Myrna Keough

Mother to five children, Myrna earned two doctorates (as did her husband), teaches at the seminary, runs a parish music program, and serves on the OCP board of directors.

Jeff Ostrowski · January 18, 2026

Fulton J. Sheen • “24-Hour Catechism”

(3 of 50) “God in Search of Man”

Jeff Ostrowski · January 17, 2026

“Lamb of God” (Musical Setting)

This makes it possible to adjust based upon who’s singing (at which time of day).

Jeff Ostrowski · January 15, 2026

“Sacred Music Journal” Editor Sings w/ Our Choir

How do you pronounce the word “heav’n” when you sing?

Jeff Ostrowski · January 14, 2026

PDF Download • Introit (2nd Sn. Ord.)

This mode is ‘serious’ or ‘dark’ or ‘haunting’—but gorgeous.

Jeff Ostrowski · January 13, 2026

PDF • “Dr. Adrian Fortescue: Priest & Musician”

“No one was ever (outwardly) less priestly; no one was ever (inwardly) more thoroughly a priest.” —Edith Cowell

Jeff Ostrowski · January 12, 2026

PDF Download • “Outrageously Rare” Feder Missal (Latin, French, & English) — 3,290 pages!

A gift to our readers, presented in super-high resolution.

Jeff Ostrowski · January 11, 2026

Fulton J. Sheen • “24-Hour Catechism”

(2 of 50) “Conscience”

Jeff Ostrowski · January 9, 2026

Comm. Fauxbourdon • “What does it sound like?”

Remember the days you prayed for what you have now!

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Corpus Christi Watershed

President’s Corner

    Music List • (2nd Sunday of Lent)
    Readers have expressed interest in seeing the ORDER OF MUSIC I created for this coming Sunday, which is the 2nd Sunday of Lent (1 March 2026). If such a thing interests you, feel free to download it as a PDF file. This feast has magnificent propers. Its somber INTROIT is particularly striking—using a haunting tonality—but the COMMUNION with its fauxbourdon verses is also quite remarkable. I encourage all the readers to visit the feasts website, where the Propria Missae may be downloaded completely free of charge.
    —Jeff Ostrowski
    Like! Like! Like!
    You won’t believe who recently gave us a “like” on the Corpus Christi Watershed FACEBOOK PAGE. Click here (PDF) to see who it was. We were not only sincerely honored, we were utterly flabbergasted. This was truly a resounding endorsement and unmistakable stamp of approval.
    —Jeff Ostrowski
    Which Mass?
    In 1905, when the Vatican Commission on Gregorian Chant began publishing the EDITIO VATICANA—still the Church’s official edition— they assigned different Masses to different types of feasts. However, they were careful to add a note (which began with the words “Qualislibet cantus hujus Ordinarii…”) making clear “chants from one Mass may be used together with those from others.” Sadly, I sometimes worked for TLM priests who weren’t fluent in Latin. As a result, they stubbornly insisted Mass settings were ‘assigned’ to different feasts and seasons (which is false). To understand the great variety, one should examine the 1904 KYRIALE of Dr. Peter Wagner. One should also look through Dom Mocquereau’s Liber Usualis (1904), in which the Masses are all mixed up. For instance, Gloria II in his book ended up being moved to the ‘ad libitum’ appendix in the EDITIO VATICANA.
    —Jeff Ostrowski

Quick Thoughts

    Extreme Unction
    Those who search Google for “CCCC MS 079” will discover high resolution images of a medieval Pontificale (“Cambridge, Corpus Christi College, MS 079”). One of the pages contains this absolutely gorgeous depiction of the Sacrament of Extreme Unction.
    —Corpus Christi Watershed
    PDF Chart • “Plainsong Rhythm”
    I will go to my grave without understanding the lack of curiosity so many people have about the rhythmic modifications made by Dom André Mocquereau. For example, how can someone examine this single sheet comparison chart and at a minimum not be curious about the differences? Dom Mocquereau basically creates a LONG-SHORT LONG-SHORT rhythmic pattern—in spite of enormous and overwhelming manuscript evidence to the contrary. That’s why some scholars referred to his method as “Neo-Mensuralist” or “Neo-Mensuralism.”
    —Jeff Ostrowski
    PDF • “O Come All Ye Faithful” (Simplified)
    I admire the harmonization of “Adeste Fideles” by David Willcocks (d. 2015), who served as director of the Royal College of Music (London, England). In 2025, I was challenged to create a simplified arrangement for organists incapable of playing the authentic version at tempo. The result was this simplified keyboard arrangement (PDF download) based on the David Willcocks version of “O Come All Ye Faithful.” Feel free to play through it and let me know what you think.
    —Jeff Ostrowski

Random Quote

Legitimate and necessary concern for current realities in the concrete lives of people cannot make us forget the true nature of the liturgical actions. It is clear that the Mass is not the time to “celebrate” human dignity or purely terrestrial claims or hopes. It is rather the sacrifice which renders Christ really present in the sacrament.

— Pope Saint John Paul II (20 March 1990)

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  • Extreme Unction
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