• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar

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.”

  • Donate
  • Our Team
    • Our Editorial Policy
    • Who We Are
    • How To Contact Us
    • Sainte Marie Bulletin Articles
    • Jeff’s Mom Joins Fundraiser
    • “Let the Choir Have a Voice” (Essay)
  • Pew Resources
    • Brébeuf Catholic Hymnal
    • Jogues Illuminated Missal
    • Repository • “Spanish Music”
    • KYRIALE • Saint Antoine Daniel
    • Campion Missal, 3rd Edition
  • MUSICAL WEBSITES
    • René Goupil Gregorian Chant
    • Noël Chabanel Psalms
    • Nova Organi Harmonia (2,279 pages)
    • Roman Missal, 3rd Edition
    • Catechism of Gregorian Rhythm
    • Father Enemond Massé Manuscripts
    • Lalemant Polyphonic
    • Feasts Website
  • Miscellaneous
    • Site Map
    • Secrets of the Conscientious Choirmaster
    • “Wedding March” for lazy organists
    • Emporium Kevin Allen
    • Saint Jean de Lalande Library
    • Sacred Music Symposium 2023
    • The Eight Gregorian Modes
    • Gradual by Pothier’s Protégé
    • Seven (7) Considerations
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 · June 16, 2021

“Te Deum Laudamus” • Booklet fits on a single page!

Don’t ask me how this booklet works … but it does.

Follow the Discussion on Facebook

Jeff Ostrowski · June 15, 2021

Hymn • “Christ is King” (Father Ivor Daniel) + Rehearsal Videos!

“Once there were lost islands, but most of them have been found…”

Jeff Ostrowski · June 15, 2021

14 June 2021 • “From Rehearsal…”

One of our choristers recorded this audio excerpt from a recent rehearsal we had. I know there are certain people on the internet who claim that “proper voice leading & harmonies died with Bach in 1750AD…anything goes these days.” But I could not disagree more with such an assertion. The proper rules of harmony and […]

Jeff Ostrowski · June 14, 2021

1975 • Jerry Brown Vs. William F. Buckley: “Was Thomas Aquinas Liberal or Conservative?”

Ronald Reagan stopped being governor of California in 1975; then Jerry Brown was elected. Bizarrely, Brown ended his final term in 2019.

Follow the Discussion on Facebook

Jeff Ostrowski · June 11, 2021

“Easy Polyphonic Agnus Dei” • Part 1 of 3

A perfect canon is the hardest thing to compose—and this is one!

Follow the Discussion on Facebook

Jeff Ostrowski · June 11, 2021

YouTube • “Latin Mass in Scotland”

We seldom post YouTube videos, and hope our readers will pardon this exception…

Jeff Ostrowski · June 10, 2021

What A Real Catholic Conductor Looks Like

What exactly is “the presence” ??

Jeff Ostrowski · June 9, 2021

Jordan B. Peterson • “My Biggest Regret In Life”

…church musicians will be surprised by this!

Jeff Ostrowski · June 8, 2021

Twelve (12) Tips • “Keeping Choir Members Happy”

Add variety to the singing, so choir members will “take delight” in what they are doing—and they should be “taking delight” in singing praises to God.

Follow the Discussion on Facebook

Jeff Ostrowski · June 7, 2021

“Part 2 of 3” • Guerrero Kyrie for Our Lady

This *might* be the most beautiful 45 seconds in music—Father Guerrero’s compositions are truly awe-inspiring!

Follow the Discussion on Facebook

Jeff Ostrowski · June 6, 2021

PDF Drafts • Ten (10) Gregorian Chant Litanies

Here’s what I currently have…but several of these draft copies are pretty ugly!

Follow the Discussion on Facebook

Jeff Ostrowski · June 4, 2021

They Did Something Bad & Inexplicable • (Documentation Included)

I beg you on my hands and knees to read verses 12-20.

Follow the Discussion on Facebook

Jeff Ostrowski · June 3, 2021

3 June 2021 • Re: “Mass of the Angels”

In the past, we have provided thirteen organ accompaniments to Mass VIII (a.k.a. “Missa de Angelis”). Some versions of the KYRIALE use the melody from Sanctus VIII for Agnus VIII also. Dr. Peter Wagner’s 1903 edition of the KYRIALE does this, as we mentioned earlier this month. Please sing through Sanctus VIII and then sing […]

Jeff Ostrowski · June 2, 2021

PDF Download • Organ Accompaniments for “Lauda Sion Salvatorem” (Sequence)

“Man cannot understand this, cannot perceive it; but a lively faith affirms that the change—which is outside the natural course of things—takes place.” (Ladua Sion, v12)

Follow the Discussion on Facebook

Jeff Ostrowski · June 1, 2021

1 June 2021 • Unsure of Author

The editors of this 1667AD Missale Romanum weren’t sure who wrote the VEXILLA REGIS hymn, so they wrote this in the margin. (To be fair, the original text by Bishop Fortunatus was greatly altered under Pope Urban VIII.)

  • « Go to Previous Page
  • Page 1
  • Interim pages omitted …
  • Page 82
  • Page 83
  • Page 84
  • Page 85
  • Page 86
  • Interim pages omitted …
  • Page 193
  • Go to Next Page »

Primary Sidebar

Corpus Christi Watershed

President’s Corner

    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
    Simplified Accomp. • Schubert’s “Ave Maria.”
    Sometimes the organist must simultaneously serve as the CANTOR. (Those who work in the field of church music know exactly what I’m talking about.) One of our contributors composed this simplified keyboard accompaniment for Franz Schubert’s “Ave Maria,” a piece which is frequently requested for Catholic funerals and weddings. In terms of the discussion about whether that piece is too theatrical (‘operatic’) for use in Church, I will leave that discussion to others. All I know is, many church musicians out there will appreciate this simplified version.
    —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

“Our Christian people regard with great joy everything that contributes to the splendor of the ceremonies. Jesus—who was poor in His private life—received ointment on His feet. See Thomas Aquinas (Prima Secundae, q. 102, art. 5, ad 10) and the holy Curé of Ars. The Church has always loved beautiful churches, and so forth. We must preserve our sacred patrimony and make sure sacred objects do not become secular possessions.”

— Abbot & Council Father denouncing “noble simplicity” during Vatican II

Recent Posts

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

Subscribe

Subscribe

* indicates required

Copyright © 2026 Corpus Christi Watershed · Isaac Jogues on Genesis Framework · WordPress · Log in

Corpus Christi Watershed is a 501(c)3 public charity dedicated to exploring and embodying as our calling the relationship of religion, culture, and the arts. This non-profit organization employs the creative media in service of theology, the Church, and Christian culture for the enrichment and enjoyment of the public.