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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

President's Corner

Jeff Ostrowski · November 9, 2023

“Organ Interlude” (Dom Gregory Murray)

In my humble opinion, Dom Gregory Murray (d. 1992) was a splendid composer. Here’s my attempt to perform one of his INTERLUDES on the pipe organ. I’m not a “concert organist” so I deeply appreciate any feedback—especially about registration. By the way, you can download a fantastic collection of ORGAN INTERLUDES—all 104 pages completely free […]

Jeff Ostrowski · November 9, 2023

November Reminder • Please help!

Many still don’t know about our email newsletter! Please sign up! Simply scroll to the bottom of any blog article and enter your email address. It helps us very much when you join our mailing list. Thank you!

Jeff Ostrowski · November 8, 2023

1950s Mandatory Military Service? Huh?

I would be very curious to know what readers think about this claim made by Patrick J. Buchanan. He says military service in the 1950s was obligatory in the United States. Is this true? Let me know your thoughts by scrolling to the bottom of this page, where an email address is provided. Patrick J. […]

Jeff Ostrowski · November 8, 2023

“No Fourth Sunday of Advent” (EF)

In the Extraordinary Form (“Missale Vetustum”) because Christmas falls on a Monday in 2023, the Vigil of the Nativity of Our Lord takes precedence over the Fourth Sunday of Advent. This usually only happens about every six years or so. I will miss the 4th Sunday of Advent, but the VIGIL Mass is also quite […]

Jeff Ostrowski · November 5, 2023

When just 13 years old, Beethoven……

Bach’s Well-Tempered Clavier (WTC) was not officially published until 1801. By that time, many hand-copied manuscripts had circulated through Europe. According to Charles Rosen: “Beethoven, at the age of 13, played the entire WTC in public.” His feat was published in the newspapers of that time. In my view, both books of the WTC—with a […]

Corpus Christi Watershed · November 4, 2023

Kevin Allen … for 500 Altar Servers!

Corpus Christi Watershed was sent this fascinating message vis-à-vis motets of Kevin Allen being sung in a Mass with 500+ altar servers present. If anyone has more information, we would love to hear more details about this event!

Jeff Ostrowski · November 3, 2023

Dissonant Chord? • (not in context)

If you play nothing but the notes and chord highlighted by yellow in this passage from the “Haec Dies” Gradual, it’s quite ugly and dissonant. However, in the context of the stepwise descending bass-line, the LEMMENSINSTITUUT does not disappoint!

Jeff Ostrowski · October 23, 2023

Jeff As Organist? • His Attempt…

I’m attempting to record (on the pipe organ) any hymn contained in the Brébeuf Hymnal which doesn’t yet have its own rehearsal video with real voices. You can listen to my latest attempt: a hymn called DEVONSHIRE. For the second verse, I attempted to change the registration. Please let me know what you think. I […]

Jeff Ostrowski · October 20, 2023

Playing Pipe Organ = Very Difficult!

Not every hymn contained in the Brébeuf Hymnal has its own rehearsal video. In the meantime, I’m attempting to provide pipe organ recordings for the missing hymns. Today, I attempted to record COBLENZ, with a harmonization based on Sir Richard R. Terry. You can listen to my recording by clicking here. Whenever the record button […]

Jeff Ostrowski · October 18, 2023

PDF • “Mass Propers in English” (113 pages)

The University of Kansas has made available—as a free PDF document—this 2017 dissertation (113 pages) by Dr. Katherine Schmitz. The full title of the dissertation is: Chanting the Propers: A Comparative Study of Selected English Sources for the Catholic Mass. Dr. Schmitz is a Gregorian Chant scholar who has earned degrees from the University of […]

Jeff Ostrowski · October 15, 2023

Can Nobody Help Us?

We are still searching for someone who can obtain for us a physical copy of either VOLUME 2 or VOLUME 8 of the accompaniments done by the LEMMENSINSTITUUT during the 1940s. Jeff’s personal copies were stolen.

Jeff Ostrowski · October 12, 2023

12 October 2023 • FEEDBACK

One of the more colorful emails we’ve received: “Jeff, I often disagree with your articles, but let me give credit where credit is due. You are surely the only person I know who could somehow tie together John F Kennedy, Lyndon B Johnson, Senator Barry Goldwater, and sacred music!” [The article she references is called Must […]

Jeff Ostrowski · October 12, 2023

Responsorial Psalm • “Eight Options”

In all seriousness, this article deals with some very dry topics. When I say “dry,” I mean technical (or even “boring”). Therefore, I wasn’t really expecting anyone to click on it. I was pleasantly surprised earlier this morning to see that it’s been one of our most highly downloaded articles over the last two weeks!

Jeff Ostrowski · October 10, 2023

Young Girl Imitates Jeff Ostrowski Conducting!

They say imitation is the highest form of flattery.

Jeff Ostrowski · October 6, 2023

“Christ the King” is coming up…

I’ve attempted to record the INTROIT for the Feast of Christ the King according to the official rhythm of the Catholic Church. You can view the YouTube recording of my attempt. Traditionally, our Savior’s “kingship” was celebrated as part of the Epiphany—but in 1925, Pope Pius XI created the “feast of Christ the King” to […]

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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

“How on earth in the [post-conciliar] liturgy for the dead should there be no more mention of sin and expiation? There’s a complete absence of imploring the Lord’s mercy. […] Although the texts were beautiful they were still lacking in the sense of sin and the sense of mercy. But we need this! And when my final hour comes, ask for mercy for me from the Lord, because I have such need of it!”

— Pope Saint Paul VI (3 June 1971)

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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