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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

PDF Download

Jeff Ostrowski · January 25, 2025

“What Are the Urbanite Hymns?” (4-Page PDF)

“No one who knows anything about the subject now doubts that that revision of Urban VIII was a ghastly mistake, for which there is not one single word of any kind to be said.” —Father Adrian Fortescue

Jeff Ostrowski · January 24, 2025

“Music List” • 3rd Sunday (Ord. Time)

Readers have expressed interest in examining the “music list” I prepared for this coming Sunday.

Jeff Ostrowski · January 24, 2025

Only Every Three Years…

Communion antiphon for the 3rd Sunday in Ordinary Time (Year C).

Jeff Ostrowski · January 23, 2025

“Entrance Chant” • 3rd Sunday (Ord. Time)

This English adaptation uses a Tetrardus mode, as does the authentic Gregorian Chant version.

Jeff Ostrowski · January 22, 2025

“Remembering William Mahrt” • My interview with Dr. Horst Buchholz (21 January 2025)

Includes Dr. Buchholz’s obituary for William Mahrt: “A Gentleman, a Scholar, and a Friend”

Jeff Ostrowski · January 22, 2025

PDF Download • “Pipe Organ Recessional” (Manuals Only) — George Frederick Handel

I have a confession to make…

Jeff Ostrowski · January 21, 2025

PDF Download • Singers’ Wedding Booklet (28 Pages)

I don’t pretend to have an answer to this question.

Jeff Ostrowski · January 20, 2025

PDF • “Gloria VIII” on 5 lines!

As of a few minutes ago, you can freely download this PDF score.

Julie Huebner · January 19, 2025

PDF Download • “Small Choirs, Unite!” (2nd Part)

This is definitely a piece worth bringing out for choirs of all sizes!

Jeff Ostrowski · January 18, 2025

“Music List” • 2nd Sunday (Ord. Time)

Readers have expressed interest in examining the “music list” I prepared for this coming Sunday.

Jeff Ostrowski · January 17, 2025

“2-Voice Piece” • For February 2nd

The hymn traditionally sung on the feast of the Purification.

Jeff Ostrowski · January 15, 2025

“Entrance Chant” • 2nd Sunday (Ord. Time)

This English adaptation matches the mode of the authentic Gregorian Chant version.

Jeff Ostrowski · January 14, 2025

PDF Download • “Rare Hymnal” (1966) by Monsignor Hayburn and Others — 632 Pages!

In 1979, Monsignor Robert F. Hayburn published an important book called: “Papal Legislation on Sacred Music.”

Jeff Ostrowski · January 14, 2025

Repugnant Rhymes in Hymns

This stuck out like a sore thumb.

Jeff Ostrowski · January 14, 2025

Was “Ordinary Time” Found in the 1962 Missal?

The answer might surprise you!

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Corpus Christi Watershed

President’s Corner

    “Reminder” — Month of April (2026)
    On a daily basis, I speak to people who don’t realize we publish a free newsletter (although they’ve followed our blog for years). We have no endowment, no major donors, no savings, and refuse to run annoying ads. As a result, our mailing list is crucial to our survival. It couldn’t be easier to subscribe! Just scroll to the bottom of any blog article and enter your email address.
    —Jeff Ostrowski
    Simplified Accompaniment (Easter Hymn)
    Number 36 in the Brébeuf Hymnal is “At the Lamb’s high feast we sing,” an English translation for Ad Cenam Agni Próvidi (which was called “Ad Régias Agni Dapes” starting 1631). As of this morning, you can download a simplified keyboard accompaniment for it. Simply click here and scroll to the bottom. Many organists are forced to serve simultaneously as both CANTOR and ACCOMPANIST. In spite of what some claim, this can be difficult—which explains why choirmasters appreciate these simplified keyboard accompaniments. Sadly, many readers will click that link but forget to scroll to the bottom where the simplified PDF file is located.
    —Jeff Ostrowski
    PDF Download • “Quasi Modo Sunday”
    The Introit for “Quasi Modo Sunday” (12 April 2026) is particularly beautiful. The musical score can be downloaded as a PDF file, and so can the organ accompaniment. The official language of the Catholic Church is Latin (whereas Greek is our mother tongue). Vatican II said Gregorian Chant must be given “first place” under normal circumstances. As a result, some parishes will rightly sing the authentic version. On the other hand, because so many USA dioceses disobey the mandate of Vatican II, some musicians sing plainsong in the vernacular. I have attempted to simultaneously accompany myself on the pipe organ while singing the English version. Although very few take advantage of it, the complete Proprium Missae is posted at the flourishing feasts website.
    —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

«In the same quarter where he was crucified there was a garden.» (John 19:41) — The word “garden” hinted at Eden and the fall of man, as it also suggested through its flowers in the springtime the Resurrection from the dead.

— Fulton J. Sheen

Recent Posts

  • “Reminder” — Month of April (2026)
  • “Gregorian Chant Isn’t a Platform for Your Personal Theories, Jeff” • (A Letter We Received)
  • Request From Australia
  • PDF Download • “Anima Christi”
  • PDF Download • “Rarer Than a Blue Moon” — Side-by-Side English Translation (Pius XII Psalter)

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