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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 · June 1, 2015

GIA Publications: “Painful Blessing Of A New Sensitivity”

I really don’t “get” the lyrics in Catholic hymnals by the major publishers.

Jeff Ostrowski · May 30, 2015

Musical Resources • Trinity Sunday (1962 Missal)

The last time we sing “Vidi Aquam” is Pentecost Sunday; now we go back to “Asperges Me.”

Jeff Ostrowski · May 28, 2015

Coolest Liturgical Image Of All Time?

Fantastic photograph taken by our organist during Mass on Sunday…

Jeff Ostrowski · May 28, 2015

Polyphony (3 voices) by Morales with Hymn (2 voices) for the Holy Trinity

Including rehearsal videos and special 13th-century hymn to the Most Holy Trinity.

Jeff Ostrowski · May 26, 2015

You Will Want To Print This Liturgical Article

“Once familiar features of the preconciliar rite are now as remote to us as some obscure aboriginal ritual.” —Msgr. McManus (1980)

Jeff Ostrowski · May 25, 2015

Flashback • Pope Benedict XVI (Pentecost 2008)

For reasons I don’t fully understand, this chasuble was only worn once.

Jeff Ostrowski · May 25, 2015

The Movie “I Confess” Shows A Liturgical Sensibility

Throughout the movie, Hitchcock seems to imitate the liturgy.

Jeff Ostrowski · May 22, 2015

“Veni Creator Spiritus” • With An English Translation By Fr. Adrian Fortescue

A plenary indulgence can be gained by singing the “Veni Creator Spiritus” publicly on Pentecost.

Jeff Ostrowski · May 22, 2015

Resources • Pentecost Sunday (1962 Missal)

On Pentecost Sunday, the FSSP Superior General will visit our parish.

Jeff Ostrowski · May 20, 2015

Review • “American Catholic Hymnbook” (1992)

“Hymns that are directed to the Trinity should not be used, no matter how familiar they may be.”

Jeff Ostrowski · May 18, 2015

Loading Choir Binders • Take II

I’m afraid this article has no point.

Jeff Ostrowski · May 18, 2015

PDF Downloads • Vernacular Mass Settings Published During The 1960s

If they were set upon avoiding the word “men,” I wish ICEL would have done something like “peace on earth to *those* of good will.”

Jeff Ostrowski · May 18, 2015

Josef Cardinal Frings & Pope Benedict XVI

Joseph Ratzinger, an expert at the Council, was also the private secretary of Cardinal Frings, Archbishop of Cologne.

Jeff Ostrowski · May 16, 2015

“Veni Sancte Spiritus” • Sing Directly From An Ancient Manuscript!

Including an (optional) organ accompaniment you won’t want to miss!

Jeff Ostrowski · May 16, 2015

Resources • Sunday after the Ascension (1962 Missal)

We are getting close to Pentecost, when the FSSP Superior General will visit our parish.

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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

An Indult of the “Commission for Russia” (25 November 1929) authorizes Bishops and Administrators Apostolic in Russia to permit the celebration of Mass and the reception of Holy Communion in the afternoon or evening, on condition that a Eucharistic fast of four hours from noon be observed.

— Sacred Congregation of Rites, 25 nov 1929

Recent Posts

  • 2026 Sacred Music Pilgrimage (Washington DC) • With Richard J. Clark
  • “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”

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