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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 11, 2016

Ludwig Passini: “Canons in the Church of St. Peter”

Their garments resemble the “winter” cappa magna.

Jeff Ostrowski · January 11, 2016

Gregory Ceurvorst Harmonizing The Chabanel Psalms

I saw something cool on YouTube.

Jeff Ostrowski · January 9, 2016

Musical Resources • Feast of the Holy Family (Extraordinary Form)

“O Lord Jesus Christ, who—in the days of thy sub­jec­tion to Mary and Joseph—didst consecrate home life by ineffable acts of virtue…”

Jeff Ostrowski · January 9, 2016

Letter To The FSSP Choir In Los Angeles

There’s something less scary you can do to help build up God’s Kingdom.

Jeff Ostrowski · January 9, 2016

VIDEO • Archbishop Fulton J. Sheen & William F. Buckley

In 1971, Sheen appeared on “Firing Line” and spoke about St. Augustine.

Jeff Ostrowski · January 8, 2016

The Miraculous Rise Of The Traditional Latin Mass

A puzzling article appeared in the National Catholic Register by Msgr. Charles Pope.

Jeff Ostrowski · January 7, 2016

Bishop René H. Gracida On Internet Porn

“Parents, love your children and do your best to shield them from exposure to pornography.” —Bishop Gracida

Jeff Ostrowski · January 5, 2016

Church Music: True Diversity Vs. False Diversity

Liturgical progressives constantly praise the “stylistic diversity” of the Ordinary Form, but the truth is surprising.

Jeff Ostrowski · January 5, 2016

| Part 2 of 3 | • “Kyrie Eleison” (SATB) within the reach of any choir!

By the mighty Francisco Guerrero!

Jeff Ostrowski · January 1, 2016

Update • “Graduale Parvum” (English & Latin)

They have now posted Advent for double-sided printing in book form.

Jeff Ostrowski · January 1, 2016

PDF Download • New Composition By Kevin Allen

This SATB setting of “Jesu Dulcis Memoria” will help you start 2016 on the right foot!

Jeff Ostrowski · December 31, 2015

Musical Resources • Most Holy Name (Extraordinary Form)

“…mercifully grant that we may in heaven enjoy the blessed vision of him, to whose most holy name we do reverence upon earth.”

Jeff Ostrowski · December 30, 2015

Which Mass Goes With Which Season?

Unfortunately, many ignore the words of Abbot Pothier, included at the front of the Vatican Edition.

Jeff Ostrowski · December 30, 2015

Another “Oops” Moment For Liturgical Press

Msgr. Kevin Irwin says this book “reflects the best of liturgical scholarship and wisdom gleaned from the liturgy.”

Jeff Ostrowski · December 29, 2015

PDF • “The Truth Of Papal Claims” (Merry del Val)

Cardinal Raphael Merry del Val published this reply to a Protestant scholar in 1902.

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Corpus Christi Watershed

President’s Corner

    Heretical Hymns
    As a public service, perhaps a theologian ought to begin assembling a heretical hymns collection. A liturgical book—for funerals!—published by the Collegeville Press contains this monstrosity by someone named “Delores Dufner.” I can’t tell what the lyrics are trying to convey—can you? I detest ‘hymns’ with lines such the one she came up with: “Let the thirsty come and drink, Share My wine and bread.” Somehow, the publication was granted an IMPRIMATUR by Most Rev’d Jerome Hanus (bishop of Saint Cloud) on 16 August 1989. It’s a nice tune, but paired with a nasty text!
    —Jeff Ostrowski
    💲 5.00 💵
    Our tiny 501(c)3 nonprofit organization exists solely by generous readers who donate $5.00 per month. We have no endowment; we have no major donors; we run no advertisements; we have no savings. A donor wrote to us: “I so appreciate all you do and have done, and your generosity is unprecedented. I am honored to be able to make a monthly contribution.” Another monthly donor says: “Thank you for everything CC Watershed does. We are able to add so much solemnity to Holy Mass due to the resources made available here.” Can you spare a few dollars each month to help us survive?
    —Corpus Christi Watershed
    Dom Pothier • Photo from 1904
    Dom Paul Cagin, in a 1904 publication (L’oeuvre de Solesmes dans la restauration du chant grégorien) made sure to include a beautiful image of Dom Pothier, the legendary abbot of St-Wandrille. Also shown is a very young Dom André Mocquereau. Auguste Pécoul—considered the spiritual “son” of Abbat Prosper Guéranger of Solesmes—wrote as follows on 24 June 1901: “To forestall any confusion, let us remember that there is just one Gregorian notation—that restored, according to the ancient manuscripts, by the eminent Abbot of Saint-Wandrille, Dom Pothier.” ✠
    —Jeff Ostrowski

Quick Thoughts

    “Reminder” — Month of Febr. (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
    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

But the revisers did not leave them altogether untouched. Saint Ambrose had to be “corrected.” The ‘Iste Confessor’ was greatly altered and the hymn for the Dedication of a Church (which no one ought to have touched) was completely recast in a new meter.

— Father Joseph Connelly

Recent Posts

  • Heretical Hymns
  • Alphabetizing Hymn Titles Inside Hymnals • “Does This Make Any Sense?”
  • Fulton J. Sheen • “24-Hour Catechism”
  • “Reminder” — Month of Febr. (2026)
  • Seminary Music Directors Gather in Houston

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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.