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Corpus Christi Watershed

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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 14, 2020

A Phenomenal Epiphany Hymn!

I wish Epiphany lasted forever—the hymns are rich with theology!

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Jeff Ostrowski · January 14, 2020

Chocolate as payment?

Church musicians realize we’re currently in tough times, but even the greatest artists did not have everything “exactly as they desired.” Vladimir Horowitz (one of the greatest pianists) was often paid for his concerts with CHOCOLATE instead of money. The Russian economy was awful, and nobody had money. But Horowitz didn’t want chocolate; he wanted […]

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Jeff Ostrowski · January 7, 2020

JMO Copy (inviolable) St. Jean de Lalande Library of Rare Books

JMO Copy (inviolable) St. Jean de Lalande Library of Rare Books “The judicious searcher in this remarkable online collection will certainly reap great rewards for his effort.” — Fr. Robert A. Skeris, Benjamin T. Rome School of Music (CUA) HE SAINT Jean de Lalande Library is derived primarily from Jeff Ostrowski’s personal collection of rare […]

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Jeff Ostrowski · December 31, 2019

Hymn • “A Solis Ortus Cardine” (In English)

The Church’s greatest hymn? Many believe it’s this one.

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Jeff Ostrowski · December 30, 2019

PDF Accompaniment • “Jesu Redemptor Omnium”

You can compare my accompaniment to that of Achille P. Bragers.

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Jeff Ostrowski · December 24, 2019

Video • “Hark! The Herald Angels Sing”

Older Catholic hymnals did funny things with this melody.

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Jeff Ostrowski · December 17, 2019

“Agincourt” • Do You Know This Hymn?

I insisted that my interpretation was correct. Then she made a comment that haunts me still.

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Jeff Ostrowski · December 16, 2019

Fr. Peter Gee • My First Chant Teacher

Is it just me, or does England have extremely beautiful churches?

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Jeff Ostrowski · December 12, 2019

Fantastic! • “Somber Yet Powerful” Advent Hymn

It’s impossible to incorporate all the awesome Advent hymns; the season is too short.

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Jeff Ostrowski · December 10, 2019

PDF • “Veni Veni Emmanuel” (2 Voices + Organ)

Download this PDF score—free to all—and sing during Advent!

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Jeff Ostrowski · December 1, 2019

(Archive) • St. Edmund Campion Missal & Hymnal (2nd Edition)

Foreword by Fr. Berg   —   Nine Images   —   2nd Edition Info Table of Contents   —   Executive Summary ORGAN ACCOMPANIMENTS (2 vols.)   —   “How do I open this book properly?” (VIDEOS) INE ART: More than 300 traditional line art illustrations were collected from a special Benedictine archive and […]

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Jeff Ostrowski · November 30, 2019

Fr. Wasilewski: “Evil” to Remove Pachamama Idols

His argument about “theft”—such as removing pornography from a church where children might see it—is incorrect and dangerous.

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Jeff Ostrowski · November 26, 2019

Are Choirmasters Allowed To Have A Bad Day?

By 1941, Horowitz had been playing Rachmaninov’s 3rd Concerto for 23 years…

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Jeff Ostrowski · November 14, 2019

Dominican Priest Calls Gregorian Chant “Infantile”

Fr. Gerard Lessard is upset that millennials “seem to be mainly interested in returning to Gregorian chant and organ music of the distant past.”

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Jeff Ostrowski · November 11, 2019

Video • What Are Common Hymn Melodies?

Short demonstrations by a volunteer parish choir!

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Corpus Christi Watershed

President’s Corner

    Oldest Latin Eucharistic Hymn
    The Church’s oldest Latin Eucharistic hymn is featured in the Brébeuf Hymnal. Indeed, the legendary Father Adrian Fortescue made a translation of it—matching the original’s meter—which was elevated by the Brébeuf team. For years, we’ve been working on a Spanish hymnal: “Cantoral del Padre Antonio Daniel.” The progress has been slow but steady, and we encourage anyone fluent in Spanish to consider joining the proofreading team. A few days ago, my wife helped me record a rehearsal video for this Spanish version of the Church’s oldest Latin Eucharistic hymn.
    —Jeff Ostrowski
    Rare Plainsong Accompaniments
    Our contributor, Veronica Brandt, went deep into Australia to take photographs of organ accompaniments for Gregorian Chant. Some consider these peculiar PLAINSONG ACCOMPANIMENTS—with 3-part harmonies by Barcelona Cathedral organist, Father Josep Muset i Ferrer—to be the rarest in the world. Click here to learn more. Thanks Veronica! 😊
    —Jeff Ostrowski
    “Hidden Chant” • For the Ordinary Form

    Not even the magnificent “GregoBase”—which is incredibly comprehensive—realizes music for this antiphon was published by the Vatican in the 1930s.

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    —Jeff Ostrowski

Quick Thoughts

    “Reader Feedback” • 22 June 2026
    A reader wrote to us from Virginia: “I really appreciate the 23 harmonizations that you posted on CORPUS CHRISTI WATERSHED for the Daily, Daily, Sing to Mary hymn. I hope to find willing voices in our small Schola Cantorum to try the three-voice version. Carry on, sir! You’re doing the Lord’s work.” While we don’t know this gentleman personally, we note that he earned a Ph.D. (which demonstrates that our blog has something for everybody). 😊
    —Corpus Christi Watershed
    Time and Again We Are Asked…
    John Baptist Singenberger (d. 1924) was a central figure of Catholic Church music. In this utterly fascinating excerpt (Single-Page PDF), Singenberger writes: Time and again we are asked: “Is the Gregorian chant to be accompanied by the organ?” As a young student in Saint Gall, Singenberger befriended SEBASTIAN GEBHARD MESSMER, the future Archbishop of Milwaukee (Wisconsin). The two graduated together in 1861. The school they attended (Saint George’s Seminary) was a “seminary”—but in the older European sense. In other words, it provided a classical education without necessarily leading to ordination. Singenberger remained a layman his whole life, but Messmer was eventually made archbishop—by Pope Saint Pius X—of the very archdiocese in Wisconsin where Singenberger would spend his American career, giving him a powerful ecclesiastical ally.
    —Jeff Ostrowski
    “Reminder” — Month of June (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). Since we were founded in 2006, not one of our board members has ever accepted any remuneration whatsoever—not a penny. 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

Random Quote

“You have thereby removed from the celebration of the Mass all superstitions, all greed for lucre, and all irreverence … removed its celebrations from private homes and profane places to holy and consecrated sanctuaries. You have banished from the temple of the Lord the more effeminate singing and musical compositions.”

— ‘Bishop Racozonus, speaking at the last session of the Council of Trent (1563)’

Recent Posts

  • All 150 Psalms (in Latin) • “With Accents”
  • Two Ways to Defile a Hymn • (And How Not To)
  • “Reader Feedback” • 22 June 2026
  • These Photographs Are Utterly Astounding !
  • Public Criticism of Jeff Ostrowski’s Singing Voice • Also: “Dich König loben wir”

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