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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 · August 18, 2016

“Polyphony For Dummies”

A new video presentation with excellent audio samples.

Jeff Ostrowski · August 16, 2016

Breathtaking Images from Poland

A liturgical workshop took place in Licheń, Poland from 4-11 August 2016.

Jeff Ostrowski · August 15, 2016

Hymn for St. Thomas More & St. John Fisher

Fascinating verses by Msgr. Ronald Knox

Jeff Ostrowski · August 12, 2016

Major Media Outlet Re: “Ad Orientem”

Corpus Christi Watershed is mentioned and cited!

Jeff Ostrowski · August 12, 2016

Musical Resources • 14th Sunday after Pentecost

“May Thy Sacraments, O Lord, ever purify and fortify us…”

Jeff Ostrowski · August 11, 2016

Hymn Tunes • What’s Up With Naming Them?

Until recently, most Catholic hymnals didn’t have a metrical index!

Jeff Ostrowski · August 10, 2016

Worst Typo Of All Time?

This one got by the editor’s eye!

Jeff Ostrowski · August 9, 2016

Too Many Sopranos? Try This Canon!

A compositional miracle by Rev’d Tomás Luis de Victoria (d. 1611).

Jeff Ostrowski · August 8, 2016

Being Careful With Hymns

Each individual “ear” must decide what is acceptable.

Jeff Ostrowski · August 6, 2016

Interesting Points in this Sunday’s Offertory

Do you understand why I’ve highlighted various points?

Jeff Ostrowski · August 3, 2016

The “Long & Short” of Latin Hymns

Such underlay would be considered loathsome by composers like Guerrero. Indeed, it’s an impossibility!

Jeff Ostrowski · August 2, 2016

Eugenio Cardinal Pacelli in Cappa Magna

Anyone care to hazard a guess regarding why a blue biretta would have been used circa 1933?

Jeff Ostrowski · August 1, 2016

Does Your Bishop Enforce The GIRM?

They will assume—and why shouldn’t they?—that “approved by the USCCB” applies to the hymns and songs…

Jeff Ostrowski · July 30, 2016

Why is a Raven Like a Writing Desk?

“To the historian their decisions are disgusting nonsense that people of my kind want simply to ignore.” — Fr. Adrian Fortescue (1919)

Jeff Ostrowski · July 27, 2016

Letter To A Volunteer Choir…

The singers know their individual contribution is essential.

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Corpus Christi Watershed

President’s Corner

    PDF • “3-Voice Motet” (Father De Laet)
    I believe 99% of our readers will recognize this hymn tune. Perhaps Father Edgard De Laet should have called it a ‘hymn’ instead of a ‘motet for three voices’—but he’s technically correct, since MOTET is defined as: “a short piece of sacred choral music, typically polyphonic and unaccompanied.” The even verses are for three voices, as you will see if you download the PDF score at #20245. The odd verses may be song a cappella SATB or unison with organ.
    —Jeff Ostrowski
    PDF Download • “Hymn for 2 Voices”
    Readers who click on this video will see that it starts with verses of the “Pange Lingua” hymn by Saint Thomas Aquinas (d. 1274) arranged for two voices. However, there’s a polyphonic refrain (“Tantum Ergo”) for three voices, taken from Kevin Allen’s Motecta Trium Vocum. If your choir is very small, this piece is for you! You can download the PDF score free of charge—and you can also utilize the rehearsal videos for each individual voice—by navigating yourself to #20323.
    —Jeff Ostrowski
    “Holy Name Hymn” (2-Voice Arrangement)
    When we post a direct URL link, we frequently get thousands of downloads. But when scrolling is required, very few take the time. I mention this because those who click on this URL link and scroll to the bottom can download—completely free of charge—a clever 2-voice arrangement for a famous hymn to the Most Holy Name of Jesus. In a pinch, it can be nicely sung by one male and one female! It will be of interest to those who seek arrangements for two voices.
    —Jeff Ostrowski

Quick Thoughts

    “Reminder” — Month of January (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. Signing up couldn’t be easier: simply scroll to the bottom of any blog article and enter your email address.
    —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
    PDF Download • “In Paradisum” in English
    We always sing the IN PARADISUM in Latin, as printed on this PDF score. I have an appallingly bad memory (meaning I’d be a horrible witness in court). In any event, it’s been brought to my attention that 15 years ago I created this organ accompaniment for the famous and beautiful ‘IN PARADISUM’ Gregorian chant sung in English according to ‘MR3’ (Roman Missal, Third Edition). If anyone desires such a thing, feel free to download and print. Looking back, I wish I’d brought the TENOR and BASS voices into a unison (on B-Natural) for the word “welcome” on the second line.
    —Jeff Ostrowski

Random Quote

“The Church has always kept, and wishes still to maintain everywhere, the language of her Liturgy; and, before the sad and violent changes of the 16th century, this eloquent and effective symbol of unity of faith and communion of the faithful was, as you know, cherished in England not less than elsewhere. But this has never been regarded by the Holy See as incompatible with the use of popular hymns in the language of each country.”

— Pope Leo XIII (1898)

Recent Posts

  • PDF • “3-Voice Motet” (Father De Laet)
  • PDF Download • “Hymn for 2 Voices”
  • (January 2026) • “Children Singing Plainsong”
  • “Inquiry” • For Music Directors of Cathedrals and Larger Parish Churches
  • PDF Download • “Pange Lingua” for Three Voices (Father Edgard De Laet)

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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.